Merge tag 'docs-4.10' of git://git.lwn.net/linux
authorLinus Torvalds <torvalds@linux-foundation.org>
Tue, 13 Dec 2016 05:58:13 +0000 (21:58 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 13 Dec 2016 05:58:13 +0000 (21:58 -0800)
Pull documentation update from Jonathan Corbet:
 "These are the documentation changes for 4.10.

  It's another busy cycle for the docs tree, as the sphinx conversion
  continues. Highlights include:

   - Further work on PDF output, which remains a bit of a pain but
     should be more solid now.

   - Five more DocBook template files converted to Sphinx. Only 27 to
     go... Lots of plain-text files have also been converted and
     integrated.

   - Images in binary formats have been replaced with more
     source-friendly versions.

   - Various bits of organizational work, including the renaming of
     various files discussed at the kernel summit.

   - New documentation for the device_link mechanism.

  ... and, of course, lots of typo fixes and small updates"

* tag 'docs-4.10' of git://git.lwn.net/linux: (193 commits)
  dma-buf: Extract dma-buf.rst
  Update Documentation/00-INDEX
  docs: 00-INDEX: document directories/files with no docs
  docs: 00-INDEX: remove non-existing entries
  docs: 00-INDEX: add missing entries for documentation files/dirs
  docs: 00-INDEX: consolidate process/ and admin-guide/ description
  scripts: add a script to check if Documentation/00-INDEX is sane
  Docs: change sh -> awk in REPORTING-BUGS
  Documentation/core-api/device_link: Add initial documentation
  core-api: remove an unexpected unident
  ppc/idle: Add documentation for powersave=off
  Doc: Correct typo, "Introdution" => "Introduction"
  Documentation/atomic_ops.txt: convert to ReST markup
  Documentation/local_ops.txt: convert to ReST markup
  Documentation/assoc_array.txt: convert to ReST markup
  docs-rst: parse-headers.pl: cleanup the documentation
  docs-rst: fix media cleandocs target
  docs-rst: media/Makefile: reorganize the rules
  docs-rst: media: build SVG from graphviz files
  docs-rst: replace bayer.png by a SVG image
  ...

1  2 
Documentation/admin-guide/kernel-parameters.txt
Documentation/filesystems/proc.txt
Documentation/sysctl/kernel.txt
MAINTAINERS
arch/x86/Kconfig
include/linux/device.h
init/Kconfig
init/main.c
lib/Kconfig.debug
scripts/checkpatch.pl

index 0000000000000000000000000000000000000000,456248b2722056a4a1f144c0cf8b090106cb478a..62d68b2056de116c556d92a555244c14be1d2e2a
mode 000000,100644..100644
--- /dev/null
@@@ -1,0 -1,4373 +1,4367 @@@
 -      eagerfpu=       [X86]
 -                      on      enable eager fpu restore
 -                      off     disable eager fpu restore
 -                      auto    selects the default scheme, which automatically
 -                              enables eagerfpu restore for xsaveopt.
 -
+       acpi=           [HW,ACPI,X86,ARM64]
+                       Advanced Configuration and Power Interface
+                       Format: { force | on | off | strict | noirq | rsdt |
+                                 copy_dsdt }
+                       force -- enable ACPI if default was off
+                       on -- enable ACPI but allow fallback to DT [arm64]
+                       off -- disable ACPI if default was on
+                       noirq -- do not use ACPI for IRQ routing
+                       strict -- Be less tolerant of platforms that are not
+                               strictly ACPI specification compliant.
+                       rsdt -- prefer RSDT over (default) XSDT
+                       copy_dsdt -- copy DSDT to memory
+                       For ARM64, ONLY "acpi=off", "acpi=on" or "acpi=force"
+                       are available
+                       See also Documentation/power/runtime_pm.txt, pci=noacpi
+       acpi_apic_instance=     [ACPI, IOAPIC]
+                       Format: <int>
+                       2: use 2nd APIC table, if available
+                       1,0: use 1st APIC table
+                       default: 0
+       acpi_backlight= [HW,ACPI]
+                       acpi_backlight=vendor
+                       acpi_backlight=video
+                       If set to vendor, prefer vendor specific driver
+                       (e.g. thinkpad_acpi, sony_acpi, etc.) instead
+                       of the ACPI video.ko driver.
+       acpi_force_32bit_fadt_addr
+                       force FADT to use 32 bit addresses rather than the
+                       64 bit X_* addresses. Some firmware have broken 64
+                       bit addresses for force ACPI ignore these and use
+                       the older legacy 32 bit addresses.
+       acpica_no_return_repair [HW, ACPI]
+                       Disable AML predefined validation mechanism
+                       This mechanism can repair the evaluation result to make
+                       the return objects more ACPI specification compliant.
+                       This option is useful for developers to identify the
+                       root cause of an AML interpreter issue when the issue
+                       has something to do with the repair mechanism.
+       acpi.debug_layer=       [HW,ACPI,ACPI_DEBUG]
+       acpi.debug_level=       [HW,ACPI,ACPI_DEBUG]
+                       Format: <int>
+                       CONFIG_ACPI_DEBUG must be enabled to produce any ACPI
+                       debug output.  Bits in debug_layer correspond to a
+                       _COMPONENT in an ACPI source file, e.g.,
+                           #define _COMPONENT ACPI_PCI_COMPONENT
+                       Bits in debug_level correspond to a level in
+                       ACPI_DEBUG_PRINT statements, e.g.,
+                           ACPI_DEBUG_PRINT((ACPI_DB_INFO, ...
+                       The debug_level mask defaults to "info".  See
+                       Documentation/acpi/debug.txt for more information about
+                       debug layers and levels.
+                       Enable processor driver info messages:
+                           acpi.debug_layer=0x20000000
+                       Enable PCI/PCI interrupt routing info messages:
+                           acpi.debug_layer=0x400000
+                       Enable AML "Debug" output, i.e., stores to the Debug
+                       object while interpreting AML:
+                           acpi.debug_layer=0xffffffff acpi.debug_level=0x2
+                       Enable all messages related to ACPI hardware:
+                           acpi.debug_layer=0x2 acpi.debug_level=0xffffffff
+                       Some values produce so much output that the system is
+                       unusable.  The "log_buf_len" parameter may be useful
+                       if you need to capture more output.
+       acpi_enforce_resources= [ACPI]
+                       { strict | lax | no }
+                       Check for resource conflicts between native drivers
+                       and ACPI OperationRegions (SystemIO and SystemMemory
+                       only). IO ports and memory declared in ACPI might be
+                       used by the ACPI subsystem in arbitrary AML code and
+                       can interfere with legacy drivers.
+                       strict (default): access to resources claimed by ACPI
+                       is denied; legacy drivers trying to access reserved
+                       resources will fail to bind to device using them.
+                       lax: access to resources claimed by ACPI is allowed;
+                       legacy drivers trying to access reserved resources
+                       will bind successfully but a warning message is logged.
+                       no: ACPI OperationRegions are not marked as reserved,
+                       no further checks are performed.
+       acpi_force_table_verification   [HW,ACPI]
+                       Enable table checksum verification during early stage.
+                       By default, this is disabled due to x86 early mapping
+                       size limitation.
+       acpi_irq_balance [HW,ACPI]
+                       ACPI will balance active IRQs
+                       default in APIC mode
+       acpi_irq_nobalance [HW,ACPI]
+                       ACPI will not move active IRQs (default)
+                       default in PIC mode
+       acpi_irq_isa=   [HW,ACPI] If irq_balance, mark listed IRQs used by ISA
+                       Format: <irq>,<irq>...
+       acpi_irq_pci=   [HW,ACPI] If irq_balance, clear listed IRQs for
+                       use by PCI
+                       Format: <irq>,<irq>...
+       acpi_no_auto_serialize  [HW,ACPI]
+                       Disable auto-serialization of AML methods
+                       AML control methods that contain the opcodes to create
+                       named objects will be marked as "Serialized" by the
+                       auto-serialization feature.
+                       This feature is enabled by default.
+                       This option allows to turn off the feature.
+       acpi_no_memhotplug [ACPI] Disable memory hotplug.  Useful for kdump
+                          kernels.
+       acpi_no_static_ssdt     [HW,ACPI]
+                       Disable installation of static SSDTs at early boot time
+                       By default, SSDTs contained in the RSDT/XSDT will be
+                       installed automatically and they will appear under
+                       /sys/firmware/acpi/tables.
+                       This option turns off this feature.
+                       Note that specifying this option does not affect
+                       dynamic table installation which will install SSDT
+                       tables to /sys/firmware/acpi/tables/dynamic.
+       acpi_rsdp=      [ACPI,EFI,KEXEC]
+                       Pass the RSDP address to the kernel, mostly used
+                       on machines running EFI runtime service to boot the
+                       second kernel for kdump.
+       acpi_os_name=   [HW,ACPI] Tell ACPI BIOS the name of the OS
+                       Format: To spoof as Windows 98: ="Microsoft Windows"
+       acpi_rev_override [ACPI] Override the _REV object to return 5 (instead
+                       of 2 which is mandated by ACPI 6) as the supported ACPI
+                       specification revision (when using this switch, it may
+                       be necessary to carry out a cold reboot _twice_ in a
+                       row to make it take effect on the platform firmware).
+       acpi_osi=       [HW,ACPI] Modify list of supported OS interface strings
+                       acpi_osi="string1"      # add string1
+                       acpi_osi="!string2"     # remove string2
+                       acpi_osi=!*             # remove all strings
+                       acpi_osi=!              # disable all built-in OS vendor
+                                                 strings
+                       acpi_osi=!!             # enable all built-in OS vendor
+                                                 strings
+                       acpi_osi=               # disable all strings
+                       'acpi_osi=!' can be used in combination with single or
+                       multiple 'acpi_osi="string1"' to support specific OS
+                       vendor string(s).  Note that such command can only
+                       affect the default state of the OS vendor strings, thus
+                       it cannot affect the default state of the feature group
+                       strings and the current state of the OS vendor strings,
+                       specifying it multiple times through kernel command line
+                       is meaningless.  This command is useful when one do not
+                       care about the state of the feature group strings which
+                       should be controlled by the OSPM.
+                       Examples:
+                         1. 'acpi_osi=! acpi_osi="Windows 2000"' is equivalent
+                            to 'acpi_osi="Windows 2000" acpi_osi=!', they all
+                            can make '_OSI("Windows 2000")' TRUE.
+                       'acpi_osi=' cannot be used in combination with other
+                       'acpi_osi=' command lines, the _OSI method will not
+                       exist in the ACPI namespace.  NOTE that such command can
+                       only affect the _OSI support state, thus specifying it
+                       multiple times through kernel command line is also
+                       meaningless.
+                       Examples:
+                         1. 'acpi_osi=' can make 'CondRefOf(_OSI, Local1)'
+                            FALSE.
+                       'acpi_osi=!*' can be used in combination with single or
+                       multiple 'acpi_osi="string1"' to support specific
+                       string(s).  Note that such command can affect the
+                       current state of both the OS vendor strings and the
+                       feature group strings, thus specifying it multiple times
+                       through kernel command line is meaningful.  But it may
+                       still not able to affect the final state of a string if
+                       there are quirks related to this string.  This command
+                       is useful when one want to control the state of the
+                       feature group strings to debug BIOS issues related to
+                       the OSPM features.
+                       Examples:
+                         1. 'acpi_osi="Module Device" acpi_osi=!*' can make
+                            '_OSI("Module Device")' FALSE.
+                         2. 'acpi_osi=!* acpi_osi="Module Device"' can make
+                            '_OSI("Module Device")' TRUE.
+                         3. 'acpi_osi=! acpi_osi=!* acpi_osi="Windows 2000"' is
+                            equivalent to
+                            'acpi_osi=!* acpi_osi=! acpi_osi="Windows 2000"'
+                            and
+                            'acpi_osi=!* acpi_osi="Windows 2000" acpi_osi=!',
+                            they all will make '_OSI("Windows 2000")' TRUE.
+       acpi_pm_good    [X86]
+                       Override the pmtimer bug detection: force the kernel
+                       to assume that this machine's pmtimer latches its value
+                       and always returns good values.
+       acpi_sci=       [HW,ACPI] ACPI System Control Interrupt trigger mode
+                       Format: { level | edge | high | low }
+       acpi_skip_timer_override [HW,ACPI]
+                       Recognize and ignore IRQ0/pin2 Interrupt Override.
+                       For broken nForce2 BIOS resulting in XT-PIC timer.
+       acpi_sleep=     [HW,ACPI] Sleep options
+                       Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig,
+                                 old_ordering, nonvs, sci_force_enable }
+                       See Documentation/power/video.txt for information on
+                       s3_bios and s3_mode.
+                       s3_beep is for debugging; it makes the PC's speaker beep
+                       as soon as the kernel's real-mode entry point is called.
+                       s4_nohwsig prevents ACPI hardware signature from being
+                       used during resume from hibernation.
+                       old_ordering causes the ACPI 1.0 ordering of the _PTS
+                       control method, with respect to putting devices into
+                       low power states, to be enforced (the ACPI 2.0 ordering
+                       of _PTS is used by default).
+                       nonvs prevents the kernel from saving/restoring the
+                       ACPI NVS memory during suspend/hibernation and resume.
+                       sci_force_enable causes the kernel to set SCI_EN directly
+                       on resume from S1/S3 (which is against the ACPI spec,
+                       but some broken systems don't work without it).
+       acpi_use_timer_override [HW,ACPI]
+                       Use timer override. For some broken Nvidia NF5 boards
+                       that require a timer override, but don't have HPET
+       add_efi_memmap  [EFI; X86] Include EFI memory map in
+                       kernel's map of available physical RAM.
+       agp=            [AGP]
+                       { off | try_unsupported }
+                       off: disable AGP support
+                       try_unsupported: try to drive unsupported chipsets
+                               (may crash computer or cause data corruption)
+       ALSA            [HW,ALSA]
+                       See Documentation/sound/alsa/alsa-parameters.txt
+       alignment=      [KNL,ARM]
+                       Allow the default userspace alignment fault handler
+                       behaviour to be specified.  Bit 0 enables warnings,
+                       bit 1 enables fixups, and bit 2 sends a segfault.
+       align_va_addr=  [X86-64]
+                       Align virtual addresses by clearing slice [14:12] when
+                       allocating a VMA at process creation time. This option
+                       gives you up to 3% performance improvement on AMD F15h
+                       machines (where it is enabled by default) for a
+                       CPU-intensive style benchmark, and it can vary highly in
+                       a microbenchmark depending on workload and compiler.
+                       32: only for 32-bit processes
+                       64: only for 64-bit processes
+                       on: enable for both 32- and 64-bit processes
+                       off: disable for both 32- and 64-bit processes
+       alloc_snapshot  [FTRACE]
+                       Allocate the ftrace snapshot buffer on boot up when the
+                       main buffer is allocated. This is handy if debugging
+                       and you need to use tracing_snapshot() on boot up, and
+                       do not want to use tracing_snapshot_alloc() as it needs
+                       to be done where GFP_KERNEL allocations are allowed.
+       amd_iommu=      [HW,X86-64]
+                       Pass parameters to the AMD IOMMU driver in the system.
+                       Possible values are:
+                       fullflush - enable flushing of IO/TLB entries when
+                                   they are unmapped. Otherwise they are
+                                   flushed before they will be reused, which
+                                   is a lot of faster
+                       off       - do not initialize any AMD IOMMU found in
+                                   the system
+                       force_isolation - Force device isolation for all
+                                         devices. The IOMMU driver is not
+                                         allowed anymore to lift isolation
+                                         requirements as needed. This option
+                                         does not override iommu=pt
+       amd_iommu_dump= [HW,X86-64]
+                       Enable AMD IOMMU driver option to dump the ACPI table
+                       for AMD IOMMU. With this option enabled, AMD IOMMU
+                       driver will print ACPI tables for AMD IOMMU during
+                       IOMMU initialization.
+       amd_iommu_intr= [HW,X86-64]
+                       Specifies one of the following AMD IOMMU interrupt
+                       remapping modes:
+                       legacy     - Use legacy interrupt remapping mode.
+                       vapic      - Use virtual APIC mode, which allows IOMMU
+                                    to inject interrupts directly into guest.
+                                    This mode requires kvm-amd.avic=1.
+                                    (Default when IOMMU HW support is present.)
+       amijoy.map=     [HW,JOY] Amiga joystick support
+                       Map of devices attached to JOY0DAT and JOY1DAT
+                       Format: <a>,<b>
+                       See also Documentation/input/joystick.txt
+       analog.map=     [HW,JOY] Analog joystick and gamepad support
+                       Specifies type or capabilities of an analog joystick
+                       connected to one of 16 gameports
+                       Format: <type1>,<type2>,..<type16>
+       apc=            [HW,SPARC]
+                       Power management functions (SPARCstation-4/5 + deriv.)
+                       Format: noidle
+                       Disable APC CPU standby support. SPARCstation-Fox does
+                       not play well with APC CPU idle - disable it if you have
+                       APC and your system crashes randomly.
+       apic=           [APIC,X86-32] Advanced Programmable Interrupt Controller
+                       Change the output verbosity whilst booting
+                       Format: { quiet (default) | verbose | debug }
+                       Change the amount of debugging information output
+                       when initialising the APIC and IO-APIC components.
+       apic_extnmi=    [APIC,X86] External NMI delivery setting
+                       Format: { bsp (default) | all | none }
+                       bsp:  External NMI is delivered only to CPU 0
+                       all:  External NMIs are broadcast to all CPUs as a
+                             backup of CPU 0
+                       none: External NMI is masked for all CPUs. This is
+                             useful so that a dump capture kernel won't be
+                             shot down by NMI
+       autoconf=       [IPV6]
+                       See Documentation/networking/ipv6.txt.
+       show_lapic=     [APIC,X86] Advanced Programmable Interrupt Controller
+                       Limit apic dumping. The parameter defines the maximal
+                       number of local apics being dumped. Also it is possible
+                       to set it to "all" by meaning -- no limit here.
+                       Format: { 1 (default) | 2 | ... | all }.
+                       The parameter valid if only apic=debug or
+                       apic=verbose is specified.
+                       Example: apic=debug show_lapic=all
+       apm=            [APM] Advanced Power Management
+                       See header of arch/x86/kernel/apm_32.c.
+       arcrimi=        [HW,NET] ARCnet - "RIM I" (entirely mem-mapped) cards
+                       Format: <io>,<irq>,<nodeID>
+       ataflop=        [HW,M68k]
+       atarimouse=     [HW,MOUSE] Atari Mouse
+       atkbd.extra=    [HW] Enable extra LEDs and keys on IBM RapidAccess,
+                       EzKey and similar keyboards
+       atkbd.reset=    [HW] Reset keyboard during initialization
+       atkbd.set=      [HW] Select keyboard code set
+                       Format: <int> (2 = AT (default), 3 = PS/2)
+       atkbd.scroll=   [HW] Enable scroll wheel on MS Office and similar
+                       keyboards
+       atkbd.softraw=  [HW] Choose between synthetic and real raw mode
+                       Format: <bool> (0 = real, 1 = synthetic (default))
+       atkbd.softrepeat= [HW]
+                       Use software keyboard repeat
+       audit=          [KNL] Enable the audit sub-system
+                       Format: { "0" | "1" } (0 = disabled, 1 = enabled)
+                       0 - kernel audit is disabled and can not be enabled
+                           until the next reboot
+                       unset - kernel audit is initialized but disabled and
+                           will be fully enabled by the userspace auditd.
+                       1 - kernel audit is initialized and partially enabled,
+                           storing at most audit_backlog_limit messages in
+                           RAM until it is fully enabled by the userspace
+                           auditd.
+                       Default: unset
+       audit_backlog_limit= [KNL] Set the audit queue size limit.
+                       Format: <int> (must be >=0)
+                       Default: 64
+       bau=            [X86_UV] Enable the BAU on SGI UV.  The default
+                       behavior is to disable the BAU (i.e. bau=0).
+                       Format: { "0" | "1" }
+                       0 - Disable the BAU.
+                       1 - Enable the BAU.
+                       unset - Disable the BAU.
+       baycom_epp=     [HW,AX25]
+                       Format: <io>,<mode>
+       baycom_par=     [HW,AX25] BayCom Parallel Port AX.25 Modem
+                       Format: <io>,<mode>
+                       See header of drivers/net/hamradio/baycom_par.c.
+       baycom_ser_fdx= [HW,AX25]
+                       BayCom Serial Port AX.25 Modem (Full Duplex Mode)
+                       Format: <io>,<irq>,<mode>[,<baud>]
+                       See header of drivers/net/hamradio/baycom_ser_fdx.c.
+       baycom_ser_hdx= [HW,AX25]
+                       BayCom Serial Port AX.25 Modem (Half Duplex Mode)
+                       Format: <io>,<irq>,<mode>
+                       See header of drivers/net/hamradio/baycom_ser_hdx.c.
+       blkdevparts=    Manual partition parsing of block device(s) for
+                       embedded devices based on command line input.
+                       See Documentation/block/cmdline-partition.txt
+       boot_delay=     Milliseconds to delay each printk during boot.
+                       Values larger than 10 seconds (10000) are changed to
+                       no delay (0).
+                       Format: integer
+       bootmem_debug   [KNL] Enable bootmem allocator debug messages.
+       bert_disable    [ACPI]
+                       Disable BERT OS support on buggy BIOSes.
+       bttv.card=      [HW,V4L] bttv (bt848 + bt878 based grabber cards)
+       bttv.radio=     Most important insmod options are available as
+                       kernel args too.
+       bttv.pll=       See Documentation/video4linux/bttv/Insmod-options
+       bttv.tuner=
+       bulk_remove=off [PPC]  This parameter disables the use of the pSeries
+                       firmware feature for flushing multiple hpte entries
+                       at a time.
+       c101=           [NET] Moxa C101 synchronous serial card
+       cachesize=      [BUGS=X86-32] Override level 2 CPU cache size detection.
+                       Sometimes CPU hardware bugs make them report the cache
+                       size incorrectly. The kernel will attempt work arounds
+                       to fix known problems, but for some CPUs it is not
+                       possible to determine what the correct size should be.
+                       This option provides an override for these situations.
+       ca_keys=        [KEYS] This parameter identifies a specific key(s) on
+                       the system trusted keyring to be used for certificate
+                       trust validation.
+                       format: { id:<keyid> | builtin }
+       cca=            [MIPS] Override the kernel pages' cache coherency
+                       algorithm.  Accepted values range from 0 to 7
+                       inclusive. See arch/mips/include/asm/pgtable-bits.h
+                       for platform specific values (SB1, Loongson3 and
+                       others).
+       ccw_timeout_log [S390]
+                       See Documentation/s390/CommonIO for details.
+       cgroup_disable= [KNL] Disable a particular controller
+                       Format: {name of the controller(s) to disable}
+                       The effects of cgroup_disable=foo are:
+                       - foo isn't auto-mounted if you mount all cgroups in
+                         a single hierarchy
+                       - foo isn't visible as an individually mountable
+                         subsystem
+                       {Currently only "memory" controller deal with this and
+                       cut the overhead, others just disable the usage. So
+                       only cgroup_disable=memory is actually worthy}
+       cgroup_no_v1=   [KNL] Disable one, multiple, all cgroup controllers in v1
+                       Format: { controller[,controller...] | "all" }
+                       Like cgroup_disable, but only applies to cgroup v1;
+                       the blacklisted controllers remain available in cgroup2.
+       cgroup.memory=  [KNL] Pass options to the cgroup memory controller.
+                       Format: <string>
+                       nosocket -- Disable socket memory accounting.
+                       nokmem -- Disable kernel memory accounting.
+       checkreqprot    [SELINUX] Set initial checkreqprot flag value.
+                       Format: { "0" | "1" }
+                       See security/selinux/Kconfig help text.
+                       0 -- check protection applied by kernel (includes
+                               any implied execute protection).
+                       1 -- check protection requested by application.
+                       Default value is set via a kernel config option.
+                       Value can be changed at runtime via
+                               /selinux/checkreqprot.
+       cio_ignore=     [S390]
+                       See Documentation/s390/CommonIO for details.
+       clk_ignore_unused
+                       [CLK]
+                       Prevents the clock framework from automatically gating
+                       clocks that have not been explicitly enabled by a Linux
+                       device driver but are enabled in hardware at reset or
+                       by the bootloader/firmware. Note that this does not
+                       force such clocks to be always-on nor does it reserve
+                       those clocks in any way. This parameter is useful for
+                       debug and development, but should not be needed on a
+                       platform with proper driver support.  For more
+                       information, see Documentation/clk.txt.
+       clock=          [BUGS=X86-32, HW] gettimeofday clocksource override.
+                       [Deprecated]
+                       Forces specified clocksource (if available) to be used
+                       when calculating gettimeofday(). If specified
+                       clocksource is not available, it defaults to PIT.
+                       Format: { pit | tsc | cyclone | pmtmr }
+       clocksource=    Override the default clocksource
+                       Format: <string>
+                       Override the default clocksource and use the clocksource
+                       with the name specified.
+                       Some clocksource names to choose from, depending on
+                       the platform:
+                       [all] jiffies (this is the base, fallback clocksource)
+                       [ACPI] acpi_pm
+                       [ARM] imx_timer1,OSTS,netx_timer,mpu_timer2,
+                               pxa_timer,timer3,32k_counter,timer0_1
+                       [AVR32] avr32
+                       [X86-32] pit,hpet,tsc;
+                               scx200_hrt on Geode; cyclone on IBM x440
+                       [MIPS] MIPS
+                       [PARISC] cr16
+                       [S390] tod
+                       [SH] SuperH
+                       [SPARC64] tick
+                       [X86-64] hpet,tsc
+       clocksource.arm_arch_timer.evtstrm=
+                       [ARM,ARM64]
+                       Format: <bool>
+                       Enable/disable the eventstream feature of the ARM
+                       architected timer so that code using WFE-based polling
+                       loops can be debugged more effectively on production
+                       systems.
+       clocksource.arm_arch_timer.fsl-a008585=
+                       [ARM64]
+                       Format: <bool>
+                       Enable/disable the workaround of Freescale/NXP
+                       erratum A-008585.  This can be useful for KVM
+                       guests, if the guest device tree doesn't show the
+                       erratum.  If unspecified, the workaround is
+                       enabled based on the device tree.
+       clearcpuid=BITNUM [X86]
+                       Disable CPUID feature X for the kernel. See
+                       arch/x86/include/asm/cpufeatures.h for the valid bit
+                       numbers. Note the Linux specific bits are not necessarily
+                       stable over kernel options, but the vendor specific
+                       ones should be.
+                       Also note that user programs calling CPUID directly
+                       or using the feature without checking anything
+                       will still see it. This just prevents it from
+                       being used by the kernel or shown in /proc/cpuinfo.
+                       Also note the kernel might malfunction if you disable
+                       some critical bits.
+       cma=nn[MG]@[start[MG][-end[MG]]]
+                       [ARM,X86,KNL]
+                       Sets the size of kernel global memory area for
+                       contiguous memory allocations and optionally the
+                       placement constraint by the physical address range of
+                       memory allocations. A value of 0 disables CMA
+                       altogether. For more information, see
+                       include/linux/dma-contiguous.h
+       cmo_free_hint=  [PPC] Format: { yes | no }
+                       Specify whether pages are marked as being inactive
+                       when they are freed.  This is used in CMO environments
+                       to determine OS memory pressure for page stealing by
+                       a hypervisor.
+                       Default: yes
+       coherent_pool=nn[KMG]   [ARM,KNL]
+                       Sets the size of memory pool for coherent, atomic dma
+                       allocations, by default set to 256K.
+       code_bytes      [X86] How many bytes of object code to print
+                       in an oops report.
+                       Range: 0 - 8192
+                       Default: 64
+       com20020=       [HW,NET] ARCnet - COM20020 chipset
+                       Format:
+                       <io>[,<irq>[,<nodeID>[,<backplane>[,<ckp>[,<timeout>]]]]]
+       com90io=        [HW,NET] ARCnet - COM90xx chipset (IO-mapped buffers)
+                       Format: <io>[,<irq>]
+       com90xx=        [HW,NET]
+                       ARCnet - COM90xx chipset (memory-mapped buffers)
+                       Format: <io>[,<irq>[,<memstart>]]
+       condev=         [HW,S390] console device
+       conmode=
+       console=        [KNL] Output console device and options.
+               tty<n>  Use the virtual console device <n>.
+               ttyS<n>[,options]
+               ttyUSB0[,options]
+                       Use the specified serial port.  The options are of
+                       the form "bbbbpnf", where "bbbb" is the baud rate,
+                       "p" is parity ("n", "o", or "e"), "n" is number of
+                       bits, and "f" is flow control ("r" for RTS or
+                       omit it).  Default is "9600n8".
+                       See Documentation/admin-guide/serial-console.rst for more
+                       information.  See
+                       Documentation/networking/netconsole.txt for an
+                       alternative.
+               uart[8250],io,<addr>[,options]
+               uart[8250],mmio,<addr>[,options]
+               uart[8250],mmio16,<addr>[,options]
+               uart[8250],mmio32,<addr>[,options]
+               uart[8250],0x<addr>[,options]
+                       Start an early, polled-mode console on the 8250/16550
+                       UART at the specified I/O port or MMIO address,
+                       switching to the matching ttyS device later.
+                       MMIO inter-register address stride is either 8-bit
+                       (mmio), 16-bit (mmio16), or 32-bit (mmio32).
+                       If none of [io|mmio|mmio16|mmio32], <addr> is assumed
+                       to be equivalent to 'mmio'. 'options' are specified in
+                       the same format described for ttyS above; if unspecified,
+                       the h/w is not re-initialized.
+               hvc<n>  Use the hypervisor console device <n>. This is for
+                       both Xen and PowerPC hypervisors.
+                 If the device connected to the port is not a TTY but a braille
+                 device, prepend "brl," before the device type, for instance
+                       console=brl,ttyS0
+               For now, only VisioBraille is supported.
+       consoleblank=   [KNL] The console blank (screen saver) timeout in
+                       seconds. Defaults to 10*60 = 10mins. A value of 0
+                       disables the blank timer.
+       coredump_filter=
+                       [KNL] Change the default value for
+                       /proc/<pid>/coredump_filter.
+                       See also Documentation/filesystems/proc.txt.
+       cpuidle.off=1   [CPU_IDLE]
+                       disable the cpuidle sub-system
+       cpu_init_udelay=N
+                       [X86] Delay for N microsec between assert and de-assert
+                       of APIC INIT to start processors.  This delay occurs
+                       on every CPU online, such as boot, and resume from suspend.
+                       Default: 10000
+       cpcihp_generic= [HW,PCI] Generic port I/O CompactPCI driver
+                       Format:
+                       <first_slot>,<last_slot>,<port>,<enum_bit>[,<debug>]
+       crashkernel=size[KMG][@offset[KMG]]
+                       [KNL] Using kexec, Linux can switch to a 'crash kernel'
+                       upon panic. This parameter reserves the physical
+                       memory region [offset, offset + size] for that kernel
+                       image. If '@offset' is omitted, then a suitable offset
+                       is selected automatically. Check
+                       Documentation/kdump/kdump.txt for further details.
+       crashkernel=range1:size1[,range2:size2,...][@offset]
+                       [KNL] Same as above, but depends on the memory
+                       in the running system. The syntax of range is
+                       start-[end] where start and end are both
+                       a memory unit (amount[KMG]). See also
+                       Documentation/kdump/kdump.txt for an example.
+       crashkernel=size[KMG],high
+                       [KNL, x86_64] range could be above 4G. Allow kernel
+                       to allocate physical memory region from top, so could
+                       be above 4G if system have more than 4G ram installed.
+                       Otherwise memory region will be allocated below 4G, if
+                       available.
+                       It will be ignored if crashkernel=X is specified.
+       crashkernel=size[KMG],low
+                       [KNL, x86_64] range under 4G. When crashkernel=X,high
+                       is passed, kernel could allocate physical memory region
+                       above 4G, that cause second kernel crash on system
+                       that require some amount of low memory, e.g. swiotlb
+                       requires at least 64M+32K low memory, also enough extra
+                       low memory is needed to make sure DMA buffers for 32-bit
+                       devices won't run out. Kernel would try to allocate at
+                       at least 256M below 4G automatically.
+                       This one let user to specify own low range under 4G
+                       for second kernel instead.
+                       0: to disable low allocation.
+                       It will be ignored when crashkernel=X,high is not used
+                       or memory reserved is below 4G.
+       cryptomgr.notests
+                         [KNL] Disable crypto self-tests
+       cs89x0_dma=     [HW,NET]
+                       Format: <dma>
+       cs89x0_media=   [HW,NET]
+                       Format: { rj45 | aui | bnc }
+       dasd=           [HW,NET]
+                       See header of drivers/s390/block/dasd_devmap.c.
+       db9.dev[2|3]=   [HW,JOY] Multisystem joystick support via parallel port
+                       (one device per port)
+                       Format: <port#>,<type>
+                       See also Documentation/input/joystick-parport.txt
+       ddebug_query=   [KNL,DYNAMIC_DEBUG] Enable debug messages at early boot
+                       time. See Documentation/dynamic-debug-howto.txt for
+                       details.  Deprecated, see dyndbg.
+       debug           [KNL] Enable kernel debugging (events log level).
+       debug_locks_verbose=
+                       [KNL] verbose self-tests
+                       Format=<0|1>
+                       Print debugging info while doing the locking API
+                       self-tests.
+                       We default to 0 (no extra messages), setting it to
+                       1 will print _a lot_ more information - normally
+                       only useful to kernel developers.
+       debug_objects   [KNL] Enable object debugging
+       no_debug_objects
+                       [KNL] Disable object debugging
+       debug_guardpage_minorder=
+                       [KNL] When CONFIG_DEBUG_PAGEALLOC is set, this
+                       parameter allows control of the order of pages that will
+                       be intentionally kept free (and hence protected) by the
+                       buddy allocator. Bigger value increase the probability
+                       of catching random memory corruption, but reduce the
+                       amount of memory for normal system use. The maximum
+                       possible value is MAX_ORDER/2.  Setting this parameter
+                       to 1 or 2 should be enough to identify most random
+                       memory corruption problems caused by bugs in kernel or
+                       driver code when a CPU writes to (or reads from) a
+                       random memory location. Note that there exists a class
+                       of memory corruptions problems caused by buggy H/W or
+                       F/W or by drivers badly programing DMA (basically when
+                       memory is written at bus level and the CPU MMU is
+                       bypassed) which are not detectable by
+                       CONFIG_DEBUG_PAGEALLOC, hence this option will not help
+                       tracking down these problems.
+       debug_pagealloc=
+                       [KNL] When CONFIG_DEBUG_PAGEALLOC is set, this
+                       parameter enables the feature at boot time. In
+                       default, it is disabled. We can avoid allocating huge
+                       chunk of memory for debug pagealloc if we don't enable
+                       it at boot time and the system will work mostly same
+                       with the kernel built without CONFIG_DEBUG_PAGEALLOC.
+                       on: enable the feature
+       debugpat        [X86] Enable PAT debugging
+       decnet.addr=    [HW,NET]
+                       Format: <area>[,<node>]
+                       See also Documentation/networking/decnet.txt.
+       default_hugepagesz=
+                       [same as hugepagesz=] The size of the default
+                       HugeTLB page size. This is the size represented by
+                       the legacy /proc/ hugepages APIs, used for SHM, and
+                       default size when mounting hugetlbfs filesystems.
+                       Defaults to the default architecture's huge page size
+                       if not specified.
+       dhash_entries=  [KNL]
+                       Set number of hash buckets for dentry cache.
+       disable_1tb_segments [PPC]
+                       Disables the use of 1TB hash page table segments. This
+                       causes the kernel to fall back to 256MB segments which
+                       can be useful when debugging issues that require an SLB
+                       miss to occur.
+       disable=        [IPV6]
+                       See Documentation/networking/ipv6.txt.
+       disable_radix   [PPC]
+                       Disable RADIX MMU mode on POWER9
+       disable_cpu_apicid= [X86,APIC,SMP]
+                       Format: <int>
+                       The number of initial APIC ID for the
+                       corresponding CPU to be disabled at boot,
+                       mostly used for the kdump 2nd kernel to
+                       disable BSP to wake up multiple CPUs without
+                       causing system reset or hang due to sending
+                       INIT from AP to BSP.
+       disable_ddw     [PPC/PSERIES]
+                       Disable Dynamic DMA Window support. Use this if
+                       to workaround buggy firmware.
+       disable_ipv6=   [IPV6]
+                       See Documentation/networking/ipv6.txt.
+       disable_mtrr_cleanup [X86]
+                       The kernel tries to adjust MTRR layout from continuous
+                       to discrete, to make X server driver able to add WB
+                       entry later. This parameter disables that.
+       disable_mtrr_trim [X86, Intel and AMD only]
+                       By default the kernel will trim any uncacheable
+                       memory out of your available memory pool based on
+                       MTRR settings.  This parameter disables that behavior,
+                       possibly causing your machine to run very slowly.
+       disable_timer_pin_1 [X86]
+                       Disable PIN 1 of APIC timer
+                       Can be useful to work around chipset bugs.
+       dis_ucode_ldr   [X86] Disable the microcode loader.
+       dma_debug=off   If the kernel is compiled with DMA_API_DEBUG support,
+                       this option disables the debugging code at boot.
+       dma_debug_entries=<number>
+                       This option allows to tune the number of preallocated
+                       entries for DMA-API debugging code. One entry is
+                       required per DMA-API allocation. Use this if the
+                       DMA-API debugging code disables itself because the
+                       architectural default is too low.
+       dma_debug_driver=<driver_name>
+                       With this option the DMA-API debugging driver
+                       filter feature can be enabled at boot time. Just
+                       pass the driver to filter for as the parameter.
+                       The filter can be disabled or changed to another
+                       driver later using sysfs.
+       drm_kms_helper.edid_firmware=[<connector>:]<file>[,[<connector>:]<file>]
+                       Broken monitors, graphic adapters, KVMs and EDIDless
+                       panels may send no or incorrect EDID data sets.
+                       This parameter allows to specify an EDID data sets
+                       in the /lib/firmware directory that are used instead.
+                       Generic built-in EDID data sets are used, if one of
+                       edid/1024x768.bin, edid/1280x1024.bin,
+                       edid/1680x1050.bin, or edid/1920x1080.bin is given
+                       and no file with the same name exists. Details and
+                       instructions how to build your own EDID data are
+                       available in Documentation/EDID/HOWTO.txt. An EDID
+                       data set will only be used for a particular connector,
+                       if its name and a colon are prepended to the EDID
+                       name. Each connector may use a unique EDID data
+                       set by separating the files with a comma.  An EDID
+                       data set with no connector name will be used for
+                       any connectors not explicitly specified.
+       dscc4.setup=    [NET]
++      dump_apple_properties   [X86]
++                      Dump name and content of EFI device properties on
++                      x86 Macs.  Useful for driver authors to determine
++                      what data is available or for reverse-engineering.
++
+       dyndbg[="val"]          [KNL,DYNAMIC_DEBUG]
+       module.dyndbg[="val"]
+                       Enable debug messages at boot time.  See
+                       Documentation/dynamic-debug-howto.txt for details.
+       nompx           [X86] Disables Intel Memory Protection Extensions.
+                       See Documentation/x86/intel_mpx.txt for more
+                       information about the feature.
+       nopku           [X86] Disable Memory Protection Keys CPU feature found
+                       in some Intel CPUs.
 -      kstack=N        [X86] Print N words from the kernel stack
 -                      in oops dumps.
 -
+       module.async_probe [KNL]
+                       Enable asynchronous probe on this module.
+       early_ioremap_debug [KNL]
+                       Enable debug messages in early_ioremap support. This
+                       is useful for tracking down temporary early mappings
+                       which are not unmapped.
+       earlycon=       [KNL] Output early console device and options.
+                       When used with no options, the early console is
+                       determined by the stdout-path property in device
+                       tree's chosen node.
+               cdns,<addr>[,options]
+                       Start an early, polled-mode console on a Cadence
+                       (xuartps) serial port at the specified address. Only
+                       supported option is baud rate. If baud rate is not
+                       specified, the serial port must already be setup and
+                       configured.
+               uart[8250],io,<addr>[,options]
+               uart[8250],mmio,<addr>[,options]
+               uart[8250],mmio32,<addr>[,options]
+               uart[8250],mmio32be,<addr>[,options]
+               uart[8250],0x<addr>[,options]
+                       Start an early, polled-mode console on the 8250/16550
+                       UART at the specified I/O port or MMIO address.
+                       MMIO inter-register address stride is either 8-bit
+                       (mmio) or 32-bit (mmio32 or mmio32be).
+                       If none of [io|mmio|mmio32|mmio32be], <addr> is assumed
+                       to be equivalent to 'mmio'. 'options' are specified
+                       in the same format described for "console=ttyS<n>"; if
+                       unspecified, the h/w is not initialized.
+               pl011,<addr>
+               pl011,mmio32,<addr>
+                       Start an early, polled-mode console on a pl011 serial
+                       port at the specified address. The pl011 serial port
+                       must already be setup and configured. Options are not
+                       yet supported.  If 'mmio32' is specified, then only
+                       the driver will use only 32-bit accessors to read/write
+                       the device registers.
+               meson,<addr>
+                       Start an early, polled-mode console on a meson serial
+                       port at the specified address. The serial port must
+                       already be setup and configured. Options are not yet
+                       supported.
+               msm_serial,<addr>
+                       Start an early, polled-mode console on an msm serial
+                       port at the specified address. The serial port
+                       must already be setup and configured. Options are not
+                       yet supported.
+               msm_serial_dm,<addr>
+                       Start an early, polled-mode console on an msm serial
+                       dm port at the specified address. The serial port
+                       must already be setup and configured. Options are not
+                       yet supported.
+               smh     Use ARM semihosting calls for early console.
+               s3c2410,<addr>
+               s3c2412,<addr>
+               s3c2440,<addr>
+               s3c6400,<addr>
+               s5pv210,<addr>
+               exynos4210,<addr>
+                       Use early console provided by serial driver available
+                       on Samsung SoCs, requires selecting proper type and
+                       a correct base address of the selected UART port. The
+                       serial port must already be setup and configured.
+                       Options are not yet supported.
+               lpuart,<addr>
+               lpuart32,<addr>
+                       Use early console provided by Freescale LP UART driver
+                       found on Freescale Vybrid and QorIQ LS1021A processors.
+                       A valid base address must be provided, and the serial
+                       port must already be setup and configured.
+               armada3700_uart,<addr>
+                       Start an early, polled-mode console on the
+                       Armada 3700 serial port at the specified
+                       address. The serial port must already be setup
+                       and configured. Options are not yet supported.
+       earlyprintk=    [X86,SH,BLACKFIN,ARM,M68k]
+                       earlyprintk=vga
+                       earlyprintk=efi
+                       earlyprintk=xen
+                       earlyprintk=serial[,ttySn[,baudrate]]
+                       earlyprintk=serial[,0x...[,baudrate]]
+                       earlyprintk=ttySn[,baudrate]
+                       earlyprintk=dbgp[debugController#]
+                       earlyprintk=pciserial,bus:device.function[,baudrate]
+                       earlyprintk is useful when the kernel crashes before
+                       the normal console is initialized. It is not enabled by
+                       default because it has some cosmetic problems.
+                       Append ",keep" to not disable it when the real console
+                       takes over.
+                       Only one of vga, efi, serial, or usb debug port can
+                       be used at a time.
+                       Currently only ttyS0 and ttyS1 may be specified by
+                       name.  Other I/O ports may be explicitly specified
+                       on some architectures (x86 and arm at least) by
+                       replacing ttySn with an I/O port address, like this:
+                               earlyprintk=serial,0x1008,115200
+                       You can find the port for a given device in
+                       /proc/tty/driver/serial:
+                               2: uart:ST16650V2 port:00001008 irq:18 ...
+                       Interaction with the standard serial driver is not
+                       very good.
+                       The VGA and EFI output is eventually overwritten by
+                       the real console.
+                       The xen output can only be used by Xen PV guests.
+       edac_report=    [HW,EDAC] Control how to report EDAC event
+                       Format: {"on" | "off" | "force"}
+                       on: enable EDAC to report H/W event. May be overridden
+                       by other higher priority error reporting module.
+                       off: disable H/W event reporting through EDAC.
+                       force: enforce the use of EDAC to report H/W event.
+                       default: on.
+       ekgdboc=        [X86,KGDB] Allow early kernel console debugging
+                       ekgdboc=kbd
+                       This is designed to be used in conjunction with
+                       the boot argument: earlyprintk=vga
+       edd=            [EDD]
+                       Format: {"off" | "on" | "skip[mbr]"}
+       efi=            [EFI]
+                       Format: { "old_map", "nochunk", "noruntime", "debug" }
+                       old_map [X86-64]: switch to the old ioremap-based EFI
+                       runtime services mapping. 32-bit still uses this one by
+                       default.
+                       nochunk: disable reading files in "chunks" in the EFI
+                       boot stub, as chunking can cause problems with some
+                       firmware implementations.
+                       noruntime : disable EFI runtime services support
+                       debug: enable misc debug output
+       efi_no_storage_paranoia [EFI; X86]
+                       Using this parameter you can use more than 50% of
+                       your efi variable storage. Use this parameter only if
+                       you are really sure that your UEFI does sane gc and
+                       fulfills the spec otherwise your board may brick.
+       efi_fake_mem=   nn[KMG]@ss[KMG]:aa[,nn[KMG]@ss[KMG]:aa,..] [EFI; X86]
+                       Add arbitrary attribute to specific memory range by
+                       updating original EFI memory map.
+                       Region of memory which aa attribute is added to is
+                       from ss to ss+nn.
+                       If efi_fake_mem=2G@4G:0x10000,2G@0x10a0000000:0x10000
+                       is specified, EFI_MEMORY_MORE_RELIABLE(0x10000)
+                       attribute is added to range 0x100000000-0x180000000 and
+                       0x10a0000000-0x1120000000.
+                       Using this parameter you can do debugging of EFI memmap
+                       related feature. For example, you can do debugging of
+                       Address Range Mirroring feature even if your box
+                       doesn't support it.
+       efivar_ssdt=    [EFI; X86] Name of an EFI variable that contains an SSDT
+                       that is to be dynamically loaded by Linux. If there are
+                       multiple variables with the same name but with different
+                       vendor GUIDs, all of them will be loaded. See
+                       Documentation/acpi/ssdt-overlays.txt for details.
+       eisa_irq_edge=  [PARISC,HW]
+                       See header of drivers/parisc/eisa.c.
+       elanfreq=       [X86-32]
+                       See comment before function elanfreq_setup() in
+                       arch/x86/kernel/cpu/cpufreq/elanfreq.c.
+       elevator=       [IOSCHED]
+                       Format: {"cfq" | "deadline" | "noop"}
+                       See Documentation/block/cfq-iosched.txt and
+                       Documentation/block/deadline-iosched.txt for details.
+       elfcorehdr=[size[KMG]@]offset[KMG] [IA64,PPC,SH,X86,S390]
+                       Specifies physical address of start of kernel core
+                       image elf header and optionally the size. Generally
+                       kexec loader will pass this option to capture kernel.
+                       See Documentation/kdump/kdump.txt for details.
+       enable_mtrr_cleanup [X86]
+                       The kernel tries to adjust MTRR layout from continuous
+                       to discrete, to make X server driver able to add WB
+                       entry later. This parameter enables that.
+       enable_timer_pin_1 [X86]
+                       Enable PIN 1 of APIC timer
+                       Can be useful to work around chipset bugs
+                       (in particular on some ATI chipsets).
+                       The kernel tries to set a reasonable default.
+       enforcing       [SELINUX] Set initial enforcing status.
+                       Format: {"0" | "1"}
+                       See security/selinux/Kconfig help text.
+                       0 -- permissive (log only, no denials).
+                       1 -- enforcing (deny and log).
+                       Default value is 0.
+                       Value can be changed at runtime via /selinux/enforce.
+       erst_disable    [ACPI]
+                       Disable Error Record Serialization Table (ERST)
+                       support.
+       ether=          [HW,NET] Ethernet cards parameters
+                       This option is obsoleted by the "netdev=" option, which
+                       has equivalent usage. See its documentation for details.
+       evm=            [EVM]
+                       Format: { "fix" }
+                       Permit 'security.evm' to be updated regardless of
+                       current integrity status.
+       failslab=
+       fail_page_alloc=
+       fail_make_request=[KNL]
+                       General fault injection mechanism.
+                       Format: <interval>,<probability>,<space>,<times>
+                       See also Documentation/fault-injection/.
+       floppy=         [HW]
+                       See Documentation/blockdev/floppy.txt.
+       force_pal_cache_flush
+                       [IA-64] Avoid check_sal_cache_flush which may hang on
+                       buggy SAL_CACHE_FLUSH implementations. Using this
+                       parameter will force ia64_sal_cache_flush to call
+                       ia64_pal_cache_flush instead of SAL_CACHE_FLUSH.
+       forcepae [X86-32]
+                       Forcefully enable Physical Address Extension (PAE).
+                       Many Pentium M systems disable PAE but may have a
+                       functionally usable PAE implementation.
+                       Warning: use of this parameter will taint the kernel
+                       and may cause unknown problems.
+       ftrace=[tracer]
+                       [FTRACE] will set and start the specified tracer
+                       as early as possible in order to facilitate early
+                       boot debugging.
+       ftrace_dump_on_oops[=orig_cpu]
+                       [FTRACE] will dump the trace buffers on oops.
+                       If no parameter is passed, ftrace will dump
+                       buffers of all CPUs, but if you pass orig_cpu, it will
+                       dump only the buffer of the CPU that triggered the
+                       oops.
+       ftrace_filter=[function-list]
+                       [FTRACE] Limit the functions traced by the function
+                       tracer at boot up. function-list is a comma separated
+                       list of functions. This list can be changed at run
+                       time by the set_ftrace_filter file in the debugfs
+                       tracing directory.
+       ftrace_notrace=[function-list]
+                       [FTRACE] Do not trace the functions specified in
+                       function-list. This list can be changed at run time
+                       by the set_ftrace_notrace file in the debugfs
+                       tracing directory.
+       ftrace_graph_filter=[function-list]
+                       [FTRACE] Limit the top level callers functions traced
+                       by the function graph tracer at boot up.
+                       function-list is a comma separated list of functions
+                       that can be changed at run time by the
+                       set_graph_function file in the debugfs tracing directory.
+       ftrace_graph_notrace=[function-list]
+                       [FTRACE] Do not trace from the functions specified in
+                       function-list.  This list is a comma separated list of
+                       functions that can be changed at run time by the
+                       set_graph_notrace file in the debugfs tracing directory.
+       gamecon.map[2|3]=
+                       [HW,JOY] Multisystem joystick and NES/SNES/PSX pad
+                       support via parallel port (up to 5 devices per port)
+                       Format: <port#>,<pad1>,<pad2>,<pad3>,<pad4>,<pad5>
+                       See also Documentation/input/joystick-parport.txt
+       gamma=          [HW,DRM]
+       gart_fix_e820=  [X86_64] disable the fix e820 for K8 GART
+                       Format: off | on
+                       default: on
+       gcov_persist=   [GCOV] When non-zero (default), profiling data for
+                       kernel modules is saved and remains accessible via
+                       debugfs, even when the module is unloaded/reloaded.
+                       When zero, profiling data is discarded and associated
+                       debugfs files are removed at module unload time.
+       gpt             [EFI] Forces disk with valid GPT signature but
+                       invalid Protective MBR to be treated as GPT. If the
+                       primary GPT is corrupted, it enables the backup/alternate
+                       GPT to be used instead.
+       grcan.enable0=  [HW] Configuration of physical interface 0. Determines
+                       the "Enable 0" bit of the configuration register.
+                       Format: 0 | 1
+                       Default: 0
+       grcan.enable1=  [HW] Configuration of physical interface 1. Determines
+                       the "Enable 0" bit of the configuration register.
+                       Format: 0 | 1
+                       Default: 0
+       grcan.select=   [HW] Select which physical interface to use.
+                       Format: 0 | 1
+                       Default: 0
+       grcan.txsize=   [HW] Sets the size of the tx buffer.
+                       Format: <unsigned int> such that (txsize & ~0x1fffc0) == 0.
+                       Default: 1024
+       grcan.rxsize=   [HW] Sets the size of the rx buffer.
+                       Format: <unsigned int> such that (rxsize & ~0x1fffc0) == 0.
+                       Default: 1024
+       gpio-mockup.gpio_mockup_ranges
+                       [HW] Sets the ranges of gpiochip of for this device.
+                       Format: <start1>,<end1>,<start2>,<end2>...
+       hardlockup_all_cpu_backtrace=
+                       [KNL] Should the hard-lockup detector generate
+                       backtraces on all cpus.
+                       Format: <integer>
+       hashdist=       [KNL,NUMA] Large hashes allocated during boot
+                       are distributed across NUMA nodes.  Defaults on
+                       for 64-bit NUMA, off otherwise.
+                       Format: 0 | 1 (for off | on)
+       hcl=            [IA-64] SGI's Hardware Graph compatibility layer
+       hd=             [EIDE] (E)IDE hard drive subsystem geometry
+                       Format: <cyl>,<head>,<sect>
+       hest_disable    [ACPI]
+                       Disable Hardware Error Source Table (HEST) support;
+                       corresponding firmware-first mode error processing
+                       logic will be disabled.
+       highmem=nn[KMG] [KNL,BOOT] forces the highmem zone to have an exact
+                       size of <nn>. This works even on boxes that have no
+                       highmem otherwise. This also works to reduce highmem
+                       size on bigger boxes.
+       highres=        [KNL] Enable/disable high resolution timer mode.
+                       Valid parameters: "on", "off"
+                       Default: "on"
+       hisax=          [HW,ISDN]
+                       See Documentation/isdn/README.HiSax.
+       hlt             [BUGS=ARM,SH]
+       hpet=           [X86-32,HPET] option to control HPET usage
+                       Format: { enable (default) | disable | force |
+                               verbose }
+                       disable: disable HPET and use PIT instead
+                       force: allow force enabled of undocumented chips (ICH4,
+                               VIA, nVidia)
+                       verbose: show contents of HPET registers during setup
+       hpet_mmap=      [X86, HPET_MMAP] Allow userspace to mmap HPET
+                       registers.  Default set by CONFIG_HPET_MMAP_DEFAULT.
+       hugepages=      [HW,X86-32,IA-64] HugeTLB pages to allocate at boot.
+       hugepagesz=     [HW,IA-64,PPC,X86-64] The size of the HugeTLB pages.
+                       On x86-64 and powerpc, this option can be specified
+                       multiple times interleaved with hugepages= to reserve
+                       huge pages of different sizes. Valid pages sizes on
+                       x86-64 are 2M (when the CPU supports "pse") and 1G
+                       (when the CPU supports the "pdpe1gb" cpuinfo flag).
+       hvc_iucv=       [S390] Number of z/VM IUCV hypervisor console (HVC)
+                              terminal devices. Valid values: 0..8
+       hvc_iucv_allow= [S390] Comma-separated list of z/VM user IDs.
+                              If specified, z/VM IUCV HVC accepts connections
+                              from listed z/VM user IDs only.
+       hwthread_map=   [METAG] Comma-separated list of Linux cpu id to
+                               hardware thread id mappings.
+                               Format: <cpu>:<hwthread>
+       keep_bootcon    [KNL]
+                       Do not unregister boot console at start. This is only
+                       useful for debugging when something happens in the window
+                       between unregistering the boot console and initializing
+                       the real console.
+       i2c_bus=        [HW] Override the default board specific I2C bus speed
+                            or register an additional I2C bus that is not
+                            registered from board initialization code.
+                            Format:
+                            <bus_id>,<clkrate>
+       i8042.debug     [HW] Toggle i8042 debug mode
+       i8042.unmask_kbd_data
+                       [HW] Enable printing of interrupt data from the KBD port
+                            (disabled by default, and as a pre-condition
+                            requires that i8042.debug=1 be enabled)
+       i8042.direct    [HW] Put keyboard port into non-translated mode
+       i8042.dumbkbd   [HW] Pretend that controller can only read data from
+                            keyboard and cannot control its state
+                            (Don't attempt to blink the leds)
+       i8042.noaux     [HW] Don't check for auxiliary (== mouse) port
+       i8042.nokbd     [HW] Don't check/create keyboard port
+       i8042.noloop    [HW] Disable the AUX Loopback command while probing
+                            for the AUX port
+       i8042.nomux     [HW] Don't check presence of an active multiplexing
+                            controller
+       i8042.nopnp     [HW] Don't use ACPIPnP / PnPBIOS to discover KBD/AUX
+                            controllers
+       i8042.notimeout [HW] Ignore timeout condition signalled by controller
+       i8042.reset     [HW] Reset the controller during init, cleanup and
+                            suspend-to-ram transitions, only during s2r
+                            transitions, or never reset
+                       Format: { 1 | Y | y | 0 | N | n }
+                       1, Y, y: always reset controller
+                       0, N, n: don't ever reset controller
+                       Default: only on s2r transitions on x86; most other
+                       architectures force reset to be always executed
+       i8042.unlock    [HW] Unlock (ignore) the keylock
+       i8042.kbdreset  [HW] Reset device connected to KBD port
+       i810=           [HW,DRM]
+       i8k.ignore_dmi  [HW] Continue probing hardware even if DMI data
+                       indicates that the driver is running on unsupported
+                       hardware.
+       i8k.force       [HW] Activate i8k driver even if SMM BIOS signature
+                       does not match list of supported models.
+       i8k.power_status
+                       [HW] Report power status in /proc/i8k
+                       (disabled by default)
+       i8k.restricted  [HW] Allow controlling fans only if SYS_ADMIN
+                       capability is set.
+       i915.invert_brightness=
+                       [DRM] Invert the sense of the variable that is used to
+                       set the brightness of the panel backlight. Normally a
+                       brightness value of 0 indicates backlight switched off,
+                       and the maximum of the brightness value sets the backlight
+                       to maximum brightness. If this parameter is set to 0
+                       (default) and the machine requires it, or this parameter
+                       is set to 1, a brightness value of 0 sets the backlight
+                       to maximum brightness, and the maximum of the brightness
+                       value switches the backlight off.
+                       -1 -- never invert brightness
+                        0 -- machine default
+                        1 -- force brightness inversion
+       icn=            [HW,ISDN]
+                       Format: <io>[,<membase>[,<icn_id>[,<icn_id2>]]]
+       ide-core.nodma= [HW] (E)IDE subsystem
+                       Format: =0.0 to prevent dma on hda, =0.1 hdb =1.0 hdc
+                       .vlb_clock .pci_clock .noflush .nohpa .noprobe .nowerr
+                       .cdrom .chs .ignore_cable are additional options
+                       See Documentation/ide/ide.txt.
+       ide-generic.probe-mask= [HW] (E)IDE subsystem
+                       Format: <int>
+                       Probe mask for legacy ISA IDE ports.  Depending on
+                       platform up to 6 ports are supported, enabled by
+                       setting corresponding bits in the mask to 1.  The
+                       default value is 0x0, which has a special meaning.
+                       On systems that have PCI, it triggers scanning the
+                       PCI bus for the first and the second port, which
+                       are then probed.  On systems without PCI the value
+                       of 0x0 enables probing the two first ports as if it
+                       was 0x3.
+       ide-pci-generic.all-generic-ide [HW] (E)IDE subsystem
+                       Claim all unknown PCI IDE storage controllers.
+       idle=           [X86]
+                       Format: idle=poll, idle=halt, idle=nomwait
+                       Poll forces a polling idle loop that can slightly
+                       improve the performance of waking up a idle CPU, but
+                       will use a lot of power and make the system run hot.
+                       Not recommended.
+                       idle=halt: Halt is forced to be used for CPU idle.
+                       In such case C2/C3 won't be used again.
+                       idle=nomwait: Disable mwait for CPU C-states
+       ieee754=        [MIPS] Select IEEE Std 754 conformance mode
+                       Format: { strict | legacy | 2008 | relaxed }
+                       Default: strict
+                       Choose which programs will be accepted for execution
+                       based on the IEEE 754 NaN encoding(s) supported by
+                       the FPU and the NaN encoding requested with the value
+                       of an ELF file header flag individually set by each
+                       binary.  Hardware implementations are permitted to
+                       support either or both of the legacy and the 2008 NaN
+                       encoding mode.
+                       Available settings are as follows:
+                       strict  accept binaries that request a NaN encoding
+                               supported by the FPU
+                       legacy  only accept legacy-NaN binaries, if supported
+                               by the FPU
+                       2008    only accept 2008-NaN binaries, if supported
+                               by the FPU
+                       relaxed accept any binaries regardless of whether
+                               supported by the FPU
+                       The FPU emulator is always able to support both NaN
+                       encodings, so if no FPU hardware is present or it has
+                       been disabled with 'nofpu', then the settings of
+                       'legacy' and '2008' strap the emulator accordingly,
+                       'relaxed' straps the emulator for both legacy-NaN and
+                       2008-NaN, whereas 'strict' enables legacy-NaN only on
+                       legacy processors and both NaN encodings on MIPS32 or
+                       MIPS64 CPUs.
+                       The setting for ABS.fmt/NEG.fmt instruction execution
+                       mode generally follows that for the NaN encoding,
+                       except where unsupported by hardware.
+       ignore_loglevel [KNL]
+                       Ignore loglevel setting - this will print /all/
+                       kernel messages to the console. Useful for debugging.
+                       We also add it as printk module parameter, so users
+                       could change it dynamically, usually by
+                       /sys/module/printk/parameters/ignore_loglevel.
+       ignore_rlimit_data
+                       Ignore RLIMIT_DATA setting for data mappings,
+                       print warning at first misuse.  Can be changed via
+                       /sys/module/kernel/parameters/ignore_rlimit_data.
+       ihash_entries=  [KNL]
+                       Set number of hash buckets for inode cache.
+       ima_appraise=   [IMA] appraise integrity measurements
+                       Format: { "off" | "enforce" | "fix" | "log" }
+                       default: "enforce"
+       ima_appraise_tcb [IMA]
+                       The builtin appraise policy appraises all files
+                       owned by uid=0.
+       ima_hash=       [IMA]
+                       Format: { md5 | sha1 | rmd160 | sha256 | sha384
+                                  | sha512 | ... }
+                       default: "sha1"
+                       The list of supported hash algorithms is defined
+                       in crypto/hash_info.h.
+       ima_policy=     [IMA]
+                       The builtin measurement policy to load during IMA
+                       setup.  Specyfing "tcb" as the value, measures all
+                       programs exec'd, files mmap'd for exec, and all files
+                       opened with the read mode bit set by either the
+                       effective uid (euid=0) or uid=0.
+                       Format: "tcb"
+       ima_tcb         [IMA] Deprecated.  Use ima_policy= instead.
+                       Load a policy which meets the needs of the Trusted
+                       Computing Base.  This means IMA will measure all
+                       programs exec'd, files mmap'd for exec, and all files
+                       opened for read by uid=0.
+       ima_template=   [IMA]
+                       Select one of defined IMA measurements template formats.
+                       Formats: { "ima" | "ima-ng" | "ima-sig" }
+                       Default: "ima-ng"
+       ima_template_fmt=
+                       [IMA] Define a custom template format.
+                       Format: { "field1|...|fieldN" }
+       ima.ahash_minsize= [IMA] Minimum file size for asynchronous hash usage
+                       Format: <min_file_size>
+                       Set the minimal file size for using asynchronous hash.
+                       If left unspecified, ahash usage is disabled.
+                       ahash performance varies for different data sizes on
+                       different crypto accelerators. This option can be used
+                       to achieve the best performance for a particular HW.
+       ima.ahash_bufsize= [IMA] Asynchronous hash buffer size
+                       Format: <bufsize>
+                       Set hashing buffer size. Default: 4k.
+                       ahash performance varies for different chunk sizes on
+                       different crypto accelerators. This option can be used
+                       to achieve best performance for particular HW.
+       init=           [KNL]
+                       Format: <full_path>
+                       Run specified binary instead of /sbin/init as init
+                       process.
+       initcall_debug  [KNL] Trace initcalls as they are executed.  Useful
+                       for working out where the kernel is dying during
+                       startup.
+       initcall_blacklist=  [KNL] Do not execute a comma-separated list of
+                       initcall functions.  Useful for debugging built-in
+                       modules and initcalls.
+       initrd=         [BOOT] Specify the location of the initial ramdisk
+       init_pkru=      [x86] Specify the default memory protection keys rights
+                       register contents for all processes.  0x55555554 by
+                       default (disallow access to all but pkey 0).  Can
+                       override in debugfs after boot.
+       inport.irq=     [HW] Inport (ATI XL and Microsoft) busmouse driver
+                       Format: <irq>
+       int_pln_enable  [x86] Enable power limit notification interrupt
+       integrity_audit=[IMA]
+                       Format: { "0" | "1" }
+                       0 -- basic integrity auditing messages. (Default)
+                       1 -- additional integrity auditing messages.
+       intel_iommu=    [DMAR] Intel IOMMU driver (DMAR) option
+               on
+                       Enable intel iommu driver.
+               off
+                       Disable intel iommu driver.
+               igfx_off [Default Off]
+                       By default, gfx is mapped as normal device. If a gfx
+                       device has a dedicated DMAR unit, the DMAR unit is
+                       bypassed by not enabling DMAR with this option. In
+                       this case, gfx device will use physical address for
+                       DMA.
+               forcedac [x86_64]
+                       With this option iommu will not optimize to look
+                       for io virtual address below 32-bit forcing dual
+                       address cycle on pci bus for cards supporting greater
+                       than 32-bit addressing. The default is to look
+                       for translation below 32-bit and if not available
+                       then look in the higher range.
+               strict [Default Off]
+                       With this option on every unmap_single operation will
+                       result in a hardware IOTLB flush operation as opposed
+                       to batching them for performance.
+               sp_off [Default Off]
+                       By default, super page will be supported if Intel IOMMU
+                       has the capability. With this option, super page will
+                       not be supported.
+               ecs_off [Default Off]
+                       By default, extended context tables will be supported if
+                       the hardware advertises that it has support both for the
+                       extended tables themselves, and also PASID support. With
+                       this option set, extended tables will not be used even
+                       on hardware which claims to support them.
+       intel_idle.max_cstate=  [KNL,HW,ACPI,X86]
+                       0       disables intel_idle and fall back on acpi_idle.
+                       1 to 9  specify maximum depth of C-state.
+       intel_pstate=  [X86]
+                      disable
+                        Do not enable intel_pstate as the default
+                        scaling driver for the supported processors
+                      force
+                        Enable intel_pstate on systems that prohibit it by default
+                        in favor of acpi-cpufreq. Forcing the intel_pstate driver
+                        instead of acpi-cpufreq may disable platform features, such
+                        as thermal controls and power capping, that rely on ACPI
+                        P-States information being indicated to OSPM and therefore
+                        should be used with caution. This option does not work with
+                        processors that aren't supported by the intel_pstate driver
+                        or on platforms that use pcc-cpufreq instead of acpi-cpufreq.
+                      no_hwp
+                        Do not enable hardware P state control (HWP)
+                        if available.
+               hwp_only
+                       Only load intel_pstate on systems which support
+                       hardware P state control (HWP) if available.
+               support_acpi_ppc
+                       Enforce ACPI _PPC performance limits. If the Fixed ACPI
+                       Description Table, specifies preferred power management
+                       profile as "Enterprise Server" or "Performance Server",
+                       then this feature is turned on by default.
+       intremap=       [X86-64, Intel-IOMMU]
+                       on      enable Interrupt Remapping (default)
+                       off     disable Interrupt Remapping
+                       nosid   disable Source ID checking
+                       no_x2apic_optout
+                               BIOS x2APIC opt-out request will be ignored
+                       nopost  disable Interrupt Posting
+       iomem=          Disable strict checking of access to MMIO memory
+               strict  regions from userspace.
+               relaxed
+       iommu=          [x86]
+               off
+               force
+               noforce
+               biomerge
+               panic
+               nopanic
+               merge
+               nomerge
+               forcesac
+               soft
+               pt              [x86, IA-64]
+               nobypass        [PPC/POWERNV]
+                       Disable IOMMU bypass, using IOMMU for PCI devices.
+       io7=            [HW] IO7 for Marvel based alpha systems
+                       See comment before marvel_specify_io7 in
+                       arch/alpha/kernel/core_marvel.c.
+       io_delay=       [X86] I/O delay method
+               0x80
+                       Standard port 0x80 based delay
+               0xed
+                       Alternate port 0xed based delay (needed on some systems)
+               udelay
+                       Simple two microseconds delay
+               none
+                       No delay
+       ip=             [IP_PNP]
+                       See Documentation/filesystems/nfs/nfsroot.txt.
+       irqaffinity=    [SMP] Set the default irq affinity mask
+                       The argument is a cpu list, as described above.
+       irqfixup        [HW]
+                       When an interrupt is not handled search all handlers
+                       for it. Intended to get systems with badly broken
+                       firmware running.
+       irqpoll         [HW]
+                       When an interrupt is not handled search all handlers
+                       for it. Also check all handlers each timer
+                       interrupt. Intended to get systems with badly broken
+                       firmware running.
+       isapnp=         [ISAPNP]
+                       Format: <RDP>,<reset>,<pci_scan>,<verbosity>
+       isolcpus=       [KNL,SMP] Isolate CPUs from the general scheduler.
+                       The argument is a cpu list, as described above.
+                       This option can be used to specify one or more CPUs
+                       to isolate from the general SMP balancing and scheduling
+                       algorithms. You can move a process onto or off an
+                       "isolated" CPU via the CPU affinity syscalls or cpuset.
+                       <cpu number> begins at 0 and the maximum value is
+                       "number of CPUs in system - 1".
+                       This option is the preferred way to isolate CPUs. The
+                       alternative -- manually setting the CPU mask of all
+                       tasks in the system -- can cause problems and
+                       suboptimal load balancer performance.
+       iucv=           [HW,NET]
+       ivrs_ioapic     [HW,X86_64]
+                       Provide an override to the IOAPIC-ID<->DEVICE-ID
+                       mapping provided in the IVRS ACPI table. For
+                       example, to map IOAPIC-ID decimal 10 to
+                       PCI device 00:14.0 write the parameter as:
+                               ivrs_ioapic[10]=00:14.0
+       ivrs_hpet       [HW,X86_64]
+                       Provide an override to the HPET-ID<->DEVICE-ID
+                       mapping provided in the IVRS ACPI table. For
+                       example, to map HPET-ID decimal 0 to
+                       PCI device 00:14.0 write the parameter as:
+                               ivrs_hpet[0]=00:14.0
+       ivrs_acpihid    [HW,X86_64]
+                       Provide an override to the ACPI-HID:UID<->DEVICE-ID
+                       mapping provided in the IVRS ACPI table. For
+                       example, to map UART-HID:UID AMD0020:0 to
+                       PCI device 00:14.5 write the parameter as:
+                               ivrs_acpihid[00:14.5]=AMD0020:0
+       js=             [HW,JOY] Analog joystick
+                       See Documentation/input/joystick.txt.
+       nokaslr         [KNL]
+                       When CONFIG_RANDOMIZE_BASE is set, this disables
+                       kernel and module base offset ASLR (Address Space
+                       Layout Randomization).
+       keepinitrd      [HW,ARM]
+       kernelcore=     [KNL,X86,IA-64,PPC]
+                       Format: nn[KMGTPE] | "mirror"
+                       This parameter
+                       specifies the amount of memory usable by the kernel
+                       for non-movable allocations.  The requested amount is
+                       spread evenly throughout all nodes in the system. The
+                       remaining memory in each node is used for Movable
+                       pages. In the event, a node is too small to have both
+                       kernelcore and Movable pages, kernelcore pages will
+                       take priority and other nodes will have a larger number
+                       of Movable pages.  The Movable zone is used for the
+                       allocation of pages that may be reclaimed or moved
+                       by the page migration subsystem.  This means that
+                       HugeTLB pages may not be allocated from this zone.
+                       Note that allocations like PTEs-from-HighMem still
+                       use the HighMem zone if it exists, and the Normal
+                       zone if it does not.
+                       Instead of specifying the amount of memory (nn[KMGTPE]),
+                       you can specify "mirror" option. In case "mirror"
+                       option is specified, mirrored (reliable) memory is used
+                       for non-movable allocations and remaining memory is used
+                       for Movable pages. nn[KMGTPE] and "mirror" are exclusive,
+                       so you can NOT specify nn[KMGTPE] and "mirror" at the same
+                       time.
+       kgdbdbgp=       [KGDB,HW] kgdb over EHCI usb debug port.
+                       Format: <Controller#>[,poll interval]
+                       The controller # is the number of the ehci usb debug
+                       port as it is probed via PCI.  The poll interval is
+                       optional and is the number seconds in between
+                       each poll cycle to the debug port in case you need
+                       the functionality for interrupting the kernel with
+                       gdb or control-c on the dbgp connection.  When
+                       not using this parameter you use sysrq-g to break into
+                       the kernel debugger.
+       kgdboc=         [KGDB,HW] kgdb over consoles.
+                       Requires a tty driver that supports console polling,
+                       or a supported polling keyboard driver (non-usb).
+                        Serial only format: <serial_device>[,baud]
+                        keyboard only format: kbd
+                        keyboard and serial format: kbd,<serial_device>[,baud]
+                       Optional Kernel mode setting:
+                        kms, kbd format: kms,kbd
+                        kms, kbd and serial format: kms,kbd,<ser_dev>[,baud]
+       kgdbwait        [KGDB] Stop kernel execution and enter the
+                       kernel debugger at the earliest opportunity.
+       kmac=           [MIPS] korina ethernet MAC address.
+                       Configure the RouterBoard 532 series on-chip
+                       Ethernet adapter MAC address.
+       kmemleak=       [KNL] Boot-time kmemleak enable/disable
+                       Valid arguments: on, off
+                       Default: on
+                       Built with CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF=y,
+                       the default is off.
+       kmemcheck=      [X86] Boot-time kmemcheck enable/disable/one-shot mode
+                       Valid arguments: 0, 1, 2
+                       kmemcheck=0 (disabled)
+                       kmemcheck=1 (enabled)
+                       kmemcheck=2 (one-shot mode)
+                       Default: 2 (one-shot mode)
 -      movable_node    [KNL,X86] Boot-time switch to enable the effects
+       kvm.ignore_msrs=[KVM] Ignore guest accesses to unhandled MSRs.
+                       Default is 0 (don't ignore, but inject #GP)
+       kvm.mmu_audit=  [KVM] This is a R/W parameter which allows audit
+                       KVM MMU at runtime.
+                       Default is 0 (off)
+       kvm-amd.nested= [KVM,AMD] Allow nested virtualization in KVM/SVM.
+                       Default is 1 (enabled)
+       kvm-amd.npt=    [KVM,AMD] Disable nested paging (virtualized MMU)
+                       for all guests.
+                       Default is 1 (enabled) if in 64-bit or 32-bit PAE mode.
+       kvm-intel.ept=  [KVM,Intel] Disable extended page tables
+                       (virtualized MMU) support on capable Intel chips.
+                       Default is 1 (enabled)
+       kvm-intel.emulate_invalid_guest_state=
+                       [KVM,Intel] Enable emulation of invalid guest states
+                       Default is 0 (disabled)
+       kvm-intel.flexpriority=
+                       [KVM,Intel] Disable FlexPriority feature (TPR shadow).
+                       Default is 1 (enabled)
+       kvm-intel.nested=
+                       [KVM,Intel] Enable VMX nesting (nVMX).
+                       Default is 0 (disabled)
+       kvm-intel.unrestricted_guest=
+                       [KVM,Intel] Disable unrestricted guest feature
+                       (virtualized real and unpaged mode) on capable
+                       Intel chips. Default is 1 (enabled)
+       kvm-intel.vpid= [KVM,Intel] Disable Virtual Processor Identification
+                       feature (tagged TLBs) on capable Intel chips.
+                       Default is 1 (enabled)
+       l2cr=           [PPC]
+       l3cr=           [PPC]
+       lapic           [X86-32,APIC] Enable the local APIC even if BIOS
+                       disabled it.
+       lapic=          [x86,APIC] "notscdeadline" Do not use TSC deadline
+                       value for LAPIC timer one-shot implementation. Default
+                       back to the programmable timer unit in the LAPIC.
+       lapic_timer_c2_ok       [X86,APIC] trust the local apic timer
+                       in C2 power state.
+       libata.dma=     [LIBATA] DMA control
+                       libata.dma=0      Disable all PATA and SATA DMA
+                       libata.dma=1      PATA and SATA Disk DMA only
+                       libata.dma=2      ATAPI (CDROM) DMA only
+                       libata.dma=4      Compact Flash DMA only
+                       Combinations also work, so libata.dma=3 enables DMA
+                       for disks and CDROMs, but not CFs.
+       libata.ignore_hpa=      [LIBATA] Ignore HPA limit
+                       libata.ignore_hpa=0       keep BIOS limits (default)
+                       libata.ignore_hpa=1       ignore limits, using full disk
+       libata.noacpi   [LIBATA] Disables use of ACPI in libata suspend/resume
+                       when set.
+                       Format: <int>
+       libata.force=   [LIBATA] Force configurations.  The format is comma
+                       separated list of "[ID:]VAL" where ID is
+                       PORT[.DEVICE].  PORT and DEVICE are decimal numbers
+                       matching port, link or device.  Basically, it matches
+                       the ATA ID string printed on console by libata.  If
+                       the whole ID part is omitted, the last PORT and DEVICE
+                       values are used.  If ID hasn't been specified yet, the
+                       configuration applies to all ports, links and devices.
+                       If only DEVICE is omitted, the parameter applies to
+                       the port and all links and devices behind it.  DEVICE
+                       number of 0 either selects the first device or the
+                       first fan-out link behind PMP device.  It does not
+                       select the host link.  DEVICE number of 15 selects the
+                       host link and device attached to it.
+                       The VAL specifies the configuration to force.  As long
+                       as there's no ambiguity shortcut notation is allowed.
+                       For example, both 1.5 and 1.5G would work for 1.5Gbps.
+                       The following configurations can be forced.
+                       * Cable type: 40c, 80c, short40c, unk, ign or sata.
+                         Any ID with matching PORT is used.
+                       * SATA link speed limit: 1.5Gbps or 3.0Gbps.
+                       * Transfer mode: pio[0-7], mwdma[0-4] and udma[0-7].
+                         udma[/][16,25,33,44,66,100,133] notation is also
+                         allowed.
+                       * [no]ncq: Turn on or off NCQ.
+                       * [no]ncqtrim: Turn off queued DSM TRIM.
+                       * nohrst, nosrst, norst: suppress hard, soft
+                           and both resets.
+                       * rstonce: only attempt one reset during
+                         hot-unplug link recovery
+                       * dump_id: dump IDENTIFY data.
+                       * atapi_dmadir: Enable ATAPI DMADIR bridge support
+                       * disable: Disable this device.
+                       If there are multiple matching configurations changing
+                       the same attribute, the last one is used.
+       memblock=debug  [KNL] Enable memblock debug messages.
+       load_ramdisk=   [RAM] List of ramdisks to load from floppy
+                       See Documentation/blockdev/ramdisk.txt.
+       lockd.nlm_grace_period=P  [NFS] Assign grace period.
+                       Format: <integer>
+       lockd.nlm_tcpport=N     [NFS] Assign TCP port.
+                       Format: <integer>
+       lockd.nlm_timeout=T     [NFS] Assign timeout value.
+                       Format: <integer>
+       lockd.nlm_udpport=M     [NFS] Assign UDP port.
+                       Format: <integer>
+       locktorture.nreaders_stress= [KNL]
+                       Set the number of locking read-acquisition kthreads.
+                       Defaults to being automatically set based on the
+                       number of online CPUs.
+       locktorture.nwriters_stress= [KNL]
+                       Set the number of locking write-acquisition kthreads.
+       locktorture.onoff_holdoff= [KNL]
+                       Set time (s) after boot for CPU-hotplug testing.
+       locktorture.onoff_interval= [KNL]
+                       Set time (s) between CPU-hotplug operations, or
+                       zero to disable CPU-hotplug testing.
+       locktorture.shuffle_interval= [KNL]
+                       Set task-shuffle interval (jiffies).  Shuffling
+                       tasks allows some CPUs to go into dyntick-idle
+                       mode during the locktorture test.
+       locktorture.shutdown_secs= [KNL]
+                       Set time (s) after boot system shutdown.  This
+                       is useful for hands-off automated testing.
+       locktorture.stat_interval= [KNL]
+                       Time (s) between statistics printk()s.
+       locktorture.stutter= [KNL]
+                       Time (s) to stutter testing, for example,
+                       specifying five seconds causes the test to run for
+                       five seconds, wait for five seconds, and so on.
+                       This tests the locking primitive's ability to
+                       transition abruptly to and from idle.
+       locktorture.torture_runnable= [BOOT]
+                       Start locktorture running at boot time.
+       locktorture.torture_type= [KNL]
+                       Specify the locking implementation to test.
+       locktorture.verbose= [KNL]
+                       Enable additional printk() statements.
+       logibm.irq=     [HW,MOUSE] Logitech Bus Mouse Driver
+                       Format: <irq>
+       loglevel=       All Kernel Messages with a loglevel smaller than the
+                       console loglevel will be printed to the console. It can
+                       also be changed with klogd or other programs. The
+                       loglevels are defined as follows:
+                       0 (KERN_EMERG)          system is unusable
+                       1 (KERN_ALERT)          action must be taken immediately
+                       2 (KERN_CRIT)           critical conditions
+                       3 (KERN_ERR)            error conditions
+                       4 (KERN_WARNING)        warning conditions
+                       5 (KERN_NOTICE)         normal but significant condition
+                       6 (KERN_INFO)           informational
+                       7 (KERN_DEBUG)          debug-level messages
+       log_buf_len=n[KMG]      Sets the size of the printk ring buffer,
+                       in bytes.  n must be a power of two and greater
+                       than the minimal size. The minimal size is defined
+                       by LOG_BUF_SHIFT kernel config parameter. There is
+                       also CONFIG_LOG_CPU_MAX_BUF_SHIFT config parameter
+                       that allows to increase the default size depending on
+                       the number of CPUs. See init/Kconfig for more details.
+       logo.nologo     [FB] Disables display of the built-in Linux logo.
+                       This may be used to provide more screen space for
+                       kernel log messages and is useful when debugging
+                       kernel boot problems.
+       lp=0            [LP]    Specify parallel ports to use, e.g,
+       lp=port[,port...]       lp=none,parport0 (lp0 not configured, lp1 uses
+       lp=reset                first parallel port). 'lp=0' disables the
+       lp=auto                 printer driver. 'lp=reset' (which can be
+                               specified in addition to the ports) causes
+                               attached printers to be reset. Using
+                               lp=port1,port2,... specifies the parallel ports
+                               to associate lp devices with, starting with
+                               lp0. A port specification may be 'none' to skip
+                               that lp device, or a parport name such as
+                               'parport0'. Specifying 'lp=auto' instead of a
+                               port specification list means that device IDs
+                               from each port should be examined, to see if
+                               an IEEE 1284-compliant printer is attached; if
+                               so, the driver will manage that printer.
+                               See also header of drivers/char/lp.c.
+       lpj=n           [KNL]
+                       Sets loops_per_jiffy to given constant, thus avoiding
+                       time-consuming boot-time autodetection (up to 250 ms per
+                       CPU). 0 enables autodetection (default). To determine
+                       the correct value for your kernel, boot with normal
+                       autodetection and see what value is printed. Note that
+                       on SMP systems the preset will be applied to all CPUs,
+                       which is likely to cause problems if your CPUs need
+                       significantly divergent settings. An incorrect value
+                       will cause delays in the kernel to be wrong, leading to
+                       unpredictable I/O errors and other breakage. Although
+                       unlikely, in the extreme case this might damage your
+                       hardware.
+       ltpc=           [NET]
+                       Format: <io>,<irq>,<dma>
+       machvec=        [IA-64] Force the use of a particular machine-vector
+                       (machvec) in a generic kernel.
+                       Example: machvec=hpzx1_swiotlb
+       machtype=       [Loongson] Share the same kernel image file between different
+                        yeeloong laptop.
+                       Example: machtype=lemote-yeeloong-2f-7inch
+       max_addr=nn[KMG]        [KNL,BOOT,ia64] All physical memory greater
+                       than or equal to this physical address is ignored.
+       maxcpus=        [SMP] Maximum number of processors that an SMP kernel
+                       will bring up during bootup.  maxcpus=n : n >= 0 limits
+                       the kernel to bring up 'n' processors. Surely after
+                       bootup you can bring up the other plugged cpu by executing
+                       "echo 1 > /sys/devices/system/cpu/cpuX/online". So maxcpus
+                       only takes effect during system bootup.
+                       While n=0 is a special case, it is equivalent to "nosmp",
+                       which also disables the IO APIC.
+       max_loop=       [LOOP] The number of loop block devices that get
+       (loop.max_loop) unconditionally pre-created at init time. The default
+                       number is configured by BLK_DEV_LOOP_MIN_COUNT. Instead
+                       of statically allocating a predefined number, loop
+                       devices can be requested on-demand with the
+                       /dev/loop-control interface.
+       mce             [X86-32] Machine Check Exception
+       mce=option      [X86-64] See Documentation/x86/x86_64/boot-options.txt
+       md=             [HW] RAID subsystems devices and level
+                       See Documentation/admin-guide/md.rst.
+       mdacon=         [MDA]
+                       Format: <first>,<last>
+                       Specifies range of consoles to be captured by the MDA.
+       mem=nn[KMG]     [KNL,BOOT] Force usage of a specific amount of memory
+                       Amount of memory to be used when the kernel is not able
+                       to see the whole system memory or for test.
+                       [X86] Work as limiting max address. Use together
+                       with memmap= to avoid physical address space collisions.
+                       Without memmap= PCI devices could be placed at addresses
+                       belonging to unused RAM.
+       mem=nopentium   [BUGS=X86-32] Disable usage of 4MB pages for kernel
+                       memory.
+       memchunk=nn[KMG]
+                       [KNL,SH] Allow user to override the default size for
+                       per-device physically contiguous DMA buffers.
+         memhp_default_state=online/offline
+                       [KNL] Set the initial state for the memory hotplug
+                       onlining policy. If not specified, the default value is
+                       set according to the
+                       CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE kernel config
+                       option.
+                       See Documentation/memory-hotplug.txt.
+       memmap=exactmap [KNL,X86] Enable setting of an exact
+                       E820 memory map, as specified by the user.
+                       Such memmap=exactmap lines can be constructed based on
+                       BIOS output or other requirements. See the memmap=nn@ss
+                       option description.
+       memmap=nn[KMG]@ss[KMG]
+                       [KNL] Force usage of a specific region of memory.
+                       Region of memory to be used is from ss to ss+nn.
+       memmap=nn[KMG]#ss[KMG]
+                       [KNL,ACPI] Mark specific memory as ACPI data.
+                       Region of memory to be marked is from ss to ss+nn.
+       memmap=nn[KMG]$ss[KMG]
+                       [KNL,ACPI] Mark specific memory as reserved.
+                       Region of memory to be reserved is from ss to ss+nn.
+                       Example: Exclude memory from 0x18690000-0x1869ffff
+                                memmap=64K$0x18690000
+                                or
+                                memmap=0x10000$0x18690000
+       memmap=nn[KMG]!ss[KMG]
+                       [KNL,X86] Mark specific memory as protected.
+                       Region of memory to be used, from ss to ss+nn.
+                       The memory region may be marked as e820 type 12 (0xc)
+                       and is NVDIMM or ADR memory.
+       memory_corruption_check=0/1 [X86]
+                       Some BIOSes seem to corrupt the first 64k of
+                       memory when doing things like suspend/resume.
+                       Setting this option will scan the memory
+                       looking for corruption.  Enabling this will
+                       both detect corruption and prevent the kernel
+                       from using the memory being corrupted.
+                       However, its intended as a diagnostic tool; if
+                       repeatable BIOS-originated corruption always
+                       affects the same memory, you can use memmap=
+                       to prevent the kernel from using that memory.
+       memory_corruption_check_size=size [X86]
+                       By default it checks for corruption in the low
+                       64k, making this memory unavailable for normal
+                       use.  Use this parameter to scan for
+                       corruption in more or less memory.
+       memory_corruption_check_period=seconds [X86]
+                       By default it checks for corruption every 60
+                       seconds.  Use this parameter to check at some
+                       other rate.  0 disables periodic checking.
+       memtest=        [KNL,X86,ARM] Enable memtest
+                       Format: <integer>
+                       default : 0 <disable>
+                       Specifies the number of memtest passes to be
+                       performed. Each pass selects another test
+                       pattern from a given set of patterns. Memtest
+                       fills the memory with this pattern, validates
+                       memory contents and reserves bad memory
+                       regions that are detected.
+       meye.*=         [HW] Set MotionEye Camera parameters
+                       See Documentation/video4linux/meye.txt.
+       mfgpt_irq=      [IA-32] Specify the IRQ to use for the
+                       Multi-Function General Purpose Timers on AMD Geode
+                       platforms.
+       mfgptfix        [X86-32] Fix MFGPT timers on AMD Geode platforms when
+                       the BIOS has incorrectly applied a workaround. TinyBIOS
+                       version 0.98 is known to be affected, 0.99 fixes the
+                       problem by letting the user disable the workaround.
+       mga=            [HW,DRM]
+       min_addr=nn[KMG]        [KNL,BOOT,ia64] All physical memory below this
+                       physical address is ignored.
+       mini2440=       [ARM,HW,KNL]
+                       Format:[0..2][b][c][t]
+                       Default: "0tb"
+                       MINI2440 configuration specification:
+                       0 - The attached screen is the 3.5" TFT
+                       1 - The attached screen is the 7" TFT
+                       2 - The VGA Shield is attached (1024x768)
+                       Leaving out the screen size parameter will not load
+                       the TFT driver, and the framebuffer will be left
+                       unconfigured.
+                       b - Enable backlight. The TFT backlight pin will be
+                       linked to the kernel VESA blanking code and a GPIO
+                       LED. This parameter is not necessary when using the
+                       VGA shield.
+                       c - Enable the s3c camera interface.
+                       t - Reserved for enabling touchscreen support. The
+                       touchscreen support is not enabled in the mainstream
+                       kernel as of 2.6.30, a preliminary port can be found
+                       in the "bleeding edge" mini2440 support kernel at
+                       http://repo.or.cz/w/linux-2.6/mini2440.git
+       mminit_loglevel=
+                       [KNL] When CONFIG_DEBUG_MEMORY_INIT is set, this
+                       parameter allows control of the logging verbosity for
+                       the additional memory initialisation checks. A value
+                       of 0 disables mminit logging and a level of 4 will
+                       log everything. Information is printed at KERN_DEBUG
+                       so loglevel=8 may also need to be specified.
+       module.sig_enforce
+                       [KNL] When CONFIG_MODULE_SIG is set, this means that
+                       modules without (valid) signatures will fail to load.
+                       Note that if CONFIG_MODULE_SIG_FORCE is set, that
+                       is always true, so this option does nothing.
+       module_blacklist=  [KNL] Do not load a comma-separated list of
+                       modules.  Useful for debugging problem modules.
+       mousedev.tap_time=
+                       [MOUSE] Maximum time between finger touching and
+                       leaving touchpad surface for touch to be considered
+                       a tap and be reported as a left button click (for
+                       touchpads working in absolute mode only).
+                       Format: <msecs>
+       mousedev.xres=  [MOUSE] Horizontal screen resolution, used for devices
+                       reporting absolute coordinates, such as tablets
+       mousedev.yres=  [MOUSE] Vertical screen resolution, used for devices
+                       reporting absolute coordinates, such as tablets
+       movablecore=nn[KMG]     [KNL,X86,IA-64,PPC] This parameter
+                       is similar to kernelcore except it specifies the
+                       amount of memory used for migratable allocations.
+                       If both kernelcore and movablecore is specified,
+                       then kernelcore will be at *least* the specified
+                       value but may be more. If movablecore on its own
+                       is specified, the administrator must be careful
+                       that the amount of memory usable for all allocations
+                       is not too small.
 -      show_msr=       [x86] show boot-time MSR settings
 -                      Format: { <integer> }
 -                      Show boot-time (BIOS-initialized) MSR settings.
 -                      The parameter means the number of CPUs to show,
 -                      for example 1 means boot CPU only.
 -
++      movable_node    [KNL] Boot-time switch to enable the effects
+                       of CONFIG_MOVABLE_NODE=y. See mm/Kconfig for details.
+       MTD_Partition=  [MTD]
+                       Format: <name>,<region-number>,<size>,<offset>
+       MTD_Region=     [MTD] Format:
+                       <name>,<region-number>[,<base>,<size>,<buswidth>,<altbuswidth>]
+       mtdparts=       [MTD]
+                       See drivers/mtd/cmdlinepart.c.
+       multitce=off    [PPC]  This parameter disables the use of the pSeries
+                       firmware feature for updating multiple TCE entries
+                       at a time.
+       onenand.bdry=   [HW,MTD] Flex-OneNAND Boundary Configuration
+                       Format: [die0_boundary][,die0_lock][,die1_boundary][,die1_lock]
+                       boundary - index of last SLC block on Flex-OneNAND.
+                                  The remaining blocks are configured as MLC blocks.
+                       lock     - Configure if Flex-OneNAND boundary should be locked.
+                                  Once locked, the boundary cannot be changed.
+                                  1 indicates lock status, 0 indicates unlock status.
+       mtdset=         [ARM]
+                       ARM/S3C2412 JIVE boot control
+                       See arch/arm/mach-s3c2412/mach-jive.c
+       mtouchusb.raw_coordinates=
+                       [HW] Make the MicroTouch USB driver use raw coordinates
+                       ('y', default) or cooked coordinates ('n')
+       mtrr_chunk_size=nn[KMG] [X86]
+                       used for mtrr cleanup. It is largest continuous chunk
+                       that could hold holes aka. UC entries.
+       mtrr_gran_size=nn[KMG] [X86]
+                       Used for mtrr cleanup. It is granularity of mtrr block.
+                       Default is 1.
+                       Large value could prevent small alignment from
+                       using up MTRRs.
+       mtrr_spare_reg_nr=n [X86]
+                       Format: <integer>
+                       Range: 0,7 : spare reg number
+                       Default : 1
+                       Used for mtrr cleanup. It is spare mtrr entries number.
+                       Set to 2 or more if your graphical card needs more.
+       n2=             [NET] SDL Inc. RISCom/N2 synchronous serial card
+       netdev=         [NET] Network devices parameters
+                       Format: <irq>,<io>,<mem_start>,<mem_end>,<name>
+                       Note that mem_start is often overloaded to mean
+                       something different and driver-specific.
+                       This usage is only documented in each driver source
+                       file if at all.
+       nf_conntrack.acct=
+                       [NETFILTER] Enable connection tracking flow accounting
+                       0 to disable accounting
+                       1 to enable accounting
+                       Default value is 0.
+       nfsaddrs=       [NFS] Deprecated.  Use ip= instead.
+                       See Documentation/filesystems/nfs/nfsroot.txt.
+       nfsroot=        [NFS] nfs root filesystem for disk-less boxes.
+                       See Documentation/filesystems/nfs/nfsroot.txt.
+       nfsrootdebug    [NFS] enable nfsroot debugging messages.
+                       See Documentation/filesystems/nfs/nfsroot.txt.
+       nfs.callback_nr_threads=
+                       [NFSv4] set the total number of threads that the
+                       NFS client will assign to service NFSv4 callback
+                       requests.
+       nfs.callback_tcpport=
+                       [NFS] set the TCP port on which the NFSv4 callback
+                       channel should listen.
+       nfs.cache_getent=
+                       [NFS] sets the pathname to the program which is used
+                       to update the NFS client cache entries.
+       nfs.cache_getent_timeout=
+                       [NFS] sets the timeout after which an attempt to
+                       update a cache entry is deemed to have failed.
+       nfs.idmap_cache_timeout=
+                       [NFS] set the maximum lifetime for idmapper cache
+                       entries.
+       nfs.enable_ino64=
+                       [NFS] enable 64-bit inode numbers.
+                       If zero, the NFS client will fake up a 32-bit inode
+                       number for the readdir() and stat() syscalls instead
+                       of returning the full 64-bit number.
+                       The default is to return 64-bit inode numbers.
+       nfs.max_session_cb_slots=
+                       [NFSv4.1] Sets the maximum number of session
+                       slots the client will assign to the callback
+                       channel. This determines the maximum number of
+                       callbacks the client will process in parallel for
+                       a particular server.
+       nfs.max_session_slots=
+                       [NFSv4.1] Sets the maximum number of session slots
+                       the client will attempt to negotiate with the server.
+                       This limits the number of simultaneous RPC requests
+                       that the client can send to the NFSv4.1 server.
+                       Note that there is little point in setting this
+                       value higher than the max_tcp_slot_table_limit.
+       nfs.nfs4_disable_idmapping=
+                       [NFSv4] When set to the default of '1', this option
+                       ensures that both the RPC level authentication
+                       scheme and the NFS level operations agree to use
+                       numeric uids/gids if the mount is using the
+                       'sec=sys' security flavour. In effect it is
+                       disabling idmapping, which can make migration from
+                       legacy NFSv2/v3 systems to NFSv4 easier.
+                       Servers that do not support this mode of operation
+                       will be autodetected by the client, and it will fall
+                       back to using the idmapper.
+                       To turn off this behaviour, set the value to '0'.
+       nfs.nfs4_unique_id=
+                       [NFS4] Specify an additional fixed unique ident-
+                       ification string that NFSv4 clients can insert into
+                       their nfs_client_id4 string.  This is typically a
+                       UUID that is generated at system install time.
+       nfs.send_implementation_id =
+                       [NFSv4.1] Send client implementation identification
+                       information in exchange_id requests.
+                       If zero, no implementation identification information
+                       will be sent.
+                       The default is to send the implementation identification
+                       information.
+       nfs.recover_lost_locks =
+                       [NFSv4] Attempt to recover locks that were lost due
+                       to a lease timeout on the server. Please note that
+                       doing this risks data corruption, since there are
+                       no guarantees that the file will remain unchanged
+                       after the locks are lost.
+                       If you want to enable the kernel legacy behaviour of
+                       attempting to recover these locks, then set this
+                       parameter to '1'.
+                       The default parameter value of '0' causes the kernel
+                       not to attempt recovery of lost locks.
+       nfs4.layoutstats_timer =
+                       [NFSv4.2] Change the rate at which the kernel sends
+                       layoutstats to the pNFS metadata server.
+                       Setting this to value to 0 causes the kernel to use
+                       whatever value is the default set by the layout
+                       driver. A non-zero value sets the minimum interval
+                       in seconds between layoutstats transmissions.
+       nfsd.nfs4_disable_idmapping=
+                       [NFSv4] When set to the default of '1', the NFSv4
+                       server will return only numeric uids and gids to
+                       clients using auth_sys, and will accept numeric uids
+                       and gids from such clients.  This is intended to ease
+                       migration from NFSv2/v3.
+       objlayoutdriver.osd_login_prog=
+                       [NFS] [OBJLAYOUT] sets the pathname to the program which
+                       is used to automatically discover and login into new
+                       osd-targets. Please see:
+                       Documentation/filesystems/pnfs.txt for more explanations
+       nmi_debug=      [KNL,AVR32,SH] Specify one or more actions to take
+                       when a NMI is triggered.
+                       Format: [state][,regs][,debounce][,die]
+       nmi_watchdog=   [KNL,BUGS=X86] Debugging features for SMP kernels
+                       Format: [panic,][nopanic,][num]
+                       Valid num: 0 or 1
+                       0 - turn hardlockup detector in nmi_watchdog off
+                       1 - turn hardlockup detector in nmi_watchdog on
+                       When panic is specified, panic when an NMI watchdog
+                       timeout occurs (or 'nopanic' to override the opposite
+                       default). To disable both hard and soft lockup detectors,
+                       please see 'nowatchdog'.
+                       This is useful when you use a panic=... timeout and
+                       need the box quickly up again.
+       netpoll.carrier_timeout=
+                       [NET] Specifies amount of time (in seconds) that
+                       netpoll should wait for a carrier. By default netpoll
+                       waits 4 seconds.
+       no387           [BUGS=X86-32] Tells the kernel to use the 387 maths
+                       emulation library even if a 387 maths coprocessor
+                       is present.
+       no_console_suspend
+                       [HW] Never suspend the console
+                       Disable suspending of consoles during suspend and
+                       hibernate operations.  Once disabled, debugging
+                       messages can reach various consoles while the rest
+                       of the system is being put to sleep (ie, while
+                       debugging driver suspend/resume hooks).  This may
+                       not work reliably with all consoles, but is known
+                       to work with serial and VGA consoles.
+                       To facilitate more flexible debugging, we also add
+                       console_suspend, a printk module parameter to control
+                       it. Users could use console_suspend (usually
+                       /sys/module/printk/parameters/console_suspend) to
+                       turn on/off it dynamically.
+       noaliencache    [MM, NUMA, SLAB] Disables the allocation of alien
+                       caches in the slab allocator.  Saves per-node memory,
+                       but will impact performance.
+       noalign         [KNL,ARM]
+       noapic          [SMP,APIC] Tells the kernel to not make use of any
+                       IOAPICs that may be present in the system.
+       noautogroup     Disable scheduler automatic task group creation.
+       nobats          [PPC] Do not use BATs for mapping kernel lowmem
+                       on "Classic" PPC cores.
+       nocache         [ARM]
+       noclflush       [BUGS=X86] Don't use the CLFLUSH instruction
+       nodelayacct     [KNL] Disable per-task delay accounting
+       nodsp           [SH] Disable hardware DSP at boot time.
+       noefi           Disable EFI runtime services support.
+       noexec          [IA-64]
+       noexec          [X86]
+                       On X86-32 available only on PAE configured kernels.
+                       noexec=on: enable non-executable mappings (default)
+                       noexec=off: disable non-executable mappings
+       nosmap          [X86]
+                       Disable SMAP (Supervisor Mode Access Prevention)
+                       even if it is supported by processor.
+       nosmep          [X86]
+                       Disable SMEP (Supervisor Mode Execution Prevention)
+                       even if it is supported by processor.
+       noexec32        [X86-64]
+                       This affects only 32-bit executables.
+                       noexec32=on: enable non-executable mappings (default)
+                               read doesn't imply executable mappings
+                       noexec32=off: disable non-executable mappings
+                               read implies executable mappings
+       nofpu           [MIPS,SH] Disable hardware FPU at boot time.
+       nofxsr          [BUGS=X86-32] Disables x86 floating point extended
+                       register save and restore. The kernel will only save
+                       legacy floating-point registers on task switch.
+       nohugeiomap     [KNL,x86] Disable kernel huge I/O mappings.
+       nosmt           [KNL,S390] Disable symmetric multithreading (SMT).
+                       Equivalent to smt=1.
+       noxsave         [BUGS=X86] Disables x86 extended register state save
+                       and restore using xsave. The kernel will fallback to
+                       enabling legacy floating-point and sse state.
+       noxsaveopt      [X86] Disables xsaveopt used in saving x86 extended
+                       register states. The kernel will fall back to use
+                       xsave to save the states. By using this parameter,
+                       performance of saving the states is degraded because
+                       xsave doesn't support modified optimization while
+                       xsaveopt supports it on xsaveopt enabled systems.
+       noxsaves        [X86] Disables xsaves and xrstors used in saving and
+                       restoring x86 extended register state in compacted
+                       form of xsave area. The kernel will fall back to use
+                       xsaveopt and xrstor to save and restore the states
+                       in standard form of xsave area. By using this
+                       parameter, xsave area per process might occupy more
+                       memory on xsaves enabled systems.
+       nohlt           [BUGS=ARM,SH] Tells the kernel that the sleep(SH) or
+                       wfi(ARM) instruction doesn't work correctly and not to
+                       use it. This is also useful when using JTAG debugger.
+       no_file_caps    Tells the kernel not to honor file capabilities.  The
+                       only way then for a file to be executed with privilege
+                       is to be setuid root or executed by root.
+       nohalt          [IA-64] Tells the kernel not to use the power saving
+                       function PAL_HALT_LIGHT when idle. This increases
+                       power-consumption. On the positive side, it reduces
+                       interrupt wake-up latency, which may improve performance
+                       in certain environments such as networked servers or
+                       real-time systems.
+       nohibernate     [HIBERNATION] Disable hibernation and resume.
+       nohz=           [KNL] Boottime enable/disable dynamic ticks
+                       Valid arguments: on, off
+                       Default: on
+       nohz_full=      [KNL,BOOT]
+                       The argument is a cpu list, as described above.
+                       In kernels built with CONFIG_NO_HZ_FULL=y, set
+                       the specified list of CPUs whose tick will be stopped
+                       whenever possible. The boot CPU will be forced outside
+                       the range to maintain the timekeeping.
+                       The CPUs in this range must also be included in the
+                       rcu_nocbs= set.
+       noiotrap        [SH] Disables trapped I/O port accesses.
+       noirqdebug      [X86-32] Disables the code which attempts to detect and
+                       disable unhandled interrupt sources.
+       no_timer_check  [X86,APIC] Disables the code which tests for
+                       broken timer IRQ sources.
+       noisapnp        [ISAPNP] Disables ISA PnP code.
+       noinitrd        [RAM] Tells the kernel not to load any configured
+                       initial RAM disk.
+       nointremap      [X86-64, Intel-IOMMU] Do not enable interrupt
+                       remapping.
+                       [Deprecated - use intremap=off]
+       nointroute      [IA-64]
+       noinvpcid       [X86] Disable the INVPCID cpu feature.
+       nojitter        [IA-64] Disables jitter checking for ITC timers.
+       no-kvmclock     [X86,KVM] Disable paravirtualized KVM clock driver
+       no-kvmapf       [X86,KVM] Disable paravirtualized asynchronous page
+                       fault handling.
++      no-vmw-sched-clock
++                      [X86,PV_OPS] Disable paravirtualized VMware scheduler
++                      clock and use the default one.
++
+       no-steal-acc    [X86,KVM] Disable paravirtualized steal time accounting.
+                       steal time is computed, but won't influence scheduler
+                       behaviour
+       nolapic         [X86-32,APIC] Do not enable or use the local APIC.
+       nolapic_timer   [X86-32,APIC] Do not use the local APIC timer.
+       noltlbs         [PPC] Do not use large page/tlb entries for kernel
+                       lowmem mapping on PPC40x and PPC8xx
+       nomca           [IA-64] Disable machine check abort handling
+       nomce           [X86-32] Disable Machine Check Exception
+       nomfgpt         [X86-32] Disable Multi-Function General Purpose
+                       Timer usage (for AMD Geode machines).
+       nonmi_ipi       [X86] Disable using NMI IPIs during panic/reboot to
+                       shutdown the other cpus.  Instead use the REBOOT_VECTOR
+                       irq.
+       nomodule        Disable module load
+       nopat           [X86] Disable PAT (page attribute table extension of
+                       pagetables) support.
+       norandmaps      Don't use address space randomization.  Equivalent to
+                       echo 0 > /proc/sys/kernel/randomize_va_space
+       noreplace-paravirt      [X86,IA-64,PV_OPS] Don't patch paravirt_ops
+       noreplace-smp   [X86-32,SMP] Don't replace SMP instructions
+                       with UP alternatives
+       nordrand        [X86] Disable kernel use of the RDRAND and
+                       RDSEED instructions even if they are supported
+                       by the processor.  RDRAND and RDSEED are still
+                       available to user space applications.
+       noresume        [SWSUSP] Disables resume and restores original swap
+                       space.
+       no-scroll       [VGA] Disables scrollback.
+                       This is required for the Braillex ib80-piezo Braille
+                       reader made by F.H. Papenmeier (Germany).
+       nosbagart       [IA-64]
+       nosep           [BUGS=X86-32] Disables x86 SYSENTER/SYSEXIT support.
+       nosmp           [SMP] Tells an SMP kernel to act as a UP kernel,
+                       and disable the IO APIC.  legacy for "maxcpus=0".
+       nosoftlockup    [KNL] Disable the soft-lockup detector.
+       nosync          [HW,M68K] Disables sync negotiation for all devices.
+       notsc           [BUGS=X86-32] Disable Time Stamp Counter
+       nowatchdog      [KNL] Disable both lockup detectors, i.e.
+                         soft-lockup and NMI watchdog (hard-lockup).
+       nowb            [ARM]
+       nox2apic        [X86-64,APIC] Do not enable x2APIC mode.
+       cpu0_hotplug    [X86] Turn on CPU0 hotplug feature when
+                       CONFIG_BOOTPARAM_HOTPLUG_CPU0 is off.
+                       Some features depend on CPU0. Known dependencies are:
+                       1. Resume from suspend/hibernate depends on CPU0.
+                       Suspend/hibernate will fail if CPU0 is offline and you
+                       need to online CPU0 before suspend/hibernate.
+                       2. PIC interrupts also depend on CPU0. CPU0 can't be
+                       removed if a PIC interrupt is detected.
+                       It's said poweroff/reboot may depend on CPU0 on some
+                       machines although I haven't seen such issues so far
+                       after CPU0 is offline on a few tested machines.
+                       If the dependencies are under your control, you can
+                       turn on cpu0_hotplug.
+       nptcg=          [IA-64] Override max number of concurrent global TLB
+                       purges which is reported from either PAL_VM_SUMMARY or
+                       SAL PALO.
+       nr_cpus=        [SMP] Maximum number of processors that an SMP kernel
+                       could support.  nr_cpus=n : n >= 1 limits the kernel to
+                       support 'n' processors. It could be larger than the
+                       number of already plugged CPU during bootup, later in
+                       runtime you can physically add extra cpu until it reaches
+                       n. So during boot up some boot time memory for per-cpu
+                       variables need be pre-allocated for later physical cpu
+                       hot plugging.
+       nr_uarts=       [SERIAL] maximum number of UARTs to be registered.
+       numa_balancing= [KNL,X86] Enable or disable automatic NUMA balancing.
+                       Allowed values are enable and disable
+       numa_zonelist_order= [KNL, BOOT] Select zonelist order for NUMA.
+                       one of ['zone', 'node', 'default'] can be specified
+                       This can be set from sysctl after boot.
+                       See Documentation/sysctl/vm.txt for details.
+       ohci1394_dma=early      [HW] enable debugging via the ohci1394 driver.
+                       See Documentation/debugging-via-ohci1394.txt for more
+                       info.
+       olpc_ec_timeout= [OLPC] ms delay when issuing EC commands
+                       Rather than timing out after 20 ms if an EC
+                       command is not properly ACKed, override the length
+                       of the timeout.  We have interrupts disabled while
+                       waiting for the ACK, so if this is set too high
+                       interrupts *may* be lost!
+       omap_mux=       [OMAP] Override bootloader pin multiplexing.
+                       Format: <mux_mode0.mode_name=value>...
+                       For example, to override I2C bus2:
+                       omap_mux=i2c2_scl.i2c2_scl=0x100,i2c2_sda.i2c2_sda=0x100
+       oprofile.timer= [HW]
+                       Use timer interrupt instead of performance counters
+       oprofile.cpu_type=      Force an oprofile cpu type
+                       This might be useful if you have an older oprofile
+                       userland or if you want common events.
+                       Format: { arch_perfmon }
+                       arch_perfmon: [X86] Force use of architectural
+                               perfmon on Intel CPUs instead of the
+                               CPU specific event set.
+                       timer: [X86] Force use of architectural NMI
+                               timer mode (see also oprofile.timer
+                               for generic hr timer mode)
+       oops=panic      Always panic on oopses. Default is to just kill the
+                       process, but there is a small probability of
+                       deadlocking the machine.
+                       This will also cause panics on machine check exceptions.
+                       Useful together with panic=30 to trigger a reboot.
+       OSS             [HW,OSS]
+                       See Documentation/sound/oss/oss-parameters.txt
+       page_owner=     [KNL] Boot-time page_owner enabling option.
+                       Storage of the information about who allocated
+                       each page is disabled in default. With this switch,
+                       we can turn it on.
+                       on: enable the feature
+       page_poison=    [KNL] Boot-time parameter changing the state of
+                       poisoning on the buddy allocator.
+                       off: turn off poisoning
+                       on: turn on poisoning
+       panic=          [KNL] Kernel behaviour on panic: delay <timeout>
+                       timeout > 0: seconds before rebooting
+                       timeout = 0: wait forever
+                       timeout < 0: reboot immediately
+                       Format: <timeout>
+       panic_on_warn   panic() instead of WARN().  Useful to cause kdump
+                       on a WARN().
+       crash_kexec_post_notifiers
+                       Run kdump after running panic-notifiers and dumping
+                       kmsg. This only for the users who doubt kdump always
+                       succeeds in any situation.
+                       Note that this also increases risks of kdump failure,
+                       because some panic notifiers can make the crashed
+                       kernel more unstable.
+       parkbd.port=    [HW] Parallel port number the keyboard adapter is
+                       connected to, default is 0.
+                       Format: <parport#>
+       parkbd.mode=    [HW] Parallel port keyboard adapter mode of operation,
+                       0 for XT, 1 for AT (default is AT).
+                       Format: <mode>
+       parport=        [HW,PPT] Specify parallel ports. 0 disables.
+                       Format: { 0 | auto | 0xBBB[,IRQ[,DMA]] }
+                       Use 'auto' to force the driver to use any
+                       IRQ/DMA settings detected (the default is to
+                       ignore detected IRQ/DMA settings because of
+                       possible conflicts). You can specify the base
+                       address, IRQ, and DMA settings; IRQ and DMA
+                       should be numbers, or 'auto' (for using detected
+                       settings on that particular port), or 'nofifo'
+                       (to avoid using a FIFO even if it is detected).
+                       Parallel ports are assigned in the order they
+                       are specified on the command line, starting
+                       with parport0.
+       parport_init_mode=      [HW,PPT]
+                       Configure VIA parallel port to operate in
+                       a specific mode. This is necessary on Pegasos
+                       computer where firmware has no options for setting
+                       up parallel port mode and sets it to spp.
+                       Currently this function knows 686a and 8231 chips.
+                       Format: [spp|ps2|epp|ecp|ecpepp]
+       pause_on_oops=
+                       Halt all CPUs after the first oops has been printed for
+                       the specified number of seconds.  This is to be used if
+                       your oopses keep scrolling off the screen.
+       pcbit=          [HW,ISDN]
+       pcd.            [PARIDE]
+                       See header of drivers/block/paride/pcd.c.
+                       See also Documentation/blockdev/paride.txt.
+       pci=option[,option...]  [PCI] various PCI subsystem options:
+               earlydump       [X86] dump PCI config space before the kernel
+                               changes anything
+               off             [X86] don't probe for the PCI bus
+               bios            [X86-32] force use of PCI BIOS, don't access
+                               the hardware directly. Use this if your machine
+                               has a non-standard PCI host bridge.
+               nobios          [X86-32] disallow use of PCI BIOS, only direct
+                               hardware access methods are allowed. Use this
+                               if you experience crashes upon bootup and you
+                               suspect they are caused by the BIOS.
+               conf1           [X86] Force use of PCI Configuration Access
+                               Mechanism 1 (config address in IO port 0xCF8,
+                               data in IO port 0xCFC, both 32-bit).
+               conf2           [X86] Force use of PCI Configuration Access
+                               Mechanism 2 (IO port 0xCF8 is an 8-bit port for
+                               the function, IO port 0xCFA, also 8-bit, sets
+                               bus number. The config space is then accessed
+                               through ports 0xC000-0xCFFF).
+                               See http://wiki.osdev.org/PCI for more info
+                               on the configuration access mechanisms.
+               noaer           [PCIE] If the PCIEAER kernel config parameter is
+                               enabled, this kernel boot option can be used to
+                               disable the use of PCIE advanced error reporting.
+               nodomains       [PCI] Disable support for multiple PCI
+                               root domains (aka PCI segments, in ACPI-speak).
+               nommconf        [X86] Disable use of MMCONFIG for PCI
+                               Configuration
+               check_enable_amd_mmconf [X86] check for and enable
+                               properly configured MMIO access to PCI
+                               config space on AMD family 10h CPU
+               nomsi           [MSI] If the PCI_MSI kernel config parameter is
+                               enabled, this kernel boot option can be used to
+                               disable the use of MSI interrupts system-wide.
+               noioapicquirk   [APIC] Disable all boot interrupt quirks.
+                               Safety option to keep boot IRQs enabled. This
+                               should never be necessary.
+               ioapicreroute   [APIC] Enable rerouting of boot IRQs to the
+                               primary IO-APIC for bridges that cannot disable
+                               boot IRQs. This fixes a source of spurious IRQs
+                               when the system masks IRQs.
+               noioapicreroute [APIC] Disable workaround that uses the
+                               boot IRQ equivalent of an IRQ that connects to
+                               a chipset where boot IRQs cannot be disabled.
+                               The opposite of ioapicreroute.
+               biosirq         [X86-32] Use PCI BIOS calls to get the interrupt
+                               routing table. These calls are known to be buggy
+                               on several machines and they hang the machine
+                               when used, but on other computers it's the only
+                               way to get the interrupt routing table. Try
+                               this option if the kernel is unable to allocate
+                               IRQs or discover secondary PCI buses on your
+                               motherboard.
+               rom             [X86] Assign address space to expansion ROMs.
+                               Use with caution as certain devices share
+                               address decoders between ROMs and other
+                               resources.
+               norom           [X86] Do not assign address space to
+                               expansion ROMs that do not already have
+                               BIOS assigned address ranges.
+               nobar           [X86] Do not assign address space to the
+                               BARs that weren't assigned by the BIOS.
+               irqmask=0xMMMM  [X86] Set a bit mask of IRQs allowed to be
+                               assigned automatically to PCI devices. You can
+                               make the kernel exclude IRQs of your ISA cards
+                               this way.
+               pirqaddr=0xAAAAA        [X86] Specify the physical address
+                               of the PIRQ table (normally generated
+                               by the BIOS) if it is outside the
+                               F0000h-100000h range.
+               lastbus=N       [X86] Scan all buses thru bus #N. Can be
+                               useful if the kernel is unable to find your
+                               secondary buses and you want to tell it
+                               explicitly which ones they are.
+               assign-busses   [X86] Always assign all PCI bus
+                               numbers ourselves, overriding
+                               whatever the firmware may have done.
+               usepirqmask     [X86] Honor the possible IRQ mask stored
+                               in the BIOS $PIR table. This is needed on
+                               some systems with broken BIOSes, notably
+                               some HP Pavilion N5400 and Omnibook XE3
+                               notebooks. This will have no effect if ACPI
+                               IRQ routing is enabled.
+               noacpi          [X86] Do not use ACPI for IRQ routing
+                               or for PCI scanning.
+               use_crs         [X86] Use PCI host bridge window information
+                               from ACPI.  On BIOSes from 2008 or later, this
+                               is enabled by default.  If you need to use this,
+                               please report a bug.
+               nocrs           [X86] Ignore PCI host bridge windows from ACPI.
+                               If you need to use this, please report a bug.
+               routeirq        Do IRQ routing for all PCI devices.
+                               This is normally done in pci_enable_device(),
+                               so this option is a temporary workaround
+                               for broken drivers that don't call it.
+               skip_isa_align  [X86] do not align io start addr, so can
+                               handle more pci cards
+               noearly         [X86] Don't do any early type 1 scanning.
+                               This might help on some broken boards which
+                               machine check when some devices' config space
+                               is read. But various workarounds are disabled
+                               and some IOMMU drivers will not work.
+               bfsort          Sort PCI devices into breadth-first order.
+                               This sorting is done to get a device
+                               order compatible with older (<= 2.4) kernels.
+               nobfsort        Don't sort PCI devices into breadth-first order.
+               pcie_bus_tune_off       Disable PCIe MPS (Max Payload Size)
+                               tuning and use the BIOS-configured MPS defaults.
+               pcie_bus_safe   Set every device's MPS to the largest value
+                               supported by all devices below the root complex.
+               pcie_bus_perf   Set device MPS to the largest allowable MPS
+                               based on its parent bus. Also set MRRS (Max
+                               Read Request Size) to the largest supported
+                               value (no larger than the MPS that the device
+                               or bus can support) for best performance.
+               pcie_bus_peer2peer      Set every device's MPS to 128B, which
+                               every device is guaranteed to support. This
+                               configuration allows peer-to-peer DMA between
+                               any pair of devices, possibly at the cost of
+                               reduced performance.  This also guarantees
+                               that hot-added devices will work.
+               cbiosize=nn[KMG]        The fixed amount of bus space which is
+                               reserved for the CardBus bridge's IO window.
+                               The default value is 256 bytes.
+               cbmemsize=nn[KMG]       The fixed amount of bus space which is
+                               reserved for the CardBus bridge's memory
+                               window. The default value is 64 megabytes.
+               resource_alignment=
+                               Format:
+                               [<order of align>@][<domain>:]<bus>:<slot>.<func>[; ...]
+                               [<order of align>@]pci:<vendor>:<device>\
+                                               [:<subvendor>:<subdevice>][; ...]
+                               Specifies alignment and device to reassign
+                               aligned memory resources.
+                               If <order of align> is not specified,
+                               PAGE_SIZE is used as alignment.
+                               PCI-PCI bridge can be specified, if resource
+                               windows need to be expanded.
+                               To specify the alignment for several
+                               instances of a device, the PCI vendor,
+                               device, subvendor, and subdevice may be
+                               specified, e.g., 4096@pci:8086:9c22:103c:198f
+               ecrc=           Enable/disable PCIe ECRC (transaction layer
+                               end-to-end CRC checking).
+                               bios: Use BIOS/firmware settings. This is the
+                               the default.
+                               off: Turn ECRC off
+                               on: Turn ECRC on.
+               hpiosize=nn[KMG]        The fixed amount of bus space which is
+                               reserved for hotplug bridge's IO window.
+                               Default size is 256 bytes.
+               hpmemsize=nn[KMG]       The fixed amount of bus space which is
+                               reserved for hotplug bridge's memory window.
+                               Default size is 2 megabytes.
+               hpbussize=nn    The minimum amount of additional bus numbers
+                               reserved for buses below a hotplug bridge.
+                               Default is 1.
+               realloc=        Enable/disable reallocating PCI bridge resources
+                               if allocations done by BIOS are too small to
+                               accommodate resources required by all child
+                               devices.
+                               off: Turn realloc off
+                               on: Turn realloc on
+               realloc         same as realloc=on
+               noari           do not use PCIe ARI.
+               pcie_scan_all   Scan all possible PCIe devices.  Otherwise we
+                               only look for one device below a PCIe downstream
+                               port.
+       pcie_aspm=      [PCIE] Forcibly enable or disable PCIe Active State Power
+                       Management.
+               off     Disable ASPM.
+               force   Enable ASPM even on devices that claim not to support it.
+                       WARNING: Forcing ASPM on may cause system lockups.
+       pcie_hp=        [PCIE] PCI Express Hotplug driver options:
+               nomsi   Do not use MSI for PCI Express Native Hotplug (this
+                       makes all PCIe ports use INTx for hotplug services).
+       pcie_ports=     [PCIE] PCIe ports handling:
+               auto    Ask the BIOS whether or not to use native PCIe services
+                       associated with PCIe ports (PME, hot-plug, AER).  Use
+                       them only if that is allowed by the BIOS.
+               native  Use native PCIe services associated with PCIe ports
+                       unconditionally.
+               compat  Treat PCIe ports as PCI-to-PCI bridges, disable the PCIe
+                       ports driver.
+       pcie_port_pm=   [PCIE] PCIe port power management handling:
+               off     Disable power management of all PCIe ports
+               force   Forcibly enable power management of all PCIe ports
+       pcie_pme=       [PCIE,PM] Native PCIe PME signaling options:
+               nomsi   Do not use MSI for native PCIe PME signaling (this makes
+                       all PCIe root ports use INTx for all services).
+       pcmv=           [HW,PCMCIA] BadgePAD 4
+       pd_ignore_unused
+                       [PM]
+                       Keep all power-domains already enabled by bootloader on,
+                       even if no driver has claimed them. This is useful
+                       for debug and development, but should not be
+                       needed on a platform with proper driver support.
+       pd.             [PARIDE]
+                       See Documentation/blockdev/paride.txt.
+       pdcchassis=     [PARISC,HW] Disable/Enable PDC Chassis Status codes at
+                       boot time.
+                       Format: { 0 | 1 }
+                       See arch/parisc/kernel/pdc_chassis.c
+       percpu_alloc=   Select which percpu first chunk allocator to use.
+                       Currently supported values are "embed" and "page".
+                       Archs may support subset or none of the selections.
+                       See comments in mm/percpu.c for details on each
+                       allocator.  This parameter is primarily for debugging
+                       and performance comparison.
+       pf.             [PARIDE]
+                       See Documentation/blockdev/paride.txt.
+       pg.             [PARIDE]
+                       See Documentation/blockdev/paride.txt.
+       pirq=           [SMP,APIC] Manual mp-table setup
+                       See Documentation/x86/i386/IO-APIC.txt.
+       plip=           [PPT,NET] Parallel port network link
+                       Format: { parport<nr> | timid | 0 }
+                       See also Documentation/parport.txt.
+       pmtmr=          [X86] Manual setup of pmtmr I/O Port.
+                       Override pmtimer IOPort with a hex value.
+                       e.g. pmtmr=0x508
+       pnp.debug=1     [PNP]
+                       Enable PNP debug messages (depends on the
+                       CONFIG_PNP_DEBUG_MESSAGES option).  Change at run-time
+                       via /sys/module/pnp/parameters/debug.  We always show
+                       current resource usage; turning this on also shows
+                       possible settings and some assignment information.
+       pnpacpi=        [ACPI]
+                       { off }
+       pnpbios=        [ISAPNP]
+                       { on | off | curr | res | no-curr | no-res }
+       pnp_reserve_irq=
+                       [ISAPNP] Exclude IRQs for the autoconfiguration
+       pnp_reserve_dma=
+                       [ISAPNP] Exclude DMAs for the autoconfiguration
+       pnp_reserve_io= [ISAPNP] Exclude I/O ports for the autoconfiguration
+                       Ranges are in pairs (I/O port base and size).
+       pnp_reserve_mem=
+                       [ISAPNP] Exclude memory regions for the
+                       autoconfiguration.
+                       Ranges are in pairs (memory base and size).
+       ports=          [IP_VS_FTP] IPVS ftp helper module
+                       Default is 21.
+                       Up to 8 (IP_VS_APP_MAX_PORTS) ports
+                       may be specified.
+                       Format: <port>,<port>....
+       powersave=off   [PPC] This option disables power saving features.
+                       It specifically disables cpuidle and sets the
+                       platform machine description specific power_save
+                       function to NULL. On Idle the CPU just reduces
+                       execution priority.
+       ppc_strict_facility_enable
+                       [PPC] This option catches any kernel floating point,
+                       Altivec, VSX and SPE outside of regions specifically
+                       allowed (eg kernel_enable_fpu()/kernel_disable_fpu()).
+                       There is some performance impact when enabling this.
+       print-fatal-signals=
+                       [KNL] debug: print fatal signals
+                       If enabled, warn about various signal handling
+                       related application anomalies: too many signals,
+                       too many POSIX.1 timers, fatal signals causing a
+                       coredump - etc.
+                       If you hit the warning due to signal overflow,
+                       you might want to try "ulimit -i unlimited".
+                       default: off.
+       printk.always_kmsg_dump=
+                       Trigger kmsg_dump for cases other than kernel oops or
+                       panics
+                       Format: <bool>  (1/Y/y=enable, 0/N/n=disable)
+                       default: disabled
+       printk.devkmsg={on,off,ratelimit}
+                       Control writing to /dev/kmsg.
+                       on - unlimited logging to /dev/kmsg from userspace
+                       off - logging to /dev/kmsg disabled
+                       ratelimit - ratelimit the logging
+                       Default: ratelimit
+       printk.time=    Show timing data prefixed to each printk message line
+                       Format: <bool>  (1/Y/y=enable, 0/N/n=disable)
+       processor.max_cstate=   [HW,ACPI]
+                       Limit processor to maximum C-state
+                       max_cstate=9 overrides any DMI blacklist limit.
+       processor.nocst [HW,ACPI]
+                       Ignore the _CST method to determine C-states,
+                       instead using the legacy FADT method
+       profile=        [KNL] Enable kernel profiling via /proc/profile
+                       Format: [schedule,]<number>
+                       Param: "schedule" - profile schedule points.
+                       Param: <number> - step/bucket size as a power of 2 for
+                               statistical time based profiling.
+                       Param: "sleep" - profile D-state sleeping (millisecs).
+                               Requires CONFIG_SCHEDSTATS
+                       Param: "kvm" - profile VM exits.
+       prompt_ramdisk= [RAM] List of RAM disks to prompt for floppy disk
+                       before loading.
+                       See Documentation/blockdev/ramdisk.txt.
+       psmouse.proto=  [HW,MOUSE] Highest PS2 mouse protocol extension to
+                       probe for; one of (bare|imps|exps|lifebook|any).
+       psmouse.rate=   [HW,MOUSE] Set desired mouse report rate, in reports
+                       per second.
+       psmouse.resetafter=     [HW,MOUSE]
+                       Try to reset the device after so many bad packets
+                       (0 = never).
+       psmouse.resolution=
+                       [HW,MOUSE] Set desired mouse resolution, in dpi.
+       psmouse.smartscroll=
+                       [HW,MOUSE] Controls Logitech smartscroll autorepeat.
+                       0 = disabled, 1 = enabled (default).
+       pstore.backend= Specify the name of the pstore backend to use
+       pt.             [PARIDE]
+                       See Documentation/blockdev/paride.txt.
+       pty.legacy_count=
+                       [KNL] Number of legacy pty's. Overwrites compiled-in
+                       default number.
+       quiet           [KNL] Disable most log messages
+       r128=           [HW,DRM]
+       raid=           [HW,RAID]
+                       See Documentation/admin-guide/md.rst.
+       ramdisk_size=   [RAM] Sizes of RAM disks in kilobytes
+                       See Documentation/blockdev/ramdisk.txt.
+       rcu_nocbs=      [KNL]
+                       The argument is a cpu list, as described above.
+                       In kernels built with CONFIG_RCU_NOCB_CPU=y, set
+                       the specified list of CPUs to be no-callback CPUs.
+                       Invocation of these CPUs' RCU callbacks will
+                       be offloaded to "rcuox/N" kthreads created for
+                       that purpose, where "x" is "b" for RCU-bh, "p"
+                       for RCU-preempt, and "s" for RCU-sched, and "N"
+                       is the CPU number.  This reduces OS jitter on the
+                       offloaded CPUs, which can be useful for HPC and
+                       real-time workloads.  It can also improve energy
+                       efficiency for asymmetric multiprocessors.
+       rcu_nocb_poll   [KNL]
+                       Rather than requiring that offloaded CPUs
+                       (specified by rcu_nocbs= above) explicitly
+                       awaken the corresponding "rcuoN" kthreads,
+                       make these kthreads poll for callbacks.
+                       This improves the real-time response for the
+                       offloaded CPUs by relieving them of the need to
+                       wake up the corresponding kthread, but degrades
+                       energy efficiency by requiring that the kthreads
+                       periodically wake up to do the polling.
+       rcutree.blimit= [KNL]
+                       Set maximum number of finished RCU callbacks to
+                       process in one batch.
+       rcutree.dump_tree=      [KNL]
+                       Dump the structure of the rcu_node combining tree
+                       out at early boot.  This is used for diagnostic
+                       purposes, to verify correct tree setup.
+       rcutree.gp_cleanup_delay=       [KNL]
+                       Set the number of jiffies to delay each step of
+                       RCU grace-period cleanup.  This only has effect
+                       when CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP is set.
+       rcutree.gp_init_delay=  [KNL]
+                       Set the number of jiffies to delay each step of
+                       RCU grace-period initialization.  This only has
+                       effect when CONFIG_RCU_TORTURE_TEST_SLOW_INIT
+                       is set.
+       rcutree.gp_preinit_delay=       [KNL]
+                       Set the number of jiffies to delay each step of
+                       RCU grace-period pre-initialization, that is,
+                       the propagation of recent CPU-hotplug changes up
+                       the rcu_node combining tree.  This only has effect
+                       when CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT is set.
+       rcutree.rcu_fanout_exact= [KNL]
+                       Disable autobalancing of the rcu_node combining
+                       tree.  This is used by rcutorture, and might
+                       possibly be useful for architectures having high
+                       cache-to-cache transfer latencies.
+       rcutree.rcu_fanout_leaf= [KNL]
+                       Change the number of CPUs assigned to each
+                       leaf rcu_node structure.  Useful for very
+                       large systems, which will choose the value 64,
+                       and for NUMA systems with large remote-access
+                       latencies, which will choose a value aligned
+                       with the appropriate hardware boundaries.
+       rcutree.jiffies_till_sched_qs= [KNL]
+                       Set required age in jiffies for a
+                       given grace period before RCU starts
+                       soliciting quiescent-state help from
+                       rcu_note_context_switch().
+       rcutree.jiffies_till_first_fqs= [KNL]
+                       Set delay from grace-period initialization to
+                       first attempt to force quiescent states.
+                       Units are jiffies, minimum value is zero,
+                       and maximum value is HZ.
+       rcutree.jiffies_till_next_fqs= [KNL]
+                       Set delay between subsequent attempts to force
+                       quiescent states.  Units are jiffies, minimum
+                       value is one, and maximum value is HZ.
+       rcutree.kthread_prio=    [KNL,BOOT]
+                       Set the SCHED_FIFO priority of the RCU per-CPU
+                       kthreads (rcuc/N). This value is also used for
+                       the priority of the RCU boost threads (rcub/N)
+                       and for the RCU grace-period kthreads (rcu_bh,
+                       rcu_preempt, and rcu_sched). If RCU_BOOST is
+                       set, valid values are 1-99 and the default is 1
+                       (the least-favored priority).  Otherwise, when
+                       RCU_BOOST is not set, valid values are 0-99 and
+                       the default is zero (non-realtime operation).
+       rcutree.rcu_nocb_leader_stride= [KNL]
+                       Set the number of NOCB kthread groups, which
+                       defaults to the square root of the number of
+                       CPUs.  Larger numbers reduces the wakeup overhead
+                       on the per-CPU grace-period kthreads, but increases
+                       that same overhead on each group's leader.
+       rcutree.qhimark= [KNL]
+                       Set threshold of queued RCU callbacks beyond which
+                       batch limiting is disabled.
+       rcutree.qlowmark= [KNL]
+                       Set threshold of queued RCU callbacks below which
+                       batch limiting is re-enabled.
+       rcutree.rcu_idle_gp_delay= [KNL]
+                       Set wakeup interval for idle CPUs that have
+                       RCU callbacks (RCU_FAST_NO_HZ=y).
+       rcutree.rcu_idle_lazy_gp_delay= [KNL]
+                       Set wakeup interval for idle CPUs that have
+                       only "lazy" RCU callbacks (RCU_FAST_NO_HZ=y).
+                       Lazy RCU callbacks are those which RCU can
+                       prove do nothing more than free memory.
+       rcuperf.gp_exp= [KNL]
+                       Measure performance of expedited synchronous
+                       grace-period primitives.
+       rcuperf.holdoff= [KNL]
+                       Set test-start holdoff period.  The purpose of
+                       this parameter is to delay the start of the
+                       test until boot completes in order to avoid
+                       interference.
+       rcuperf.nreaders= [KNL]
+                       Set number of RCU readers.  The value -1 selects
+                       N, where N is the number of CPUs.  A value
+                       "n" less than -1 selects N-n+1, where N is again
+                       the number of CPUs.  For example, -2 selects N
+                       (the number of CPUs), -3 selects N+1, and so on.
+                       A value of "n" less than or equal to -N selects
+                       a single reader.
+       rcuperf.nwriters= [KNL]
+                       Set number of RCU writers.  The values operate
+                       the same as for rcuperf.nreaders.
+                       N, where N is the number of CPUs
+       rcuperf.perf_runnable= [BOOT]
+                       Start rcuperf running at boot time.
+       rcuperf.shutdown= [KNL]
+                       Shut the system down after performance tests
+                       complete.  This is useful for hands-off automated
+                       testing.
+       rcuperf.perf_type= [KNL]
+                       Specify the RCU implementation to test.
+       rcuperf.verbose= [KNL]
+                       Enable additional printk() statements.
+       rcutorture.cbflood_inter_holdoff= [KNL]
+                       Set holdoff time (jiffies) between successive
+                       callback-flood tests.
+       rcutorture.cbflood_intra_holdoff= [KNL]
+                       Set holdoff time (jiffies) between successive
+                       bursts of callbacks within a given callback-flood
+                       test.
+       rcutorture.cbflood_n_burst= [KNL]
+                       Set the number of bursts making up a given
+                       callback-flood test.  Set this to zero to
+                       disable callback-flood testing.
+       rcutorture.cbflood_n_per_burst= [KNL]
+                       Set the number of callbacks to be registered
+                       in a given burst of a callback-flood test.
+       rcutorture.fqs_duration= [KNL]
+                       Set duration of force_quiescent_state bursts
+                       in microseconds.
+       rcutorture.fqs_holdoff= [KNL]
+                       Set holdoff time within force_quiescent_state bursts
+                       in microseconds.
+       rcutorture.fqs_stutter= [KNL]
+                       Set wait time between force_quiescent_state bursts
+                       in seconds.
+       rcutorture.gp_cond= [KNL]
+                       Use conditional/asynchronous update-side
+                       primitives, if available.
+       rcutorture.gp_exp= [KNL]
+                       Use expedited update-side primitives, if available.
+       rcutorture.gp_normal= [KNL]
+                       Use normal (non-expedited) asynchronous
+                       update-side primitives, if available.
+       rcutorture.gp_sync= [KNL]
+                       Use normal (non-expedited) synchronous
+                       update-side primitives, if available.  If all
+                       of rcutorture.gp_cond=, rcutorture.gp_exp=,
+                       rcutorture.gp_normal=, and rcutorture.gp_sync=
+                       are zero, rcutorture acts as if is interpreted
+                       they are all non-zero.
+       rcutorture.n_barrier_cbs= [KNL]
+                       Set callbacks/threads for rcu_barrier() testing.
+       rcutorture.nfakewriters= [KNL]
+                       Set number of concurrent RCU writers.  These just
+                       stress RCU, they don't participate in the actual
+                       test, hence the "fake".
+       rcutorture.nreaders= [KNL]
+                       Set number of RCU readers.  The value -1 selects
+                       N-1, where N is the number of CPUs.  A value
+                       "n" less than -1 selects N-n-2, where N is again
+                       the number of CPUs.  For example, -2 selects N
+                       (the number of CPUs), -3 selects N+1, and so on.
+       rcutorture.object_debug= [KNL]
+                       Enable debug-object double-call_rcu() testing.
+       rcutorture.onoff_holdoff= [KNL]
+                       Set time (s) after boot for CPU-hotplug testing.
+       rcutorture.onoff_interval= [KNL]
+                       Set time (s) between CPU-hotplug operations, or
+                       zero to disable CPU-hotplug testing.
+       rcutorture.shuffle_interval= [KNL]
+                       Set task-shuffle interval (s).  Shuffling tasks
+                       allows some CPUs to go into dyntick-idle mode
+                       during the rcutorture test.
+       rcutorture.shutdown_secs= [KNL]
+                       Set time (s) after boot system shutdown.  This
+                       is useful for hands-off automated testing.
+       rcutorture.stall_cpu= [KNL]
+                       Duration of CPU stall (s) to test RCU CPU stall
+                       warnings, zero to disable.
+       rcutorture.stall_cpu_holdoff= [KNL]
+                       Time to wait (s) after boot before inducing stall.
+       rcutorture.stat_interval= [KNL]
+                       Time (s) between statistics printk()s.
+       rcutorture.stutter= [KNL]
+                       Time (s) to stutter testing, for example, specifying
+                       five seconds causes the test to run for five seconds,
+                       wait for five seconds, and so on.  This tests RCU's
+                       ability to transition abruptly to and from idle.
+       rcutorture.test_boost= [KNL]
+                       Test RCU priority boosting?  0=no, 1=maybe, 2=yes.
+                       "Maybe" means test if the RCU implementation
+                       under test support RCU priority boosting.
+       rcutorture.test_boost_duration= [KNL]
+                       Duration (s) of each individual boost test.
+       rcutorture.test_boost_interval= [KNL]
+                       Interval (s) between each boost test.
+       rcutorture.test_no_idle_hz= [KNL]
+                       Test RCU's dyntick-idle handling.  See also the
+                       rcutorture.shuffle_interval parameter.
+       rcutorture.torture_runnable= [BOOT]
+                       Start rcutorture running at boot time.
+       rcutorture.torture_type= [KNL]
+                       Specify the RCU implementation to test.
+       rcutorture.verbose= [KNL]
+                       Enable additional printk() statements.
+       rcupdate.rcu_cpu_stall_suppress= [KNL]
+                       Suppress RCU CPU stall warning messages.
+       rcupdate.rcu_cpu_stall_timeout= [KNL]
+                       Set timeout for RCU CPU stall warning messages.
+       rcupdate.rcu_expedited= [KNL]
+                       Use expedited grace-period primitives, for
+                       example, synchronize_rcu_expedited() instead
+                       of synchronize_rcu().  This reduces latency,
+                       but can increase CPU utilization, degrade
+                       real-time latency, and degrade energy efficiency.
+                       No effect on CONFIG_TINY_RCU kernels.
+       rcupdate.rcu_normal= [KNL]
+                       Use only normal grace-period primitives,
+                       for example, synchronize_rcu() instead of
+                       synchronize_rcu_expedited().  This improves
+                       real-time latency, CPU utilization, and
+                       energy efficiency, but can expose users to
+                       increased grace-period latency.  This parameter
+                       overrides rcupdate.rcu_expedited.  No effect on
+                       CONFIG_TINY_RCU kernels.
+       rcupdate.rcu_normal_after_boot= [KNL]
+                       Once boot has completed (that is, after
+                       rcu_end_inkernel_boot() has been invoked), use
+                       only normal grace-period primitives.  No effect
+                       on CONFIG_TINY_RCU kernels.
+       rcupdate.rcu_task_stall_timeout= [KNL]
+                       Set timeout in jiffies for RCU task stall warning
+                       messages.  Disable with a value less than or equal
+                       to zero.
+       rcupdate.rcu_self_test= [KNL]
+                       Run the RCU early boot self tests
+       rcupdate.rcu_self_test_bh= [KNL]
+                       Run the RCU bh early boot self tests
+       rcupdate.rcu_self_test_sched= [KNL]
+                       Run the RCU sched early boot self tests
+       rdinit=         [KNL]
+                       Format: <full_path>
+                       Run specified binary instead of /init from the ramdisk,
+                       used for early userspace startup. See initrd.
+       reboot=         [KNL]
+                       Format (x86 or x86_64):
+                               [w[arm] | c[old] | h[ard] | s[oft] | g[pio]] \
+                               [[,]s[mp]#### \
+                               [[,]b[ios] | a[cpi] | k[bd] | t[riple] | e[fi] | p[ci]] \
+                               [[,]f[orce]
+                       Where reboot_mode is one of warm (soft) or cold (hard) or gpio,
+                             reboot_type is one of bios, acpi, kbd, triple, efi, or pci,
+                             reboot_force is either force or not specified,
+                             reboot_cpu is s[mp]#### with #### being the processor
+                                       to be used for rebooting.
+       relax_domain_level=
+                       [KNL, SMP] Set scheduler's default relax_domain_level.
+                       See Documentation/cgroup-v1/cpusets.txt.
+       relative_sleep_states=
+                       [SUSPEND] Use sleep state labeling where the deepest
+                       state available other than hibernation is always "mem".
+                       Format: { "0" | "1" }
+                       0 -- Traditional sleep state labels.
+                       1 -- Relative sleep state labels.
+       reserve=        [KNL,BUGS] Force the kernel to ignore some iomem area
+       reservetop=     [X86-32]
+                       Format: nn[KMG]
+                       Reserves a hole at the top of the kernel virtual
+                       address space.
+       reservelow=     [X86]
+                       Format: nn[K]
+                       Set the amount of memory to reserve for BIOS at
+                       the bottom of the address space.
+       reset_devices   [KNL] Force drivers to reset the underlying device
+                       during initialization.
+       resume=         [SWSUSP]
+                       Specify the partition device for software suspend
+                       Format:
+                       {/dev/<dev> | PARTUUID=<uuid> | <int>:<int> | <hex>}
+       resume_offset=  [SWSUSP]
+                       Specify the offset from the beginning of the partition
+                       given by "resume=" at which the swap header is located,
+                       in <PAGE_SIZE> units (needed only for swap files).
+                       See  Documentation/power/swsusp-and-swap-files.txt
+       resumedelay=    [HIBERNATION] Delay (in seconds) to pause before attempting to
+                       read the resume files
+       resumewait      [HIBERNATION] Wait (indefinitely) for resume device to show up.
+                       Useful for devices that are detected asynchronously
+                       (e.g. USB and MMC devices).
+       hibernate=      [HIBERNATION]
+               noresume        Don't check if there's a hibernation image
+                               present during boot.
+               nocompress      Don't compress/decompress hibernation images.
+               no              Disable hibernation and resume.
+               protect_image   Turn on image protection during restoration
+                               (that will set all pages holding image data
+                               during restoration read-only).
+       retain_initrd   [RAM] Keep initrd memory after extraction
+       rfkill.default_state=
+               0       "airplane mode".  All wifi, bluetooth, wimax, gps, fm,
+                       etc. communication is blocked by default.
+               1       Unblocked.
+       rfkill.master_switch_mode=
+               0       The "airplane mode" button does nothing.
+               1       The "airplane mode" button toggles between everything
+                       blocked and the previous configuration.
+               2       The "airplane mode" button toggles between everything
+                       blocked and everything unblocked.
+       rhash_entries=  [KNL,NET]
+                       Set number of hash buckets for route cache
+       ro              [KNL] Mount root device read-only on boot
+       rodata=         [KNL]
+               on      Mark read-only kernel memory as read-only (default).
+               off     Leave read-only kernel memory writable for debugging.
+       rockchip.usb_uart
+                       Enable the uart passthrough on the designated usb port
+                       on Rockchip SoCs. When active, the signals of the
+                       debug-uart get routed to the D+ and D- pins of the usb
+                       port and the regular usb controller gets disabled.
+       root=           [KNL] Root filesystem
+                       See name_to_dev_t comment in init/do_mounts.c.
+       rootdelay=      [KNL] Delay (in seconds) to pause before attempting to
+                       mount the root filesystem
+       rootflags=      [KNL] Set root filesystem mount option string
+       rootfstype=     [KNL] Set root filesystem type
+       rootwait        [KNL] Wait (indefinitely) for root device to show up.
+                       Useful for devices that are detected asynchronously
+                       (e.g. USB and MMC devices).
+       rproc_mem=nn[KMG][@address]
+                       [KNL,ARM,CMA] Remoteproc physical memory block.
+                       Memory area to be used by remote processor image,
+                       managed by CMA.
+       rw              [KNL] Mount root device read-write on boot
+       S               [KNL] Run init in single mode
+       s390_iommu=     [HW,S390]
+                       Set s390 IOTLB flushing mode
+               strict
+                       With strict flushing every unmap operation will result in
+                       an IOTLB flush. Default is lazy flushing before reuse,
+                       which is faster.
+       sa1100ir        [NET]
+                       See drivers/net/irda/sa1100_ir.c.
+       sbni=           [NET] Granch SBNI12 leased line adapter
+       sched_debug     [KNL] Enables verbose scheduler debug messages.
+       schedstats=     [KNL,X86] Enable or disable scheduled statistics.
+                       Allowed values are enable and disable. This feature
+                       incurs a small amount of overhead in the scheduler
+                       but is useful for debugging and performance tuning.
+       skew_tick=      [KNL] Offset the periodic timer tick per cpu to mitigate
+                       xtime_lock contention on larger systems, and/or RCU lock
+                       contention on all systems with CONFIG_MAXSMP set.
+                       Format: { "0" | "1" }
+                       0 -- disable. (may be 1 via CONFIG_CMDLINE="skew_tick=1"
+                       1 -- enable.
+                       Note: increases power consumption, thus should only be
+                       enabled if running jitter sensitive (HPC/RT) workloads.
+       security=       [SECURITY] Choose a security module to enable at boot.
+                       If this boot parameter is not specified, only the first
+                       security module asking for security registration will be
+                       loaded. An invalid security module name will be treated
+                       as if no module has been chosen.
+       selinux=        [SELINUX] Disable or enable SELinux at boot time.
+                       Format: { "0" | "1" }
+                       See security/selinux/Kconfig help text.
+                       0 -- disable.
+                       1 -- enable.
+                       Default value is set via kernel config option.
+                       If enabled at boot time, /selinux/disable can be used
+                       later to disable prior to initial policy load.
+       apparmor=       [APPARMOR] Disable or enable AppArmor at boot time
+                       Format: { "0" | "1" }
+                       See security/apparmor/Kconfig help text
+                       0 -- disable.
+                       1 -- enable.
+                       Default value is set via kernel config option.
+       serialnumber    [BUGS=X86-32]
+       shapers=        [NET]
+                       Maximal number of shapers.
+       simeth=         [IA-64]
+       simscsi=
+       slram=          [HW,MTD]
+       slab_nomerge    [MM]
+                       Disable merging of slabs with similar size. May be
+                       necessary if there is some reason to distinguish
+                       allocs to different slabs. Debug options disable
+                       merging on their own.
+                       For more information see Documentation/vm/slub.txt.
+       slab_max_order= [MM, SLAB]
+                       Determines the maximum allowed order for slabs.
+                       A high setting may cause OOMs due to memory
+                       fragmentation.  Defaults to 1 for systems with
+                       more than 32MB of RAM, 0 otherwise.
+       slub_debug[=options[,slabs]]    [MM, SLUB]
+                       Enabling slub_debug allows one to determine the
+                       culprit if slab objects become corrupted. Enabling
+                       slub_debug can create guard zones around objects and
+                       may poison objects when not in use. Also tracks the
+                       last alloc / free. For more information see
+                       Documentation/vm/slub.txt.
+       slub_max_order= [MM, SLUB]
+                       Determines the maximum allowed order for slabs.
+                       A high setting may cause OOMs due to memory
+                       fragmentation. For more information see
+                       Documentation/vm/slub.txt.
+       slub_min_objects=       [MM, SLUB]
+                       The minimum number of objects per slab. SLUB will
+                       increase the slab order up to slub_max_order to
+                       generate a sufficiently large slab able to contain
+                       the number of objects indicated. The higher the number
+                       of objects the smaller the overhead of tracking slabs
+                       and the less frequently locks need to be acquired.
+                       For more information see Documentation/vm/slub.txt.
+       slub_min_order= [MM, SLUB]
+                       Determines the minimum page order for slabs. Must be
+                       lower than slub_max_order.
+                       For more information see Documentation/vm/slub.txt.
+       slub_nomerge    [MM, SLUB]
+                       Same with slab_nomerge. This is supported for legacy.
+                       See slab_nomerge for more information.
+       smart2=         [HW]
+                       Format: <io1>[,<io2>[,...,<io8>]]
+       smsc-ircc2.nopnp        [HW] Don't use PNP to discover SMC devices
+       smsc-ircc2.ircc_cfg=    [HW] Device configuration I/O port
+       smsc-ircc2.ircc_sir=    [HW] SIR base I/O port
+       smsc-ircc2.ircc_fir=    [HW] FIR base I/O port
+       smsc-ircc2.ircc_irq=    [HW] IRQ line
+       smsc-ircc2.ircc_dma=    [HW] DMA channel
+       smsc-ircc2.ircc_transceiver= [HW] Transceiver type:
+                               0: Toshiba Satellite 1800 (GP data pin select)
+                               1: Fast pin select (default)
+                               2: ATC IRMode
+       smt             [KNL,S390] Set the maximum number of threads (logical
+                       CPUs) to use per physical CPU on systems capable of
+                       symmetric multithreading (SMT). Will be capped to the
+                       actual hardware limit.
+                       Format: <integer>
+                       Default: -1 (no limit)
+       softlockup_panic=
+                       [KNL] Should the soft-lockup detector generate panics.
+                       Format: <integer>
+       softlockup_all_cpu_backtrace=
+                       [KNL] Should the soft-lockup detector generate
+                       backtraces on all cpus.
+                       Format: <integer>
+       sonypi.*=       [HW] Sony Programmable I/O Control Device driver
+                       See Documentation/laptops/sonypi.txt
+       spia_io_base=   [HW,MTD]
+       spia_fio_base=
+       spia_pedr=
+       spia_peddr=
+       stacktrace      [FTRACE]
+                       Enabled the stack tracer on boot up.
+       stacktrace_filter=[function-list]
+                       [FTRACE] Limit the functions that the stack tracer
+                       will trace at boot up. function-list is a comma separated
+                       list of functions. This list can be changed at run
+                       time by the stack_trace_filter file in the debugfs
+                       tracing directory. Note, this enables stack tracing
+                       and the stacktrace above is not needed.
+       sti=            [PARISC,HW]
+                       Format: <num>
+                       Set the STI (builtin display/keyboard on the HP-PARISC
+                       machines) console (graphic card) which should be used
+                       as the initial boot-console.
+                       See also comment in drivers/video/console/sticore.c.
+       sti_font=       [HW]
+                       See comment in drivers/video/console/sticore.c.
+       stifb=          [HW]
+                       Format: bpp:<bpp1>[:<bpp2>[:<bpp3>...]]
+       sunrpc.min_resvport=
+       sunrpc.max_resvport=
+                       [NFS,SUNRPC]
+                       SunRPC servers often require that client requests
+                       originate from a privileged port (i.e. a port in the
+                       range 0 < portnr < 1024).
+                       An administrator who wishes to reserve some of these
+                       ports for other uses may adjust the range that the
+                       kernel's sunrpc client considers to be privileged
+                       using these two parameters to set the minimum and
+                       maximum port values.
+       sunrpc.svc_rpc_per_connection_limit=
+                       [NFS,SUNRPC]
+                       Limit the number of requests that the server will
+                       process in parallel from a single connection.
+                       The default value is 0 (no limit).
+       sunrpc.pool_mode=
+                       [NFS]
+                       Control how the NFS server code allocates CPUs to
+                       service thread pools.  Depending on how many NICs
+                       you have and where their interrupts are bound, this
+                       option will affect which CPUs will do NFS serving.
+                       Note: this parameter cannot be changed while the
+                       NFS server is running.
+                       auto        the server chooses an appropriate mode
+                                   automatically using heuristics
+                       global      a single global pool contains all CPUs
+                       percpu      one pool for each CPU
+                       pernode     one pool for each NUMA node (equivalent
+                                   to global on non-NUMA machines)
+       sunrpc.tcp_slot_table_entries=
+       sunrpc.udp_slot_table_entries=
+                       [NFS,SUNRPC]
+                       Sets the upper limit on the number of simultaneous
+                       RPC calls that can be sent from the client to a
+                       server. Increasing these values may allow you to
+                       improve throughput, but will also increase the
+                       amount of memory reserved for use by the client.
+       suspend.pm_test_delay=
+                       [SUSPEND]
+                       Sets the number of seconds to remain in a suspend test
+                       mode before resuming the system (see
+                       /sys/power/pm_test). Only available when CONFIG_PM_DEBUG
+                       is set. Default value is 5.
+       swapaccount=[0|1]
+                       [KNL] Enable accounting of swap in memory resource
+                       controller if no parameter or 1 is given or disable
+                       it if 0 is given (See Documentation/cgroup-v1/memory.txt)
+       swiotlb=        [ARM,IA-64,PPC,MIPS,X86]
+                       Format: { <int> | force }
+                       <int> -- Number of I/O TLB slabs
+                       force -- force using of bounce buffers even if they
+                                wouldn't be automatically used by the kernel
+       switches=       [HW,M68k]
+       sysfs.deprecated=0|1 [KNL]
+                       Enable/disable old style sysfs layout for old udev
+                       on older distributions. When this option is enabled
+                       very new udev will not work anymore. When this option
+                       is disabled (or CONFIG_SYSFS_DEPRECATED not compiled)
+                       in older udev will not work anymore.
+                       Default depends on CONFIG_SYSFS_DEPRECATED_V2 set in
+                       the kernel configuration.
+       sysrq_always_enabled
+                       [KNL]
+                       Ignore sysrq setting - this boot parameter will
+                       neutralize any effect of /proc/sys/kernel/sysrq.
+                       Useful for debugging.
+       tcpmhash_entries= [KNL,NET]
+                       Set the number of tcp_metrics_hash slots.
+                       Default value is 8192 or 16384 depending on total
+                       ram pages. This is used to specify the TCP metrics
+                       cache size. See Documentation/networking/ip-sysctl.txt
+                       "tcp_no_metrics_save" section for more details.
+       tdfx=           [HW,DRM]
+       test_suspend=   [SUSPEND][,N]
+                       Specify "mem" (for Suspend-to-RAM) or "standby" (for
+                       standby suspend) or "freeze" (for suspend type freeze)
+                       as the system sleep state during system startup with
+                       the optional capability to repeat N number of times.
+                       The system is woken from this state using a
+                       wakeup-capable RTC alarm.
+       thash_entries=  [KNL,NET]
+                       Set number of hash buckets for TCP connection
+       thermal.act=    [HW,ACPI]
+                       -1: disable all active trip points in all thermal zones
+                       <degrees C>: override all lowest active trip points
+       thermal.crt=    [HW,ACPI]
+                       -1: disable all critical trip points in all thermal zones
+                       <degrees C>: override all critical trip points
+       thermal.nocrt=  [HW,ACPI]
+                       Set to disable actions on ACPI thermal zone
+                       critical and hot trip points.
+       thermal.off=    [HW,ACPI]
+                       1: disable ACPI thermal control
+       thermal.psv=    [HW,ACPI]
+                       -1: disable all passive trip points
+                       <degrees C>: override all passive trip points to this
+                       value
+       thermal.tzp=    [HW,ACPI]
+                       Specify global default ACPI thermal zone polling rate
+                       <deci-seconds>: poll all this frequency
+                       0: no polling (default)
+       threadirqs      [KNL]
+                       Force threading of all interrupt handlers except those
+                       marked explicitly IRQF_NO_THREAD.
+       tmem            [KNL,XEN]
+                       Enable the Transcendent memory driver if built-in.
+       tmem.cleancache=0|1 [KNL, XEN]
+                       Default is on (1). Disable the usage of the cleancache
+                       API to send anonymous pages to the hypervisor.
+       tmem.frontswap=0|1 [KNL, XEN]
+                       Default is on (1). Disable the usage of the frontswap
+                       API to send swap pages to the hypervisor. If disabled
+                       the selfballooning and selfshrinking are force disabled.
+       tmem.selfballooning=0|1 [KNL, XEN]
+                       Default is on (1). Disable the driving of swap pages
+                       to the hypervisor.
+       tmem.selfshrinking=0|1 [KNL, XEN]
+                       Default is on (1). Partial swapoff that immediately
+                       transfers pages from Xen hypervisor back to the
+                       kernel based on different criteria.
+       topology=       [S390]
+                       Format: {off | on}
+                       Specify if the kernel should make use of the cpu
+                       topology information if the hardware supports this.
+                       The scheduler will make use of this information and
+                       e.g. base its process migration decisions on it.
+                       Default is on.
+       topology_updates= [KNL, PPC, NUMA]
+                       Format: {off}
+                       Specify if the kernel should ignore (off)
+                       topology updates sent by the hypervisor to this
+                       LPAR.
+       tp720=          [HW,PS2]
+       tpm_suspend_pcr=[HW,TPM]
+                       Format: integer pcr id
+                       Specify that at suspend time, the tpm driver
+                       should extend the specified pcr with zeros,
+                       as a workaround for some chips which fail to
+                       flush the last written pcr on TPM_SaveState.
+                       This will guarantee that all the other pcrs
+                       are saved.
+       trace_buf_size=nn[KMG]
+                       [FTRACE] will set tracing buffer size on each cpu.
+       trace_event=[event-list]
+                       [FTRACE] Set and start specified trace events in order
+                       to facilitate early boot debugging. The event-list is a
+                       comma separated list of trace events to enable. See
+                       also Documentation/trace/events.txt
+       trace_options=[option-list]
+                       [FTRACE] Enable or disable tracer options at boot.
+                       The option-list is a comma delimited list of options
+                       that can be enabled or disabled just as if you were
+                       to echo the option name into
+                           /sys/kernel/debug/tracing/trace_options
+                       For example, to enable stacktrace option (to dump the
+                       stack trace of each event), add to the command line:
+                             trace_options=stacktrace
+                       See also Documentation/trace/ftrace.txt "trace options"
+                       section.
+       tp_printk[FTRACE]
+                       Have the tracepoints sent to printk as well as the
+                       tracing ring buffer. This is useful for early boot up
+                       where the system hangs or reboots and does not give the
+                       option for reading the tracing buffer or performing a
+                       ftrace_dump_on_oops.
+                       To turn off having tracepoints sent to printk,
+                        echo 0 > /proc/sys/kernel/tracepoint_printk
+                       Note, echoing 1 into this file without the
+                       tracepoint_printk kernel cmdline option has no effect.
+                       ** CAUTION **
+                       Having tracepoints sent to printk() and activating high
+                       frequency tracepoints such as irq or sched, can cause
+                       the system to live lock.
+       traceoff_on_warning
+                       [FTRACE] enable this option to disable tracing when a
+                       warning is hit. This turns off "tracing_on". Tracing can
+                       be enabled again by echoing '1' into the "tracing_on"
+                       file located in /sys/kernel/debug/tracing/
+                       This option is useful, as it disables the trace before
+                       the WARNING dump is called, which prevents the trace to
+                       be filled with content caused by the warning output.
+                       This option can also be set at run time via the sysctl
+                       option:  kernel/traceoff_on_warning
+       transparent_hugepage=
+                       [KNL]
+                       Format: [always|madvise|never]
+                       Can be used to control the default behavior of the system
+                       with respect to transparent hugepages.
+                       See Documentation/vm/transhuge.txt for more details.
+       tsc=            Disable clocksource stability checks for TSC.
+                       Format: <string>
+                       [x86] reliable: mark tsc clocksource as reliable, this
+                       disables clocksource verification at runtime, as well
+                       as the stability checks done at bootup. Used to enable
+                       high-resolution timer mode on older hardware, and in
+                       virtualized environment.
+                       [x86] noirqtime: Do not use TSC to do irq accounting.
+                       Used to run time disable IRQ_TIME_ACCOUNTING on any
+                       platforms where RDTSC is slow and this accounting
+                       can add overhead.
+       turbografx.map[2|3]=    [HW,JOY]
+                       TurboGraFX parallel port interface
+                       Format:
+                       <port#>,<js1>,<js2>,<js3>,<js4>,<js5>,<js6>,<js7>
+                       See also Documentation/input/joystick-parport.txt
+       udbg-immortal   [PPC] When debugging early kernel crashes that
+                       happen after console_init() and before a proper
+                       console driver takes over, this boot options might
+                       help "seeing" what's going on.
+       uhash_entries=  [KNL,NET]
+                       Set number of hash buckets for UDP/UDP-Lite connections
+       uhci-hcd.ignore_oc=
+                       [USB] Ignore overcurrent events (default N).
+                       Some badly-designed motherboards generate lots of
+                       bogus events, for ports that aren't wired to
+                       anything.  Set this parameter to avoid log spamming.
+                       Note that genuine overcurrent events won't be
+                       reported either.
+       unknown_nmi_panic
+                       [X86] Cause panic on unknown NMI.
+       usbcore.authorized_default=
+                       [USB] Default USB device authorization:
+                       (default -1 = authorized except for wireless USB,
+                       0 = not authorized, 1 = authorized)
+       usbcore.autosuspend=
+                       [USB] The autosuspend time delay (in seconds) used
+                       for newly-detected USB devices (default 2).  This
+                       is the time required before an idle device will be
+                       autosuspended.  Devices for which the delay is set
+                       to a negative value won't be autosuspended at all.
+       usbcore.usbfs_snoop=
+                       [USB] Set to log all usbfs traffic (default 0 = off).
+       usbcore.usbfs_snoop_max=
+                       [USB] Maximum number of bytes to snoop in each URB
+                       (default = 65536).
+       usbcore.blinkenlights=
+                       [USB] Set to cycle leds on hubs (default 0 = off).
+       usbcore.old_scheme_first=
+                       [USB] Start with the old device initialization
+                       scheme (default 0 = off).
+       usbcore.usbfs_memory_mb=
+                       [USB] Memory limit (in MB) for buffers allocated by
+                       usbfs (default = 16, 0 = max = 2047).
+       usbcore.use_both_schemes=
+                       [USB] Try the other device initialization scheme
+                       if the first one fails (default 1 = enabled).
+       usbcore.initial_descriptor_timeout=
+                       [USB] Specifies timeout for the initial 64-byte
+                         USB_REQ_GET_DESCRIPTOR request in milliseconds
+                       (default 5000 = 5.0 seconds).
+       usbcore.nousb   [USB] Disable the USB subsystem
+       usbhid.mousepoll=
+                       [USBHID] The interval which mice are to be polled at.
+       usb-storage.delay_use=
+                       [UMS] The delay in seconds before a new device is
+                       scanned for Logical Units (default 1).
+       usb-storage.quirks=
+                       [UMS] A list of quirks entries to supplement or
+                       override the built-in unusual_devs list.  List
+                       entries are separated by commas.  Each entry has
+                       the form VID:PID:Flags where VID and PID are Vendor
+                       and Product ID values (4-digit hex numbers) and
+                       Flags is a set of characters, each corresponding
+                       to a common usb-storage quirk flag as follows:
+                               a = SANE_SENSE (collect more than 18 bytes
+                                       of sense data);
+                               b = BAD_SENSE (don't collect more than 18
+                                       bytes of sense data);
+                               c = FIX_CAPACITY (decrease the reported
+                                       device capacity by one sector);
+                               d = NO_READ_DISC_INFO (don't use
+                                       READ_DISC_INFO command);
+                               e = NO_READ_CAPACITY_16 (don't use
+                                       READ_CAPACITY_16 command);
+                               f = NO_REPORT_OPCODES (don't use report opcodes
+                                       command, uas only);
+                               g = MAX_SECTORS_240 (don't transfer more than
+                                       240 sectors at a time, uas only);
+                               h = CAPACITY_HEURISTICS (decrease the
+                                       reported device capacity by one
+                                       sector if the number is odd);
+                               i = IGNORE_DEVICE (don't bind to this
+                                       device);
+                               j = NO_REPORT_LUNS (don't use report luns
+                                       command, uas only);
+                               l = NOT_LOCKABLE (don't try to lock and
+                                       unlock ejectable media);
+                               m = MAX_SECTORS_64 (don't transfer more
+                                       than 64 sectors = 32 KB at a time);
+                               n = INITIAL_READ10 (force a retry of the
+                                       initial READ(10) command);
+                               o = CAPACITY_OK (accept the capacity
+                                       reported by the device);
+                               p = WRITE_CACHE (the device cache is ON
+                                       by default);
+                               r = IGNORE_RESIDUE (the device reports
+                                       bogus residue values);
+                               s = SINGLE_LUN (the device has only one
+                                       Logical Unit);
+                               t = NO_ATA_1X (don't allow ATA(12) and ATA(16)
+                                       commands, uas only);
+                               u = IGNORE_UAS (don't bind to the uas driver);
+                               w = NO_WP_DETECT (don't test whether the
+                                       medium is write-protected).
+                               y = ALWAYS_SYNC (issue a SYNCHRONIZE_CACHE
+                                       even if the device claims no cache)
+                       Example: quirks=0419:aaf5:rl,0421:0433:rc
+       user_debug=     [KNL,ARM]
+                       Format: <int>
+                       See arch/arm/Kconfig.debug help text.
+                                1 - undefined instruction events
+                                2 - system calls
+                                4 - invalid data aborts
+                                8 - SIGSEGV faults
+                               16 - SIGBUS faults
+                       Example: user_debug=31
+       userpte=
+                       [X86] Flags controlling user PTE allocations.
+                               nohigh = do not allocate PTE pages in
+                                       HIGHMEM regardless of setting
+                                       of CONFIG_HIGHPTE.
+       vdso=           [X86,SH]
+                       On X86_32, this is an alias for vdso32=.  Otherwise:
+                       vdso=1: enable VDSO (the default)
+                       vdso=0: disable VDSO mapping
+       vdso32=         [X86] Control the 32-bit vDSO
+                       vdso32=1: enable 32-bit VDSO
+                       vdso32=0 or vdso32=2: disable 32-bit VDSO
+                       See the help text for CONFIG_COMPAT_VDSO for more
+                       details.  If CONFIG_COMPAT_VDSO is set, the default is
+                       vdso32=0; otherwise, the default is vdso32=1.
+                       For compatibility with older kernels, vdso32=2 is an
+                       alias for vdso32=0.
+                       Try vdso32=0 if you encounter an error that says:
+                       dl_main: Assertion `(void *) ph->p_vaddr == _rtld_local._dl_sysinfo_dso' failed!
+       vector=         [IA-64,SMP]
+                       vector=percpu: enable percpu vector domain
+       video=          [FB] Frame buffer configuration
+                       See Documentation/fb/modedb.txt.
+       video.brightness_switch_enabled= [0,1]
+                       If set to 1, on receiving an ACPI notify event
+                       generated by hotkey, video driver will adjust brightness
+                       level and then send out the event to user space through
+                       the allocated input device; If set to 0, video driver
+                       will only send out the event without touching backlight
+                       brightness level.
+                       default: 1
+       virtio_mmio.device=
+                       [VMMIO] Memory mapped virtio (platform) device.
+                               <size>@<baseaddr>:<irq>[:<id>]
+                       where:
+                               <size>     := size (can use standard suffixes
+                                               like K, M and G)
+                               <baseaddr> := physical base address
+                               <irq>      := interrupt number (as passed to
+                                               request_irq())
+                               <id>       := (optional) platform device id
+                       example:
+                               virtio_mmio.device=1K@0x100b0000:48:7
+                       Can be used multiple times for multiple devices.
+       vga=            [BOOT,X86-32] Select a particular video mode
+                       See Documentation/x86/boot.txt and
+                       Documentation/svga.txt.
+                       Use vga=ask for menu.
+                       This is actually a boot loader parameter; the value is
+                       passed to the kernel using a special protocol.
+       vmalloc=nn[KMG] [KNL,BOOT] Forces the vmalloc area to have an exact
+                       size of <nn>. This can be used to increase the
+                       minimum size (128MB on x86). It can also be used to
+                       decrease the size and leave more room for directly
+                       mapped kernel RAM.
+       vmhalt=         [KNL,S390] Perform z/VM CP command after system halt.
+                       Format: <command>
+       vmpanic=        [KNL,S390] Perform z/VM CP command after kernel panic.
+                       Format: <command>
+       vmpoff=         [KNL,S390] Perform z/VM CP command after power off.
+                       Format: <command>
+       vsyscall=       [X86-64]
+                       Controls the behavior of vsyscalls (i.e. calls to
+                       fixed addresses of 0xffffffffff600x00 from legacy
+                       code).  Most statically-linked binaries and older
+                       versions of glibc use these calls.  Because these
+                       functions are at fixed addresses, they make nice
+                       targets for exploits that can control RIP.
+                       emulate     [default] Vsyscalls turn into traps and are
+                                   emulated reasonably safely.
+                       native      Vsyscalls are native syscall instructions.
+                                   This is a little bit faster than trapping
+                                   and makes a few dynamic recompilers work
+                                   better than they would in emulation mode.
+                                   It also makes exploits much easier to write.
+                       none        Vsyscalls don't work at all.  This makes
+                                   them quite hard to use for exploits but
+                                   might break your system.
+       vt.color=       [VT] Default text color.
+                       Format: 0xYX, X = foreground, Y = background.
+                       Default: 0x07 = light gray on black.
+       vt.cur_default= [VT] Default cursor shape.
+                       Format: 0xCCBBAA, where AA, BB, and CC are the same as
+                       the parameters of the <Esc>[?A;B;Cc escape sequence;
+                       see VGA-softcursor.txt. Default: 2 = underline.
+       vt.default_blu= [VT]
+                       Format: <blue0>,<blue1>,<blue2>,...,<blue15>
+                       Change the default blue palette of the console.
+                       This is a 16-member array composed of values
+                       ranging from 0-255.
+       vt.default_grn= [VT]
+                       Format: <green0>,<green1>,<green2>,...,<green15>
+                       Change the default green palette of the console.
+                       This is a 16-member array composed of values
+                       ranging from 0-255.
+       vt.default_red= [VT]
+                       Format: <red0>,<red1>,<red2>,...,<red15>
+                       Change the default red palette of the console.
+                       This is a 16-member array composed of values
+                       ranging from 0-255.
+       vt.default_utf8=
+                       [VT]
+                       Format=<0|1>
+                       Set system-wide default UTF-8 mode for all tty's.
+                       Default is 1, i.e. UTF-8 mode is enabled for all
+                       newly opened terminals.
+       vt.global_cursor_default=
+                       [VT]
+                       Format=<-1|0|1>
+                       Set system-wide default for whether a cursor
+                       is shown on new VTs. Default is -1,
+                       i.e. cursors will be created by default unless
+                       overridden by individual drivers. 0 will hide
+                       cursors, 1 will display them.
+       vt.italic=      [VT] Default color for italic text; 0-15.
+                       Default: 2 = green.
+       vt.underline=   [VT] Default color for underlined text; 0-15.
+                       Default: 3 = cyan.
+       watchdog timers [HW,WDT] For information on watchdog timers,
+                       see Documentation/watchdog/watchdog-parameters.txt
+                       or other driver-specific files in the
+                       Documentation/watchdog/ directory.
+       workqueue.watchdog_thresh=
+                       If CONFIG_WQ_WATCHDOG is configured, workqueue can
+                       warn stall conditions and dump internal state to
+                       help debugging.  0 disables workqueue stall
+                       detection; otherwise, it's the stall threshold
+                       duration in seconds.  The default value is 30 and
+                       it can be updated at runtime by writing to the
+                       corresponding sysfs file.
+       workqueue.disable_numa
+                       By default, all work items queued to unbound
+                       workqueues are affine to the NUMA nodes they're
+                       issued on, which results in better behavior in
+                       general.  If NUMA affinity needs to be disabled for
+                       whatever reason, this option can be used.  Note
+                       that this also can be controlled per-workqueue for
+                       workqueues visible under /sys/bus/workqueue/.
+       workqueue.power_efficient
+                       Per-cpu workqueues are generally preferred because
+                       they show better performance thanks to cache
+                       locality; unfortunately, per-cpu workqueues tend to
+                       be more power hungry than unbound workqueues.
+                       Enabling this makes the per-cpu workqueues which
+                       were observed to contribute significantly to power
+                       consumption unbound, leading to measurably lower
+                       power usage at the cost of small performance
+                       overhead.
+                       The default value of this parameter is determined by
+                       the config option CONFIG_WQ_POWER_EFFICIENT_DEFAULT.
+       workqueue.debug_force_rr_cpu
+                       Workqueue used to implicitly guarantee that work
+                       items queued without explicit CPU specified are put
+                       on the local CPU.  This guarantee is no longer true
+                       and while local CPU is still preferred work items
+                       may be put on foreign CPUs.  This debug option
+                       forces round-robin CPU selection to flush out
+                       usages which depend on the now broken guarantee.
+                       When enabled, memory and cache locality will be
+                       impacted.
+       x2apic_phys     [X86-64,APIC] Use x2apic physical mode instead of
+                       default x2apic cluster mode on platforms
+                       supporting x2apic.
+       x86_intel_mid_timer= [X86-32,APBT]
+                       Choose timer option for x86 Intel MID platform.
+                       Two valid options are apbt timer only and lapic timer
+                       plus one apbt timer for broadcast timer.
+                       x86_intel_mid_timer=apbt_only | lapic_and_apbt
+       xen_512gb_limit         [KNL,X86-64,XEN]
+                       Restricts the kernel running paravirtualized under Xen
+                       to use only up to 512 GB of RAM. The reason to do so is
+                       crash analysis tools and Xen tools for doing domain
+                       save/restore/migration must be enabled to handle larger
+                       domains.
+       xen_emul_unplug=                [HW,X86,XEN]
+                       Unplug Xen emulated devices
+                       Format: [unplug0,][unplug1]
+                       ide-disks -- unplug primary master IDE devices
+                       aux-ide-disks -- unplug non-primary-master IDE devices
+                       nics -- unplug network devices
+                       all -- unplug all emulated devices (NICs and IDE disks)
+                       unnecessary -- unplugging emulated devices is
+                               unnecessary even if the host did not respond to
+                               the unplug protocol
+                       never -- do not unplug even if version check succeeds
+       xen_nopvspin    [X86,XEN]
+                       Disables the ticketlock slowpath using Xen PV
+                       optimizations.
+       xen_nopv        [X86]
+                       Disables the PV optimizations forcing the HVM guest to
+                       run as generic HVM guest with no PV drivers.
+       xirc2ps_cs=     [NET,PCMCIA]
+                       Format:
+                       <irq>,<irq_mask>,<io>,<full_duplex>,<do_sound>,<lockup_hack>[,<irq2>[,<irq3>[,<irq4>]]]
Simple merge
Simple merge
diff --cc MAINTAINERS
Simple merge
Simple merge
Simple merge
diff --cc init/Kconfig
Simple merge
diff --cc init/main.c
Simple merge
index e40a0715f422f749908945e9bf9ebac8c3fe8bbd,1a9fa51b693b3f64aed71ba04655f896cc7fa9ed..e6327d102184a8aa6ac443e69b0bb0a9ad6800f8
@@@ -13,23 -13,8 +13,23 @@@ config PRINTK_TIM
          be included, not that the timestamp is recorded.
  
          The behavior is also controlled by the kernel command line
-         parameter printk.time=1. See Documentation/kernel-parameters.txt
+         parameter printk.time=1. See Documentation/admin-guide/kernel-parameters.rst
  
 +config CONSOLE_LOGLEVEL_DEFAULT
 +      int "Default console loglevel (1-15)"
 +      range 1 15
 +      default "7"
 +      help
 +        Default loglevel to determine what will be printed on the console.
 +
 +        Setting a default here is equivalent to passing in loglevel=<x> in
 +        the kernel bootargs. loglevel=<x> continues to override whatever
 +        value is specified here as well.
 +
 +        Note: This does not affect the log level of un-prefixed prink()
 +        usage in the kernel. That is controlled by the MESSAGE_LOGLEVEL_DEFAULT
 +        option.
 +
  config MESSAGE_LOGLEVEL_DEFAULT
        int "Default message log level (1-7)"
        range 1 7
Simple merge