#include "linux/seq_file.h"
#include "linux/delay.h"
#include "linux/module.h"
+#include "linux/utsname.h"
#include "asm/page.h"
#include "asm/pgtable.h"
#include "asm/ptrace.h"
#include "asm/setup.h"
#include "ubd_user.h"
#include "asm/current.h"
-#include "user_util.h"
#include "kern_util.h"
+#include "as-layout.h"
+#include "arch.h"
#include "kern.h"
#include "mem_user.h"
#include "mem.h"
-#include "umid.h"
#include "initrd.h"
#include "init.h"
#include "os.h"
#define DEFAULT_COMMAND_LINE "root=98:0"
-/* Changed in linux_main and setup_arch, which run before SMP is started */
-static char command_line[COMMAND_LINE_SIZE] = { 0 };
+/* Changed in add_arg and setup_arch, which run before SMP is started */
+static char __initdata command_line[COMMAND_LINE_SIZE] = { 0 };
-static void add_arg(char *arg)
+static void __init add_arg(char *arg)
{
if (strlen(command_line) + strlen(arg) + 1 > COMMAND_LINE_SIZE) {
printf("add_arg: Too many command line arguments!\n");
strcat(command_line, arg);
}
-struct cpuinfo_um boot_cpu_data = {
+/*
+ * These fields are initialized at boot time and not changed.
+ * XXX This structure is used only in the non-SMP case. Maybe this
+ * should be moved to smp.c.
+ */
+struct cpuinfo_um boot_cpu_data = {
.loops_per_jiffy = 0,
.ipi_pipe = { -1, -1 }
};
unsigned long thread_saved_pc(struct task_struct *task)
{
- return(os_process_pc(CHOOSE_MODE_PROC(thread_pid_tt, thread_pid_skas,
- task)));
+ return os_process_pc(CHOOSE_MODE_PROC(thread_pid_tt, thread_pid_skas,
+ task));
}
+/* Changed in setup_arch, which is called in early boot */
+static char host_info[(__NEW_UTS_LEN + 1) * 5];
+
static int show_cpuinfo(struct seq_file *m, void *v)
{
int index = 0;
loops_per_jiffy/(500000/HZ),
(loops_per_jiffy/(5000/HZ)) % 100);
- return(0);
+ return 0;
}
static void *c_start(struct seq_file *m, loff_t *pos)
/* Set in linux_main */
unsigned long host_task_size;
unsigned long task_size;
-
-unsigned long uml_start;
-
-/* Set in early boot */
unsigned long uml_physmem;
-unsigned long uml_reserved;
+unsigned long uml_reserved; /* Also modified in mem_init */
unsigned long start_vm;
unsigned long end_vm;
+
+/* Set in uml_ncpus_setup */
int ncpus = 1;
#ifdef CONFIG_CMDLINE_ON_HOST
/* Set in early boot */
static int have_root __initdata = 0;
+
+/* Set in uml_mem_setup and modified in linux_main */
long long physmem_size = 32 * 1024 * 1024;
void set_cmdline(char *cmd)
#ifdef CONFIG_SMP
static int __init uml_ncpus_setup(char *line, int *add)
{
- if (!sscanf(line, "%d", &ncpus)) {
- printf("Couldn't parse [%s]\n", line);
- return -1;
- }
+ if (!sscanf(line, "%d", &ncpus)) {
+ printf("Couldn't parse [%s]\n", line);
+ return -1;
+ }
- return 0;
+ return 0;
}
__uml_setup("ncpus=", uml_ncpus_setup,
static int __init mode_tt_setup(char *line, int *add)
{
force_tt = 1;
- return(0);
+ return 0;
}
#else
static int __init mode_tt_setup(char *line, int *add)
{
printf("CONFIG_MODE_TT disabled - 'mode=tt' ignored\n");
- return(0);
+ return 0;
}
#else
static int __init mode_tt_setup(char *line, int *add)
{
printf("CONFIG_MODE_SKAS disabled - 'mode=tt' redundant\n");
- return(0);
+ return 0;
}
#endif
static int __init Usage(char *line, int *add)
{
- const char **p;
+ const char **p;
printf(usage_string, init_utsname()->release);
- p = &__uml_help_start;
- while (p < &__uml_help_end) {
- printf("%s", *p);
- p++;
- }
+ p = &__uml_help_start;
+ while (p < &__uml_help_end) {
+ printf("%s", *p);
+ p++;
+ }
exit(0);
-
return 0;
}
extern char __binary_start;
-int linux_main(int argc, char **argv)
+int __init linux_main(int argc, char **argv)
{
unsigned long avail, diff;
unsigned long virtmem_size, max_physmem;
printf("UML running in %s mode\n", mode);
- uml_start = (unsigned long) &__binary_start;
host_task_size = CHOOSE_MODE_PROC(set_task_sizes_tt,
set_task_sizes_skas, &task_size);
/*
- * Setting up handlers to 'sig_info' struct
- */
+ * Setting up handlers to 'sig_info' struct
+ */
os_fill_handlinfo(handlinfo_kern);
brk_start = (unsigned long) sbrk(0);
physmem_size += UML_ROUND_UP(brk_start) - UML_ROUND_UP(&_end);
}
- uml_physmem = uml_start & PAGE_MASK;
+ uml_physmem = (unsigned long) &__binary_start & PAGE_MASK;
/* Reserve up to 4M after the current brk */
uml_reserved = ROUND_4M(brk_start) + (1 << 22);
argv1_begin = argv[1];
argv1_end = &argv[1][strlen(argv[1])];
#endif
-
+
highmem = 0;
iomem_size = (iomem_size + PAGE_SIZE - 1) & PAGE_MASK;
max_physmem = get_kmem_end() - uml_physmem - iomem_size - MIN_VMALLOC;
printf("Kernel virtual memory size shrunk to %lu bytes\n",
virtmem_size);
- uml_postsetup();
+ uml_postsetup();
task_protections((unsigned long) &init_thread_info);
os_flush_stdout();
- return(CHOOSE_MODE(start_uml_tt(), start_uml_skas()));
+ return CHOOSE_MODE(start_uml_tt(), start_uml_skas());
}
extern int uml_exitcode;
show_regs(&(current->thread.regs));
bust_spinlocks(0);
uml_exitcode = 1;
- machine_halt();
- return(0);
+ os_dump_core();
+ return 0;
}
static struct notifier_block panic_exit_notifier = {
atomic_notifier_chain_register(&panic_notifier_list,
&panic_exit_notifier);
paging_init();
- strlcpy(saved_command_line, command_line, COMMAND_LINE_SIZE);
- *cmdline_p = command_line;
- setup_hostinfo();
+ strlcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
+ *cmdline_p = command_line;
+ setup_hostinfo(host_info, sizeof host_info);
}
void __init check_bugs(void)
{
arch_check_bugs();
- os_check_bugs();
+ os_check_bugs();
}
void apply_alternatives(struct alt_instr *start, struct alt_instr *end)
projects / linux-drm-fsl-dcu.git / blobdiff