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x86/pti: Document fix wrong index
author
zhenwei.pi
<zhenwei.pi@youruncloud.com>
Thu, 18 Jan 2018 01:04:52 +0000
(09:04 +0800)
committer
Thomas Gleixner
<tglx@linutronix.de>
Fri, 19 Jan 2018 15:31:29 +0000
(16:31 +0100)
In section <2. Runtime Cost>, fix wrong index.
Signed-off-by: zhenwei.pi <zhenwei.pi@youruncloud.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: dave.hansen@linux.intel.com
Link:
https://lkml.kernel.org/r/1516237492-27739-1-git-send-email-zhenwei.pi@youruncloud.com
Documentation/x86/pti.txt
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diff --git
a/Documentation/x86/pti.txt
b/Documentation/x86/pti.txt
index d11eff61fc9addf6cd0ad54db5b30bac73783503..5cd58439ad2d6f7bf8a3d781f89ccd9bbb8e1597 100644
(file)
--- a/
Documentation/x86/pti.txt
+++ b/
Documentation/x86/pti.txt
@@
-78,7
+78,7
@@
this protection comes at a cost:
non-PTI SYSCALL entry code, so requires mapping fewer
things into the userspace page tables. The downside is
that stacks must be switched at entry time.
-
d
. Global pages are disabled for all kernel structures not
+
c
. Global pages are disabled for all kernel structures not
mapped into both kernel and userspace page tables. This
feature of the MMU allows different processes to share TLB
entries mapping the kernel. Losing the feature means more