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authorLinus Torvalds <torvalds@linux-foundation.org>2018-01-21 10:48:35 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-01-21 10:48:35 -0800
commit5515114211c5096987b8e622c2ca57929cebabaa (patch)
tree73924d90c4a9435b9eb0b29093b7b8a121c78864 /Documentation
parent319f1e04c7e7016233f998a1a48cd3d17da2108f (diff)
parent3f7d875566d8e79c5e0b2c9a413e91b2c29e0854 (diff)
downloadlinux-5515114211c5096987b8e622c2ca57929cebabaa.tar.bz2
Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 pti fixes from Thomas Gleixner: "A small set of fixes for the meltdown/spectre mitigations: - Make kprobes aware of retpolines to prevent probes in the retpoline thunks. - Make the machine check exception speculation protected. MCE used to issue an indirect call directly from the ASM entry code. Convert that to a direct call into a C-function and issue the indirect call from there so the compiler can add the retpoline protection, - Make the vmexit_fill_RSB() assembly less stupid - Fix a typo in the PTI documentation" * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/retpoline: Optimize inline assembler for vmexit_fill_RSB x86/pti: Document fix wrong index kprobes/x86: Disable optimizing on the function jumps to indirect thunk kprobes/x86: Blacklist indirect thunk functions for kprobes retpoline: Introduce start/end markers of indirect thunk x86/mce: Make machine check speculation protected
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/x86/pti.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/x86/pti.txt b/Documentation/x86/pti.txt
index d11eff61fc9a..5cd58439ad2d 100644
--- 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