This is a note to let you know that I've just added the patch titled
x86/speculation: Add <asm/msr-index.h> dependency
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-speculation-add-asm-msr-index.h-dependency.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ea00f301285ea2f07393678cd2b6057878320c9d Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Date: Tue, 13 Feb 2018 14:28:19 +0100
Subject: x86/speculation: Add <asm/msr-index.h> dependency
From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
commit ea00f301285ea2f07393678cd2b6057878320c9d upstream.
Joe Konno reported a compile failure resulting from using an MSR
without inclusion of <asm/msr-index.h>, and while the current code builds
fine (by accident) this needs fixing for future patches.
Reported-by: Joe Konno <joe.konno@xxxxxxxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: arjan@xxxxxxxxxxxxxxx
Cc: bp@xxxxxxxxx
Cc: dan.j.williams@xxxxxxxxx
Cc: dave.hansen@xxxxxxxxxxxxxxx
Cc: dwmw2@xxxxxxxxxxxxx
Cc: dwmw@xxxxxxxxxxxx
Cc: gregkh@xxxxxxxxxxxxxxxxxxx
Cc: hpa@xxxxxxxxx
Cc: jpoimboe@xxxxxxxxxx
Cc: linux-tip-commits@xxxxxxxxxxxxxxx
Cc: luto@xxxxxxxxxx
Fixes: 20ffa1caecca ("x86/speculation: Add basic IBPB (Indirect Branch Prediction Barrier) support")
Link: http://lkml.kernel.org/r/20180213132819.GJ25201@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/x86/include/asm/nospec-branch.h | 1 +
1 file changed, 1 insertion(+)
--- a/arch/x86/include/asm/nospec-branch.h
+++ b/arch/x86/include/asm/nospec-branch.h
@@ -6,6 +6,7 @@
#include <asm/alternative.h>
#include <asm/alternative-asm.h>
#include <asm/cpufeatures.h>
+#include <asm/msr-index.h>
#ifdef __ASSEMBLY__
Patches currently in stable-queue which might be from peterz@xxxxxxxxxxxxx are
queue-4.9/x86-spectre-fix-an-error-message.patch
queue-4.9/nospec-move-array_index_nospec-parameter-checking-into-separate-macro.patch
queue-4.9/x86-nvmx-properly-set-spec_ctrl-and-pred_cmd-before-merging-msrs.patch
queue-4.9/x86-speculation-add-asm-msr-index.h-dependency.patch
queue-4.9/x86-cpu-rename-cpu_data.x86_mask-to-cpu_data.x86_stepping.patch
queue-4.9/x86-cpu-change-type-of-x86_cache_size-variable-to-unsigned-int.patch
queue-4.9/x86-speculation-update-speculation-control-microcode-blacklist.patch
queue-4.9/x86-speculation-correct-speculation-control-microcode-blacklist-again.patch
queue-4.9/selftests-x86-do-not-rely-on-int-0x80-in-single_step_syscall.c.patch
queue-4.9/selftests-x86-mpx-fix-incorrect-bounds-with-old-_sigfault.patch
queue-4.9/selftests-x86-pkeys-remove-unused-functions.patch
queue-4.9/x86-speculation-fix-up-array_index_nospec_mask-asm-constraint.patch
queue-4.9/kvm-x86-reduce-retpoline-performance-impact-in-slot_handle_level_range-by-always-inlining-iterator-helper-methods.patch
queue-4.9/selftests-x86-do-not-rely-on-int-0x80-in-test_mremap_vdso.c.patch
queue-4.9/x86-speculation-clean-up-various-spectre-related-details.patch
queue-4.9/x86-entry-64-compat-clear-registers-for-compat-syscalls-to-reduce-speculation-attack-surface.patch