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Subject[PATCH 4.4 184/266] x86/cpufeatures: Hide AMD-specific speculation flags
Date
From: Ben Hutchings <ben@decadent.org.uk>

Hide the AMD_{IBRS,IBPB,STIBP} flag from /proc/cpuinfo. This was done
upstream as part of commit e7c587da1252 "x86/speculation: Use
synthetic bits for IBRS/IBPB/STIBP". That commit has already been
backported but this part was omitted.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/include/asm/cpufeatures.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -265,9 +265,9 @@

/* AMD-defined CPU features, CPUID level 0x80000008 (ebx), word 13 */
#define X86_FEATURE_CLZERO (13*32+0) /* CLZERO instruction */
-#define X86_FEATURE_AMD_IBPB (13*32+12) /* Indirect Branch Prediction Barrier */
-#define X86_FEATURE_AMD_IBRS (13*32+14) /* Indirect Branch Restricted Speculation */
-#define X86_FEATURE_AMD_STIBP (13*32+15) /* Single Thread Indirect Branch Predictors */
+#define X86_FEATURE_AMD_IBPB (13*32+12) /* "" Indirect Branch Prediction Barrier */
+#define X86_FEATURE_AMD_IBRS (13*32+14) /* "" Indirect Branch Restricted Speculation */
+#define X86_FEATURE_AMD_STIBP (13*32+15) /* "" Single Thread Indirect Branch Predictors */
#define X86_FEATURE_VIRT_SSBD (13*32+25) /* Virtualized Speculative Store Bypass Disable */

/* Thermal and Power Management Leaf, CPUID level 0x00000006 (eax), word 14 */

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