4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: David Woodhouse <d...@amazon.co.uk>

commit e24f14b0ff985f3e09e573ba1134bfdf42987e05 upstream

Signed-off-by: David Woodhouse <d...@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
 tools/arch/x86/include/asm/cpufeatures.h |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/tools/arch/x86/include/asm/cpufeatures.h
+++ b/tools/arch/x86/include/asm/cpufeatures.h
@@ -213,7 +213,7 @@
 #define X86_FEATURE_IBPB       ( 7*32+26) /* Indirect Branch Prediction 
Barrier */
 #define X86_FEATURE_STIBP      ( 7*32+27) /* Single Thread Indirect Branch 
Predictors */
 #define X86_FEATURE_ZEN                ( 7*32+28) /* "" CPU is AMD family 0x17 
(Zen) */
-
+#define X86_FEATURE_L1TF_PTEINV        ( 7*32+29) /* "" L1TF workaround PTE 
inversion */
 
 /* Virtualization flags: Linux defined, word 8 */
 #define X86_FEATURE_TPR_SHADOW  ( 8*32+ 0) /* Intel TPR Shadow */
@@ -317,6 +317,7 @@
 #define X86_FEATURE_PCONFIG            (18*32+18) /* Intel PCONFIG */
 #define X86_FEATURE_SPEC_CTRL          (18*32+26) /* "" Speculation Control 
(IBRS + IBPB) */
 #define X86_FEATURE_INTEL_STIBP                (18*32+27) /* "" Single Thread 
Indirect Branch Predictors */
+#define X86_FEATURE_FLUSH_L1D          (18*32+28) /* Flush L1D cache */
 #define X86_FEATURE_ARCH_CAPABILITIES  (18*32+29) /* IA32_ARCH_CAPABILITIES 
MSR (Intel) */
 #define X86_FEATURE_SPEC_CTRL_SSBD     (18*32+31) /* "" Speculative Store 
Bypass Disable */
 
@@ -349,5 +350,6 @@
 #define X86_BUG_SPECTRE_V1     X86_BUG(15) /* CPU is affected by Spectre 
variant 1 attack with conditional branches */
 #define X86_BUG_SPECTRE_V2     X86_BUG(16) /* CPU is affected by Spectre 
variant 2 attack with indirect branches */
 #define X86_BUG_SPEC_STORE_BYPASS X86_BUG(17) /* CPU is affected by 
speculative store bypass attack */
+#define X86_BUG_L1TF           X86_BUG(18) /* CPU is affected by L1 Terminal 
Fault */
 
 #endif /* _ASM_X86_CPUFEATURES_H */


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