4.9-stable review patch. If anyone has any objections, please let me know.
------------------ From: David Woodhouse <d...@amazon.co.uk> (cherry picked from commit 5d10cbc91d9eb5537998b65608441b592eec65e7) AMD exposes the PRED_CMD/SPEC_CTRL MSRs slightly differently to Intel. See http://lkml.kernel.org/r/2b3e25cc-286d-8bd0-aeaf-9ac4aae39...@amd.com Signed-off-by: David Woodhouse <d...@amazon.co.uk> Signed-off-by: Thomas Gleixner <t...@linutronix.de> Reviewed-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> Cc: Tom Lendacky <thomas.lenda...@amd.com> Cc: gno...@lxorguk.ukuu.org.uk Cc: a...@linux.intel.com Cc: ashok....@intel.com Cc: dave.han...@intel.com Cc: karah...@amazon.de Cc: ar...@linux.intel.com Cc: torva...@linux-foundation.org Cc: pet...@infradead.org Cc: b...@alien8.de Cc: pbonz...@redhat.com Cc: tim.c.c...@linux.intel.com Cc: gre...@linux-foundation.org Link: https://lkml.kernel.org/r/1516896855-7642-4-git-send-email-d...@amazon.co.uk Signed-off-by: David Woodhouse <d...@amazon.co.uk> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- arch/x86/include/asm/cpufeatures.h | 3 +++ 1 file changed, 3 insertions(+) --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -258,6 +258,9 @@ /* AMD-defined CPU features, CPUID level 0x80000008 (ebx), word 13 */ #define X86_FEATURE_CLZERO (13*32+0) /* CLZERO instruction */ #define X86_FEATURE_IRPERF (13*32+1) /* Instructions Retired Count */ +#define X86_FEATURE_AMD_PRED_CMD (13*32+12) /* Prediction Command MSR (AMD) */ +#define X86_FEATURE_AMD_SPEC_CTRL (13*32+14) /* Speculation Control MSR only (AMD) */ +#define X86_FEATURE_AMD_STIBP (13*32+15) /* Single Thread Indirect Branch Predictors (AMD) */ /* Thermal and Power Management Leaf, CPUID level 0x00000006 (eax), word 14 */ #define X86_FEATURE_DTHERM (14*32+ 0) /* Digital Thermal Sensor */
