Messages in this thread Patch in this message | | | From | Joerg Roedel <> | Subject | [PATCH] x86: Print AMD virtualization features in /proc/cpuinfo | Date | Mon, 14 Dec 2009 13:08:41 +0100 |
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This patch adds code to cpu initialization path to detect the extended virtualization features of AMD cpus to show them in /proc/cpuinfo.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> --- arch/x86/include/asm/cpufeature.h | 4 ++++ arch/x86/kernel/cpu/addon_cpuid_features.c | 4 ++++ 2 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index 613700f..7dbc1c2 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -167,6 +167,10 @@ #define X86_FEATURE_FLEXPRIORITY (8*32+ 2) /* Intel FlexPriority */ #define X86_FEATURE_EPT (8*32+ 3) /* Intel Extended Page Table */ #define X86_FEATURE_VPID (8*32+ 4) /* Intel Virtual Processor ID */ +#define X86_FEATURE_NPT (8*32+5) /* AMD Nested Page Table support */ +#define X86_FEATURE_LBRV (8*32+6) /* AMD LBR Virtualization support */ +#define X86_FEATURE_SVML (8*32+7) /* "svm_lock" AMD SVM locking MSR */ +#define X86_FEATURE_NRIPS (8*32+8) /* "nrip_save" AMD SVM next_rip save */ #if defined(__KERNEL__) && !defined(__ASSEMBLY__) diff --git a/arch/x86/kernel/cpu/addon_cpuid_features.c b/arch/x86/kernel/cpu/addon_cpuid_features.c index 468489b..97ad79c 100644 --- a/arch/x86/kernel/cpu/addon_cpuid_features.c +++ b/arch/x86/kernel/cpu/addon_cpuid_features.c @@ -32,6 +32,10 @@ void __cpuinit init_scattered_cpuid_features(struct cpuinfo_x86 *c) static const struct cpuid_bit __cpuinitconst cpuid_bits[] = { { X86_FEATURE_IDA, CR_EAX, 1, 0x00000006 }, { X86_FEATURE_ARAT, CR_EAX, 2, 0x00000006 }, + { X86_FEATURE_NPT, CR_EDX, 0, 0x8000000a }, + { X86_FEATURE_LBRV, CR_EDX, 1, 0x8000000a }, + { X86_FEATURE_SVML, CR_EDX, 2, 0x8000000a }, + { X86_FEATURE_NRIPS, CR_EDX, 3, 0x8000000a }, { 0, 0, 0, 0 } }; -- 1.6.5.4
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