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| author | Sheng Yang <sheng.yang@intel.com> | 2008-09-10 18:53:34 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-09-10 14:00:56 +0200 |
| commit | e38e05a85828dac23540cd007df5f20985388afc (patch) | |
| tree | 63bd7a87dc991772af73cf3e406166e79e8fcb63 /include | |
| parent | 315a6558f30a264c88274fa70626615d1c7851c7 (diff) | |
| download | kernel-crypto-e38e05a85828dac23540cd007df5f20985388afc.tar.gz kernel-crypto-e38e05a85828dac23540cd007df5f20985388afc.tar.xz kernel-crypto-e38e05a85828dac23540cd007df5f20985388afc.zip | |
x86: extended "flags" to show virtualization HW feature in /proc/cpuinfo
The hardware virtualization technology evolves very fast. But currently
it's hard to tell if your CPU support a certain kind of HW technology
without digging into the source code.
The patch add a new catagory in "flags" under /proc/cpuinfo. Now "flags"
can indicate the (important) HW virtulization features the CPU supported
as well.
Current implementation just cover Intel VMX side.
Signed-off-by: Sheng Yang <sheng.yang@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-x86/cpufeature.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/asm-x86/cpufeature.h b/include/asm-x86/cpufeature.h index 7ac4d93d20e..8d45690bef5 100644 --- a/include/asm-x86/cpufeature.h +++ b/include/asm-x86/cpufeature.h @@ -6,7 +6,7 @@ #include <asm/required-features.h> -#define NCAPINTS 8 /* N 32-bit words worth of info */ +#define NCAPINTS 9 /* N 32-bit words worth of info */ /* * Note: If the comment begins with a quoted string, that string is used @@ -150,6 +150,13 @@ */ #define X86_FEATURE_IDA (7*32+ 0) /* Intel Dynamic Acceleration */ +/* Virtualization flags: Linux defined */ +#define X86_FEATURE_TPR_SHADOW (8*32+ 0) /* Intel TPR Shadow */ +#define X86_FEATURE_VNMI (8*32+ 1) /* Intel Virtual NMI */ +#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 */ + #if defined(__KERNEL__) && !defined(__ASSEMBLY__) #include <linux/bitops.h> |