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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-04 17:12:45 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-04 17:12:45 -0700 |
| commit | e9c9eecabaa898ff3fedd98813ee4ac1a00d006a (patch) | |
| tree | b74ac36e0c766b5662bf78577ac0ae2e0274642b /arch/x86/kernel/cpu/common.c | |
| parent | 19d402c1e75077e2bcfe17f7fe5bcfc8deb74991 (diff) | |
| parent | af0fa6f6b5851761e9fbf79eb14ba86e857b4e7b (diff) | |
Merge branch 'x86-cpufeature-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpufeature updates from Ingo Molnar:
"The main changes in this cycle were:
- Continued cleanups of CPU bugs mis-marked as 'missing features', by
Borislav Petkov.
- Detect the xsaves/xrstors feature and releated cleanup, by Fenghua
Yu"
* 'x86-cpufeature-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, cpu: Kill cpu_has_mp
x86, amd: Cleanup init_amd
x86/cpufeature: Add bug flags to /proc/cpuinfo
x86, cpufeature: Convert more "features" to bugs
x86/xsaves: Detect xsaves/xrstors feature
x86/cpufeature.h: Reformat x86 feature macros
Diffstat (limited to 'arch/x86/kernel/cpu/common.c')
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index ef1b93f18ed1..188a8c5cc094 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -634,6 +634,15 @@ void get_cpu_cap(struct cpuinfo_x86 *c) c->x86_capability[9] = ebx; } + /* Extended state features: level 0x0000000d */ + if (c->cpuid_level >= 0x0000000d) { + u32 eax, ebx, ecx, edx; + + cpuid_count(0x0000000d, 1, &eax, &ebx, &ecx, &edx); + + c->x86_capability[10] = eax; + } + /* AMD-defined flags: level 0x80000001 */ xlvl = cpuid_eax(0x80000000); c->extended_cpuid_level = xlvl; |