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| author | Takashi Iwai <tiwai@suse.de> | 2012-07-18 13:53:06 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-07-18 13:53:06 +0200 |
| commit | 61eab000f3536f080eab43fd5eed3fd817ded76e (patch) | |
| tree | d1448b3b90c5650b522c8d13d8bdd7bd65a5cf52 /arch/x86/xen/enlighten.c | |
| parent | 68e67f40b7343383517c3f951b4b8db7626406bc (diff) | |
| parent | 4e01ec636e64707d202a1ca21a47bbc6d53085b7 (diff) | |
Merge branch 'topic/hda' into for-next
This is a large chunk merge for 3.6 HD-audio things
Diffstat (limited to 'arch/x86/xen/enlighten.c')
| -rw-r--r-- | arch/x86/xen/enlighten.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index e74df9548a02..ff962d4b821e 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -209,6 +209,9 @@ static void __init xen_banner(void) xen_feature(XENFEAT_mmu_pt_update_preserve_ad) ? " (preserve-AD)" : ""); } +#define CPUID_THERM_POWER_LEAF 6 +#define APERFMPERF_PRESENT 0 + static __read_mostly unsigned int cpuid_leaf1_edx_mask = ~0; static __read_mostly unsigned int cpuid_leaf1_ecx_mask = ~0; @@ -242,6 +245,11 @@ static void xen_cpuid(unsigned int *ax, unsigned int *bx, *dx = cpuid_leaf5_edx_val; return; + case CPUID_THERM_POWER_LEAF: + /* Disabling APERFMPERF for kernel usage */ + maskecx = ~(1 << APERFMPERF_PRESENT); + break; + case 0xb: /* Suppress extended topology stuff */ maskebx = 0; |