diff options
Diffstat (limited to 'arch/x86/kernel/cpu/common.c')
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 0681c69a1f09..64deb7727d00 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -91,14 +91,17 @@ DEFINE_PER_CPU_READ_MOSTLY(u16, cpu_l2c_id) = BAD_APICID; static struct ppin_info { int feature; int msr_ppin_ctl; + int msr_ppin; } ppin_info[] = { [X86_VENDOR_INTEL] = { .feature = X86_FEATURE_INTEL_PPIN, .msr_ppin_ctl = MSR_PPIN_CTL, + .msr_ppin = MSR_PPIN }, [X86_VENDOR_AMD] = { .feature = X86_FEATURE_AMD_PPIN, .msr_ppin_ctl = MSR_AMD_PPIN_CTL, + .msr_ppin = MSR_AMD_PPIN }, }; @@ -153,6 +156,7 @@ static void ppin_init(struct cpuinfo_x86 *c) /* Is the enable bit set? */ if (val & 2UL) { + c->ppin = __rdmsr(info->msr_ppin); set_cpu_cap(c, info->feature); return; } |