diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2022-07-19 13:47:14 -0400 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-07-19 20:53:10 +0200 |
| commit | 3f2adf00f52b5f2e9e9f23bb5c77608fc9ee297c (patch) | |
| tree | 10fdae3b49d9b250ad34a87ecfff7a19787638ed /arch/x86/kernel/cpu | |
| parent | 6f33a9daff9f07906365c4054c90b225f346cd0e (diff) | |
| download | linux-3f2adf00f52b5f2e9e9f23bb5c77608fc9ee297c.tar.bz2 | |
x86/cpu: Use MSR_IA32_MISC_ENABLE constants
Instead of the magic numbers 1<<11 and 1<<12 use the constants
from msr-index.h. This makes it obvious where those bits
of MSR_IA32_MISC_ENABLE are consumed (and in fact that Linux
consumes them at all) to simple minds that grep for
MSR_IA32_MISC_ENABLE_.*_UNAVAIL.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220719174714.2410374-1-pbonzini@redhat.com
Diffstat (limited to 'arch/x86/kernel/cpu')
| -rw-r--r-- | arch/x86/kernel/cpu/intel.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index 8321c43554a1..a00dd3e2ab55 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -647,9 +647,9 @@ static void init_intel(struct cpuinfo_x86 *c) unsigned int l1, l2; rdmsr(MSR_IA32_MISC_ENABLE, l1, l2); - if (!(l1 & (1<<11))) + if (!(l1 & MSR_IA32_MISC_ENABLE_BTS_UNAVAIL)) set_cpu_cap(c, X86_FEATURE_BTS); - if (!(l1 & (1<<12))) + if (!(l1 & MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL)) set_cpu_cap(c, X86_FEATURE_PEBS); } |