diff options
| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2020-09-24 12:42:46 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-09-28 07:57:25 -0400 |
| commit | 8d921acf98ec3e82cf673a5422890939cd4c24f5 (patch) | |
| tree | 868583173588ca432f2e1c174b6aa278bd6eec8b /arch/x86/kvm/vmx/vmx.c | |
| parent | 28e2b2f1a40dbada5740fdd83e8645949d1c8db6 (diff) | |
KVM: VMX: Use precomputed MAXPHYADDR for RTIT base MSR check
Use cpuid_maxphyaddr() instead of cpuid_query_maxphyaddr() for the
RTIT base MSR check. There is no reason to recompute MAXPHYADDR as the
precomputed version is synchronized with CPUID updates, and
MSR_IA32_RTIT_OUTPUT_BASE is not written between stuffing CPUID and
refreshing vcpu->arch.maxphyaddr.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20200924194250.19137-2-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/vmx/vmx.c')
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index dc74bb62d1df..84dea7357e1e 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -147,7 +147,7 @@ module_param_named(preemption_timer, enable_preemption_timer, bool, S_IRUGO); RTIT_STATUS_BYTECNT)) #define MSR_IA32_RTIT_OUTPUT_BASE_MASK \ - (~((1UL << cpuid_query_maxphyaddr(vcpu)) - 1) | 0x7f) + (~((1UL << cpuid_maxphyaddr(vcpu)) - 1) | 0x7f) /* * These 2 parameters are used to config the controls for Pause-Loop Exiting: |