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| author |   Chao Peng <chao.p.peng@linux.intel.com> | 2018-10-24 16:05:15 +0800 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2018-12-21 11:28:37 +0100 |
| commit | b08c28960f254bd246af8e30a468dfc7dd56e03b (patch) | |
| tree | 07ded28e09d131d36afc941e23fc422777f24bf2 /arch/x86/kvm/vmx/vmx.h | |
| parent | KVM: x86: Implement Intel PT MSRs read/write emulation (diff) | |
| download | linux-dev-b08c28960f254bd246af8e30a468dfc7dd56e03b.tar.xz linux-dev-b08c28960f254bd246af8e30a468dfc7dd56e03b.zip | |
KVM: x86: Set intercept for Intel PT MSRs read/write
To save performance overhead, disable intercept Intel PT MSRs
read/write when Intel PT is enabled in guest.
MSR_IA32_RTIT_CTL is an exception that will always be intercepted.
Signed-off-by: Chao Peng <chao.p.peng@linux.intel.com>
Signed-off-by: Luwei Kang <luwei.kang@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h index dd3b9ab90556..20172c11d5f8 100644 --- a/arch/x86/kvm/vmx/vmx.h +++ b/arch/x86/kvm/vmx/vmx.h @@ -316,6 +316,7 @@ bool vmx_get_nmi_mask(struct kvm_vcpu *vcpu); void vmx_set_nmi_mask(struct kvm_vcpu *vcpu, bool masked); void vmx_set_virtual_apic_mode(struct kvm_vcpu *vcpu); struct shared_msr_entry *find_msr_entry(struct vcpu_vmx *vmx, u32 msr); +void pt_update_intercept_for_msr(struct vcpu_vmx *vmx); #define POSTED_INTR_ON 0 #define POSTED_INTR_SN 1 |