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authorGleb Natapov <gleb@redhat.com>2010-01-17 16:51:23 +0300
committerMarcelo Tosatti <mtosatti@redhat.com>2010-03-01 18:36:00 +0300
commit10388a07164c1512b3a3d0273b9adc230f82790e (patch)
tree1a1a5de7c0c639143fbfa4f2b01bb59bc7135882 /arch/x86/kvm/lapic.h
parent55cd8e5a4edb8e235163ffe8264b9aaa8d7c050f (diff)
downloadlinux-10388a07164c1512b3a3d0273b9adc230f82790e.tar.xz
KVM: Add HYPER-V apic access MSRs
Implement HYPER-V apic MSRs. Spec defines three MSRs that speed-up access to EOI/TPR/ICR apic registers for PV guests. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Vadim Rozenfeld <vrozenfe@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm/lapic.h')
-rw-r--r--arch/x86/kvm/lapic.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
index 40010b09c4aa..f5fe32c5edad 100644
--- a/arch/x86/kvm/lapic.h
+++ b/arch/x86/kvm/lapic.h
@@ -48,4 +48,12 @@ void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu);
int kvm_x2apic_msr_write(struct kvm_vcpu *vcpu, u32 msr, u64 data);
int kvm_x2apic_msr_read(struct kvm_vcpu *vcpu, u32 msr, u64 *data);
+
+int kvm_hv_vapic_msr_write(struct kvm_vcpu *vcpu, u32 msr, u64 data);
+int kvm_hv_vapic_msr_read(struct kvm_vcpu *vcpu, u32 msr, u64 *data);
+
+static inline bool kvm_hv_vapic_assist_page_enabled(struct kvm_vcpu *vcpu)
+{
+ return vcpu->arch.hv_vapic & HV_X64_MSR_APIC_ASSIST_PAGE_ENABLE;
+}
#endif