HV_X64_MSR_EOI, HV_X64_MSR_ICR, HV_X64_MSR_TPR, and HV_X64_MSR_VP_ASSIST_PAGE are only available to guest when HV_MSR_APIC_ACCESS_AVAILABLE bit is exposed. Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx> --- arch/x86/kvm/hyperv.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index 2582c23126fa..a41ad21768ed 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -1237,6 +1237,13 @@ static bool hv_check_msr_access(struct kvm_vcpu_hv *hv_vcpu, u32 msr) case HV_X64_MSR_STIMER3_COUNT: return hv_vcpu->cpuid_cache.features_eax & HV_MSR_SYNTIMER_AVAILABLE; + case HV_X64_MSR_EOI: + case HV_X64_MSR_ICR: + case HV_X64_MSR_TPR: + case HV_X64_MSR_VP_ASSIST_PAGE: + return hv_vcpu->cpuid_cache.features_eax & + HV_MSR_APIC_ACCESS_AVAILABLE; + break; default: break; } -- 2.31.1
