x86/kvm/hyper-v: add reenlightenment MSRs support

[mirror_ubuntu-hirsute-kernel.git] / arch / x86 / kvm / hyperv.c

diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index 53bd1913b6fd0c33611e8d76133a502079813bab..2cffb94565f607947933d2b21008ca38609d387f 100644 (file)
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -737,6 +737,9 @@ static bool kvm_hv_msr_partition_wide(u32 msr)
        case HV_X64_MSR_CRASH_CTL:
        case HV_X64_MSR_CRASH_P0 ... HV_X64_MSR_CRASH_P4:
        case HV_X64_MSR_RESET:
+       case HV_X64_MSR_REENLIGHTENMENT_CONTROL:
+       case HV_X64_MSR_TSC_EMULATION_CONTROL:
+       case HV_X64_MSR_TSC_EMULATION_STATUS:
                r = true;
                break;
        }
@@ -982,6 +985,15 @@ static int kvm_hv_set_msr_pw(struct kvm_vcpu *vcpu, u32 msr, u64 data,
                        kvm_make_request(KVM_REQ_HV_RESET, vcpu);
                }
                break;
+       case HV_X64_MSR_REENLIGHTENMENT_CONTROL:
+               hv->hv_reenlightenment_control = data;
+               break;
+       case HV_X64_MSR_TSC_EMULATION_CONTROL:
+               hv->hv_tsc_emulation_control = data;
+               break;
+       case HV_X64_MSR_TSC_EMULATION_STATUS:
+               hv->hv_tsc_emulation_status = data;
+               break;
        default:
                vcpu_unimpl(vcpu, "Hyper-V uhandled wrmsr: 0x%x data 0x%llx\n",
                            msr, data);
@@ -1106,6 +1118,15 @@ static int kvm_hv_get_msr_pw(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
        case HV_X64_MSR_RESET:
                data = 0;
                break;
+       case HV_X64_MSR_REENLIGHTENMENT_CONTROL:
+               data = hv->hv_reenlightenment_control;
+               break;
+       case HV_X64_MSR_TSC_EMULATION_CONTROL:
+               data = hv->hv_tsc_emulation_control;
+               break;
+       case HV_X64_MSR_TSC_EMULATION_STATUS:
+               data = hv->hv_tsc_emulation_status;
+               break;
        default:
                vcpu_unimpl(vcpu, "Hyper-V unhandled rdmsr: 0x%x\n", msr);
                return 1;