diff --git a/arch/x86/include/asm/hyperv.h b/arch/x86/include/asm/hyperv.h
index b80420b..9c5ffef 100644
--- a/arch/x86/include/asm/hyperv.h
+++ b/arch/x86/include/asm/hyperv.h
@@ -136,6 +136,9 @@
 /* MSR used to read the per-partition time reference counter */
 #define HV_X64_MSR_TIME_REF_COUNT		0x40000020
 
+/* A partition's reference time stamp counter (TSC) page */
+#define HV_X64_MSR_REFERENCE_TSC		0x40000021
+
 /* Define the virtual APIC registers */
 #define HV_X64_MSR_EOI				0x40000070
 #define HV_X64_MSR_ICR				0x40000071
@@ -179,6 +182,10 @@
 #define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_MASK	\
 		(~((1ull << HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT) - 1))
 
+#define HV_X64_MSR_TSC_REFERENCE_ENABLE			0x00000001
+#define HV_X64_MSR_TSC_REFERENCE_ADDRESS_SHIFT		12
+
+
 #define HV_PROCESSOR_POWER_STATE_C0		0
 #define HV_PROCESSOR_POWER_STATE_C1		1
 #define HV_PROCESSOR_POWER_STATE_C2		2
@@ -191,4 +198,11 @@
 #define HV_STATUS_INVALID_ALIGNMENT		4
 #define HV_STATUS_INSUFFICIENT_BUFFERS		19
 
+typedef struct _HV_REFERENCE_TSC_PAGE {
+    uint32_t TscSequence;
+    uint32_t Rserved1;
+    uint64_t TscScale;
+    int64_t  TscOffset;
+} HV_REFERENCE_TSC_PAGE, * PHV_REFERENCE_TSC_PAGE;
+
 #endif
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index b2e11f4..63ee09e 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -565,6 +565,8 @@ struct kvm_arch {
 	/* fields used by HYPER-V emulation */
 	u64 hv_guest_os_id;
 	u64 hv_hypercall;
+	u64 hv_ref_count;
+	u64 hv_tsc_page;
 
 	#ifdef CONFIG_KVM_MMU_AUDIT
 	int audit_point;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 4f76417..4538295 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -813,7 +813,7 @@ EXPORT_SYMBOL_GPL(kvm_rdpmc);
 static u32 msrs_to_save[] = {
 	MSR_KVM_SYSTEM_TIME, MSR_KVM_WALL_CLOCK,
 	MSR_KVM_SYSTEM_TIME_NEW, MSR_KVM_WALL_CLOCK_NEW,
-	HV_X64_MSR_GUEST_OS_ID, HV_X64_MSR_HYPERCALL,
+	HV_X64_MSR_GUEST_OS_ID, HV_X64_MSR_HYPERCALL, HV_X64_MSR_REFERENCE_TSC,
 	HV_X64_MSR_APIC_ASSIST_PAGE, MSR_KVM_ASYNC_PF_EN, MSR_KVM_STEAL_TIME,
 	MSR_KVM_PV_EOI_EN,
 	MSR_IA32_SYSENTER_CS, MSR_IA32_SYSENTER_ESP, MSR_IA32_SYSENTER_EIP,
@@ -1428,6 +1428,8 @@ static bool kvm_hv_msr_partition_wide(u32 msr)
 	switch (msr) {
 	case HV_X64_MSR_GUEST_OS_ID:
 	case HV_X64_MSR_HYPERCALL:
+	case HV_X64_MSR_TIME_REF_COUNT:
+	case HV_X64_MSR_REFERENCE_TSC:
 		r = true;
 		break;
 	}
@@ -1438,6 +1440,7 @@ static bool kvm_hv_msr_partition_wide(u32 msr)
 static int set_msr_hyperv_pw(struct kvm_vcpu *vcpu, u32 msr, u64 data)
 {
 	struct kvm *kvm = vcpu->kvm;
+	unsigned long addr;
 
 	switch (msr) {
 	case HV_X64_MSR_GUEST_OS_ID:
@@ -1467,6 +1470,27 @@ static int set_msr_hyperv_pw(struct kvm_vcpu *vcpu, u32 msr, u64 data)
 		if (__copy_to_user((void __user *)addr, instructions, 4))
 			return 1;
 		kvm->arch.hv_hypercall = data;
+		kvm->arch.hv_ref_count = get_kernel_ns();
+		break;
+	}
+	case HV_X64_MSR_REFERENCE_TSC: {
+		HV_REFERENCE_TSC_PAGE tsc_ref;
+		tsc_ref.TscSequence =
+			boot_cpu_has(X86_FEATURE_CONSTANT_TSC) ? 1 : 0;
+		tsc_ref.TscScale =
+			((10000LL << 32) /vcpu->arch.virtual_tsc_khz) << 32;
+		tsc_ref.TscOffset = 0;
+		if (!(data & HV_X64_MSR_TSC_REFERENCE_ENABLE)) {
+			kvm->arch.hv_tsc_page = data;
+			break;
+		}
+		addr = gfn_to_hva(vcpu->kvm, data >>
+			HV_X64_MSR_TSC_REFERENCE_ADDRESS_SHIFT);
+		if (kvm_is_error_hva(addr))
+			return 1;
+		if(__copy_to_user((void __user *)addr, &tsc_ref, sizeof(tsc_ref)))
+			return 1;
+		kvm->arch.hv_tsc_page = data;
 		break;
 	}
 	default:
@@ -1881,6 +1905,13 @@ static int get_msr_hyperv_pw(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
 	case HV_X64_MSR_HYPERCALL:
 		data = kvm->arch.hv_hypercall;
 		break;
+	case HV_X64_MSR_TIME_REF_COUNT:
+		data = get_kernel_ns() - kvm->arch.hv_ref_count;
+		do_div(data, 100);
+		break;
+	case HV_X64_MSR_REFERENCE_TSC:
+		data = kvm->arch.hv_tsc_page;
+		break;
 	default:
 		vcpu_unimpl(vcpu, "Hyper-V unhandled rdmsr: 0x%x\n", msr);
 		return 1;