5 files changed, 9 insertions, 9 deletions

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index b2e11f452435..d60535adec98 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -700,7 +700,7 @@ struct kvm_x86_ops {
         void (*write_tsc_offset)(struct kvm_vcpu *vcpu, u64 offset);
 
         u64 (*compute_tsc_offset)(struct kvm_vcpu *vcpu, u64 target_tsc);
-        u64 (*read_l1_tsc)(struct kvm_vcpu *vcpu);
+        u64 (*read_l1_tsc)(struct kvm_vcpu *vcpu, u64 host_tsc);
 
         void (*get_exit_info)(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2);
 
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 43e9fadca5d0..9392f527f107 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1011,7 +1011,7 @@ static void start_apic_timer(struct kvm_lapic *apic)
                 local_irq_save(flags);
 
                 now = apic->lapic_timer.timer.base->get_time();
-                guest_tsc = kvm_x86_ops->read_l1_tsc(vcpu);
+                guest_tsc = kvm_x86_ops->read_l1_tsc(vcpu, native_read_tsc());
                 if (likely(tscdeadline > guest_tsc)) {
                         ns = (tscdeadline - guest_tsc) * 1000000ULL;
                         do_div(ns, this_tsc_khz);
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index e93908fabf46..94f5ceba7e1e 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -3005,11 +3005,11 @@ static int cr8_write_interception(struct vcpu_svm *svm)
         return 0;
 }
 
-u64 svm_read_l1_tsc(struct kvm_vcpu *vcpu)
+u64 svm_read_l1_tsc(struct kvm_vcpu *vcpu, u64 host_tsc)
 {
         struct vmcb *vmcb = get_host_vmcb(to_svm(vcpu));
         return vmcb->control.tsc_offset +
-                svm_scale_tsc(vcpu, native_read_tsc());
+                svm_scale_tsc(vcpu, host_tsc);
 }
 
 static int svm_get_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 *data)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 6599e45f73f6..896efd4842e7 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1839,11 +1839,10 @@ static u64 guest_read_tsc(void)
  * Like guest_read_tsc, but always returns L1's notion of the timestamp
  * counter, even if a nested guest (L2) is currently running.
  */
-u64 vmx_read_l1_tsc(struct kvm_vcpu *vcpu)
+u64 vmx_read_l1_tsc(struct kvm_vcpu *vcpu, u64 host_tsc)
 {
-        u64 host_tsc, tsc_offset;
+        u64 tsc_offset;
 
-        rdtscll(host_tsc);
         tsc_offset = is_guest_mode(vcpu) ?
                 to_vmx(vcpu)->nested.vmcs01_tsc_offset :
                 vmcs_read64(TSC_OFFSET);
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 1dfe9d318734..1155059c512e 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1150,7 +1150,7 @@ static int kvm_guest_time_update(struct kvm_vcpu *v)
 
         /* Keep irq disabled to prevent changes to the clock */
         local_irq_save(flags);
-        tsc_timestamp = kvm_x86_ops->read_l1_tsc(v);
+        tsc_timestamp = kvm_x86_ops->read_l1_tsc(v, native_read_tsc());
         kernel_ns = get_kernel_ns();
         this_tsc_khz = __get_cpu_var(cpu_tsc_khz);
         if (unlikely(this_tsc_khz == 0)) {
@@ -5338,7 +5338,8 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
         if (hw_breakpoint_active())
                 hw_breakpoint_restore();
 
-        vcpu->arch.last_guest_tsc = kvm_x86_ops->read_l1_tsc(vcpu);
+        vcpu->arch.last_guest_tsc = kvm_x86_ops->read_l1_tsc(vcpu,
+                                                           native_read_tsc());
 
         vcpu->mode = OUTSIDE_GUEST_MODE;
         smp_wmb();