Reason becomes apparent soon; this is an easy to digest step.
Signed-off-by: Zachary Amsden <zamsden@xxxxxxxxxx>
---
arch/x86/include/asm/kvm_host.h | 2 ++
arch/x86/kvm/x86.c | 2 ++
2 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 871800d..638cae5 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -341,6 +341,8 @@ struct kvm_vcpu_arch {
u64 last_host_tsc;
u64 last_guest_tsc;
u64 last_kernel_ns;
+ u64 last_tsc_nsec;
+ u64 last_tsc_write;
bool nmi_pending;
bool nmi_injected;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 517daf3..3691e70 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -962,6 +962,8 @@ void kvm_write_tsc(struct kvm_vcpu *vcpu, u64 data)
/* Reset of TSC must disable overshoot protection below */
vcpu->arch.hv_clock.tsc_timestamp = 0;
+ vcpu->arch.last_tsc_write = data;
+ vcpu->arch.last_tsc_nsec = ns;
}
EXPORT_SYMBOL_GPL(kvm_write_tsc);
--
1.7.1
--
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