diff mbox series

[2/2] KVM: VMX: Stop the preemption timer during vCPU reset

Message ID 1567664788-10249-2-git-send-email-wanpengli@tencent.com (mailing list archive)
State New, archived
Headers show
Series [1/2] KVM: LAPIC: Micro optimize IPI latency | expand

Commit Message

Wanpeng Li Sept. 5, 2019, 6:26 a.m. UTC 
From: Wanpeng Li <wanpengli@tencent.com>

The hrtimer which is used to emulate lapic timer is stopped during 
vcpu reset, preemption timer should do the same.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
---
 arch/x86/kvm/vmx/vmx.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Paolo Bonzini Sept. 11, 2019, 4:06 p.m. UTC | #1 
On 05/09/19 08:26, Wanpeng Li wrote:
> From: Wanpeng Li <wanpengli@tencent.com>
> 
> The hrtimer which is used to emulate lapic timer is stopped during 
> vcpu reset, preemption timer should do the same.
> 
> Cc: Paolo Bonzini <pbonzini@redhat.com>
> Cc: Radim Krčmář <rkrcmar@redhat.com>
> Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
> ---
>  arch/x86/kvm/vmx/vmx.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
> index 570a233..f794929 100644
> --- a/arch/x86/kvm/vmx/vmx.c
> +++ b/arch/x86/kvm/vmx/vmx.c
> @@ -4162,6 +4162,7 @@ static void vmx_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event)
>  
>  	vcpu->arch.microcode_version = 0x100000000ULL;
>  	vmx->vcpu.arch.regs[VCPU_REGS_RDX] = get_rdx_init_val();
> +	vmx->hv_deadline_tsc = -1;
>  	kvm_set_cr8(vcpu, 0);
>  
>  	if (!init_event) {
> 

Queued both, thanks.

Paolo
diff mbox series

Patch

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 570a233..f794929 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -4162,6 +4162,7 @@  static void vmx_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event)
 
 	vcpu->arch.microcode_version = 0x100000000ULL;
 	vmx->vcpu.arch.regs[VCPU_REGS_RDX] = get_rdx_init_val();
+	vmx->hv_deadline_tsc = -1;
 	kvm_set_cr8(vcpu, 0);
 
 	if (!init_event) {