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| author |  Wanpeng Li <wanpengli@tencent.com>
| 2020-09-10 17:50:40 +0800 |
|---|---|---|
| committer |  Paolo Bonzini <pbonzini@redhat.com>
| 2020-09-28 07:57:09 -0400 |
| commit | 68ca7663c75b099539fe675fc5387dee44d3a6cc (patch) | |
| tree | ebc0821cfc5dd0438fc83e7c2803c1e487d8c0b8 /arch/x86/kvm/x86.h | |
| parent | KVM: LAPIC: Guarantee the timer is in tsc-deadline mode when setting (diff) | |
| download | linux-68ca7663c75b099539fe675fc5387dee44d3a6cc.tar.gz linux-68ca7663c75b099539fe675fc5387dee44d3a6cc.tar.bz2 linux-68ca7663c75b099539fe675fc5387dee44d3a6cc.zip | |
KVM: LAPIC: Narrow down the kick target vCPU
The kick after setting KVM_REQ_PENDING_TIMER is used to handle the timer
fires on a different pCPU which vCPU is running on. This kick costs about
1000 clock cycles and we don't need this when injecting already-expired
timer or when using the VMX preemption timer because
kvm_lapic_expired_hv_timer() is called from the target vCPU.
Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1599731444-3525-6-git-send-email-wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/x86.h')
| -rw-r--r-- | arch/x86/kvm/x86.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h index 995ab696dcf0..ea20b8bfd5dc 100644 --- a/arch/x86/kvm/x86.h +++ b/arch/x86/kvm/x86.h @@ -246,7 +246,6 @@ static inline bool kvm_vcpu_latch_init(struct kvm_vcpu *vcpu) return is_smm(vcpu) || kvm_x86_ops.apic_init_signal_blocked(vcpu); } -void kvm_set_pending_timer(struct kvm_vcpu *vcpu); void kvm_inject_realmode_interrupt(struct kvm_vcpu *vcpu, int irq, int inc_eip); void kvm_write_tsc(struct kvm_vcpu *vcpu, struct msr_data *msr); |