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KVM: LAPIC: Return 0 when getting the tscdeadline timer if the lapic is hw disabled

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Return 0 when getting the tscdeadline timer if the lapic is hw disabled.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1599731444-3525-2-git-send-email-wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Wanpeng Li 2020-09-10 17:50:36 +08:00 • committed by Paolo Bonzini
parent ae6f249686
commit a970e9b216
1 changed files with 1 additions and 2 deletions
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3
arch/x86/kvm/lapic.c
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@ -2188,8 +2188,7 @@ u64 kvm_get_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu)
{ {
struct kvm_lapic *apic = vcpu->arch.apic; struct kvm_lapic *apic = vcpu->arch.apic;
if (!lapic_in_kernel(vcpu) || if (!kvm_apic_present(vcpu) || !apic_lvtt_tscdeadline(apic))
!apic_lvtt_tscdeadline(apic))
return 0; return 0;
return apic->lapic_timer.tscdeadline; return apic->lapic_timer.tscdeadline;