From 498f8162191683d9068fd7e14909484027dee194 Mon Sep 17 00:00:00 2001 From: Wanpeng Li Date: Mon, 24 Oct 2016 18:23:11 +0800 Subject: [PATCH] KVM: LAPIC: introduce kvm_get_lapic_target_expiration_tsc() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Introdce kvm_get_lapic_target_expiration_tsc() to get APIC Timer target deadline tsc. Cc: Paolo Bonzini Cc: Radim Krčmář Cc: Yunhong Jiang Signed-off-by: Wanpeng Li Signed-off-by: Radim Krčmář --- arch/x86/kvm/lapic.c | 9 +++++++++ arch/x86/kvm/lapic.h | 1 + arch/x86/kvm/x86.c | 2 +- 3 files changed, 11 insertions(+), 1 deletion(-) diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index dce6c0bf2a21..531fc28e5de4 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -1706,6 +1706,15 @@ void kvm_free_lapic(struct kvm_vcpu *vcpu) * LAPIC interface *---------------------------------------------------------------------- */ +u64 kvm_get_lapic_target_expiration_tsc(struct kvm_vcpu *vcpu) +{ + struct kvm_lapic *apic = vcpu->arch.apic; + + if (!lapic_in_kernel(vcpu)) + return 0; + + return apic->lapic_timer.tscdeadline; +} u64 kvm_get_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu) { diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h index f60d01c29d51..031db2631a1a 100644 --- a/arch/x86/kvm/lapic.h +++ b/arch/x86/kvm/lapic.h @@ -85,6 +85,7 @@ int kvm_apic_get_state(struct kvm_vcpu *vcpu, struct kvm_lapic_state *s); int kvm_apic_set_state(struct kvm_vcpu *vcpu, struct kvm_lapic_state *s); int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu); +u64 kvm_get_lapic_target_expiration_tsc(struct kvm_vcpu *vcpu); u64 kvm_get_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu); void kvm_set_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu, u64 data); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 7e30c720d0c5..83990ad3710e 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2794,7 +2794,7 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) } if (kvm_lapic_hv_timer_in_use(vcpu) && kvm_x86_ops->set_hv_timer(vcpu, - kvm_get_lapic_tscdeadline_msr(vcpu))) + kvm_get_lapic_target_expiration_tsc(vcpu))) kvm_lapic_switch_to_sw_timer(vcpu); /* * On a host with synchronized TSC, there is no need to update -- 2.20.1