From 9b19dab47067a65808e46008e9b25929e5bed737 Mon Sep 17 00:00:00 2001 From: Wanpeng Li Date: Thu, 30 Jun 2016 08:52:49 +0800 Subject: KVM: x86: introduce cancel_hv_tscdeadline MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Introduce cancel_hv_tscdeadline() to encapsulate preemption timer cancel stuff. Cc: Paolo Bonzini Cc: Radim Krčmář Cc: Yunhong Jiang Signed-off-by: Wanpeng Li Signed-off-by: Paolo Bonzini Change-Id: Icc038176cbf361a9ecdf37ed3425108db57617f2 upstream-status: backport Signed-off-by: Yunhong Jiang --- kernel/arch/x86/kvm/lapic.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/kernel/arch/x86/kvm/lapic.c b/kernel/arch/x86/kvm/lapic.c index 701f91234..e19426843 100644 --- a/kernel/arch/x86/kvm/lapic.c +++ b/kernel/arch/x86/kvm/lapic.c @@ -1294,14 +1294,19 @@ bool kvm_lapic_hv_timer_in_use(struct kvm_vcpu *vcpu) } EXPORT_SYMBOL_GPL(kvm_lapic_hv_timer_in_use); +static void cancel_hv_tscdeadline(struct kvm_lapic *apic) +{ + kvm_x86_ops->cancel_hv_timer(apic->vcpu); + apic->lapic_timer.hv_timer_in_use = false; +} + void kvm_lapic_expired_hv_timer(struct kvm_vcpu *vcpu) { struct kvm_lapic *apic = vcpu->arch.apic; WARN_ON(!apic->lapic_timer.hv_timer_in_use); WARN_ON(swait_active(&vcpu->wq)); - kvm_x86_ops->cancel_hv_timer(vcpu); - apic->lapic_timer.hv_timer_in_use = false; + cancel_hv_tscdeadline(apic); apic_timer_expired(apic); } EXPORT_SYMBOL_GPL(kvm_lapic_expired_hv_timer); @@ -1321,10 +1326,8 @@ void kvm_lapic_switch_to_hv_timer(struct kvm_vcpu *vcpu) hrtimer_cancel(&apic->lapic_timer.timer); /* In case the sw timer triggered in the window */ - if (atomic_read(&apic->lapic_timer.pending)) { - apic->lapic_timer.hv_timer_in_use = false; - kvm_x86_ops->cancel_hv_timer(apic->vcpu); - } + if (atomic_read(&apic->lapic_timer.pending)) + cancel_hv_tscdeadline(apic); } trace_kvm_hv_timer_state(vcpu->vcpu_id, apic->lapic_timer.hv_timer_in_use); @@ -1340,8 +1343,7 @@ void kvm_lapic_switch_to_sw_timer(struct kvm_vcpu *vcpu) if (!apic->lapic_timer.hv_timer_in_use) return; - kvm_x86_ops->cancel_hv_timer(vcpu); - apic->lapic_timer.hv_timer_in_use = false; + cancel_hv_tscdeadline(apic); if (atomic_read(&apic->lapic_timer.pending)) return; -- cgit 1.2.3-korg