diff options
| author |   Wanpeng Li <wanpeng.li@hotmail.com> | 2016-06-30 08:52:49 +0800 |
|---|---|---|
| committer |   Yunhong Jiang <yunhong.jiang@linux.intel.com> | 2016-07-18 08:08:08 -0700 |
| commit | 9b19dab47067a65808e46008e9b25929e5bed737 (patch) | |
| tree | 146b1660b8422c70a95f3136b2db9d046c9ac2b9 /kernel/arch/x86 | |
| parent | 6443c73ab06239ab4b1bc0511d9b78f7122f477d (diff) | |
KVM: x86: introduce cancel_hv_tscdeadline
Introduce cancel_hv_tscdeadline() to encapsulate preemption
timer cancel stuff.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Yunhong Jiang <yunhong.jiang@intel.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Change-Id: Icc038176cbf361a9ecdf37ed3425108db57617f2
upstream-status: backport
Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
Diffstat (limited to 'kernel/arch/x86')
| -rw-r--r-- | kernel/arch/x86/kvm/lapic.c | 18 |
1 files 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; |