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authorEddie Dong <eddie.dong@intel.com>2007-09-03 16:15:12 +0300
committerAvi Kivity <avi@qumranet.com>2007-10-13 10:18:26 +0200
commita3d7f85f471f889e4477863a7ca42828ae74e77d (patch)
treef75148a940f7e297da91f6a14ab573291ceb050f /drivers/kvm/vmx.c
parent1b9778dae71dc64d3678d766c0f1fbed79c80f9f (diff)
KVM: Migrate lapic hrtimer when vcpu moves to another cpu
This reduces overhead by accessing cachelines from the wrong node, as well as simplifying locking. [Qing: fix for inactive or expired one-shot timer] Signed-off-by: Yaozu (Eddie) Dong <Eddie.Dong@intel.com> Signed-off-by: Qing He <qing.he@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/vmx.c')
-rw-r--r--drivers/kvm/vmx.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c
index eeecadf5da4..f4618b9edf9 100644
--- a/drivers/kvm/vmx.c
+++ b/drivers/kvm/vmx.c
@@ -441,8 +441,10 @@ static void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
u64 phys_addr = __pa(vmx->vmcs);
u64 tsc_this, delta;
- if (vcpu->cpu != cpu)
+ if (vcpu->cpu != cpu) {
vcpu_clear(vmx);
+ kvm_migrate_apic_timer(vcpu);
+ }
if (per_cpu(current_vmcs, cpu) != vmx->vmcs) {
u8 error;