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KVM: Migrate lapic hrtimer when vcpu moves to another cpu

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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>
This commit is contained in:
Eddie Dong
2007-09-03 16:15:12 +03:00
committed by Avi Kivity
parent 1b9778dae7
commit a3d7f85f47
4 changed files with 19 additions and 1 deletions
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1
drivers/kvm/svm.c
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@ -633,6 +633,7 @@ static void svm_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
delta = vcpu->host_tsc - tsc_this;
svm->vmcb->control.tsc_offset += delta;
vcpu->cpu = cpu;
kvm_migrate_apic_timer(vcpu);
}
for (i = 0; i < NR_HOST_SAVE_USER_MSRS; i++)