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KVM: Move apic timer migration away from critical section

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Migrating the apic timer in the critical section is not very nice, and is
absolutely horrible with the real-time port.  Move migration to the regular
vcpu execution path, triggered by a new bitflag.

Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Avi Kivity 2008-01-16 12:49:30 +02:00
commit 2f52d58c92
4 changed files with 12 additions and 4 deletions
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6
include/linux/kvm_host.h
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@ -35,6 +35,7 @@
* vcpu->requests bit members
*/
#define KVM_REQ_TLB_FLUSH 0
#define KVM_REQ_MIGRATE_TIMER 1
#define KVM_REQ_REPORT_TPR_ACCESS 2
struct kvm_vcpu;
@ -277,6 +278,11 @@ static inline gpa_t gfn_to_gpa(gfn_t gfn)
return (gpa_t)gfn << PAGE_SHIFT;
}
static inline void kvm_migrate_apic_timer(struct kvm_vcpu *vcpu)
{
set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests);
}
enum kvm_stat_kind {
KVM_STAT_VM,
KVM_STAT_VCPU,