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sched: guest CPU accounting: maintain guest state in KVM

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Modify KVM to update guest time accounting.

[ mingo@elte.hu: ported to 2.6.24 KVM. ]

Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net>
Acked-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Laurent Vivier 2007-10-15 17:00:19 +02:00 committed by Ingo Molnar
parent 94886b84b1
commit d172fcd3ae
2 changed files with 12 additions and 0 deletions
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10
drivers/kvm/kvm.h
View File

@ -624,6 +624,16 @@ void kvm_mmu_unload(struct kvm_vcpu *vcpu);
int kvm_hypercall(struct kvm_vcpu *vcpu, struct kvm_run *run);
static inline void kvm_guest_enter(void)
{
current->flags |= PF_VCPU;
}
static inline void kvm_guest_exit(void)
{
current->flags &= ~PF_VCPU;
}
static inline int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva,
u32 error_code)
{

2
drivers/kvm/kvm_main.c
View File

@ -2046,6 +2046,7 @@ again:
kvm_x86_ops->inject_pending_vectors(vcpu, kvm_run);
vcpu->guest_mode = 1;
kvm_guest_enter();
if (vcpu->requests)
if (test_and_clear_bit(KVM_TLB_FLUSH, &vcpu->requests))
@ -2053,6 +2054,7 @@ again:
kvm_x86_ops->run(vcpu, kvm_run);
kvm_guest_exit();
vcpu->guest_mode = 0;
local_irq_enable();