From 17c3ba9d37dbda490792a2b52953f09d0dee30d6 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Mon, 4 Jun 2007 15:58:30 +0300 Subject: KVM: Lazy guest cr3 switching Switch guest paging context may require us to allocate memory, which might fail. Instead of wiring up error paths everywhere, make context switching lazy and actually do the switch before the next guest entry, where we can return an error if allocation fails. Signed-off-by: Avi Kivity --- drivers/kvm/svm.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/kvm/svm.c') diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c index 6cd6a50a0340..ec040e2f8c58 100644 --- a/drivers/kvm/svm.c +++ b/drivers/kvm/svm.c @@ -1483,6 +1483,10 @@ static int svm_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) int r; again: + r = kvm_mmu_reload(vcpu); + if (unlikely(r)) + return r; + if (!vcpu->mmio_read_completed) do_interrupt_requests(vcpu, kvm_run); -- cgit v1.2.1