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/vmx.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/kvm/vmx.c') diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c index 93e5bb2c40e3..4d255493a57e 100644 --- a/drivers/kvm/vmx.c +++ b/drivers/kvm/vmx.c @@ -1988,6 +1988,10 @@ again: vmx_save_host_state(vcpu); kvm_load_guest_fpu(vcpu); + r = kvm_mmu_reload(vcpu); + if (unlikely(r)) + goto out; + /* * Loading guest fpu may have cleared host cr0.ts */ -- cgit v1.2.3