From 3f5d18a96577fd78277e08c467041573b9a65eaf Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Thu, 11 Jun 2009 15:43:28 +0300 Subject: KVM: Return to userspace on emulation failure Instead of mindlessly retrying to execute the instruction, report the failure to userspace. Signed-off-by: Avi Kivity --- arch/x86/kvm/mmu.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 5f97dbd2429..b6e4cda7704 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -2673,8 +2673,9 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u32 error_code) ++vcpu->stat.mmio_exits; return 0; case EMULATE_FAIL: - kvm_report_emulation_failure(vcpu, "pagetable"); - return 1; + vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR; + vcpu->run->internal.suberror = KVM_INTERNAL_ERROR_EMULATION; + return 0; default: BUG(); } -- cgit v1.2.3