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authorAvi Kivity <avi@redhat.com>2009-06-11 15:43:28 +0300
committerAvi Kivity <avi@redhat.com>2009-09-10 08:32:52 +0300
commit3f5d18a96577fd78277e08c467041573b9a65eaf (patch)
tree5c9e15a3b48d188729bb77283cf353fd42903155 /arch/x86/kvm
parent988a2cae6a3c0dea6df59808a935a9a697bfc28c (diff)
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 <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
-rw-r--r--arch/x86/kvm/mmu.c5
1 files changed, 3 insertions, 2 deletions
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();
}