KVM: VMX: dump VMCS on failed entry

This is useful for debugging, and is ratelimited nowadays. Signed-off-by: Paolo Bonzini <[email protected]>
ambv · Jul 20, 2019 · 3b20e03 · 3b20e03
1 parent 6fc3977
commit 3b20e03
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
@@ -5829,6 +5829,7 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu)
 	}
 
 	if (unlikely(vmx->fail)) {
+		dump_vmcs();
 		vcpu->run->exit_reason = KVM_EXIT_FAIL_ENTRY;
 		vcpu->run->fail_entry.hardware_entry_failure_reason
 			= vmcs_read32(VM_INSTRUCTION_ERROR);