Re: [PATCH] KVM: VMX: dump VMCS on failed entry

[Liran Alon]

> On 19 Jul 2019, at 19:42, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote:
> 
> This is useful for debugging, and is ratelimited nowadays.
> 
> Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>

Reviewed-by: Liran Alon <liran.alon@xxxxxxxxxx>

> ---
> arch/x86/kvm/vmx/vmx.c | 1 +
> 1 file changed, 1 insertion(+)
> 
> diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
> index 69536553446d..c7ee5ead1565 100644
> --- 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);
> -- 
> 1.8.3.1
>