Re: [PATCH 12/13] KVM: nVMX: Don't mark vmcs12 as dirty when L1 writes pin controls

[Paolo Bonzini <pbonzini@xxxxxxxxxx>]

On 07/05/19 21:18, Sean Christopherson wrote:
> +			 * path of prepare_vmcs02.  Pin controls is an exception as
> +			 * writing pin controls doesn't affect KVM's dirty logic and
> +			 * the VMX_PREEMPTION_TIMER flag may be toggled frequently,
> +			 * but not frequently enough to justify shadowing.
>  			 */
> +		case PIN_BASED_VM_EXEC_CONTROL:
>  			break;

Hmm, is it really that bad to shadow it?

Paolo