Re: [Qemu-devel] [PATCH 1/2] accel: allows to select the "best" accelerator

[Peter Maydell]

On 4 October 2016 at 13:00, Daniel P. Berrange <address@hidden> wrote:
> On Tue, Oct 04, 2016 at 01:30:47PM +0200, Laurent Vivier wrote:
>> By default, QEMU uses 'tcg' or the one provided with the "accel"
>> property.
>>
>> But sometime, user wants to use a real accelerator without knowing
>> if he really can, with, for instance accel=kvm:tcg.
>> In this case, and if the accelerator is not available we
>> have a noisy "XXX accelerator not found".
>
> IMHO it would be better to just remove that warning message
> and continue using existing accel=kvm:tcg syntax to specify
> the preference of which accelerators to use.

Oddly we don't give a warning message for what is probably
the most common user error: forgetting to specify -enable-kvm
and thus getting TCG only even though the h/w supports KVM...

thanks
-- PMM