Re: [Qemu-devel] [PATCH 0/2] introduce "accel=best"

[Andrew Jones]

On Tue, Oct 04, 2016 at 01:30:46PM +0200, Laurent Vivier wrote:
> This series introduces a new parameter to "accel" to
> ask to use the best one.
> 
> This allows to remove ugly "kvm accelerator not found"
> from the "make check" logs.
> 
> Laurent Vivier (2):
>   accel: allows to select the "best" accelerator
>   tests: use accel=best instead of accel=kvm:tcg
> 
>  accel.c                  | 58 
> ++++++++++++++++++++++++++++++++++++++++--------
>  include/sysemu/accel.h   |  1 +
>  kvm-all.c                |  1 +
>  qemu-options.hx          |  4 +++-
>  qtest.c                  |  1 +
>  tests/bios-tables-test.c |  2 +-
>  tests/postcopy-test.c    |  8 +++----
>  xen-common.c             |  1 +
>  8 files changed, 61 insertions(+), 15 deletions(-)
> 
> -- 
> 2.7.4
> 
>

How about probing the host for KVM in the tests. When it's
available, then only emit accel=kvm. When it's not (and
it's OK to fallback to tcg), then emit only accel=tcg.
That's what we do in kvm-unit-tests.

Thanks,
drew