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Re: [Qemu-ppc] [PATCH v2] tests/postcopy: Use KVM on ppc64 only if it is
Re: [Qemu-ppc] [PATCH v2] tests/postcopy: Use KVM on ppc64 only if it is KVM-HV
Wed, 16 Nov 2016 11:37:11 +0100
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0
On 16/11/2016 11:26, Thomas Huth wrote:
> On 16.11.2016 11:18, Laurent Vivier wrote:
>> On 16/11/2016 11:14, Thomas Huth wrote:
>>> The ppc64 postcopy test does not work with KVM-PR, and it is also
>>> causing annoying warning messages when run on a x86 host. So let's
>>> use KVM here only if we know that we're running with KVM-HV (which
>>> automatically also means that we're running on a ppc64 host), and
>>> use TCG otherwise.
>>> Signed-off-by: Thomas Huth <address@hidden>
>>> - Check also /dev/kvm to make sure that we're allowed to access KVM
>> I'm not sure it's a good idea as we will fail silently whereas QEMU
>> sends an error message. It's common mistake we should be aware of.
> But if I run "make check" as a normal user who does not have access
> right to /dev/kvm, this is IMHO not a fatal error (since this could be
> on purpose), thus we should not issue an error message here and simply
> use TCG instead.
> If you want to see at least a warning in this case, I think we should
> rather go with v1 of this patch that used "kvm:tcg".
I think it's better to have a warning, so let's got with v1...