Re: [PATCH] pseries: disable migration-test if /dev/kvm cannot be used

[David Gibson <david@gibson.dropbear.id.au>]

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On Thu, Nov 21, 2019 at 09:30:27AM +0100, Juan Quintela wrote:
> Laurent Vivier <lvivier@redhat.com> wrote:
> > On 21/11/2019 08:18, Juan Quintela wrote:
> >> Laurent Vivier <lvivier@redhat.com> wrote:
> >>> On ppc64, migration-test only works with kvm_hv, and we already
> >>> have a check to verify the module is loaded.
> >>>
> >>> kvm_hv module can be loaded in memory and /sys/module/kvm_hv exists,
> >>> but on some systems (like build systems) /dev/kvm can be missing
> >>> (by administrators choice).
> >>>
> >>> And as kvm_hv exists test-migration is started but QEMU falls back to
> >>> TCG because it cannot be used:
> >>>
> >>>     Could not access KVM kernel module: No such file or directory
> >>>     failed to initialize KVM: No such file or directory
> >>>     Back to tcg accelerator
> >>>
> >>> And as the test is done with TCG, it fails.
> >>>
> >>> As for s390x, we must check for the existence and the access rights
> >>> of /dev/kvm.
> >>>
> >>> Reported-by: Cole Robinson <crobinso@redhat.com>
> >>> Signed-off-by: Laurent Vivier <lvivier@redhat.com>
> >> 
> >> Reviewed-by: Juan Quintela <quintela@redhat.com>
> >> 
> >> Oh, why it is so difficult!!!
> >> 
> >> Thanks, Juan.
> >> 
> >
> > David,
> >
> > could you add this one too to your ppc-for-4.2 queue?
> 
> I was about to ask if you preffered it to go through the migration tree.
> 
> David?

Migration tree is good for me.

> 
> Later, Juan.
> 

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

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