> -----Original Message-----
> From: Michael S. Tsirkin [mailto:m...@redhat.com]
> Sent: Tuesday, February 12, 2019 1:23 AM
> To: Dr. David Alan Gilbert <dgilb...@redhat.com>
> Cc: qemu-devel@nongnu.org; Liu, Changpeng <changpeng....@intel.com>;
> stefa...@redhat.com; ldok...@redhat.com
> Subject: Re: virtio-blk io bar size changed
>
> On Mon, Feb 11, 2019 at 04:58:19PM +0000, Dr. David Alan Gilbert wrote:
> > Hi,
> > Lukáš reported that there's a migration breakage between 3.1 and
> > current head with virtio-blk; it looks like the io bar changes from 64
> > to 128 bytes and my bisect suggests it's:
> >
> > commit caa1ee43131c060347b32893abd41fe4865eaa2e (HEAD, refs/bisect/bad)
> > Author: Changpeng Liu <changpeng....@intel.com>
> > Date: Wed Jan 16 13:19:30 2019 +0800
> >
> > vhost-user-blk: add discard/write zeroes features support
> >
> >
> > How do we fix that?
> >
> > Dave
>
> Quickly :)
>
> See the logic around virtio_net_set_config_size
> and static VirtIOFeature feature_sizes - we need to
> add something similar to virtio blk now.
Correct, after this commit the BAR config size is changed, I will submit a
patch to fix this.
>
>
> > --
> > Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK
