Re: [Qemu-devel] [PATCH v3] virtio-pci: Fix cross-version migration with older machines

2016-12-15 Thread Maxime Coquelin
On 12/15/2016 11:31 AM, Stefan Hajnoczi wrote: On Thu, Dec 15, 2016 at 09:26:56AM +0100, Cornelia Huck wrote: On Thu, 15 Dec 2016 07:38:09 + Stefan Hajnoczi wrote: On Wed, Dec 14, 2016 at 05:30:35PM +0100, Maxime Coquelin wrote: This patch fixes a cross-version

Re: [Qemu-devel] [PATCH v3] virtio-pci: Fix cross-version migration with older machines

2016-12-15 Thread Stefan Hajnoczi
On Thu, Dec 15, 2016 at 09:26:56AM +0100, Cornelia Huck wrote: > On Thu, 15 Dec 2016 07:38:09 + > Stefan Hajnoczi wrote: > > > On Wed, Dec 14, 2016 at 05:30:35PM +0100, Maxime Coquelin wrote: > > > This patch fixes a cross-version migration regression introduced > > > by

Re: [Qemu-devel] [PATCH v3] virtio-pci: Fix cross-version migration with older machines

2016-12-15 Thread Cornelia Huck
On Thu, 15 Dec 2016 07:38:09 + Stefan Hajnoczi wrote: > On Wed, Dec 14, 2016 at 05:30:35PM +0100, Maxime Coquelin wrote: > > This patch fixes a cross-version migration regression introduced > > by commit d1b4259f ("virtio-bus: Plug devices after features are > >

Re: [Qemu-devel] [PATCH v3] virtio-pci: Fix cross-version migration with older machines

2016-12-14 Thread Stefan Hajnoczi
On Wed, Dec 14, 2016 at 05:30:35PM +0100, Maxime Coquelin wrote: > This patch fixes a cross-version migration regression introduced > by commit d1b4259f ("virtio-bus: Plug devices after features are > negotiated"). > > The problem is encountered when host's vhost backend does not support >

Re: [Qemu-devel] [PATCH v3] virtio-pci: Fix cross-version migration with older machines

2016-12-14 Thread Michael S. Tsirkin
On Wed, Dec 14, 2016 at 05:30:35PM +0100, Maxime Coquelin wrote: > This patch fixes a cross-version migration regression introduced > by commit d1b4259f ("virtio-bus: Plug devices after features are > negotiated"). > > The problem is encountered when host's vhost backend does not support >

Re: [Qemu-devel] [PATCH v3] virtio-pci: Fix cross-version migration with older machines

2016-12-14 Thread Stefan Hajnoczi
On Wed, Dec 14, 2016 at 4:30 PM, Maxime Coquelin wrote: > This patch fixes a cross-version migration regression introduced > by commit d1b4259f ("virtio-bus: Plug devices after features are > negotiated"). > > The problem is encountered when host's vhost backend does

[Qemu-devel] [PATCH v3] virtio-pci: Fix cross-version migration with older machines

2016-12-14 Thread Maxime Coquelin
This patch fixes a cross-version migration regression introduced by commit d1b4259f ("virtio-bus: Plug devices after features are negotiated"). The problem is encountered when host's vhost backend does not support VIRTIO_F_VERSION_1, and migration is initiated from a v2.7 or prior machine with