On Wed, 31 Jul 2019 15:06:11 -0400 "Michael S. Tsirkin" <m...@redhat.com> wrote:
> On Wed, Jul 31, 2019 at 03:55:51PM +0200, Cornelia Huck wrote: > > On Tue, 30 Jul 2019 16:18:52 -0400 > > "Michael S. Tsirkin" <m...@redhat.com> wrote: > > > Make sure your guests > > > are all up to date in preparation to the day when legacy will go away. > > > > If legacy goes away, legacy guests will be busted anyway :) > > It'll take a while for it to go away. But we can try to > push guests in the direction of coding up modern > support e.g. by forcing modern by default. Actually, ccw defaulted to transitional devices right back when we introduced support for virtio-1 - starting with QEMU 2.5. I'm not sure how many (if any) supported guest OSs (various variants of Linux) support virtio-ccw devices in legacy mode only. We can probably neglect that issue, but I would not really complain if someone submitted a patch to optionally turn off legacy support for ccw.
