Re: [PATCH v2 3/7] docs: document non-net VHOST_USER_GET_FEATURES behavior

2020-07-06 Thread Stefan Hajnoczi
On Wed, Jun 10, 2020 at 01:01:26AM -0400, Michael S. Tsirkin wrote: > On Tue, Jun 09, 2020 at 06:02:14PM +0100, Stefan Hajnoczi wrote: > > +For devices other than the networking device, masters may assume the > > following > > +feature bits are always set in ``VHOST_USER_GET_FEATURES`` for > > co

Re: [PATCH v2 3/7] docs: document non-net VHOST_USER_GET_FEATURES behavior

2020-06-09 Thread Michael S. Tsirkin
On Tue, Jun 09, 2020 at 06:02:14PM +0100, Stefan Hajnoczi wrote: > QEMU enabled several feature bits for non-net devices without allowing > the device backend to control them. This only works when the device > backend implements support for those features. It won't work for new > features like the

[PATCH v2 3/7] docs: document non-net VHOST_USER_GET_FEATURES behavior

2020-06-09 Thread Stefan Hajnoczi
QEMU enabled several feature bits for non-net devices without allowing the device backend to control them. This only works when the device backend implements support for those features. It won't work for new features like the packed virtqueue layout, where proper feature negotiation will be needed.