[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: guest / host buffer sharing ...
From: |
Stefan Hajnoczi |
Subject: |
Re: guest / host buffer sharing ... |
Date: |
Wed, 6 Nov 2019 12:46:07 +0100 |
On Wed, Nov 6, 2019 at 10:51 AM Gerd Hoffmann <address@hidden> wrote:
> > > Reason is: Meanwhile I'm wondering whenever "just use virtio-gpu
> > > resources" is really a good answer for all the different use cases
> > > we have collected over time. Maybe it is better to have a dedicated
> > > buffer sharing virtio device? Here is the rough idea:
> >
> > My concern is that buffer sharing isn't a "device". It's a primitive
> > used in building other devices. When someone asks for just buffer
> > sharing it's often because they do not intend to upstream a
> > specification for their device.
>
> Well, "vsock" isn't a classic device (aka nic/storage/gpu/...) either.
> It is more a service to allow communication between host and guest
There are existing applications and network protocols that can be
easily run over virtio-vsock, virtio-net, and virtio-serial to do
useful things.
If a new device has no use except for writing a custom code, then it's
a clue that we're missing the actual use case.
In the graphics buffer sharing use case, how does the other side
determine how to interpret this data? Shouldn't there be a VIRTIO
device spec for the messaging so compatible implementations can be
written by others?
Stefan
- guest / host buffer sharing ..., Gerd Hoffmann, 2019/11/05
- Re: guest / host buffer sharing ...,
Stefan Hajnoczi <=
- Re: guest / host buffer sharing ..., Gerd Hoffmann, 2019/11/06
- Re: guest / host buffer sharing ..., Stefan Hajnoczi, 2019/11/07
- Re: guest / host buffer sharing ..., Frank Yang, 2019/11/07
- Re: guest / host buffer sharing ..., Tomasz Figa, 2019/11/20
- Re: guest / host buffer sharing ..., Gerd Hoffmann, 2019/11/08
- Re: guest / host buffer sharing ..., Stefan Hajnoczi, 2019/11/08
- Re: guest / host buffer sharing ..., Stéphane Marchesin, 2019/11/08
- Re: guest / host buffer sharing ..., Stefan Hajnoczi, 2019/11/09
- Re: guest / host buffer sharing ..., Tomasz Figa, 2019/11/09
- Re: guest / host buffer sharing ..., Stefan Hajnoczi, 2019/11/09