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xen-devel
Re: [Xen-devel] Re: More virtio users
Gerd Hoffmann wrote:
Hi,
Framebuffer is an interesting one. Virtio doesn't assume shared memory,
so naively the fb you would just send outbufs describing changed memory.
This would work, but describing rectangles is better. A helper might be
the right approach here
Rectangles work just fine for a framebuffer console. They stop
working once you plan to run any graphical stuff such as an X-Server
on top of the framebuffer. Only way to get notified about changes is
page faults, i.e. 4k granularity on the linear framebuffer memory.
For X an accelerated device is probably much better than a dumb framebuffer.
Related to Framebuffer is virtual keyboard and virtual mouse (or
better touchscreen), which probably works perfectly fine with virtio.
I'd guess you can even reuse the input layer event struct for the
virtio events.
Need to be careful if we want to support non-Linux guests.
--
error compiling committee.c: too many arguments to function
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