From: "Michael S. Tsirkin" <mst@redhat.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
qemu-devel@nongnu.org, Anthony Liguori <aliguori@amazon.com>,
airlied@redhat.com
Subject: Re: [Qemu-devel] [PATCH 3/4] virtio-gpu: v0.3 of the virtio based GPU code.
Date: Sun, 16 Mar 2014 14:28:00 +0200 [thread overview]
Message-ID: <20140316122800.GB17626@redhat.com> (raw)
In-Reply-To: <1394795918.5732.12.camel@nilsson.home.kraxel.org>
On Fri, Mar 14, 2014 at 12:18:38PM +0100, Gerd Hoffmann wrote:
> Hi,
>
> > Perhaps a configuration field is better, like this:
> >
> > u32 events_read;
> > u32 events_clear;
> >
> > A new event sets a bit in events_read and generates a configuration
> > change interrupt. The guest should never write to events_read.
>
> Makes sense to me. I think I'll go write up things as diff against
> virtio-wip, then post it for review.
>
> cheers,
> Gerd
>
Net device has a similar problem with gratitious packet
sending. What we are doing there is VIRTIO_NET_S_ANNOUNCE bit
in the status field in the configuration, coupled with
VIRTIO_NET_CTRL_ANNOUNCE_ACK command to clear it.
--
MST
next prev parent reply other threads:[~2014-03-16 12:28 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-12 12:55 [Qemu-devel] [PATCH 0/4] vga: new display devices Gerd Hoffmann
2014-03-12 12:55 ` [Qemu-devel] [PATCH 1/4] vga: allow non-global vmstate Gerd Hoffmann
2014-03-12 12:55 ` [Qemu-devel] [PATCH 2/4] vga: add secondary stdvga variant Gerd Hoffmann
2014-03-12 13:11 ` Eric Blake
2014-03-12 12:55 ` [Qemu-devel] [PATCH 3/4] virtio-gpu: v0.3 of the virtio based GPU code Gerd Hoffmann
2014-03-12 20:26 ` Michael S. Tsirkin
2014-03-13 9:08 ` Gerd Hoffmann
2014-03-14 11:13 ` Gerd Hoffmann
2014-03-16 12:21 ` Michael S. Tsirkin
2014-03-13 10:40 ` Paolo Bonzini
2014-03-14 11:18 ` Gerd Hoffmann
2014-03-16 12:28 ` Michael S. Tsirkin [this message]
2014-03-17 4:36 ` Dave Airlie
2014-03-17 5:21 ` Dave Airlie
2014-03-17 9:50 ` Paolo Bonzini
2014-03-17 9:27 ` Paolo Bonzini
2014-03-17 11:01 ` Michael S. Tsirkin
2014-03-12 12:55 ` [Qemu-devel] [PATCH 4/4] virtio-vga: v1 Gerd Hoffmann
2014-03-12 13:55 ` [Qemu-devel] [PATCH 0/4] vga: new display devices Laszlo Ersek
2014-03-12 15:47 ` Gerd Hoffmann
2014-03-12 18:14 ` Laszlo Ersek
2014-03-13 8:22 ` Gerd Hoffmann
2014-03-13 8:41 ` Laszlo Ersek
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