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Re: [Qemu-devel] [PATCH] virtio-spec: clarify ro/rw bits and updating ru
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] [PATCH] virtio-spec: clarify ro/rw bits and updating rule of virtio-net status field |
Date: |
Wed, 21 Mar 2012 00:48:05 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, Mar 20, 2012 at 09:35:18PM +1030, Rusty Russell wrote:
> On Tue, 20 Mar 2012 14:20:21 +0800, Jason Wang <address@hidden> wrote:
> > This patch clarifies VIRTIO_NET_S_LINK_UP as a read-only bit and
> > VIRTIO_NET_S_ANNOUNCE as a read-writable bit. Also introduce the write 1 to
> > clear semantics for all read-writable bits of config status field. This
> > could
> > help to reduce the config status field updating race between host and guest
> > and
> > also simplify the implementation.
> >
> > Signed-off-by: Jason Wang <address@hidden>
>
> This approach assumes an active config field, which neither lguest nor
> S/390 have.
>
> Thanks,
> Rusty.
What does 'active' mean in this context?
> --
> How could I marry someone with more hair than me? http://baldalex.org