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From: "Michael S. Tsirkin" <mst@redhat.com>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: qemu-devel@nongnu.org,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	Jason Wang <jasowang@redhat.com>,
	linux-kernel@vger.kernel.org,
	virtualization@lists.linux-foundation.org
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	[thread overview]
Message-ID: <20120320224805.GA4997@redhat.com> (raw)
In-Reply-To: <87ty1jpm6p.fsf@rustcorp.com.au>

On Tue, Mar 20, 2012 at 09:35:18PM +1030, Rusty Russell wrote:
> On Tue, 20 Mar 2012 14:20:21 +0800, Jason Wang <jasowang@redhat.com> 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 <jasowang@redhat.com>
> 
> 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

  reply	other threads:[~2012-03-20 22:47 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-20  6:20 [Qemu-devel] [PATCH] virtio-spec: clarify ro/rw bits and updating rule of virtio-net status field Jason Wang
2012-03-20 11:05 ` Rusty Russell
2012-03-20 22:48   ` Michael S. Tsirkin [this message]
2012-03-20 23:40     ` Rusty Russell
2012-03-21  6:37       ` Michael S. Tsirkin
2012-03-22  4:30         ` Rusty Russell
2012-03-23  2:57           ` Jason Wang

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