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Re: [Qemu-devel] [PATCH] dataplane: support viostor virtio-pci status bi


From: Michael S. Tsirkin
Subject: Re: [Qemu-devel] [PATCH] dataplane: support viostor virtio-pci status bit setting
Date: Mon, 21 Jan 2013 12:05:16 +0200

On Mon, Jan 21, 2013 at 10:36:18AM +0100, Stefan Hajnoczi wrote:
> On Sat, Jan 19, 2013 at 09:59:57AM +0200, Vadim Rozenfeld wrote:
> > On Friday, January 18, 2013 05:59:37 PM Stefan Hajnoczi wrote:
> > > On Thu, Jan 17, 2013 at 04:46:54PM +0100, Stefan Hajnoczi wrote:
> > > > The viostor virtio-blk driver for Windows does not use the
> > > > VIRTIO_CONFIG_S_DRIVER bit.  It only sets the VIRTIO_CONFIG_S_DRIVER_OK
> > > > bit.
> > Will be added in the next build.
> 
> Nice, thanks.  For compatibility with existing viostor drivers QEMU will
> carry this patch.
> 
> Stefan

I still think it's wrong: when DRIVER_OK is cleared you should stop
device I think even if DRIVER is set.
This patch keeps dataplane running if DRIVER is set.



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