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Re: [Qemu-devel] [PATCH RFC v6 05/20] virtio: support more feature bits


From: Cornelia Huck
Subject: Re: [Qemu-devel] [PATCH RFC v6 05/20] virtio: support more feature bits
Date: Wed, 28 Jan 2015 16:59:45 +0100

On Thu, 22 Jan 2015 12:43:43 +1100
David Gibson <address@hidden> wrote:

> On Thu, Dec 11, 2014 at 02:25:07PM +0100, Cornelia Huck wrote:
> > With virtio-1, we support more than 32 feature bits. Let's extend both
> > host and guest features to 64, which should suffice for a while.
> > 
> > vhost and migration have been ignored for now.
> 
> [snip]
> 
> > diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
> > index f6c0379..08141c7 100644
> > --- a/include/hw/virtio/virtio.h
> > +++ b/include/hw/virtio/virtio.h
> > @@ -55,6 +55,12 @@
> >  /* A guest should never accept this.  It implies negotiation is broken. */
> >  #define VIRTIO_F_BAD_FEATURE               30
> >  
> > +/* v1.0 compliant. */
> > +#define VIRTIO_F_VERSION_1              32
> 
> This is already in the kernel header, isn't it?
> 

Yes. But nearly all files include this header but not the kernel
header.




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