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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.