Re: [Qemu-devel] [PATCH 3/3 v2] Add a pc-0-10 machine type for compatibility with 0.10.x

[Gerd Hoffmann]

On 07/08/09 15:44, Anthony Liguori wrote:
> Gerd Hoffmann wrote:
> > > +enum {
> > > + COMPAT_DEFAULT = 0,
> > > + COMPAT_0_10, /* compatible with qemu 0.10.x */
> > > +};
> >
> > Hmm. Just digged in the virtio blk code. Noticed some ppc machines
> > have virtio block devices too. So linking it to a machine type looks
> > wrong to me.
>
> No, it's right. A machine type is nothing more than a default device
> tree.

Plain "-M pc" has no virtio blk device.

> So basically, if we had device config files, it would look like:
>
> /usr/share/qemu/configs/pc-0-10.dts
> /usr/share/qemu/configs/pc-0-11.dts
> /usr/share/qemu/configs/pc -> /usr/share/qemu/configs/pc-0-11.dts

Doesn't work.  Your virtio blk device isn't in there.

cheers,
  Gerd