Re: Disk naming (Was Re: [Xen-devel] [PATCH] Guest boot loadersupport [1/2])

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

On Friday 15 April 2005 21:46, Adam Heath wrote:
> On Fri, 15 Apr 2005, Mark Williamson wrote:
> > > Er, no.  The blkback allocates it's own id, which is passed around
> > > between them.
> >
> > But how would you tell the blkback what file it was meant to be accessing
> > before it allocates that ID.
>
> xend would tell the blkback driver(in dom0) what it s/b accessing, before
> constructing the domU instance.

But Xend configures the blkback driver using the control interface messages, 
so the sizing of the ctrlif messages is still a problem (that was what 
Anthony was saying, I think).

That said, there would, of course, be ways this could be fixed.  One nice side 
effect of supporting passing filenames to the blkback would be the ability to 
configure file based block devices when the backend is not dom0.

Cheers,
Mark

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