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Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13]
From: |
Mark McLoughlin |
Subject: |
Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities] |
Date: |
Fri, 12 Jun 2009 17:48:53 +0100 |
On Fri, 2009-06-12 at 11:12 -0500, Anthony Liguori wrote:
> Mark McLoughlin wrote:
> > On Fri, 2009-06-12 at 09:55 -0500, Anthony Liguori wrote:
> >
> >> Mark McLoughlin wrote:
> >>
> >>> On Wed, 2009-06-10 at 20:27 +0100, Jamie Lokier wrote:
> >>>
> >>> = Solution - Separate configuration from compat hints =
> >>>
> >>> As I suggested before:
> >>>
> >>> - Allow the VM manager to dump compat hints; this would be an opaque
> >>> file format, more like the savevm format than a config file
> >>>
> >>>
> >> How is compat hints different from a device tree?
> >>
> >> In my mind, that's what compat hints is. I don't see another sane way
> >> to implement it.
> >>
> >
> > A device tree with a different purpose than a config file.
> >
> > In its simplest form it could be a device tree with a version number for
> > each device[1].
> >
>
> I think the point is that you don't need version numbers if you have a
> proper device tree.
How do you add a new attribute to the device tree and, when a supplied
device tree lacking said attribute, distinguish between a device tree
from an old version of qemu (i.e. use the old default) and a partial
device tree from the VM manager (i.e. use the new default) ?
> NB the device tree contains no host configuration information.
So, it wouldn't e.g. include the path to the image file for a block
device? That would always be specified on the command line?
Cheers,
Mark.
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], (continued)
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Avi Kivity, 2009/06/15
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Anthony Liguori, 2009/06/15
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Avi Kivity, 2009/06/15
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Anthony Liguori, 2009/06/15
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Avi Kivity, 2009/06/15
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Gerd Hoffmann, 2009/06/15
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Avi Kivity, 2009/06/14
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Anthony Liguori, 2009/06/12
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Mark McLoughlin, 2009/06/12
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Anthony Liguori, 2009/06/12
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities],
Mark McLoughlin <=
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Avi Kivity, 2009/06/14
- [Qemu-devel] Re: Configuration vs. compat hints, Markus Armbruster, 2009/06/15
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Mark McLoughlin, 2009/06/15
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Avi Kivity, 2009/06/15
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Anthony Liguori, 2009/06/15
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Avi Kivity, 2009/06/15
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Anthony Liguori, 2009/06/15
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Avi Kivity, 2009/06/15
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Mark McLoughlin, 2009/06/15
- Re: Configuration vs. compat hints [was Re: [Qemu-devel] [PATCHv3 03/13] qemu: add routines to manage PCI capabilities], Anthony Liguori, 2009/06/15