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[Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification |
Date: |
Mon, 11 Oct 2010 16:46:57 +0100 |
User-agent: |
Mutt/1.5.20 (2009-06-14) |
On Mon, Oct 11, 2010 at 05:39:01PM +0200, Avi Kivity wrote:
> On 10/11/2010 05:30 PM, Stefan Hajnoczi wrote:
> >>
> >> It was discussed before, but I don't think we came to a conclusion. Are
> >> there any circumstances under which you don't want to set the
> >> QED_CF_BACKING_FORMAT flag?
> >
> >I suggest the following:
> >
> >QED_CF_BACKING_FORMAT_RAW = 0x1
> >
> >When set, the backing file is a raw image and should not be probed for
> >its file format. The default (unset) means that the backing image file
> >format may be probed.
> >
> >Now the backing_fmt_{offset,size} are no longer necessary.
>
> Should it not be an incompatible option? If the backing disk starts
> with a format magic, it will be probed by an older qemu,
> incorrectly.
Agreed, it should be a non-compat feature bit.
Stefan
- [Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification, (continued)
- [Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification, Avi Kivity, 2010/10/11
- Re: [Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification, Anthony Liguori, 2010/10/11
- Re: [Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification, Avi Kivity, 2010/10/11
- Re: [Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification, Anthony Liguori, 2010/10/11
- Re: [Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification, Avi Kivity, 2010/10/11
- Re: [Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification, Anthony Liguori, 2010/10/11
- Re: [Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification, Avi Kivity, 2010/10/12
[Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification, Kevin Wolf, 2010/10/11
- [Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification, Stefan Hajnoczi, 2010/10/11
- [Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification, Avi Kivity, 2010/10/11
- [Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification,
Stefan Hajnoczi <=
- Re: [Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification, Anthony Liguori, 2010/10/11
- Re: [Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification, Anthony Liguori, 2010/10/11
- Re: [Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification, Kevin Wolf, 2010/10/12
- Re: [Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification, Stefan Hajnoczi, 2010/10/12
- Re: [Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification, Anthony Liguori, 2010/10/12
[Qemu-devel] Re: [PATCH v2 3/7] docs: Add QED image format specification, Kevin Wolf, 2010/10/11
[Qemu-devel] [PATCH v2 4/7] qed: Add QEMU Enhanced Disk image format, Stefan Hajnoczi, 2010/10/08
[Qemu-devel] [PATCH v2 6/7] qed: Read/write support, Stefan Hajnoczi, 2010/10/08