Re: [PATCH] qemu: Report all supported machine types in capabilities

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On Wed, Jun 17, 2015 at 14:18:23 -0400, John Ferlan wrote:
> 
> 
> On 06/12/2015 08:53 AM, Jiri Denemark wrote:
> > Some machine types are only reported as canonical names for other
> > machine types, which make it a bit harder to find what machine types are
> > supported by a specific QEMU binary. Ideally, one would just use
> > /capabilities/guest/arch[@name='...']/machine/text() XPath to get a list
> > of all supported machine types, but it doesn't work right now.
> > 
> > For example, we report
> > 
> >     <machine canonical='pc-i440fx-2.3' maxCpus='255'>pc</machine>
> > 
> > in guest capabilities, but the corresponding
> > 
> >     <machine maxCpus='255'>pc-i440fx-2.3</machine>
> > 
> > is missing.
> > 
> > This is a result of QMP probing. With "-machine ?" parsing QEMU sends
> > us two lines:
> > 
> > pc                   Standard PC (i440FX + PIIX, 1996) (alias of pc-i440fx-2.3)
> > pc-i440fx-2.3        Standard PC (i440FX + PIIX, 1996) (default)
> > 
> > while query-machines QMP command reports both in the same entry:
> > 
> > {"name": "pc-i440fx-2.3", "is-default": true, "cpu-max": 255, "alias": "pc"}
> > 
> > Let's make sure we always report separate <machine/> for both the
> > canonical name and its alias and using the canonical name as the default
> > machine type (i.e., inserting it before its alias) in case is-default is
> > true.
> > 
> > https://bugzilla.redhat.com/show_bug.cgi?id=1229666
> > 
> > Signed-off-by: Jiri Denemark <jdenemar@xxxxxxxxxx>
> > ---
> >  src/qemu/qemu_capabilities.c | 38 ++++++++++++++++++++++++++++++++++++++
> >  1 file changed, 38 insertions(+)
> > 
> 
> There's no existing test for this? I guess I would have expected to see
> differences in output and thus test adjustments as well.
> 
> The code seems to be doing what is stated though... and the
> tests/capabilityschemadata/caps-qemu-kvm.xml seems to show the output as
> desired.
> 
> ACK -

Pushed, thanks.

Jirka

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