[Qemu-devel] Re: [PATCH 19/19] Add a -capabilities argument to allow easy query for static QEMU info

[Daniel P. Berrange]

On Mon, Jun 07, 2010 at 06:04:24PM +0200, Paolo Bonzini wrote:
> On 06/07/2010 04:42 PM, Daniel P. Berrange wrote:
> >The QMP monitor provides a number of commands for querying info about
> >the QEMU binary capabilities. Given that these commands don't take
> >any options and just return static data, requiring the use of QMP is
> >unnecessarily onerous. This adds a new '-capabilities' command line
> >argument as a syntactic sugar for accessing the QMP commands that
> >just return static QEMU binary capabilities.
> >
> >Setting the '-capabilities' argument causes QEMU to output the requested
> >data on stdout, pretty printed in JSON format. The argument expects an
> >associated value to identify the data to be printed. This can be one of
> >the strings version|machines|devices|cputypes|target|commands|argv|netdev
> >
> >To query all possible data at once, the shorthand 'all' is allowed.
> >
> >The output is a QDict where the key is the type of data requested, and
> >the value is the JSON data from the associated monitor command. For
> >example:
> 
> A lot of this patch and the other monitor.c changes you had can likely 
> be moved in a capabilities.c file?

Yeah, I didn't much like adding more to vl.c or monitor.c. I can move this
to a new file, or a different existing one if there are any other better
suggestions

Daniel
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