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Date: Fri, 25 Jan 2019 10:10:32 +0000
From: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= <berrange@redhat.com>
Message-ID: <20190125101032.GA4498@redhat.com>
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Subject: Re: [Qemu-devel] Querying possible -cpu variants
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To: Pavel Dovgalyuk <dovgaluk@ispras.ru>
Cc: qemu-devel@nongnu.org, armbru@redhat.com, =?utf-8?B?J9Ck0YPRgNGB0L7QstCwINCd0LDRgtCw0LvQuNGPJw==?= <Natalia.Fursova@ispras.ru>, mdroth@linux.vnet.ibm.com

On Fri, Jan 25, 2019 at 12:58:04PM +0300, Pavel Dovgalyuk wrote:
> Hello.
> 
>  
> 
> We are making GUI for QEMU (which also should allow convenient record/replay command line
> generation): https://github.com/ispras/qemu-gui
> 
>  
> 
> To fill the combo box in CPU selection form we run QEMU with "-cpu help" command and parse its
> output.
> 
> The format of this list depends on target. Therefore our parsing code does not look good (and also
> may corrupt someday).
> 
>  
> 
> Is there a better way of requesting this information?
> 
>  
> 
> Or we should do one of the following:
> 
> 1.       Patch all targets and make the uniform "-cpu help" output format

Machine parsing of "help" output is not supported by the QEMU project.
This must all be done via the QMP interfaces.

> 2.       Add QMP command for requesting this list.

This already exists as the 'query-cpu-definitions' command


Regards,
Daniel
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