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Re: [Xen-devel] [PATCH 03/28] libxl: Provide libxl__dm_support_*

On 01/07/2016 10:13 AM, Ian Campbell wrote:
> On Tue, 2015-12-22 at 18:44 +0000, Ian Jackson wrote:
>> This allows code elsewhere in libxl to find out what options a device
>> model executable supports.  This is done by searching the usage
>> message for fixed strings.
> Has anyone (ever, not necessarily a Xen person nor in this context)
> approached upstream QEMU about a machine readable output of some sort?
> I know libvirt does something similar to this, but they want to support
> older versions, whereas we at least have the luxury of not caring about
> versions before the point this code lands.

Since qemu 1.2.0, libvirt has been using the various QMP commands to probe for
qemu capabilities, instead of parsing help output.


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