Re: [Xen-devel] [PATCH v5 2/5] libxl: add query function for backend support by device model

[Juergen Gross <jgross@xxxxxxxx>]

On 30/03/16 16:09, Wei Liu wrote:
> On Wed, Mar 30, 2016 at 04:02:20PM +0200, Juergen Gross wrote:
>> On 30/03/16 15:53, Wei Liu wrote:
>>> On Wed, Mar 30, 2016 at 02:05:55PM +0200, Juergen Gross wrote:
>>>> Add a function to query whether the device model is supporting a
>>>> specific backend type. The device model is writing the supported
>>>> backend types to Xenstore on startup. The new query function checks
>>>> for the appropriate entry to be present.
>>>>
>>>> As not all versions of qemu are capable to indicate support of
>>>> specific backends the query function is to be called with an indicator
>>>> whether the default return value should be "supported" (in case qemu
>>>> doesn't know set any support information) or "not supported".
>>>>
>>>> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
>>>
>>> The code itself looks straightforward enough.
>>>
>>> But note that this is a new protocol that needs to be supported
>>> essentially forever. I've CC QEMU maintainers for their input.
>>
>> Okay, I'll send the qemu patch now.
>>
> 
> And also a patch to docs/misc/xenstore-paths.markdown please.

Aah, sure.


Juergen


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