Re: [Xen-devel] [PATCH] libxl: prefer qdisk for <driver name='file'>

[Jim Fehlig <jfehlig@xxxxxxxx>]

Ian Campbell wrote:
> On Fri, 2014-06-20 at 15:07 -0600, Jim Fehlig wrote:
>   
>> The libxl driver currently sets the disk backend to
>> LIBXL_DISK_BACKEND_TAP when <driver name='file'> is specified
>> in the <disk> config.  qdisk should be prefered with this
>> configuration, otherwise existing configuration such as the
>> following, which worked with the old Xen driver, will not work
>> with the libxl driver
>>     
>
> OOI why not let libxl pick the most appropriate backend for (most of)
> these alternatives?
>   

I think the libvirt approach is to be a bit more explicit, instead of
relying on hypervisor defaults that might change over time.  I'm quite
sure this is the approach danpb has always advocated.

Regards,
Jim


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