[PATCH] news: Document new Xen hypervisor features

[Jim Fehlig]

On 4/22/20 11:06 AM, Andrea Bolognani wrote:
> On Wed, 2020-04-22 at 10:43 -0600, Jim Fehlig wrote:
>> On 4/22/20 9:10 AM, Andrea Bolognani wrote:
>>> If you look at most (all?) other entries, they look like
>>>
>>>     subsystem: Change
>>>
>>> which is the same style we use for commit messages.
>>
>> If you really want to split hairs, the subsytem is 'libxl'. But I don't think
>> that is good for news since in general folks know of the 'Xen' project, but not
>> 'libxl'. However, now that the old xen driver is removed libxl could be renamed
>> to xen :-).
> 
> Yeah, I know of the history :) And I agree that we should probably
> rename the driver to xen[1]; as you probably remember, the standalone
> daemon is called virtxend and not virtlibxld already :)
> 
>>> Xen seems to be the outlier when it comes to following this style,
>>> both in release notes and to some extent in commit messages. It would
>>> be great if it could fall in line with the rest of the code base.
>>
>> Sorry for being out of line. I'll try to be more conscious of that in the future.
> 
> Nothing to apologize for! I just pointed it out so that we can, in
> time, get closer to a state of consistency :)
> 
> 
> [1] Although it will never be a full rename, because it still need to
>      handle libxl:// connection URLs.

libxl:// was never supported. DV rightly pointed out that introducing libxl:// 
as another way to connect to Xen violated one of libvirt's core principles of 
"minimize the change on the application stack as the lower layers of
virtualization evolves". It took me a while to find that bit of history :-)

https://www.redhat.com/archives/libvir-list/2011-March/msg00449.html

You'll also notice libxl:// is not mentioned on the Connect URI page

https://libvirt.org/uri.html

Regards,
Jim