Re: [PATCH] qemu: Report shutdown event details

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On 04/12/2017 09:48 AM, Martin Kletzander wrote:
> QEMU will likely report the details of it shutting down, particularly
> the system it received in case it was killed.  We should forward that
> information along.  Since the only way we can extend information
> provided to the user is adding event details, we might as well emit
> multiple events (one with the reason for the shutdown and keep the one
> for the shutdown being finished for clarity and compatibility).
> 
> Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1384007
> 
> Signed-off-by: Martin Kletzander <mkletzan@xxxxxxxxxx>
> ---
> This is waiting for a patch in QEMU [1] that I tested this with.
> 
> [1] https://lists.gnu.org/archive/html/qemu-devel/2017-04/msg01098.html

The discussion on the qemu patch says it will probably not expose signal
names, but merely a boolean of guest- vs. host-initiated.  So you'll
have to respin on top of whatever qemu settles on, but the idea is sane.
 You are correct that since we can't expand the existing event, we have
to add a second one, and wire up both events to fire at once (we've done
it before, so there's precedence).

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

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