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Re: [Qemu-devel] [PATCH] qxl: Export "mode" as a property
From: |
Alexander Larsson |
Subject: |
Re: [Qemu-devel] [PATCH] qxl: Export "mode" as a property |
Date: |
Tue, 20 Nov 2012 11:30:24 +0100 |
On tis, 2012-11-20 at 11:17 +0100, Gerd Hoffmann wrote:
> Hi,
>
> > I'm working on a kind of "troubleshooting log" option for gnome-boxes
> > which wants to record all these kinds of data so that a helpdesk or a
> > developer can help figuring out a problem with a guest.
>
> Understood.
>
> > Knowing if a qxl
> > driver is in use is an important piece of information. Additionally it
> > would be very nice if the driver could report a version string that I
> > could query (same for virtio driver, etc).
>
> Guest driver version information isn't available.
I know that, but it would be possible to add code to the driver to
register a version string.
> For QXL we could track which features are in use by the driver (i.e.
> whenever it uses sync/async io ports, ...) which might be good enougth
> for trouble shooting.
Might be useful for qxl developers, but not very useful to e.g. a
helpdesk employee trying to solve an issue for a user, as its kinda
low-level. Having the version string would be very nice here.
> For virtio it should be likewise easy to figure which device features
> the guest has activated.
>
> If you also wanna have this for non-qxl devices (which makes sense
> indeed) going the "info spice" route doesn't make that much sense
> though. It is probably more useful to add an (optional) "report device
> state" callback to devices which then returns this info in some useful
> format (qdict?), then wind this up as monitor command.
Sure, that would work too, as long as i can enumerate the devices and
get the data in a machine parsable format. Properties are already that,
although I realize that mixing configuration and monitoring in the same
set might be problematic.
- [Qemu-devel] [PATCH] qxl: Export "mode" as a property, Alexander Larsson, 2012/11/19
- Re: [Qemu-devel] [PATCH] qxl: Export "mode" as a property, Gerd Hoffmann, 2012/11/20
- Re: [Qemu-devel] [PATCH] qxl: Export "mode" as a property, Daniel P. Berrange, 2012/11/20
- Re: [Qemu-devel] [PATCH] qxl: Export "mode" as a property, Gerd Hoffmann, 2012/11/20
- Re: [Qemu-devel] [PATCH] qxl: Export "mode" as a property, Alon Levy, 2012/11/20
- Re: [Qemu-devel] [PATCH] qxl: Export "mode" as a property, Alexander Larsson, 2012/11/20
- Re: [Qemu-devel] [PATCH] qxl: Export "mode" as a property, Gerd Hoffmann, 2012/11/20
- Re: [Qemu-devel] [PATCH] qxl: Export "mode" as a property,
Alexander Larsson <=
- Re: [Qemu-devel] [PATCH] qxl: Export "mode" as a property, Gerd Hoffmann, 2012/11/20
- Re: [Qemu-devel] [PATCH] qxl: Export "mode" as a property, Alexander Larsson, 2012/11/20
Re: [Qemu-devel] [PATCH] qxl: Export "mode" as a property, Markus Armbruster, 2012/11/20