[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH v3] vmgenid: allow VM Generation ID modification
From: |
Benjamin Warren |
Subject: |
Re: [Qemu-devel] [PATCH v3] vmgenid: allow VM Generation ID modification via QMP/HMP |
Date: |
Fri, 2 Mar 2018 09:57:33 -0800 |
On Fri, Mar 2, 2018 at 2:57 AM, Daniel P. Berrangé <address@hidden>
wrote:
> On Fri, Mar 02, 2018 at 10:37:20AM +0200, Or Idgar wrote:
> > From: Or Idgar <address@hidden>
> >
> > This patch allow changing the Virtual Machine Generation
> > ID through QMP/HMP while the vm guest is running.
> > the spec (http://go.microsoft.com/fwlink/?LinkId=260709)
> > mentions that "when the generation ID changes, execute an
> > ACPI Notify operation on the generation ID device".
> > To test it we need the ability to set the generation ID
> > online. QMP/HMP allows that.
>
> If we want to test vmgenid, why don't we simply trigger one of
> the mgmt actions that are required to change vmgenid. eg do a
> savevm, followed by a loadvm to restore from snapshot. This would
> be better testing of the real world usage of this feature.
>
> I agree. Verifying functionality in a Windows guest is tricky, but in
Linux you can build and load this (old and badly written) device driver:
https://github.com/ben-skyportsystems/vmgenid-test
You should see the 'notices' number increment after restoring a snapshot.
Regards,
> Daniel
> --
> |: https://berrange.com -o- https://www.flickr.com/photos/
> dberrange :|
> |: https://libvirt.org -o-
> https://fstop138.berrange.com :|
> |: https://entangle-photo.org -o- https://www.instagram.com/
> dberrange :|
>
regards,
Ben
- [Qemu-devel] [PATCH v3] vmgenid: allow VM Generation ID modification via QMP/HMP, Or Idgar, 2018/03/02
- Re: [Qemu-devel] [PATCH v3] vmgenid: allow VM Generation ID modification via QMP/HMP, no-reply, 2018/03/02
- Re: [Qemu-devel] [PATCH v3] vmgenid: allow VM Generation ID modification via QMP/HMP, no-reply, 2018/03/02
- Re: [Qemu-devel] [PATCH v3] vmgenid: allow VM Generation ID modification via QMP/HMP, no-reply, 2018/03/02
- Re: [Qemu-devel] [PATCH v3] vmgenid: allow VM Generation ID modification via QMP/HMP, no-reply, 2018/03/02
- Re: [Qemu-devel] [PATCH v3] vmgenid: allow VM Generation ID modification via QMP/HMP, Dr. David Alan Gilbert, 2018/03/02
- Re: [Qemu-devel] [PATCH v3] vmgenid: allow VM Generation ID modification via QMP/HMP, no-reply, 2018/03/02
- Re: [Qemu-devel] [PATCH v3] vmgenid: allow VM Generation ID modification via QMP/HMP, Daniel P . Berrangé, 2018/03/02
- Re: [Qemu-devel] [PATCH v3] vmgenid: allow VM Generation ID modification via QMP/HMP,
Benjamin Warren <=
- Re: [Qemu-devel] [PATCH v3] vmgenid: allow VM Generation ID modification via QMP/HMP, no-reply, 2018/03/02
- Re: [Qemu-devel] [PATCH v3] vmgenid: allow VM Generation ID modification via QMP/HMP, Michael S. Tsirkin, 2018/03/13