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Re: [Qemu-devel] [PATCH] qdev: Assign a default device ID when none is p
From: |
Hani Benhabiles |
Subject: |
Re: [Qemu-devel] [PATCH] qdev: Assign a default device ID when none is provided. |
Date: |
Thu, 9 Jan 2014 19:18:21 +0100 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Wed, Jan 08, 2014 at 06:34:01PM +0100, Paolo Bonzini wrote:
> Il 08/01/2014 18:17, Hani Benhabiles ha scritto:
> > For this reason, the loop in assign_device_name() specifically check that
> > the ID
> > doesn't exist already and uses the next value if it does.
> >
> > How would something like:
> > (qemu) device_add virtio-net-pci
> > ==> ID: virtio-net-pci.0
> >
> > Be more problematic than:
> > (qemu) device_add virtio-net-pci,id=virtio-net-pci.0
>
> (qemu) device_add virtio-net-pci
> (qemu) device_add virtio-net-pci,id=virtio-net-pci.0
>
> works without your patches, fails with them (IIUC).
It would fail with a clear and descriptive message (Duplicate ID) which is no
different than when a user uses tries to do so manually.
Without the patch, how does a user unplug a device for which he didn't specify
an ID (eg. forgotten, added quickly...)
It is even more confusing with other commands like info networks.
(qemu) device_add virtio-net-pci
(qemu) device_add virtio-net-pci,id=foo
(qemu) info network
virtio-net-pci.0:
index=0,type=nic,model=virtio-net-pci,macaddr=52:54:00:12:34:56
foo: index=0,type=nic,model=virtio-net-pci,macaddr=52:54:00:12:34:57
(qemu) device_del foo
(qemu) device_del virtio-net-pci.0
Device 'virtio-net-pci.0' not found
If the naming scheme is an issue, could something like starting it with one or
two underscores better suited ?
Cheers,
Hani.
- [Qemu-devel] [PATCH] qdev: Assign a default device ID when none is provided., Hani Benhabiles, 2014/01/07
- Re: [Qemu-devel] [PATCH] qdev: Assign a default device ID when none is provided., Markus Armbruster, 2014/01/08
- Re: [Qemu-devel] [PATCH] qdev: Assign a default device ID when none is provided., Hani Benhabiles, 2014/01/08
- Re: [Qemu-devel] [PATCH] qdev: Assign a default device ID when none is provided., Paolo Bonzini, 2014/01/08
- Re: [Qemu-devel] [PATCH] qdev: Assign a default device ID when none is provided.,
Hani Benhabiles <=
- Re: [Qemu-devel] [PATCH] qdev: Assign a default device ID when none is provided., Paolo Bonzini, 2014/01/09
- Re: [Qemu-devel] [PATCH] qdev: Assign a default device ID when none is provided., Markus Armbruster, 2014/01/10
- Re: [Qemu-devel] [PATCH] qdev: Assign a default device ID when none is provided., Andreas Färber, 2014/01/10
- Re: [Qemu-devel] [PATCH] qdev: Assign a default device ID when none is provided., Markus Armbruster, 2014/01/10