From: "Michael S. Tsirkin" <mst@redhat.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: glommer@redhat.com, qemu-devel@nongnu.org,
Alexander Graf <agraf@suse.de>,
Kevin O'Connor <kevin@koconnor.net>,
Sebastian Herbszt <herbszt@gmx.de>
Subject: Re: Proper support for PCI-based option rom loading (was Re: [Qemu-devel] Re: qdev property bug?)
Date: Wed, 16 Dec 2009 15:52:34 +0200 [thread overview]
Message-ID: <20091216135234.GA29589@redhat.com> (raw)
In-Reply-To: <4B28E3DB.2030106@redhat.com>
On Wed, Dec 16, 2009 at 02:42:51PM +0100, Gerd Hoffmann wrote:
> Hi,
>
>> What will happen when we find a bug in one of ROMs
>> I wonder? I think we will need to keep the old ROM
>> around, and put it in as part of compat machine type?
>
> What do you want?
> Old way to load the rom?
> Old rom binaries (i.e. etherboot)?
> Both?
>
> The new way to load the roms is a guest-visible change (devices get a
> rom bar they had not before), so we might want to have a backward
> compatibility property for that. Not sure whenever this is a problem.
>
> Allowing old ROMs isn't easy as they don't support BEV.
>
> cheers,
> Gerd
I am mostly concerned with migrating between qemu versions with
different roms, while guest was in the middle of running ROM.
This might be solved if we migrated ROM content together with
the device and put some padding in ROM content so that
size can be kept constant.
--
MST
next prev parent reply other threads:[~2009-12-16 13:55 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20091213200259.GB25615@redhat.com>
[not found] ` <4B260683.8000506@redhat.com>
[not found] ` <20091214093414.GA30459@redhat.com>
[not found] ` <4B26090B.8010707@redhat.com>
[not found] ` <20091214094406.GB32140@redhat.com>
[not found] ` <4B261082.4030806@redhat.com>
2009-12-14 10:59 ` [Qemu-devel] Re: qdev property bug? Michael S. Tsirkin
2009-12-14 11:55 ` Alexander Graf
2009-12-14 13:24 ` Michael S. Tsirkin
2009-12-14 13:35 ` Alexander Graf
2009-12-14 14:01 ` Michael S. Tsirkin
2009-12-14 17:00 ` Glauber Costa
2009-12-14 14:11 ` Anthony Liguori
2009-12-14 14:11 ` Michael S. Tsirkin
2009-12-14 14:13 ` Michael S. Tsirkin
2009-12-14 14:25 ` Anthony Liguori
2009-12-14 16:20 ` Michael S. Tsirkin
2009-12-14 19:12 ` Sebastian Herbszt
2009-12-14 19:20 ` Michael S. Tsirkin
2009-12-14 19:38 ` Sebastian Herbszt
2009-12-14 19:33 ` Anthony Liguori
2009-12-14 19:42 ` Michael S. Tsirkin
2009-12-14 19:59 ` Anthony Liguori
2009-12-14 20:20 ` Michael S. Tsirkin
2009-12-14 20:32 ` Gerd Hoffmann
2009-12-14 20:34 ` Michael S. Tsirkin
2009-12-14 20:36 ` Michael S. Tsirkin
2009-12-14 20:44 ` Anthony Liguori
2009-12-14 20:51 ` Michael S. Tsirkin
2009-12-15 2:37 ` Proper support for PCI-based option rom loading (was Re: [Qemu-devel] Re: qdev property bug?) Anthony Liguori
2009-12-15 3:55 ` Kevin O'Connor
2009-12-15 4:34 ` Kevin O'Connor
2009-12-15 13:15 ` Anthony Liguori
2009-12-15 14:20 ` Anthony Liguori
2009-12-15 14:33 ` [SeaBIOS] " Avi Kivity
2009-12-15 17:35 ` Anthony Liguori
2009-12-15 23:54 ` Kevin OConnor
2009-12-16 0:41 ` Anthony Liguori
2009-12-16 4:20 ` Kevin O'Connor
2009-12-15 9:17 ` Gerd Hoffmann
2009-12-15 10:14 ` Gerd Hoffmann
2009-12-15 19:10 ` Anthony Liguori
2009-12-16 12:03 ` Gerd Hoffmann
2009-12-16 12:39 ` Michael S. Tsirkin
2009-12-16 13:42 ` Gerd Hoffmann
2009-12-16 13:52 ` Michael S. Tsirkin [this message]
2009-12-16 14:12 ` Kevin O'Connor
2009-12-16 14:14 ` Michael S. Tsirkin
2009-12-16 14:17 ` Gleb Natapov
2009-12-16 14:15 ` Michael S. Tsirkin
2009-12-16 14:18 ` Gleb Natapov
2009-12-16 14:24 ` Michael S. Tsirkin
2009-12-16 14:28 ` Gleb Natapov
2009-12-16 14:28 ` Michael S. Tsirkin
2009-12-15 19:35 ` Anthony Liguori
2009-12-15 21:17 ` Michael S. Tsirkin
2009-12-15 21:41 ` Anthony Liguori
2009-12-16 0:33 ` Chris Wright
2009-12-16 1:32 ` Anthony Liguori
2009-12-16 4:57 ` Kevin O'Connor
2009-12-16 12:31 ` Gerd Hoffmann
2009-12-16 16:22 ` Gerd Hoffmann
2009-12-17 1:24 ` Kevin O'Connor
2009-12-17 9:45 ` Gerd Hoffmann
2009-12-17 9:50 ` Michael S. Tsirkin
2009-12-17 10:40 ` Gerd Hoffmann
2009-12-16 14:41 ` Gerd Hoffmann
2009-12-16 14:41 ` Michael S. Tsirkin
2009-12-16 14:50 ` [SeaBIOS] " Gleb Natapov
2009-12-15 13:16 ` Anthony Liguori
2009-12-15 21:24 ` Sebastian Herbszt
2009-12-15 21:31 ` Anthony Liguori
2009-12-15 21:38 ` Sebastian Herbszt
2009-12-15 22:00 ` Anthony Liguori
2009-12-17 21:14 ` Sebastian Herbszt
2009-12-16 4:29 ` Kevin O'Connor
2009-12-16 12:01 ` Gerd Hoffmann
2009-12-15 19:21 ` Anthony Liguori
2009-12-15 21:19 ` Michael S. Tsirkin
2009-12-15 21:45 ` Anthony Liguori
2009-12-15 21:52 ` Michael S. Tsirkin
2009-12-15 21:57 ` Anthony Liguori
2009-12-15 21:59 ` Michael S. Tsirkin
2009-12-15 22:26 ` Anthony Liguori
2009-12-15 22:51 ` Sebastian Herbszt
2009-12-16 14:49 ` Gerd Hoffmann
2009-12-17 20:33 ` Sebastian Herbszt
2009-12-15 10:51 ` Michael S. Tsirkin
2009-12-15 19:05 ` Anthony Liguori
2009-12-15 19:06 ` Anthony Liguori
2009-12-14 20:43 ` [Qemu-devel] Re: qdev property bug? Anthony Liguori
2009-12-14 20:50 ` Michael S. Tsirkin
2009-12-14 21:05 ` Anthony Liguori
2009-12-14 21:36 ` Sebastian Herbszt
2009-12-14 21:52 ` Anthony Liguori
2009-12-14 22:14 ` Sebastian Herbszt
2009-12-15 4:23 ` Kevin O'Connor
2009-12-14 20:47 ` Sebastian Herbszt
2009-12-14 20:56 ` Anthony Liguori
2009-12-14 20:38 ` Sebastian Herbszt
2009-12-14 19:51 ` Sebastian Herbszt
2009-12-14 14:22 ` Anthony Liguori
2009-12-14 17:03 ` Glauber Costa
2009-12-14 17:01 ` Glauber Costa
2009-12-14 14:10 ` Anthony Liguori
2009-12-14 14:52 ` Gerd Hoffmann
2009-12-14 14:54 ` Anthony Liguori
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