[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH 2/2] qxl: change rom size to 8192
From: |
Gerd Hoffmann |
Subject: |
Re: [Qemu-devel] [PATCH 2/2] qxl: change rom size to 8192 |
Date: |
Fri, 08 Feb 2013 10:36:28 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:10.0.12) Gecko/20130108 Thunderbird/10.0.12 |
Hi,
>> foo.img generated with stock qemu 1.3.1, migration fails with git
>> head, still
>> fails after reverting the seabios 1.7.2 update which supposedly
>> causes other
>> migrate issues (commit 3588185b8396eb97fd9efd41c2b97775465f67c4)
>
> So this is by design - that patch changes the rom size for revision 4 (which
> is the default for qemu 1.3.1) from 16384 bytes to 8192. This breaks
> migration from previously created revision 4 images... But it unbreaks
> migration from other revisions. Different things that could be done: do a
> special migration hook to copy from src 16384 byte rom bar to dst 8192 byte
> rom bar. Gerd, what do you think?
So the change making the rpm 16k was before 1.3, the fix thereafter, and
now we have migration 1.2 -> 1.3 broken (maybe masked by -M 1.2
defaulting to qxl rev 3), 1.3 -> 1.4 broken and 1.2 -> 1.4 working, correct?
So a compat property changing the rom size to 16k for pc-1.3 should do
the trick I think.
cheers,
Gerd
- Re: [Qemu-devel] [PATCH 2/2] qxl: change rom size to 8192, Cole Robinson, 2013/02/06
- Re: [Qemu-devel] [PATCH 2/2] qxl: change rom size to 8192, Cole Robinson, 2013/02/06
- Re: [Qemu-devel] [PATCH 2/2] qxl: change rom size to 8192, Alon Levy, 2013/02/07
- Re: [Qemu-devel] [PATCH 2/2] qxl: change rom size to 8192, Cole Robinson, 2013/02/07
- Re: [Qemu-devel] [PATCH 2/2] qxl: change rom size to 8192, Alon Levy, 2013/02/07
- Re: [Qemu-devel] [PATCH 2/2] qxl: change rom size to 8192,
Gerd Hoffmann <=
- Re: [Qemu-devel] [PATCH 2/2] qxl: change rom size to 8192, Cole Robinson, 2013/02/08
- Re: [Qemu-devel] [PATCH 2/2] qxl: change rom size to 8192, Cole Robinson, 2013/02/19
- Re: [Qemu-devel] [PATCH 2/2] qxl: change rom size to 8192, Cole Robinson, 2013/02/20
- Re: [Qemu-devel] [PATCH 2/2] qxl: change rom size to 8192, Gerd Hoffmann, 2013/02/21