[SeaBIOS] seabios 1.7.3 breaks booting windows 7? (was: [ANNOUNCE] SeaBIOS 1.7.3)

[Cole Robinson]

On 07/07/2013 11:41 PM, Kevin O'Connor wrote:
> The 1.7.3 version of SeaBIOS has now been released.  For more
> information on the release, please see:
>
> http://seabios.org/Releases
>
> New in this release:
> Initial support for using SeaBIOS as a UEFI Compatibility Support
> Module (CSM)
> Support for detecting and using ACPI reboot ports.
> By default, all 16bit entry points now use an internal stack to
> reduce stack footprint.
> Floppy controller code has been rewritten to improve
> compatibility. Non-standard floppy sizes now work again with recent
> QEMU versions.
> Several bug fixes and code cleanups

Just gave it a spin, breaks booting a Windows 7 VM for me. Using qemu-1.4.2
from Fedora 19 as well as qemu.git.

Here's the BSOD (F19 qemu and seabios 1.7.3):
http://crobinso.fedorapeople.org/misc/seabios_1.7.3_windows_err.png

I bisected to:

commit 76e58028d28e78431f9de3cee0b3c88d807fa39d
Author: Kevin O'Connor 
Date:   Wed Mar 6 21:50:09 2013 -0500

acpi: Eliminate BDAT parameter passing to DSDT code.

Reproducing command line:

x86_64-softmmu/qemu-system-x86_64 \
    -bios /usr/share/seabios/bios.bin \
    -machine pc-i440fx-1.4,accel=kvm,usb=off \
    -m 4096 -smp 4 \
    -sdl -vga std \
    win7.qcow2

Let me know if there's any more info I can provide.

Thanks,
Cole