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From: Gerd Hoffmann <kraxel@redhat.com>
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Subject: Re: [Qemu-devel] [RESEND PATCH v2] pciinit: Enable default VGA
	device
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To: Alex Williamson <alex.williamson@redhat.com>
Cc: Kevin O'Connor <kevin@koconnor.net>, seabios@seabios.org, qemu-devel@nongnu.org

  Hi,

> Turns out it's this:
> 
> commit 76e58028d28e78431f9de3cee0b3c88d807fa39d
> Author: Kevin O'Connor <kevin@koconnor.net>
> Date:   Wed Mar 6 21:50:09 2013 -0500
> 
>     acpi: Eliminate BDAT parameter passing to DSDT code.
>     
>     The "BDAT" construct is the only ACPI mechanism that relies on SeaBIOS
>     reserved memory.  Replace it with the SSDT based template system.
>     
>     Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

That is most likely dsdt + bios.bin not being in sync.  Simply using
'qemu -bios /path/to/seabios/out/bios.bin' doesn't fly due to qemu using
a non-matching dsdt then.

With qemu/master you can just use 'qemu -L /path/to/seabios/out' instead
and qemu will pick up both bios.bin and dsdt from the fresh seabios
build directory then (and anything else it doesn't find there from the
default locations).

HTH,
  Gerd