[FIX] QEMU and ACPI

Alex Kozlov spam at rm-rf.kiev.ua
Thu Feb 1 21:55:11 UTC 2007


On Thu, Feb 01, 2007 at 03:02:53PM -0500, Jung-uk Kim wrote:
> You may have noticed recent QEMU does not boot FreeBSD/amd64 SMP guest 
> on FreeBSD/amd64 -CURRENT host (i.e., you may have seen 'invalid RSDT 
> checksum' error while booting).  That is because the QEMU BIOS (which 
> is actually Bochs BIOS with little modification) has a little bug in 
> it.  If you experience the issue, grab a file from here:
> http://people.freebsd.org/~jkim/qemu-bios.bin
> and replace /usr/local/share/qemu/bios.bin with it.  The QEMU patch 
> against Bochs BIOS is here:
> http://people.freebsd.org/~jkim/qemu-bios.diff
> Basically it wasn't clearing RSDT before checksum calculation. ;-)
Also useful - patch for removing DMA timeout at boot time in FreeBSD guest:
http://www.mail-archive.com/qemu-devel@nongnu.org/msg08126.html


--
Adios


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