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Date: Tue, 9 Jun 2015 08:38:00 +0200
From: "Michael S. Tsirkin" <mst@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH v2 0/4]  acpi: xsdt support
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To: Paolo Bonzini <pbonzini@redhat.com>
Cc: ghammer@redhat.com, imammedo@redhat.com, lersek@redhat.com, qemu-devel@nongnu.org, shannon.zhao@linaro.org

On Tue, Jun 09, 2015 at 08:35:38AM +0200, Michael S. Tsirkin wrote:
> On Tue, Jun 09, 2015 at 02:02:31AM -0400, Paolo Bonzini wrote:
> > I would just patch OVMF to ignore the RSDT if there is an XSDT.
> > 
> > Alternatively, can you check for ACPI 2.0 support via _OSI, and load the ACPI 2.0 bits via LoadTable? Hopefully XP does not BSOD if the invalid (for ACPI 1.0) opcodes are in a Then block or in a separate method... Then you can use just an RSDT.
> > 
> > Paolo
> 
> 
> It does BSOD.
> Skipping RSDT sounds good.

Thought a full fix would be nicer - I suspect we'll have more things like this
in the future.