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xen-devel
[Xen-devel] RE: [PATCH] remove _PS0 from the DSDTo
On Sat, 26 Feb 2011, Kay, Allen M wrote:
> Hi Stefano,
>
> I just tried this patch booting Win7-64bit in following two configurations:
>
> 1) Passthrough two NIC devices - onboard + PCIe E1000
> 2) Passthrough SNB IGD + USB + audio + NIC
>
> In both cases, Windows failed to boot complaining about BIOS is not ACPI
> compliant.
>
> If I don't passthrough any devices, Windows can boot successfully.
>
In that case we have a problem because I don't see any other way we
could fix the issue in a way that is acceptable for xen 4.1.
We could emulate PM capabilities in qemu even for devices that don't
support it or make the presence of _PS0 conditional on the presence of
PM capabilities on the devices. In both cases the fix will miss 4.1.
However there is a simple workaround for it: just disable acpi in the
config file of the VM.
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