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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] RE: [PATCH] remove _PS0 from the DSDTo
On 28/02/2011 15:33, "Stefano Stabellini" <stefano.stabellini@xxxxxxxxxxxxx> wrote: > 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. Stefano: Your patch should have deleted the _PS3 method along with _PS0. It is an ACPI requirement that if you define an object to turn a device off (i.e., _PS3 in this case) then you must also supply a symmetric object to turn on the device (i.e., _PS0). So you must remove both, and there's no reason not to since they both only contain debug stuff. I suggest try again and see if _PS3 removal solves Allen's Windows boot issue. -- Keir > However there is a simple workaround for it: just disable acpi in the > config file of the VM. > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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