[Qemu-devel] Re: [PATCH][STABLE] kvm: Fix cpuid initialization

[Jan Kiszka <jan.kiszka@web.de>]

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Christoph Hellwig wrote:
> On Mon, Apr 13, 2009 at 10:53:06AM +0200, Jan Kiszka wrote:
>> [ Looks like we need more kvm users via upstream qemu... ]
>>
>> Fix (more or less) spurious guest boot failures due to corrupted cpuid
>> states. The reason was insufficient initialization of cpuid entries
>> before passing them to the kernel.
>>
>> At this chance also fix improper entry pointer progression and simplify
>> the code a bit.
> 
> Is that guest kernel stuck on the "testing hlt" message in the Linux
> kernel with that one?  I've seen that hang for a while now, but haven't
> been able to bisect it yet.

Maybe. For me it was "This kernel requires an XXX CPU, but only detected
an *i086* CPU." from arch/x86/boot/cpu.c. But if the hlt test depends on
certain cpuid values to do the right thing, your case may be fixed, too.
Does qemu from the kvm tree work for you?

Jan


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