[Qemu-devel] Re: Breakage with local APIC routing

[Jan Kiszka]

Aurelien Jarno wrote:
> On Sun, Aug 17, 2008 at 07:32:28PM +0200, Stefan Weil wrote:
>> Johannes Schindelin schrieb:
>>> Hi,
>>>
>>> due to the change in revision 3371 (well, at that time, CVS was used, 
>>> which was no better than Subversion) installation of win64 is broken in 
>>> QEmu.  The commit message reads like this:
>>>
>>>     Don't route PIC interrupts through the local APIC if the local 
>>>     APIC config says so. By Ari Kivity.
>>>
>>> A bit of research showed that the patch was actually originally from Qing 
>>> He, but he told me privately that the part that actually broke win64 (the 
>>> removal of the call to cpu_reset_interrupt(), as opposed to moving that 
>>> call into the "else" condition) was not part of his patch.
>>>
>>> Unfortunately, a lot has been done to the APIC handling in the meantime, 
>>> so it is not a simple matter of a revert.
>>>
>>> Being a complete idiot when it comes to APICs, I have no clue how to fix 
>>> the issue.
>>>
>>> However, I am quite willing to test whatever patch is thrown at me.
>>>
>>> Can somebody help?
>>>
>>> Thanks,
>>> Dscho
>> See also http://article.gmane.org/gmane.comp.emulators.qemu/24739.
>> EFI BIOS is affected by the same problem.
>>
> 
> With the difference that the patch proposed in this thread actually
> fixes the problem in case of the EFI BIOS.

[ Got it working, was to dumb to feed in the right file as bios... ]

Yeah, indeed, my patch cures the EFI issue. Interesting. But I still
don't understand what problem Windows has.

Jan

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