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[Qemu-devel] Re: Breakage with local APIC routing
From: |
Jan Kiszka |
Subject: |
[Qemu-devel] Re: Breakage with local APIC routing |
Date: |
Sun, 17 Aug 2008 20:58:34 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
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.
>
Can you describe a valid test case? I quickly tried
http://bellard.org/qemu/efi-bios.tar.bz2 with qemu revision #3370, but I
only get "Trying to execute code outside RAM or ROM at 0x000a0000".
Jan
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