From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LtlLk-000205-0K for qemu-devel@nongnu.org; Tue, 14 Apr 2009 12:19:04 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LtlLe-0001xE-AN for qemu-devel@nongnu.org; Tue, 14 Apr 2009 12:19:02 -0400 Received: from [199.232.76.173] (port=33180 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LtlLe-0001x8-3l for qemu-devel@nongnu.org; Tue, 14 Apr 2009 12:18:58 -0400 Received: from e2.ny.us.ibm.com ([32.97.182.142]:57230) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1LtlLd-0004hm-Eo for qemu-devel@nongnu.org; Tue, 14 Apr 2009 12:18:57 -0400 Received: from d01relay04.pok.ibm.com (d01relay04.pok.ibm.com [9.56.227.236]) by e2.ny.us.ibm.com (8.13.1/8.13.1) with ESMTP id n3EGFRaa026031 for ; Tue, 14 Apr 2009 12:15:27 -0400 Received: from d01av04.pok.ibm.com (d01av04.pok.ibm.com [9.56.224.64]) by d01relay04.pok.ibm.com (8.13.8/8.13.8/NCO v9.2) with ESMTP id n3EGIllF198500 for ; Tue, 14 Apr 2009 12:18:47 -0400 Received: from d01av04.pok.ibm.com (loopback [127.0.0.1]) by d01av04.pok.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id n3EGIlBs031791 for ; Tue, 14 Apr 2009 12:18:47 -0400 Message-ID: <49E4B77E.8000601@us.ibm.com> Date: Tue, 14 Apr 2009 12:19:10 -0400 From: Beth Kon MIME-Version: 1.0 Subject: Re: [Qemu-devel] [PATCH] Fix non-ACPI Timer Interrupt Routing References: <49E3D91E.40208@us.ibm.com> <01bd01c9bcd3$3aaedef0$b00c9cd0$@com> <49E49BAD.70309@us.ibm.com> <01c201c9bd11$2a48d640$7eda82c0$@com> In-Reply-To: <01c201c9bd11$2a48d640$7eda82c0$@com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: bochs-developers@lists.sourceforge.net, eswierk@aristanetworks.com, herbszt@gmx.de Stanislav wrote: >> The irq0->inti2 override is not absolutely required. Running Windows >> 2008 in QEMU with the emulated HPET does require it, so this is a >> QEMU-only change. >> > > Non-absolutely required is not good answer :) > Is anything will be broken if the change is merged for Bochs as well ? > I think it will not. > And as bonus, Windows 7 32-bit is not booting under Bochs without this > change. > > This is part of a bigger change for QEMU, incorporating irq0->inti2 override for ACPI, and non-ACPI, driven by addition of the HPET. It required BIOS changes as well as QEMU changes to route irq0 to inti2 of the IOAPIC. This patch alone is not complete. I have tested the complete solution in QEMU, thus the guards. The complete solution would require the madt_int_override portions of this patch: http://lists.gnu.org/archive/html/qemu-devel/2008-11/txtSbJwxwQwiT.txt and the Bochs equivalent of the QEMU irq0->inti2 routing (see changes to ioapic_set_irq) in this patch: http://lists.gnu.org/archive/html/qemu-devel/2008-11/txtswJIdPnCbr.txt > Stanislav > > -----Original Message----- > From: qemu-devel-bounces+stlintel=gmail.com@nongnu.org > [mailto:qemu-devel-bounces+stlintel=gmail.com@nongnu.org] On Behalf Of Beth > Kon > Sent: Tuesday, April 14, 2009 5:20 PM > To: qemu-devel@nongnu.org > Cc: bochs-developers@lists.sourceforge.net; eswierk@aristanetworks.com; > herbszt@gmx.de > Subject: Re: [Qemu-devel] [PATCH] Fix non-ACPI Timer Interrupt Routing > > Stanislav wrote: > >> Hi, >> >> Could you explain why you doing these changes for QEMU only (with ifdef >> QEMU) ? >> >> >> > > > The irq0->inti2 override is not absolutely required. Running Windows > 2008 in QEMU with the emulated HPET does require it, so this is a > QEMU-only change. > > > > > >