From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1MaQQw-0002xb-12 for qemu-devel@nongnu.org; Mon, 10 Aug 2009 04:40:46 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1MaQQq-0002vz-Uh for qemu-devel@nongnu.org; Mon, 10 Aug 2009 04:40:45 -0400 Received: from [199.232.76.173] (port=45683 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MaQQq-0002vu-Oj for qemu-devel@nongnu.org; Mon, 10 Aug 2009 04:40:40 -0400 Received: from mx2.redhat.com ([66.187.237.31]:45060) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1MaQQp-0003yW-V5 for qemu-devel@nongnu.org; Mon, 10 Aug 2009 04:40:40 -0400 Message-ID: <4A7FDE6F.7040602@redhat.com> Date: Mon, 10 Aug 2009 11:46:39 +0300 From: Avi Kivity MIME-Version: 1.0 Subject: Re: [Qemu-devel] [PATCH 1/2] Route PC irqs to ISA bus instead of i8259 directly References: <1249836296-13288-1-git-send-email-avi@redhat.com> <1249836296-13288-2-git-send-email-avi@redhat.com> <4A7FDB8B.3000504@redhat.com> In-Reply-To: <4A7FDB8B.3000504@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Gerd Hoffmann Cc: qemu-devel@nongnu.org On 08/10/2009 11:34 AM, Gerd Hoffmann wrote: > On 08/09/09 18:44, Avi Kivity wrote: >> A PC has its motherboard IRQ lines connected to both the PIC and IOAPIC. >> Currently, qemu routes IRQs to the PIC which then calls the IOAPIC, an >> incestuous arrangement. In order to clean this up, create a new ISA IRQ >> abstraction, and have devices raise ISA IRQs (which in turn raise the >> i8259 >> IRQs as usual). > > There are isa-bus qdev patches in anthonys patch queue. I think it > makes sense to do this cleanup on top of the isa-bus patches. Maybe > it makes sense to integrate it more, i.e. have the irqs as element in > IsaBus ... > One thing at a time. -- error compiling committee.c: too many arguments to function