From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1MGhfg-0002ri-Ty for qemu-devel@nongnu.org; Tue, 16 Jun 2009 19:02:28 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1MGhfa-0002ol-8K for qemu-devel@nongnu.org; Tue, 16 Jun 2009 19:02:28 -0400 Received: from [199.232.76.173] (port=38337 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MGhfa-0002oe-1m for qemu-devel@nongnu.org; Tue, 16 Jun 2009 19:02:22 -0400 Received: from mx2.redhat.com ([66.187.237.31]:49532) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1MGhfZ-0000oC-DY for qemu-devel@nongnu.org; Tue, 16 Jun 2009 19:02:21 -0400 Message-ID: <4A38236F.2010704@redhat.com> Date: Tue, 16 Jun 2009 12:57:51 -1000 From: Zachary Amsden MIME-Version: 1.0 Subject: Re: [Qemu-devel] [PATCH] Register usb-uhci reset function. References: <20090616124702.GS19508@redhat.com> <200906161941.06191.paul@codesourcery.com> <20090616191148.GI782@redhat.com> <200906162038.25324.paul@codesourcery.com> In-Reply-To: <200906162038.25324.paul@codesourcery.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paul Brook Cc: qemu-devel@nongnu.org, Gleb Natapov Paul Brook wrote: >>> However having the device explicit set its IRQ line during a full system >>> reset is a different matter. This is probably harmless most of the time, >>> and may paper over other bugs (e.g. the PCI bus not being reset >>> properly). However I do not believe it is the correct justification for >>> these changes. >> The IRQ state inside piix3 code is QEMU implementation detail. There is >> now such thing on real HW. > > Yes there is. It's a long strip of copper wire with a pullup resistor on the > end. This is all nice, but what are we going to do about fixing the bug? Zach