From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1MwDnA-0002gC-NM for qemu-devel@nongnu.org; Fri, 09 Oct 2009 07:37:48 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1MwDn5-0002YD-9a for qemu-devel@nongnu.org; Fri, 09 Oct 2009 07:37:47 -0400 Received: from [199.232.76.173] (port=35212 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1MwDn5-0002Xv-4P for qemu-devel@nongnu.org; Fri, 09 Oct 2009 07:37:43 -0400 Received: from mx1.redhat.com ([209.132.183.28]:16152) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1MwDn4-000503-MU for qemu-devel@nongnu.org; Fri, 09 Oct 2009 07:37:42 -0400 Date: Fri, 9 Oct 2009 13:37:39 +0200 From: Gleb Natapov Subject: Re: [Qemu-devel] [PATCH 10/21] Advertise pci irqs as active high in DSDT Message-ID: <20091009113739.GH19692@redhat.com> References: <1255017566-26220-1-git-send-email-gleb@redhat.com> <1255017566-26220-11-git-send-email-gleb@redhat.com> <20091009105614.GD6576@shareable.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20091009105614.GD6576@shareable.org> List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Jamie Lokier Cc: kevin@koconnor.net, qemu-devel@nongnu.org On Fri, Oct 09, 2009 at 11:56:14AM +0100, Jamie Lokier wrote: > Gleb Natapov wrote: > > Now that kvm emulates the ioapic polarity correctly, we must describe > > the polarity correctly in the acpi tables. Otherwise pci interrupts won't > > be delivered correctly. > > In another thread recently, wasn't it mentioned that the in-kernel > ioapic handles polarity correctly but the out-of-kernel ioapic does > not yet? > Correct and that is why out-of-kernel doesn't care about polarity. It just ignores the bit. So for in-kernel ioapic to work you need this change and it is nop for out-of-kernel one -- Gleb.