From owner-freebsd-hackers@FreeBSD.ORG Sat Apr 12 04:14:07 2008 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8E9F61065673 for ; Sat, 12 Apr 2008 04:14:07 +0000 (UTC) (envelope-from shase@andrew.cmu.edu) Received: from smtp.andrew.cmu.edu (SMTP.andrew.cmu.edu [128.2.10.212]) by mx1.freebsd.org (Postfix) with ESMTP id 53DCB8FC1D for ; Sat, 12 Apr 2008 04:14:07 +0000 (UTC) (envelope-from shase@andrew.cmu.edu) Received: from [128.237.229.163] (CMU-201361.WV.CC.CMU.EDU [128.237.229.163]) (user=shase mech=PLAIN (0 bits)) by smtp.andrew.cmu.edu (8.13.8/8.13.8) with ESMTP id m3C4E6Jx023631 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT) for ; Sat, 12 Apr 2008 00:14:06 -0400 Message-ID: <48003712.9020507@andrew.cmu.edu> Date: Sat, 12 Apr 2008 00:14:10 -0400 From: sanket hase User-Agent: Thunderbird 2.0.0.6 (X11/20070801) MIME-Version: 1.0 To: freebsd-hackers@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.60 on 128.2.10.212 Subject: freebsd/xen: pcifront: bypass irq routing on guest X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 Apr 2008 04:14:07 -0000 Hi, I want to disable irq routing table on guest-OS ( freebsd domU )so that it can contact host OS to get interrupts. Can anyone tell me , how irq routing on x86 is done in freebsd. I want to "bypass/disable" that function or rather replace it with some of my routine which makes guest os conatct host os (dom0 ) Can you please tell me where exactly this code/interface resides? Thanks, Sanket