From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42736) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Vqlub-00058g-Ov for qemu-devel@nongnu.org; Wed, 11 Dec 2013 10:41:27 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VqluV-0005GU-PS for qemu-devel@nongnu.org; Wed, 11 Dec 2013 10:41:21 -0500 Received: from mx1.redhat.com ([209.132.183.28]:15863) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VqluV-0005GB-Ge for qemu-devel@nongnu.org; Wed, 11 Dec 2013 10:41:15 -0500 Received: from int-mx02.intmail.prod.int.phx2.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id rBBFfDEp021571 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Wed, 11 Dec 2013 10:41:14 -0500 Message-ID: <52A88794.3030709@redhat.com> Date: Wed, 11 Dec 2013 16:41:08 +0100 From: Paolo Bonzini MIME-Version: 1.0 References: <1385401393-14291-1-git-send-email-pbonzini@redhat.com> <20131128102652.GA24261@redhat.com> <52A714AC.3050703@redhat.com> <20131210150542.GA27998@amt.cnet> <20131210172144.GA29151@amt.cnet> <20131210210241.GC8476@redhat.com> <20131211134118.GB14071@amt.cnet> <20131211142000.GA23355@redhat.com> <52A87A89.4000901@redhat.com> <20131211153936.GA25814@redhat.com> In-Reply-To: <20131211153936.GA25814@redhat.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH rebased for-1.8] i386: pc: align gpa<->hpa on 1GB boundary (v6) List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Michael S. Tsirkin" Cc: Marcelo Tosatti , qemu-devel@nongnu.org Il 11/12/2013 16:39, Michael S. Tsirkin ha scritto: > > 2GB low memory for q35 is a bit wasteful, > > but we have some time to fix that before release. > > How would you fix that? Just use 1GB, coupled with reducing the default MMCONFIG size to 128 buses. That's already ~40 PCIe devices if you count upstream/downstream ports in addition to the actual device, and you can also use PCIe-to-PCI bridges if you need more room. Paolo