From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40802) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xb8lc-0002nL-Or for qemu-devel@nongnu.org; Mon, 06 Oct 2014 09:56:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Xb8lW-00042q-LY for qemu-devel@nongnu.org; Mon, 06 Oct 2014 09:56:00 -0400 Received: from mx1.redhat.com ([209.132.183.28]:31595) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xb8lW-00042i-Di for qemu-devel@nongnu.org; Mon, 06 Oct 2014 09:55:54 -0400 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s96Dtq9I028054 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Mon, 6 Oct 2014 09:55:52 -0400 Message-ID: <54329F65.90101@redhat.com> Date: Mon, 06 Oct 2014 15:55:49 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <1411057074-11157-1-git-send-email-pbonzini@redhat.com> <20141002121140.GA25373@redhat.com> <542D5391.8080007@redhat.com> <20141002134137.GA26273@redhat.com> <542D5687.3050604@redhat.com> <20141002134905.GC26273@redhat.com> <54329C29.9070508@redhat.com> <20141006135253.GA29563@redhat.com> In-Reply-To: <20141006135253.GA29563@redhat.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 0/6] pc: bring ACPI table size below to 2.0 levels, try fixing -initrd for good List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Michael S. Tsirkin" Cc: jsnow@redhat.com, qemu-devel@nongnu.org Il 06/10/2014 15:52, Michael S. Tsirkin ha scritto: > Maybe we should just modify ACPI and rom files in general to use > something else, not RAM? > It looked like a good fit initially so we went ahead with it, > but these things are fairly small, so it's not a problem to > migrate them as part of the device state. Yes, that would have been a good design too, but I'm not sure it's worth changing it now. So far, it has certainly helped us; it both revealed bugs (though a bit too late) and kept us honest. These patches would be easy to revert from now till 2.2 release, they're just an incremental improvement on top of 2.1.2. I'll post a v2 that includes the linuxboot changes to look at the memory map, and keep the 160k padding for the sake of old linuxboot option ROMs being migrated to 2.2. Paolo