From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list by lists.gnu.org with archive (Exim 4.71) id 1VYMNk-0002mA-29 for mharc-grub-devel@gnu.org; Mon, 21 Oct 2013 16:47:20 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58551) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VYFwd-0006uR-9P for grub-devel@gnu.org; Mon, 21 Oct 2013 09:55:01 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VYFwX-0002uF-2z for grub-devel@gnu.org; Mon, 21 Oct 2013 09:54:55 -0400 Received: from mx1.redhat.com ([209.132.183.28]:6727) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VYFwW-0002u7-Rx for grub-devel@gnu.org; Mon, 21 Oct 2013 09:54:49 -0400 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id r9LDsg5C020225 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Mon, 21 Oct 2013 09:54:43 -0400 Received: from fenchurch.internal.datastacks.com (ovpn-113-124.phx2.redhat.com [10.3.113.124]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id r9LDscBe026659 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NO); Mon, 21 Oct 2013 09:54:40 -0400 Date: Mon, 21 Oct 2013 09:54:38 -0400 From: Peter Jones To: Daniel Kiper Subject: Re: EFI and multiboot2 devlopment work for Xen Message-ID: <20131021135437.GD1283@fenchurch.internal.datastacks.com> References: <20131021125756.GA3626@debian70-amd64.local.net-space.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20131021125756.GA3626@debian70-amd64.local.net-space.pl> User-Agent: Mutt/1.5.21 (2010-09-15) X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 209.132.183.28 X-Mailman-Approved-At: Mon, 21 Oct 2013 16:47:18 -0400 Cc: grub-devel@gnu.org, keir@xen.org, david.woodhouse@intel.com, stefano.stabellini@eu.citrix.com, linux-kernel@vger.kernel.org, ross.philipson@citrix.com, jbeulich@suse.com, boris.ostrovsky@oracle.com, xen-devel@lists.xen.org, richard.l.maliszewski@intel.com, ian.campbell@citrix.com X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: The development of GNU GRUB List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Oct 2013 13:55:01 -0000 On Mon, Oct 21, 2013 at 02:57:56PM +0200, Daniel Kiper wrote: > Hi, > > During work on multiboot2 protocol support for Xen it was discovered > that memory map passed via relevant tag could not represent wide range > of memory types available on EFI platforms. Additionally, GRUB2 > implementation calls ExitBootServices() on them just before jumping > into loaded image. In this situation loaded system could not clearly > identify reserved memory regions, EFI runtime services regions and others. I think you'll find that many distros are shipping patches to grub2 to add a "linuxefi" command that starts the kernel through its EFISTUB code. You may want to look in to that. -- Peter