From patchwork Mon Apr 22 19:18:10 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Graf X-Patchwork-Id: 238644 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 034902C014A for ; Tue, 23 Apr 2013 05:19:53 +1000 (EST) Received: from localhost ([::1]:51616 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UUMHH-0003V0-45 for incoming@patchwork.ozlabs.org; Mon, 22 Apr 2013 15:19:51 -0400 Received: from eggs.gnu.org ([208.118.235.92]:52707) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UUMGY-0003HG-IV for qemu-devel@nongnu.org; Mon, 22 Apr 2013 15:19:12 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UUMGX-0001Jr-9u for qemu-devel@nongnu.org; Mon, 22 Apr 2013 15:19:06 -0400 Received: from cantor2.suse.de ([195.135.220.15]:44144 helo=mx2.suse.de) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UUMGX-0001Ag-45 for qemu-devel@nongnu.org; Mon, 22 Apr 2013 15:19:05 -0400 Received: from relay1.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 2ECAFA5358; Mon, 22 Apr 2013 21:18:19 +0200 (CEST) From: Alexander Graf To: qemu-devel@nongnu.org Date: Mon, 22 Apr 2013 21:18:10 +0200 Message-Id: <1366658298-9275-5-git-send-email-agraf@suse.de> X-Mailer: git-send-email 1.6.0.2 In-Reply-To: <1366658298-9275-1-git-send-email-agraf@suse.de> References: <1366658298-9275-1-git-send-email-agraf@suse.de> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x X-Received-From: 195.135.220.15 Cc: Christian Borntraeger , Dominik Dingel Subject: [Qemu-devel] [PATCH 04/12] S390: ccw firmware: Add start assembly X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org We want to write most of our code in C, so add a small assembly stub that jumps straight into C code for us to continue booting. Signed-off-by: Alexander Graf --- pc-bios/s390-ccw/start.S | 16 ++++++++++++++++ 1 files changed, 16 insertions(+), 0 deletions(-) create mode 100644 pc-bios/s390-ccw/start.S diff --git a/pc-bios/s390-ccw/start.S b/pc-bios/s390-ccw/start.S new file mode 100644 index 0000000..c2b9a19 --- /dev/null +++ b/pc-bios/s390-ccw/start.S @@ -0,0 +1,16 @@ +/* + * First stage boot loader for virtio devices. The compiled output goes + * into the pc-bios directory of qemu. + * + * Copyright (c) 2013 Alexander Graf + * + * This work is licensed under the terms of the GNU GPL, version 2 or (at + * your option) any later version. See the COPYING file in the top-level + * directory. + */ + + .globl _start +_start: + +larl %r15, stack + 0x8000 /* Set up stack */ +j main /* And call C */