From patchwork Wed Dec 5 15:39:14 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janosch Frank X-Patchwork-Id: 10714455 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8E8501731 for ; Wed, 5 Dec 2018 15:41:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7EF052D64E for ; Wed, 5 Dec 2018 15:41:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7D3392D624; Wed, 5 Dec 2018 15:41:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EA61B2D651 for ; Wed, 5 Dec 2018 15:41:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728302AbeLEPlI (ORCPT ); Wed, 5 Dec 2018 10:41:08 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:45766 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728241AbeLEPk6 (ORCPT ); Wed, 5 Dec 2018 10:40:58 -0500 Received: from pps.filterd (m0098419.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id wB5FdBQB049739 for ; Wed, 5 Dec 2018 10:40:57 -0500 Received: from e06smtp07.uk.ibm.com (e06smtp07.uk.ibm.com [195.75.94.103]) by mx0b-001b2d01.pphosted.com with ESMTP id 2p6g73cys1-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 05 Dec 2018 10:40:56 -0500 Received: from localhost by e06smtp07.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 5 Dec 2018 15:40:51 -0000 Received: from b06wcsmtp001.portsmouth.uk.ibm.com (b06wcsmtp001.portsmouth.uk.ibm.com [9.149.105.160]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id wB5FeoT659244716 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 5 Dec 2018 15:40:50 GMT Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 773DEA405F; Wed, 5 Dec 2018 15:40:50 +0000 (GMT) Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 43FBAA405B; Wed, 5 Dec 2018 15:40:50 +0000 (GMT) Received: from s38lp20.lnxne.boe (unknown [9.152.224.44]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 5 Dec 2018 15:40:50 +0000 (GMT) From: Janosch Frank To: kvm@vger.kernel.org Cc: linux-s390@vger.kernel.org, david@redhat.com, thuth@redhat.com Subject: [kvm-unit-tests PATCH v2 2/6] s390x: Make tests bootable from disk Date: Wed, 5 Dec 2018 16:39:14 +0100 X-Mailer: git-send-email 2.14.3 In-Reply-To: <20181205153918.29480-1-frankja@linux.ibm.com> References: <20181205153918.29480-1-frankja@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18120515-0028-0000-0000-00000326771E X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18120515-0029-0000-0000-000023E284B4 Message-Id: <20181205153918.29480-3-frankja@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-12-05_06:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=877 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1812050139 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Currently tests are run with the --kernel option of Qemu, which will load the ELF file and jump to the start address. When booting from disk, we need to specify a start address. This is done by setting the initial short PSW at 0x0. Signed-off-by: Janosch Frank --- s390x/cstart64.S | 9 ++++++++- s390x/flat.lds | 8 +++++++- 2 files changed, 15 insertions(+), 2 deletions(-) diff --git a/s390x/cstart64.S b/s390x/cstart64.S index dc7ddd6..d382497 100644 --- a/s390x/cstart64.S +++ b/s390x/cstart64.S @@ -14,9 +14,16 @@ .section .init -/* entry point - for KVM + TCG we directly start in 64 bit mode */ +/* + * Short init between 0x10000 and 0x10480 and then jump to 0x11000. + * 0x10480 - 0x11000 are written to by bootloader. + * + * For KVM and TCG kernel boot we are in 64 bit z/Arch mode. + * When booting from disk the initial short psw is in 31 bit mode. + */ .globl start start: + sam64 # Set addressing mode to 64 bit /* setup stack */ larl %r15, stackptr /* setup initial PSW mask + control registers*/ diff --git a/s390x/flat.lds b/s390x/flat.lds index b6e2172..7cfd9f9 100644 --- a/s390x/flat.lds +++ b/s390x/flat.lds @@ -1,10 +1,16 @@ SECTIONS { + .lowcore : { + . = 0; + LONG(0x00080000) + LONG(0x80010000) + } + . = 0x10000; .text : { *(.init) . = 0x480; ipl_args = .; - . = 0x600; + . = 0x1000; *(.text) *(.text.*) }