From patchwork Tue May 2 13:35:59 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cornelia Huck X-Patchwork-Id: 9708097 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 8944A6021C for ; Tue, 2 May 2017 13:40:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7B3342843B for ; Tue, 2 May 2017 13:40:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 700AC2845D; Tue, 2 May 2017 13:40:06 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 141932843B for ; Tue, 2 May 2017 13:40:06 +0000 (UTC) Received: from localhost ([::1]:58909 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d5Y29-0003a4-9x for patchwork-qemu-devel@patchwork.kernel.org; Tue, 02 May 2017 09:40:05 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58907) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d5Xyb-0001Kq-6U for qemu-devel@nongnu.org; Tue, 02 May 2017 09:36:26 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d5XyY-0001pK-3Z for qemu-devel@nongnu.org; Tue, 02 May 2017 09:36:25 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:36577) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1d5XyX-0001oz-Qi for qemu-devel@nongnu.org; Tue, 02 May 2017 09:36:22 -0400 Received: from pps.filterd (m0098404.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id v42DYIuK076920 for ; Tue, 2 May 2017 09:36:20 -0400 Received: from e06smtp11.uk.ibm.com (e06smtp11.uk.ibm.com [195.75.94.107]) by mx0a-001b2d01.pphosted.com with ESMTP id 2a68vwtmgw-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Tue, 02 May 2017 09:36:20 -0400 Received: from localhost by e06smtp11.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Tue, 2 May 2017 14:36:15 +0100 Received: from d06av23.portsmouth.uk.ibm.com (d06av23.portsmouth.uk.ibm.com [9.149.105.59]) by b06cxnps4076.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v42DaFJU37027944; Tue, 2 May 2017 13:36:15 GMT Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2A602A406B; Tue, 2 May 2017 14:35:02 +0100 (BST) Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EF665A4069; Tue, 2 May 2017 14:35:01 +0100 (BST) Received: from gondolin.boeblingen.de.ibm.com (unknown [9.152.224.119]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTPS; Tue, 2 May 2017 14:35:01 +0100 (BST) From: Cornelia Huck To: peter.maydell@linaro.org Date: Tue, 2 May 2017 15:35:59 +0200 X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170502133604.17735-1-cornelia.huck@de.ibm.com> References: <20170502133604.17735-1-cornelia.huck@de.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 17050213-0040-0000-0000-0000039B01D5 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17050213-0041-0000-0000-00001FF1B946 Message-Id: <20170502133604.17735-8-cornelia.huck@de.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-05-02_09:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1703280000 definitions=main-1705020077 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PULL 07/12] pc-bios/s390-ccw: provide a function to interpret LOADPARM value X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Farhan Ali , agraf@suse.de, qemu-devel@nongnu.org, borntraeger@de.ibm.com, Cornelia Huck , Eugene Dvurechenski Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Farhan Ali The LOADPARM value is fetched from SCP Read Info, but it's applied only at the phase of bootmap interpretation. So let's read the LOARPARM value and store it. Also provide a parsing function to detect numbers in the LOADPARM which can be used during bootmap interpretation. Remove a stray whitespace. Initial patch from Eugene (jno) Dvurechenski. Signed-off-by: Eugene (jno) Dvurechenski Signed-off-by: Farhan Ali Signed-off-by: Cornelia Huck --- pc-bios/s390-ccw/main.c | 27 ++++++++++++++++++++++++++- pc-bios/s390-ccw/s390-ccw.h | 1 + 2 files changed, 27 insertions(+), 1 deletion(-) diff --git a/pc-bios/s390-ccw/main.c b/pc-bios/s390-ccw/main.c index 393d732353..1cacc1b46f 100644 --- a/pc-bios/s390-ccw/main.c +++ b/pc-bios/s390-ccw/main.c @@ -14,6 +14,7 @@ char stack[PAGE_SIZE * 8] __attribute__((__aligned__(PAGE_SIZE))); static SubChannelId blk_schid = { .one = 1 }; IplParameterBlock iplb __attribute__((__aligned__(PAGE_SIZE))); +static char loadparm[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; const unsigned char ebc2asc[256] = /* 0123456789abcdef0123456789abcdef */ @@ -40,7 +41,6 @@ void write_subsystem_identification(void) *zeroes = 0; } - void panic(const char *string) { sclp_print(string); @@ -48,6 +48,26 @@ void panic(const char *string) while (1) { } } +unsigned int get_loadparm_index(void) +{ + const char *lp = loadparm; + int i; + unsigned int idx = 0; + + for (i = 0; i < 8; i++) { + char c = lp[i]; + + if (c < '0' || c > '9') { + break; + } + + idx *= 10; + idx += c - '0'; + } + + return idx; +} + static bool find_dev(Schib *schib, int dev_no) { int i, r; @@ -84,6 +104,7 @@ static void virtio_setup(void) int ssid; bool found = false; uint16_t dev_no; + char ldp[] = "LOADPARM=[________]\n"; VDev *vdev = virtio_get_device(); /* @@ -93,6 +114,10 @@ static void virtio_setup(void) */ enable_mss_facility(); + sclp_get_loadparm_ascii(loadparm); + memcpy(ldp + 10, loadparm, 8); + sclp_print(ldp); + if (store_iplb(&iplb)) { switch (iplb.pbt) { case S390_IPL_TYPE_CCW: diff --git a/pc-bios/s390-ccw/s390-ccw.h b/pc-bios/s390-ccw/s390-ccw.h index 903d2ce816..07d8cbcb20 100644 --- a/pc-bios/s390-ccw/s390-ccw.h +++ b/pc-bios/s390-ccw/s390-ccw.h @@ -62,6 +62,7 @@ void consume_sclp_int(void); void panic(const char *string); void write_subsystem_identification(void); extern char stack[PAGE_SIZE * 8] __attribute__((__aligned__(PAGE_SIZE))); +unsigned int get_loadparm_index(void); /* sclp.c */ void sclp_print(const char *string);