From patchwork Fri Apr 13 22:08:06 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Collin Walling X-Patchwork-Id: 10340833 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 3A3B9600D0 for ; Fri, 13 Apr 2018 22:09:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3DD9B28A0B for ; Fri, 13 Apr 2018 22:09:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 32C8F28A0E; Fri, 13 Apr 2018 22:09:54 +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 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 CC67328A0B for ; Fri, 13 Apr 2018 22:09:53 +0000 (UTC) Received: from localhost ([::1]:58632 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f76tE-0006oq-TO for patchwork-qemu-devel@patchwork.kernel.org; Fri, 13 Apr 2018 18:09:52 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37741) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f76rj-0005Fc-EP for qemu-devel@nongnu.org; Fri, 13 Apr 2018 18:08:20 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1f76re-000897-TG for qemu-devel@nongnu.org; Fri, 13 Apr 2018 18:08:19 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:60728 helo=mx0a-001b2d01.pphosted.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1f76re-00088Z-N1 for qemu-devel@nongnu.org; Fri, 13 Apr 2018 18:08:14 -0400 Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w3DM05FM127631 for ; Fri, 13 Apr 2018 18:08:14 -0400 Received: from e13.ny.us.ibm.com (e13.ny.us.ibm.com [129.33.205.203]) by mx0a-001b2d01.pphosted.com with ESMTP id 2hb1mjg4wm-1 (version=TLSv1.2 cipher=AES256-SHA256 bits=256 verify=NOT) for ; Fri, 13 Apr 2018 18:08:13 -0400 Received: from localhost by e13.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Fri, 13 Apr 2018 18:08:10 -0400 Received: from b01ledav001.gho.pok.ibm.com (b01ledav001.gho.pok.ibm.com [9.57.199.106]) by b01cxnp22033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w3DM88a648037964; Fri, 13 Apr 2018 22:08:08 GMT Received: from b01ledav001.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 516CF2804C; Fri, 13 Apr 2018 18:07:32 -0400 (EDT) Received: from collin-ThinkPad-W541.pok.ibm.com (unknown [9.56.58.19]) by b01ledav001.gho.pok.ibm.com (Postfix) with ESMTP id 40D502803F; Fri, 13 Apr 2018 18:07:32 -0400 (EDT) From: Collin Walling To: qemu-devel@nongnu.org, qemu-s390x@nongnu.org, cohuck@redhat.com, thuth@redhat.com, borntraeger@de.ibm.com Date: Fri, 13 Apr 2018 18:08:06 -0400 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1523657288-6587-1-git-send-email-walling@linux.ibm.com> References: <1523657288-6587-1-git-send-email-walling@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18041322-0008-0000-0000-000002F6B5F4 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00008852; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000257; SDB=6.01017484; UDB=6.00518936; IPR=6.00796721; MB=3.00020565; MTD=3.00000008; XFM=3.00000015; UTC=2018-04-13 22:08:12 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18041322-0009-0000-0000-000038E46526 Message-Id: <1523657288-6587-3-git-send-email-walling@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2018-04-13_12:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=2 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1804130203 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.158.5 Subject: [Qemu-devel] [PATCH 2/4] pc-bios/s390-ccw: fix loadparm initialization and int conversion 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: frankja@linux.ibm.com, gor@linux.ibm.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Rename the loadparm char array in main.c to loadparm_str and increased the size by one byte to account for a null termination when converting the loadparm string to an int via atoui. We also allow the boot menu to be enabled when loadparm is set to an empty string or a series of spaces. Signed-off-by: Collin Walling Reported-by: Vasily Gorbik Reviewed-by: Thomas Huth --- hw/s390x/ipl.c | 2 ++ pc-bios/s390-ccw/main.c | 14 +++++++------- 2 files changed, 9 insertions(+), 7 deletions(-) diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c index fdeaec3..23b5b54 100644 --- a/hw/s390x/ipl.c +++ b/hw/s390x/ipl.c @@ -352,6 +352,8 @@ int s390_ipl_set_loadparm(uint8_t *loadparm) loadparm[i] = ascii2ebcdic[(uint8_t) lp[i]]; } + memset(loadparm + i, 0x40, 8 - i); /* fill with EBCDIC spaces */ + g_free(lp); return 0; } diff --git a/pc-bios/s390-ccw/main.c b/pc-bios/s390-ccw/main.c index 9d9f8cf..26f9adf 100644 --- a/pc-bios/s390-ccw/main.c +++ b/pc-bios/s390-ccw/main.c @@ -15,11 +15,11 @@ 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 }; +static char loadparm_str[9] = { 0, 0, 0, 0, 0, 0, 0, 0, 0 }; QemuIplParameters qipl; #define LOADPARM_PROMPT "PROMPT " -#define LOADPARM_EMPTY "........" +#define LOADPARM_EMPTY " " #define BOOT_MENU_FLAG_MASK (QIPL_FLAG_BM_OPTS_CMD | QIPL_FLAG_BM_OPTS_ZIPL) /* @@ -45,7 +45,7 @@ void panic(const char *string) unsigned int get_loadparm_index(void) { - return atoui(loadparm); + return atoui(loadparm_str); } static bool find_dev(Schib *schib, int dev_no) @@ -80,13 +80,13 @@ static bool find_dev(Schib *schib, int dev_no) static void menu_setup(void) { - if (memcmp(loadparm, LOADPARM_PROMPT, 8) == 0) { + if (memcmp(loadparm_str, LOADPARM_PROMPT, 8) == 0) { menu_set_parms(QIPL_FLAG_BM_OPTS_CMD, 0); return; } /* If loadparm was set to any other value, then do not enable menu */ - if (memcmp(loadparm, LOADPARM_EMPTY, 8) != 0) { + if (memcmp(loadparm_str, LOADPARM_EMPTY, 8) != 0) { return; } @@ -116,8 +116,8 @@ static void virtio_setup(void) */ enable_mss_facility(); - sclp_get_loadparm_ascii(loadparm); - memcpy(ldp + 10, loadparm, 8); + sclp_get_loadparm_ascii(loadparm_str); + memcpy(ldp + 10, loadparm_str, 8); sclp_print(ldp); memcpy(&qipl, early_qipl, sizeof(QemuIplParameters));