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Sun, 20 Oct 2024 01:29:58 +0000 (GMT) Received: from smtpav03.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A83B458054; Sun, 20 Oct 2024 01:29:57 +0000 (GMT) Received: from localhost.localdomain (unknown [9.61.54.50]) by smtpav03.wdc07v.mail.ibm.com (Postfix) with ESMTP; Sun, 20 Oct 2024 01:29:57 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=pp1; bh=TS38svw3GIfh/UCeQ Y7JIwa367Mp4DNIwZtu7DSWuAU=; b=CB9f10SEz8KNz0a527/Jsax8j169WqfkB N8Q7aE6oIhxKeZth8IrsxM/vT5IXFJvzbsEGNGB3T1R49/ZKuv2Po+CB9P2w8/w1 rb2e6ZepHid54Pp6UZfB+OihusovSeff5W1nhe4bDGlNiZKQ274CZd2cnTwij5bZ NTyYn1bkliEyfmJ5l01R1KDGGkyhrYylbSClUtwnvitQynTaTYNu19a4qlaTK8pz M0e/fTBfRbYHBl9L8DRR4dmsB8+cpIZB5KLKwBHEUOZRB4z5b8CwMqiO+yc+XqX6 SDJsXv9Rnc3c8AjJvlN8PeCQlohfwi6WPiY/MRyPgYACpbVq2YMSA== From: jrossi@linux.ibm.com To: qemu-devel@nongnu.org, qemu-s390x@nongnu.org, thuth@redhat.com Cc: frankja@linux.ibm.com, jrossi@linux.ibm.com Subject: [PATCH v5 01/19] hw/s390x/ipl: Provide more memory to the s390-ccw.img firmware Date: Sat, 19 Oct 2024 21:29:35 -0400 Message-ID: <20241020012953.1380075-2-jrossi@linux.ibm.com> X-Mailer: git-send-email 2.43.5 In-Reply-To: <20241020012953.1380075-1-jrossi@linux.ibm.com> References: <20241020012953.1380075-1-jrossi@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 4z37OupSRKol7IPbPFoftsh6X_FXKIHC X-Proofpoint-GUID: 4z37OupSRKol7IPbPFoftsh6X_FXKIHC X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-15_01,2024-10-11_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 bulkscore=0 mlxscore=0 clxscore=1015 mlxlogscore=584 phishscore=0 impostorscore=0 malwarescore=0 lowpriorityscore=0 adultscore=0 suspectscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2410200009 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=148.163.158.5; envelope-from=jrossi@linux.ibm.com; helo=mx0b-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1729387850274116600 Content-Type: text/plain; charset="utf-8" From: Jared Rossi We are going to link the SLOF libc into the s390-ccw.img, and this libc needs more memory for providing space for malloc() and friends. Thus bump the memory size that we reserve for the bios to 3 MiB instead of only 2 MiB. While we're at it, add a proper check that there is really enough memory assigned to the machine before blindly using it. Co-authored by: Thomas Huth Signed-off-by: Jared Rossi --- hw/s390x/ipl.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c index 5ab7433908..5f60977ceb 100644 --- a/hw/s390x/ipl.c +++ b/hw/s390x/ipl.c @@ -45,6 +45,7 @@ #define INITRD_PARM_START 0x010408UL #define PARMFILE_START 0x001000UL #define ZIPL_IMAGE_START 0x009000UL +#define BIOS_MAX_SIZE 0x300000UL #define IPL_PSW_MASK (PSW_MASK_32 | PSW_MASK_64) =20 static bool iplb_extended_needed(void *opaque) @@ -144,7 +145,14 @@ static void s390_ipl_realize(DeviceState *dev, Error *= *errp) * even if an external kernel has been defined. */ if (!ipl->kernel || ipl->enforce_bios) { - uint64_t fwbase =3D (MIN(ms->ram_size, 0x80000000U) - 0x200000) & = ~0xffffUL; + uint64_t fwbase; + + if (ms->ram_size < BIOS_MAX_SIZE) { + error_setg(errp, "not enough RAM to load the BIOS file"); + return; + } + + fwbase =3D (MIN(ms->ram_size, 0x80000000U) - BIOS_MAX_SIZE) & ~0xf= fffUL; =20 bios_filename =3D qemu_find_file(QEMU_FILE_TYPE_BIOS, ipl->firmwar= e); if (bios_filename =3D=3D NULL) { --=20 2.45.1