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Fri, 3 Jul 2026 12:18:14 GMT Received: from smtprelay07.wdc07v.mail.ibm.com ([172.16.1.74]) by ppma21.wdc07v.mail.ibm.com (PPS) with ESMTPS id 4f2sukgrw5-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 03 Jul 2026 12:18:14 +0000 (GMT) Received: from smtpav01.wdc07v.mail.ibm.com (smtpav01.wdc07v.mail.ibm.com [10.39.53.228]) by smtprelay07.wdc07v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 663CIDpd19923572 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 3 Jul 2026 12:18:13 GMT Received: from smtpav01.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1ACB558065; Fri, 3 Jul 2026 12:18:13 +0000 (GMT) Received: from smtpav01.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 00F8558059; Fri, 3 Jul 2026 12:18:11 +0000 (GMT) Received: from li-479af74c-31f9-11b2-a85c-e4ddee11713b.ibm.com (unknown [9.61.9.239]) by smtpav01.wdc07v.mail.ibm.com (Postfix) with ESMTP; Fri, 3 Jul 2026 12:18:10 +0000 (GMT) Message-ID: <05e7789035f36a99cb01091993fb98b96d723d58.camel@linux.ibm.com> Subject: Re: [PATCH v13 26/33] pc-bios/s390-ccw: Add additional security checks for secure boot From: Eric Farman To: Zhuoying Cai , qemu-s390x@nongnu.org, qemu-devel@nongnu.org Cc: jrossi@linux.ibm.com, cohuck@redhat.com, berrange@redhat.com, richard.henderson@linaro.org, david@kernel.org, walling@linux.ibm.com, jjherne@linux.ibm.com, pasic@linux.ibm.com, borntraeger@linux.ibm.com, mjrosato@linux.ibm.com, iii@linux.ibm.com, eblake@redhat.com, armbru@redhat.com, alifm@linux.ibm.com, brueckner@linux.ibm.com, pierrick.bouvier@oss.qualcomm.com, jdaley@linux.ibm.com In-Reply-To: <20260703022933.1805010-27-zycai@linux.ibm.com> References: <20260703022933.1805010-1-zycai@linux.ibm.com> <20260703022933.1805010-27-zycai@linux.ibm.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Date: Fri, 03 Jul 2026 08:17:23 -0400 User-Agent: Evolution 3.58.3 (3.58.3-1.fc43) X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzAzMDEyMCBTYWx0ZWRfX54q1vILnKETV igVw0eE2mjSUqqjpZOgDGMyXlawK3MIPkDgotZQ4xTp6VWAHE1U9W2B4JJF1yWViql/t5GPjFW7 F3JvV/Tmo3WeZqp8EL0VYTnP5yRGlMPukCH/jNeKnSD6qela9td9DmCnGQhOjoya9V9fiY73azz nIpF9Rdh7MOigo5iEhGM4kqiP0ZfXVth16zCXur5QetEMVgXy0iFrN/zcPz1kOMYHc8wJ4o3d6j ru2/aMO/Y//O2OB+vR3tTot3e7P0uE7h8zFXFbcLCKactJMAaxa7Fqu1BZ8fy0hAH58wQ33Yoqq OpAsqtCiPTVrqsyT6zxcZFD+kY0hdhie+Xk+GPMkskKmltn6XSXJNPhR1Tg6FMq6gL9xV+EPRbD 4LWo9VChj2hZ4Nbsl+sl1YV4tU/n3USmJX4+mIks5H5XMyIkUfuHyNE+T21vcNGynA2O/u5+A88 PFnYOvY4o4xIA8rzCCA== X-Proofpoint-GUID: MVhbZloDOwVmKGd1WRJzSBrjnfoe7hXi X-Authority-Analysis: v=2.4 cv=Z8bc2nRA c=1 sm=1 tr=0 ts=6a47a886 cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=RzCfie-kr_QcCd8fBx8p:22 a=VnNF1IyMAAAA:8 a=XMBjRswBOKp5J3ctqEMA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzAzMDEyMCBTYWx0ZWRfX4naXse1tpehD yupRZi4mVxQyILRII+HUngiqEVwMwG010E7RCvO5gZ4T0ZlrXDFxK06qcxwKXWDX/GAXG7fikpv 1S7vW73Jl60MVZdYSI2RCMp8lKm5+DY= X-Proofpoint-ORIG-GUID: MVhbZloDOwVmKGd1WRJzSBrjnfoe7hXi X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-07-03_02,2026-06-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 adultscore=0 spamscore=0 priorityscore=1501 impostorscore=0 malwarescore=0 phishscore=0 bulkscore=0 lowpriorityscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607030120 Received-SPF: pass client-ip=148.163.158.5; envelope-from=farman@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, 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: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Thu, 2026-07-02 at 22:29 -0400, Zhuoying Cai wrote: > Add additional checks to ensure that components do not overlap with > signed components when loaded into memory. >=20 > Add additional checks to ensure the load addresses of unsigned components > are greater than or equal to 0x2000. >=20 > When the secure IPL code loading attributes facility (SCLAF) is installed= , > all signed components must contain a secure code loading attributes block > (SCLAB). >=20 > The SCLAB provides further validation of information on where to load the > signed binary code from the load device, and where to start the execution > of the loaded OS code. >=20 > When SCLAF is installed, its content must be evaluated during secure IPL. >=20 > Add IPL Information Error Indicators (IIEI) and Component Error > Indicators (CEI) for IPL Information Report Block (IIRB). >=20 > When SCLAF is installed, additional secure boot checks are performed > during zipl and store results of verification into IIRB. >=20 > Signed-off-by: Zhuoying Cai > --- > include/hw/s390x/ipl/qipl.h | 29 +++++- > pc-bios/s390-ccw/sclp.h | 1 + > pc-bios/s390-ccw/secure-ipl.c | 179 +++++++++++++++++++++++++++++++++- > pc-bios/s390-ccw/secure-ipl.h | 51 ++++++++++ > 4 files changed, 255 insertions(+), 5 deletions(-) Reviewed-by: Eric Farman