From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6A8C9C43458 for ; Fri, 3 Jul 2026 02:31:29 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists1p.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1wfTff-0000Ff-Us; Thu, 02 Jul 2026 22:30:27 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wfTfc-0000Dm-U0; Thu, 02 Jul 2026 22:30:24 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1wfTfa-0003Wo-Py; Thu, 02 Jul 2026 22:30:24 -0400 Received: from pps.filterd (m0360083.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 6631IF6B1317499; Fri, 3 Jul 2026 02:30:17 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=bfOshnfnLjcMxaDNV afW2X6etk7uW6LTS1pBWI+FBc0=; b=X/W+qhMr+iKCZXliV62Q16SM2cUagx+Em /oRkQwSoOTcCHuaCKUkyGMq0iWNer02gD16nVCFiWGPrcj0rU27dxWGhXAyWBfEH abq/3aCE7jM3j5nCPYiE+6PznjdjUu8TlvQ/qMFGjz5HuAATpRck5jf90NHH3Be5 GWKqiP7gpaY3VFzB9hYRQfHOiWVQ80fnt5KLEZQeN9wG5ysVp9jt6ecQJKA6cLmK EwZIknsBW/zh5Vz1YItwOlqEBqrRAGEVEbctmvPaG+RTZybTII1rEIEXKcqb5ARF zD5lR1tuWirO53OS0jyd3v/5mRrHqqiOPtq5JyTlLhas1/D3Ip/8w== Received: from ppma23.wdc07v.mail.ibm.com (5d.69.3da9.ip4.static.sl-reverse.com [169.61.105.93]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4f26ped1tq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 03 Jul 2026 02:30:17 +0000 (GMT) Received: from pps.filterd (ppma23.wdc07v.mail.ibm.com [127.0.0.1]) by ppma23.wdc07v.mail.ibm.com (8.18.1.7/8.18.1.7) with ESMTP id 6632JinI023662; Fri, 3 Jul 2026 02:30:16 GMT Received: from smtprelay05.wdc07v.mail.ibm.com ([172.16.1.72]) by ppma23.wdc07v.mail.ibm.com (PPS) with ESMTPS id 4f2tbhppff-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 03 Jul 2026 02:30:16 +0000 (GMT) Received: from smtpav04.dal12v.mail.ibm.com (smtpav04.dal12v.mail.ibm.com [10.241.53.103]) by smtprelay05.wdc07v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 6632UEgr31982200 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 3 Jul 2026 02:30:14 GMT Received: from smtpav04.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6A13058062; Fri, 3 Jul 2026 02:30:14 +0000 (GMT) Received: from smtpav04.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A6BA65805A; Fri, 3 Jul 2026 02:30:11 +0000 (GMT) Received: from fedora-workstation.lan (unknown [9.61.151.121]) by smtpav04.dal12v.mail.ibm.com (Postfix) with ESMTP; Fri, 3 Jul 2026 02:30:11 +0000 (GMT) From: Zhuoying Cai To: 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, farman@linux.ibm.com, mjrosato@linux.ibm.com, iii@linux.ibm.com, eblake@redhat.com, armbru@redhat.com, zycai@linux.ibm.com, alifm@linux.ibm.com, brueckner@linux.ibm.com, pierrick.bouvier@oss.qualcomm.com, jdaley@linux.ibm.com Subject: [PATCH v13 17/33] hw/s390x/ipl: Add IPIB flags to IPL Parameter Block Date: Thu, 2 Jul 2026 22:29:15 -0400 Message-ID: <20260703022933.1805010-18-zycai@linux.ibm.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260703022933.1805010-1-zycai@linux.ibm.com> References: <20260703022933.1805010-1-zycai@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: t2a8ZPBnxA_W4hxsmUJTpnxdUOU1XmCB X-Proofpoint-Spam-Info: AW1haW4tMjYwNzAzMDAyMCBTYWx0ZWRfXzwkrSpPJKyN9 H/6vXGGoqx/rnIm5T/E1FTN3NtPPeKcVeRiMUqYDXem6vGD3ZBWqZ1MQcKvjRBmA69Hi9CaqoPp +T78de7Hw7hZuX9PXahwHWju0SY1rqU= X-Authority-Analysis: v=2.4 cv=edsNubEH c=1 sm=1 tr=0 ts=6a471eb9 cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=iQ6ETzBq9ecOQQE5vZCe:22 a=VnNF1IyMAAAA:8 a=20KFwNOVAAAA:8 a=ZDXLRS20C3ackK2NFGcA:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzAzMDAyMCBTYWx0ZWRfX8aTtFDWqnqW2 fKsa14FROqy/4g3dAs+y9P/dW0rbWwjS4z413OXhOI6zi0uQBGlzo9ywb98WR8mIkauj/nZAyn2 9YQSnKj+egSgAziG7yVlvz4qlkbGPPe685hG7jUfd+UYJG0mjif7MMsfESv1mtx8FiWBSk68B2V gtMiVLXPp60mfPuQayJra8JCbhHxviov+bwRicELxl9fSOTj081+hSlZHLIaIOEdUlAl1wctnUC hfoVQ/LJYF+pIRjQjBImdHzD6lDK27qdWaGabmwsJvKacFx42yXddYNcIvsTPed0y/d9U73fTaM hZHWBZXs+vlrz87tVc1D5ELw7YVl6hdv9SFmPIyR96k6miarNqGEUIvSWL+nPNjkQkEwyvHK0N4 5/e9tXgPGkSMDkrp7A3wFiU2Dp93rD4JU5+zor0+4ioomTx4rOB7n9/iMvIkiMvHrmMHxzSlwRR M6+2hCEx/O29UPHs4jw== X-Proofpoint-ORIG-GUID: t2a8ZPBnxA_W4hxsmUJTpnxdUOU1XmCB 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_01,2026-06-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 adultscore=0 impostorscore=0 bulkscore=0 spamscore=0 suspectscore=0 clxscore=1015 lowpriorityscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607030020 Received-SPF: pass client-ip=148.163.156.1; envelope-from=zycai@linux.ibm.com; helo=mx0a-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_H4=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 Add IPIB flags to IPL Parameter Block to determine if IPL needs to perform securely and if IPL Information Report Block (IIRB) exists. Move DIAG308 flags to a separated header file and add flags for secure IPL. Move IPLB length related definitions to include/hw/s390x/ipl/qipl.h and add a maximum length constant to support secure IPL. Secure boot in audit mode will perform if certificate(s) exist in the key store. IIRB will exist and results of verification will be stored in IIRB. To ensure proper alignment of the IIRB and prevent overlap, set iplb->len to the maximum length of the IPLB, allowing alignment constraints to be determined based on its size. Signed-off-by: Zhuoying Cai Reviewed-by: Thomas Huth Reviewed-by: Collin Walling Reviewed-by: Jared Rossi --- hw/s390x/ipl.c | 36 ++++++++++++++++++++++++++++++++++ hw/s390x/ipl.h | 24 ----------------------- include/hw/s390x/ipl/diag308.h | 34 ++++++++++++++++++++++++++++++++ include/hw/s390x/ipl/qipl.h | 13 +++++++++++- 4 files changed, 82 insertions(+), 25 deletions(-) create mode 100644 include/hw/s390x/ipl/diag308.h diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c index 09c24203c7..f9f14d7b67 100644 --- a/hw/s390x/ipl.c +++ b/hw/s390x/ipl.c @@ -461,6 +461,34 @@ S390IPLCertificateStore *s390_ipl_get_certificate_store(void) return &ipl->cert_store; } +static bool s390_has_certificate(void) +{ + S390IPLState *ipl = get_ipl_device(); + + return ipl->cert_store.count > 0; +} + +static void s390_set_secure_boot_flags(IplParameterBlock *iplb, + bool audit_mode) +{ + if (!audit_mode) { + return; + } + + /* + * For audit mode, enable the IPL Information + * Report (IPLIR) flag so that the firmware generates an IPL + * Information Report Block (IIRB). + * + * Results of secure boot will be stored in IIRB. + * + * Extend the IPL parameter block to its maximum length to ensure + * sufficient space for the BIOS to populate the IIRB. + */ + iplb->hdr_flags |= DIAG308_IPIB_FLAGS_IPLIR; + iplb->len = cpu_to_be32(S390_IPLB_MAX_LEN); +} + static bool s390_build_iplb(DeviceState *dev_st, IplParameterBlock *iplb) { CcwDevice *ccw_dev = NULL; @@ -517,6 +545,8 @@ static bool s390_build_iplb(DeviceState *dev_st, IplParameterBlock *iplb) s390_ipl_convert_loadparm((char *)lp, iplb->loadparm); iplb->flags |= DIAG308_FLAGS_LP_VALID; + s390_set_secure_boot_flags(iplb, s390_has_certificate()); + return true; } @@ -653,6 +683,12 @@ void s390_ipl_update_diag308(IplParameterBlock *iplb) } else { ipl->iplb = *iplb; ipl->iplb_valid = true; + + /* + * The kernel does not preserve secure boot flags across a reboot. + * Re-apply them here based on the current machine configuration. + */ + s390_set_secure_boot_flags(&ipl->iplb, s390_has_certificate()); } update_machine_ipl_properties(iplb); diff --git a/hw/s390x/ipl.h b/hw/s390x/ipl.h index f5a49a4431..9807ef18f2 100644 --- a/hw/s390x/ipl.h +++ b/hw/s390x/ipl.h @@ -23,7 +23,6 @@ #include "qom/object.h" #include "target/s390x/kvm/pv.h" -#define DIAG308_FLAGS_LP_VALID 0x80 #define MAX_BOOT_DEVS 8 /* Max number of devices that may have a bootindex */ void s390_ipl_convert_loadparm(char *ascii_lp, uint8_t *ebcdic_lp); @@ -90,29 +89,6 @@ struct S390IPLState { }; QEMU_BUILD_BUG_MSG(offsetof(S390IPLState, iplb) & 3, "alignment of iplb wrong"); -#define DIAG_308_RC_OK 0x0001 -#define DIAG_308_RC_NO_CONF 0x0102 -#define DIAG_308_RC_INVALID 0x0402 -#define DIAG_308_RC_NO_PV_CONF 0x0902 -#define DIAG_308_RC_INVAL_FOR_PV 0x0a02 - -#define DIAG308_RESET_MOD_CLR 0 -#define DIAG308_RESET_LOAD_NORM 1 -#define DIAG308_LOAD_CLEAR 3 -#define DIAG308_LOAD_NORMAL_DUMP 4 -#define DIAG308_SET 5 -#define DIAG308_STORE 6 -#define DIAG308_PV_SET 8 -#define DIAG308_PV_STORE 9 -#define DIAG308_PV_START 10 - -#define S390_IPLB_HEADER_LEN 8 -#define S390_IPLB_MIN_PV_LEN 148 -#define S390_IPLB_MIN_CCW_LEN 200 -#define S390_IPLB_MIN_FCP_LEN 384 -#define S390_IPLB_MIN_PCI_LEN 376 -#define S390_IPLB_MIN_QEMU_SCSI_LEN 200 - static inline bool iplb_valid_len(IplParameterBlock *iplb) { return be32_to_cpu(iplb->len) <= sizeof(IplParameterBlock); diff --git a/include/hw/s390x/ipl/diag308.h b/include/hw/s390x/ipl/diag308.h new file mode 100644 index 0000000000..6e62f29215 --- /dev/null +++ b/include/hw/s390x/ipl/diag308.h @@ -0,0 +1,34 @@ +/* + * S/390 DIAGNOSE 308 definitions and structures + * + * Copyright 2025 IBM Corp. + * Author(s): Zhuoying Cai + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef S390X_DIAG308_H +#define S390X_DIAG308_H + +#define DIAG_308_RC_OK 0x0001 +#define DIAG_308_RC_NO_CONF 0x0102 +#define DIAG_308_RC_INVALID 0x0402 +#define DIAG_308_RC_NO_PV_CONF 0x0902 +#define DIAG_308_RC_INVAL_FOR_PV 0x0a02 + +#define DIAG308_RESET_MOD_CLR 0 +#define DIAG308_RESET_LOAD_NORM 1 +#define DIAG308_LOAD_CLEAR 3 +#define DIAG308_LOAD_NORMAL_DUMP 4 +#define DIAG308_SET 5 +#define DIAG308_STORE 6 +#define DIAG308_PV_SET 8 +#define DIAG308_PV_STORE 9 +#define DIAG308_PV_START 10 + +#define DIAG308_FLAGS_LP_VALID 0x80 + +#define DIAG308_IPIB_FLAGS_SIPL 0x40 +#define DIAG308_IPIB_FLAGS_IPLIR 0x20 + +#endif diff --git a/include/hw/s390x/ipl/qipl.h b/include/hw/s390x/ipl/qipl.h index 9940f1457c..a2180719b1 100644 --- a/include/hw/s390x/ipl/qipl.h +++ b/include/hw/s390x/ipl/qipl.h @@ -12,6 +12,8 @@ #ifndef S390X_QIPL_H #define S390X_QIPL_H +#include "diag308.h" + /* Boot Menu flags */ #define QIPL_FLAG_BM_OPTS_CMD 0x80 #define QIPL_FLAG_BM_OPTS_ZIPL 0x40 @@ -31,6 +33,14 @@ typedef enum S390IplType S390IplType; #define QEMU_DEFAULT_IPL S390_IPL_TYPE_CCW +#define S390_IPLB_HEADER_LEN 8 +#define S390_IPLB_MIN_PV_LEN 148 +#define S390_IPLB_MIN_CCW_LEN 200 +#define S390_IPLB_MIN_FCP_LEN 384 +#define S390_IPLB_MIN_PCI_LEN 376 +#define S390_IPLB_MIN_QEMU_SCSI_LEN 200 +#define S390_IPLB_MAX_LEN 4096 + #define MAX_CERTIFICATES 64 /* largest supported block size - same as VIRTIO_DASD_DEFAULT_BLOCK_SIZE */ #define VIRTIO_MAX_BLOCK_SIZE 4096 @@ -125,7 +135,8 @@ typedef struct IplBlockPci IplBlockPci; union IplParameterBlock { struct { uint32_t len; - uint8_t reserved0[3]; + uint8_t hdr_flags; + uint8_t reserved0[2]; uint8_t version; uint32_t blk0_len; uint8_t pbt; -- 2.54.0