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 lists.gnu.org (lists.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 A8164CAC5A0 for ; Wed, 17 Sep 2025 23:23:41 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uz1Tp-0005r6-9K; Wed, 17 Sep 2025 19:22:29 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uz1Te-0005gY-JM; Wed, 17 Sep 2025 19:22:18 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uz1Tb-0002Qu-7W; Wed, 17 Sep 2025 19:22:16 -0400 Received: from pps.filterd (m0356516.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 58HIW9iT024719; Wed, 17 Sep 2025 23:21:53 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=jhcDyquXiO0bnxb3n ji3453q8HHLeqFiYl/YQ/I4BiU=; b=WdAYzes74Y9fv0a5/NvRF3I0hEhs5dvXF d8jyHc0x1FvBJxCxhk0zr4N2jkpyZRZ5nP+NHqXLkEnunK1l4j7tDcqJGrDHFV83 Rf/UG2+GdMEV3SwupqZkeZ7uQea1TQ5nPLyWSY8gxXRLE8z7leNmGQgVWe4Eyomb bJ3crbCunoSM5iFxRLCQBnh8BN+E5EESu8GiyIDtrOMJNRGFtepzaCzUjpwwS6sp 1rOTOm5TVOJDIMKgYsQ043ETkgpDm1YIGsddEwq9W96mku+Q/I5e2t6dVLTYYZcx FfCpePBveQwEKPoR2E8y1V5RcoAXEYPk7xPenVYtrDaCbANwB82Lg== Received: from ppma13.dal12v.mail.ibm.com (dd.9e.1632.ip4.static.sl-reverse.com [50.22.158.221]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 497g4qpf21-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 17 Sep 2025 23:21:53 +0000 (GMT) Received: from pps.filterd (ppma13.dal12v.mail.ibm.com [127.0.0.1]) by ppma13.dal12v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id 58HMU6Mw018625; Wed, 17 Sep 2025 23:21:52 GMT Received: from smtprelay05.dal12v.mail.ibm.com ([172.16.1.7]) by ppma13.dal12v.mail.ibm.com (PPS) with ESMTPS id 495n5mkma7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 17 Sep 2025 23:21:52 +0000 Received: from smtpav02.dal12v.mail.ibm.com (smtpav02.dal12v.mail.ibm.com [10.241.53.101]) by smtprelay05.dal12v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 58HNLpOW12124784 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 17 Sep 2025 23:21:51 GMT Received: from smtpav02.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CC3F758051; Wed, 17 Sep 2025 23:21:51 +0000 (GMT) Received: from smtpav02.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C36725805E; Wed, 17 Sep 2025 23:21:50 +0000 (GMT) Received: from fedora-workstation.ibmuc.com (unknown [9.61.34.172]) by smtpav02.dal12v.mail.ibm.com (Postfix) with ESMTP; Wed, 17 Sep 2025 23:21:50 +0000 (GMT) From: Zhuoying Cai To: thuth@redhat.com, berrange@redhat.com, richard.henderson@linaro.org, david@redhat.com, jrossi@linux.ibm.com, qemu-s390x@nongnu.org, qemu-devel@nongnu.org Cc: 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 Subject: [PATCH v6 16/28] s390x: Guest support for Secure-IPL Facility Date: Wed, 17 Sep 2025 19:21:18 -0400 Message-ID: <20250917232131.495848-17-zycai@linux.ibm.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250917232131.495848-1-zycai@linux.ibm.com> References: <20250917232131.495848-1-zycai@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: TyHUXxKuDmqpvLPOGl_LBzA6XzdbwWjl X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwOTE2MDIwNCBTYWx0ZWRfXyAEVcdCb+Lvr 111gshduw9CiWeBVkJ/UJGmivvB6vfyLDvfICZJtO8z3DFmgL8CUq1lJ0nb9YSWh4o4StqpxCDq ZmPigtLh3gsmcPLADu9g7zfJOJSLtuIvGC+GViL8ZKz8OpPBIw1GirguVZ8I87T3L7fx5YKEza/ R7qfFOO8qz2uo4yqGfj4JzWHVf4meYxasSCLfE2G2/F8FQ9tV19K7pgsiCvZd8nuSijO9uBIfv4 1CqpNBTQO4P+LXwhHFvqulXZ3lAgYXtgQKROm2hBnf3uU3RTlk5URsy4y3UZcFkcBiC7VpO+0ve g8hUEIwtGcTT46j7fMwI4ryurtCfyBlSReOX7bJGgqECJDMBYiUXDuRd7iBftzl7PR0QW06Og+s R0WbLDTy X-Authority-Analysis: v=2.4 cv=R8oDGcRX c=1 sm=1 tr=0 ts=68cb4291 cx=c_pps a=AfN7/Ok6k8XGzOShvHwTGQ==:117 a=AfN7/Ok6k8XGzOShvHwTGQ==:17 a=yJojWOMRYYMA:10 a=VnNF1IyMAAAA:8 a=Bichc5AjJS213ZhIJUEA:9 X-Proofpoint-GUID: TyHUXxKuDmqpvLPOGl_LBzA6XzdbwWjl X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-09-17_01,2025-09-17_02,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 suspectscore=0 malwarescore=0 bulkscore=0 spamscore=0 adultscore=0 impostorscore=0 priorityscore=1501 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2509160204 Received-SPF: pass client-ip=148.163.158.5; envelope-from=zycai@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_H4=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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Introduce Secure-IPL (SIPL) facility. Use fac_ipl to represent bytes 136 and 137 for IPL device facilities of the SCLP Read Info block. Availability of SIPL facility is determined by byte 136 bit 1 of the SCLP Read Info block. Byte 136's facilities cannot be represented without the availability of the extended-length-SCCB, so add it as a check for consistency. Secure IPL is not available for guests under protected virtualization. This feature is available starting with the gen16 CPU model. Signed-off-by: Zhuoying Cai Reviewed-by: Collin Walling --- hw/s390x/sclp.c | 2 ++ include/hw/s390x/sclp.h | 4 +++- target/s390x/cpu_features.c | 4 ++++ target/s390x/cpu_features.h | 1 + target/s390x/cpu_features_def.h.inc | 3 +++ target/s390x/cpu_models.c | 2 ++ target/s390x/gen-features.c | 2 ++ target/s390x/kvm/kvm.c | 3 +++ 8 files changed, 20 insertions(+), 1 deletion(-) diff --git a/hw/s390x/sclp.c b/hw/s390x/sclp.c index 9718564fa4..69d3328a3d 100644 --- a/hw/s390x/sclp.c +++ b/hw/s390x/sclp.c @@ -145,6 +145,8 @@ static void read_SCP_info(SCLPDevice *sclp, SCCB *sccb) if (s390_has_feat(S390_FEAT_EXTENDED_LENGTH_SCCB)) { s390_get_feat_block(S390_FEAT_TYPE_SCLP_FAC134, &read_info->fac134); + s390_get_feat_block(S390_FEAT_TYPE_SCLP_FAC_IPL, + read_info->fac_ipl); } read_info->facilities = cpu_to_be64(SCLP_HAS_CPU_INFO | diff --git a/include/hw/s390x/sclp.h b/include/hw/s390x/sclp.h index d32f6180e0..bfd330c340 100644 --- a/include/hw/s390x/sclp.h +++ b/include/hw/s390x/sclp.h @@ -136,7 +136,9 @@ typedef struct ReadInfo { uint32_t hmfai; uint8_t _reserved7[134 - 128]; /* 128-133 */ uint8_t fac134; - uint8_t _reserved8[144 - 135]; /* 135-143 */ + uint8_t _reserved8; + uint8_t fac_ipl[2]; /* 136-137 */ + uint8_t _reserved9[144 - 137]; /* 138-143 */ struct CPUEntry entries[]; /* * When the Extended-Length SCCB (ELS) feature is enabled the diff --git a/target/s390x/cpu_features.c b/target/s390x/cpu_features.c index 436471f4b4..200bd8c15b 100644 --- a/target/s390x/cpu_features.c +++ b/target/s390x/cpu_features.c @@ -119,6 +119,7 @@ void s390_fill_feat_block(const S390FeatBitmap features, S390FeatType type, * Some facilities are not available for CPUs in protected mode: * - All SIE facilities because SIE is not available * - DIAG318 + * - Secure IPL Facility * * As VMs can move in and out of protected mode the CPU model * doesn't protect us from that problem because it is only @@ -149,6 +150,9 @@ void s390_fill_feat_block(const S390FeatBitmap features, S390FeatType type, clear_be_bit(s390_feat_def(S390_FEAT_DIAG_318)->bit, data); clear_be_bit(s390_feat_def(S390_FEAT_CERT_STORE)->bit, data); break; + case S390_FEAT_TYPE_SCLP_FAC_IPL: + clear_be_bit(s390_feat_def(S390_FEAT_SIPL)->bit, data); + break; default: return; } diff --git a/target/s390x/cpu_features.h b/target/s390x/cpu_features.h index 5635839d03..b038198555 100644 --- a/target/s390x/cpu_features.h +++ b/target/s390x/cpu_features.h @@ -24,6 +24,7 @@ typedef enum { S390_FEAT_TYPE_SCLP_CONF_CHAR, S390_FEAT_TYPE_SCLP_CONF_CHAR_EXT, S390_FEAT_TYPE_SCLP_FAC134, + S390_FEAT_TYPE_SCLP_FAC_IPL, S390_FEAT_TYPE_SCLP_CPU, S390_FEAT_TYPE_MISC, S390_FEAT_TYPE_PLO, diff --git a/target/s390x/cpu_features_def.h.inc b/target/s390x/cpu_features_def.h.inc index 941a69e013..55eef618b8 100644 --- a/target/s390x/cpu_features_def.h.inc +++ b/target/s390x/cpu_features_def.h.inc @@ -140,6 +140,9 @@ DEF_FEAT(SIE_IBS, "ibs", SCLP_CONF_CHAR_EXT, 10, "SIE: Interlock-and-broadcast-s DEF_FEAT(DIAG_318, "diag318", SCLP_FAC134, 0, "Control program name and version codes") DEF_FEAT(CERT_STORE, "cstore", SCLP_FAC134, 5, "Provide Certificate Store functions") +/* Features exposed via SCLP SCCB Facilities byte 136 - 137 (bit numbers relative to byte-136) */ +DEF_FEAT(SIPL, "sipl", SCLP_FAC_IPL, 1, "Secure-IPL facility") + /* Features exposed via SCLP CPU info. */ DEF_FEAT(SIE_F2, "sief2", SCLP_CPU, 4, "SIE: interception format 2 (Virtual SIE)") DEF_FEAT(SIE_SKEY, "skey", SCLP_CPU, 5, "SIE: Storage-key facility") diff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c index 6b8471700e..f99536ef9a 100644 --- a/target/s390x/cpu_models.c +++ b/target/s390x/cpu_models.c @@ -263,6 +263,7 @@ bool s390_has_feat(S390Feat feat) case S390_FEAT_SIE_CMMA: case S390_FEAT_SIE_PFMFI: case S390_FEAT_SIE_IBS: + case S390_FEAT_SIPL: case S390_FEAT_CONFIGURATION_TOPOLOGY: return false; break; @@ -507,6 +508,7 @@ static void check_consistency(const S390CPUModel *model) { S390_FEAT_AP_QUEUE_INTERRUPT_CONTROL, S390_FEAT_AP }, { S390_FEAT_DIAG_318, S390_FEAT_EXTENDED_LENGTH_SCCB }, { S390_FEAT_CERT_STORE, S390_FEAT_EXTENDED_LENGTH_SCCB }, + { S390_FEAT_SIPL, S390_FEAT_EXTENDED_LENGTH_SCCB }, { S390_FEAT_NNPA, S390_FEAT_VECTOR }, { S390_FEAT_RDP, S390_FEAT_LOCAL_TLB_CLEARING }, { S390_FEAT_UV_FEAT_AP, S390_FEAT_AP }, diff --git a/target/s390x/gen-features.c b/target/s390x/gen-features.c index 6c20c3a862..bd2060ab93 100644 --- a/target/s390x/gen-features.c +++ b/target/s390x/gen-features.c @@ -721,6 +721,7 @@ static uint16_t full_GEN16_GA1[] = { S390_FEAT_UV_FEAT_AP, S390_FEAT_UV_FEAT_AP_INTR, S390_FEAT_CERT_STORE, + S390_FEAT_SIPL, }; static uint16_t full_GEN17_GA1[] = { @@ -922,6 +923,7 @@ static uint16_t qemu_MAX[] = { S390_FEAT_PRNO_TRNG, S390_FEAT_EXTENDED_LENGTH_SCCB, S390_FEAT_CERT_STORE, + S390_FEAT_SIPL, }; /****** END FEATURE DEFS ******/ diff --git a/target/s390x/kvm/kvm.c b/target/s390x/kvm/kvm.c index ae6cd3d506..31bd574dec 100644 --- a/target/s390x/kvm/kvm.c +++ b/target/s390x/kvm/kvm.c @@ -2520,6 +2520,9 @@ bool kvm_s390_get_host_cpu_model(S390CPUModel *model, Error **errp) set_bit(S390_FEAT_CERT_STORE, model->features); + /* Some Secure IPL facilities are emulated by QEMU */ + set_bit(S390_FEAT_SIPL, model->features); + /* Test for Ultravisor features that influence secure guest behavior */ query_uv_feat_guest(model->features); -- 2.50.1