{"id":2219383,"url":"http://patchwork.ozlabs.org/api/1.0/patches/2219383/?format=json","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.0/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260402221453.1602899-17-zycai@linux.ibm.com>","date":"2026-04-02T22:14:38","name":"[v10,16/30] s390x: Guest support for Secure-IPL Facility","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"1c548810eda8cb6f319a246561c45f85832063ff","submitter":{"id":90643,"url":"http://patchwork.ozlabs.org/api/1.0/people/90643/?format=json","name":"Zhuoying Cai","email":"zycai@linux.ibm.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260402221453.1602899-17-zycai@linux.ibm.com/mbox/","series":[{"id":498557,"url":"http://patchwork.ozlabs.org/api/1.0/series/498557/?format=json","date":"2026-04-02T22:14:35","name":"Secure IPL Support for SCSI Scheme of virtio-blk/virtio-scsi Devices","version":10,"mbox":"http://patchwork.ozlabs.org/series/498557/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2219383/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=tl5+2CxB;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc\n :content-transfer-encoding:date:from:in-reply-to:message-id\n :mime-version:references:subject:to; s=pp1; bh=ZBv08pQ05NR1iOEpF\n CdnkOz8FE6Qof7cX46vh8HxqFU=; b=tl5+2CxBwqedDSotNp4WWlQDyQe1DcIvA\n ggF1OX0d+sdcHLGaagMiIqmfLs4u/7SbnW8XpzifAowBU+gLf+0ZghRuvruVGwQ5\n MnYtz+Ys20SxPVy0NAC9Qs+o7/IOg2dmvqlcZ3JXJkTfADPqY+An4C5dKe1fFO3L\n 6C0lQrfBrAnuVYjaolUlpPjWc4I1uQl+70nVxLgdSXpZ7PLU/4WUfm2LK5wruqre\n OAl7zuToZIZs+omod/E7X0bn40uqIWlHPe4lG8i1dzPVM6htCQv9369sjOxRZiZx\n H21AQIpd+b+PUDo335hyYHvvIWBx/LzNfbRRZJ3ttwDJamRoyCI1Q==","From":"Zhuoying Cai ","To":"qemu-s390x@nongnu.org, qemu-devel@nongnu.org","Cc":"jrossi@linux.ibm.com, cohuck@redhat.com, berrange@redhat.com,\n richard.henderson@linaro.org, pierrick.bouvier@linaro.org,\n david@kernel.org, walling@linux.ibm.com, jjherne@linux.ibm.com,\n pasic@linux.ibm.com, borntraeger@linux.ibm.com, farman@linux.ibm.com,\n mjrosato@linux.ibm.com, iii@linux.ibm.com, eblake@redhat.com,\n armbru@redhat.com, zycai@linux.ibm.com, alifm@linux.ibm.com,\n brueckner@linux.ibm.com, jdaley@linux.ibm.com","Subject":"[PATCH v10 16/30] s390x: Guest support for Secure-IPL Facility","Date":"Thu, 2 Apr 2026 18:14:38 -0400","Message-ID":"<20260402221453.1602899-17-zycai@linux.ibm.com>","X-Mailer":"git-send-email 2.53.0","In-Reply-To":"<20260402221453.1602899-1-zycai@linux.ibm.com>","References":"<20260402221453.1602899-1-zycai@linux.ibm.com>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-TM-AS-GCONF":"00","X-Authority-Analysis":"v=2.4 cv=RsjI7SmK c=1 sm=1 tr=0 ts=69ceea85 cx=c_pps\n a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17\n a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22\n a=V8glGbnc2Ofi9Qvn3v5h:22 a=VnNF1IyMAAAA:8 a=20KFwNOVAAAA:8\n a=Bichc5AjJS213ZhIJUEA:9","X-Proofpoint-GUID":"1LN-9eSNNbgAT3czvm-EhP6vss6dzzQZ","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwNDAyMDE5NSBTYWx0ZWRfX6503xnRkNMxE\n 3NDYlqCYYFrTGYRp+XcSERZUOr7xVuirOpBJhPQMSH/hye8lcPk3LRi7RA9zkUmcdJ83NujhsQo\n R9uwKLcUvO+/Uz1OsK+ar4qyz2LBq7APs8TdzYIpEYhnFtKWsof1zastgsdJJRRO0ZubFgNdpWg\n bx9eW73uf3ki082C3jqPJQ6dulykRJePh3zIEGkQoxISzTTVTk5aY12j111g/74XnuXPZMlYskG\n J8WEIW03XK72CwP3DPJjI+iJP0z+0rPN4mKnr41/gSt/uHG3M6GckDb8OSvPnIu66U+rBnnw7vP\n TuHYi+9MbUrAdsDqJs0z14jKmcvF8XQKxayCMc0qMtWZ+iJEnoff+ZICfyWlWiBnjUrsIyIoiPz\n CyqJDKWV180tB9Ap8DE8Br49lM0rFed4+BJREsMny9BqHbJxXWfXdExO27e+4USIfiMTqtGJuEQ\n PC1h0X/oLVAAekP/mcw==","X-Proofpoint-ORIG-GUID":"1LN-9eSNNbgAT3czvm-EhP6vss6dzzQZ","X-Proofpoint-Virus-Version":"vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-02_04,2026-04-02_05,2025-10-01_01","X-Proofpoint-Spam-Details":"rule=outbound_notspam policy=outbound score=0\n impostorscore=0 bulkscore=0 priorityscore=1501 lowpriorityscore=0\n suspectscore=0 malwarescore=0 spamscore=0 clxscore=1015 phishscore=0\n adultscore=0 classifier=typeunknown authscore=0 authtc= authcc=\n route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001\n definitions=main-2604020195","Received-SPF":"pass client-ip=148.163.158.5; envelope-from=zycai@linux.ibm.com;\n 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,\n DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7,\n RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001,\n RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001,\n 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":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"Introduce Secure-IPL (SIPL) facility.\n\nUse fac_ipl to represent bytes 136 and 137 for IPL device facilities\nof the SCLP Read Info block.\n\nAvailability of SIPL facility is determined by byte 136 bit 1 of the\nSCLP Read Info block. Byte 136's facilities cannot be represented\nwithout the availability of the extended-length-SCCB, so add it as a\ncheck for consistency.\n\nSecure IPL is not available for guests under protected virtualization.\n\nThis feature is available starting with the gen16 CPU model.\n\nSigned-off-by: Zhuoying Cai \nReviewed-by: Collin Walling \nReviewed-by: Thomas Huth \n---\n hw/s390x/sclp.c | 2 ++\n include/hw/s390x/sclp.h | 4 +++-\n target/s390x/cpu_features.c | 4 ++++\n target/s390x/cpu_features.h | 1 +\n target/s390x/cpu_features_def.h.inc | 3 +++\n target/s390x/cpu_models.c | 2 ++\n target/s390x/gen-features.c | 2 ++\n target/s390x/kvm/kvm.c | 3 +++\n 8 files changed, 20 insertions(+), 1 deletion(-)","diff":"diff --git a/hw/s390x/sclp.c b/hw/s390x/sclp.c\nindex b9c3983df1..666bae33f0 100644\n--- a/hw/s390x/sclp.c\n+++ b/hw/s390x/sclp.c\n@@ -146,6 +146,8 @@ static void read_SCP_info(SCLPDevice *sclp, SCCB *sccb)\n if (s390_has_feat(S390_FEAT_EXTENDED_LENGTH_SCCB)) {\n s390_get_feat_block(S390_FEAT_TYPE_SCLP_FAC134,\n &read_info->fac134);\n+ s390_get_feat_block(S390_FEAT_TYPE_SCLP_FAC_IPL,\n+ read_info->fac_ipl);\n }\n \n read_info->facilities = cpu_to_be64(SCLP_HAS_CPU_INFO |\ndiff --git a/include/hw/s390x/sclp.h b/include/hw/s390x/sclp.h\nindex ddc61f1c21..a9595d8007 100644\n--- a/include/hw/s390x/sclp.h\n+++ b/include/hw/s390x/sclp.h\n@@ -136,7 +136,9 @@ typedef struct ReadInfo {\n uint32_t hmfai;\n uint8_t _reserved7[134 - 128]; /* 128-133 */\n uint8_t fac134;\n- uint8_t _reserved8[144 - 135]; /* 135-143 */\n+ uint8_t _reserved8;\n+ uint8_t fac_ipl[2]; /* 136-137 */\n+ uint8_t _reserved9[144 - 138]; /* 138-143 */\n struct CPUEntry entries[];\n /*\n * When the Extended-Length SCCB (ELS) feature is enabled the\ndiff --git a/target/s390x/cpu_features.c b/target/s390x/cpu_features.c\nindex 436471f4b4..200bd8c15b 100644\n--- a/target/s390x/cpu_features.c\n+++ b/target/s390x/cpu_features.c\n@@ -119,6 +119,7 @@ void s390_fill_feat_block(const S390FeatBitmap features, S390FeatType type,\n * Some facilities are not available for CPUs in protected mode:\n * - All SIE facilities because SIE is not available\n * - DIAG318\n+ * - Secure IPL Facility\n *\n * As VMs can move in and out of protected mode the CPU model\n * doesn't protect us from that problem because it is only\n@@ -149,6 +150,9 @@ void s390_fill_feat_block(const S390FeatBitmap features, S390FeatType type,\n clear_be_bit(s390_feat_def(S390_FEAT_DIAG_318)->bit, data);\n clear_be_bit(s390_feat_def(S390_FEAT_CERT_STORE)->bit, data);\n break;\n+ case S390_FEAT_TYPE_SCLP_FAC_IPL:\n+ clear_be_bit(s390_feat_def(S390_FEAT_SIPL)->bit, data);\n+ break;\n default:\n return;\n }\ndiff --git a/target/s390x/cpu_features.h b/target/s390x/cpu_features.h\nindex 5635839d03..b038198555 100644\n--- a/target/s390x/cpu_features.h\n+++ b/target/s390x/cpu_features.h\n@@ -24,6 +24,7 @@ typedef enum {\n S390_FEAT_TYPE_SCLP_CONF_CHAR,\n S390_FEAT_TYPE_SCLP_CONF_CHAR_EXT,\n S390_FEAT_TYPE_SCLP_FAC134,\n+ S390_FEAT_TYPE_SCLP_FAC_IPL,\n S390_FEAT_TYPE_SCLP_CPU,\n S390_FEAT_TYPE_MISC,\n S390_FEAT_TYPE_PLO,\ndiff --git a/target/s390x/cpu_features_def.h.inc b/target/s390x/cpu_features_def.h.inc\nindex 2976ecd0ee..bcf8a666e4 100644\n--- a/target/s390x/cpu_features_def.h.inc\n+++ b/target/s390x/cpu_features_def.h.inc\n@@ -140,6 +140,9 @@ DEF_FEAT(SIE_IBS, \"ibs\", SCLP_CONF_CHAR_EXT, 10, \"SIE: Interlock-and-broadcast-s\n DEF_FEAT(DIAG_318, \"diag318\", SCLP_FAC134, 0, \"Control program name and version codes\")\n DEF_FEAT(CERT_STORE, \"cstore\", SCLP_FAC134, 5, \"Certificate Store functions\")\n \n+/* Features exposed via SCLP SCCB Facilities byte 136 - 137 (bit numbers relative to byte-136) */\n+DEF_FEAT(SIPL, \"sipl\", SCLP_FAC_IPL, 1, \"Secure-IPL facility\")\n+\n /* Features exposed via SCLP CPU info. */\n DEF_FEAT(SIE_F2, \"sief2\", SCLP_CPU, 4, \"SIE: interception format 2 (Virtual SIE)\")\n DEF_FEAT(SIE_SKEY, \"skey\", SCLP_CPU, 5, \"SIE: Storage-key facility\")\ndiff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c\nindex 962f135f42..a52e34aa95 100644\n--- a/target/s390x/cpu_models.c\n+++ b/target/s390x/cpu_models.c\n@@ -263,6 +263,7 @@ bool s390_has_feat(S390Feat feat)\n case S390_FEAT_SIE_CMMA:\n case S390_FEAT_SIE_PFMFI:\n case S390_FEAT_SIE_IBS:\n+ case S390_FEAT_SIPL:\n case S390_FEAT_CONFIGURATION_TOPOLOGY:\n return false;\n break;\n@@ -507,6 +508,7 @@ static void check_consistency(const S390CPUModel *model)\n { S390_FEAT_AP_QUEUE_INTERRUPT_CONTROL, S390_FEAT_AP },\n { S390_FEAT_DIAG_318, S390_FEAT_EXTENDED_LENGTH_SCCB },\n { S390_FEAT_CERT_STORE, S390_FEAT_EXTENDED_LENGTH_SCCB },\n+ { S390_FEAT_SIPL, S390_FEAT_EXTENDED_LENGTH_SCCB },\n { S390_FEAT_NNPA, S390_FEAT_VECTOR },\n { S390_FEAT_RDP, S390_FEAT_LOCAL_TLB_CLEARING },\n { S390_FEAT_UV_FEAT_AP, S390_FEAT_AP },\ndiff --git a/target/s390x/gen-features.c b/target/s390x/gen-features.c\nindex 6c20c3a862..bd2060ab93 100644\n--- a/target/s390x/gen-features.c\n+++ b/target/s390x/gen-features.c\n@@ -721,6 +721,7 @@ static uint16_t full_GEN16_GA1[] = {\n S390_FEAT_UV_FEAT_AP,\n S390_FEAT_UV_FEAT_AP_INTR,\n S390_FEAT_CERT_STORE,\n+ S390_FEAT_SIPL,\n };\n \n static uint16_t full_GEN17_GA1[] = {\n@@ -922,6 +923,7 @@ static uint16_t qemu_MAX[] = {\n S390_FEAT_PRNO_TRNG,\n S390_FEAT_EXTENDED_LENGTH_SCCB,\n S390_FEAT_CERT_STORE,\n+ S390_FEAT_SIPL,\n };\n \n /****** END FEATURE DEFS ******/\ndiff --git a/target/s390x/kvm/kvm.c b/target/s390x/kvm/kvm.c\nindex cba431688b..40197cca7a 100644\n--- a/target/s390x/kvm/kvm.c\n+++ b/target/s390x/kvm/kvm.c\n@@ -2518,6 +2518,9 @@ bool kvm_s390_get_host_cpu_model(S390CPUModel *model, Error **errp)\n \n set_bit(S390_FEAT_CERT_STORE, model->features);\n \n+ /* Some Secure IPL facilities are emulated by QEMU */\n+ set_bit(S390_FEAT_SIPL, model->features);\n+\n /* Test for Ultravisor features that influence secure guest behavior */\n query_uv_feat_guest(model->features);\n \n","prefixes":["v10","16/30"]}