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GET /api/patches/2196101/?format=api
{ "id": 2196101, "url": "http://patchwork.ozlabs.org/api/patches/2196101/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260212204352.1044699-17-zycai@linux.ibm.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "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": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260212204352.1044699-17-zycai@linux.ibm.com>", "list_archive_url": null, "date": "2026-02-12T20:43:37", "name": "[v8,16/30] 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/people/90643/?format=api", "name": "Zhuoying Cai", "email": "zycai@linux.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260212204352.1044699-17-zycai@linux.ibm.com/mbox/", "series": [ { "id": 492021, "url": "http://patchwork.ozlabs.org/api/series/492021/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=492021", "date": "2026-02-12T20:43:36", "name": "Secure IPL Support for SCSI Scheme of virtio-blk/virtio-scsi Devices", "version": 8, "mbox": "http://patchwork.ozlabs.org/series/492021/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2196101/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2196101/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "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=JNIDaKDP;\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=VcXg+pSpQNFOM/Iyf\n wDzRYewf8TiEzKlQsE2ojvuEkw=; b=JNIDaKDPZG+iNiQAP1EFyyRH3FJPjo0p5\n 3wabAu8CUThbSeWJdua0HwSMQ/A2jscqfpUjhyC6cpA8DcLI2302yN4EU3xL+Vaa\n 5fW5+96w3r5FAvF85Tf3gmJlotEN9NCmFywE3rfLAOG5xHFU+j1UzVEAkehuDovO\n klTXUCSrL79Uy5eTP2ZILqPV6yEGx2G1OuN9L6tdsfZQ92IjqVvvzEiF61yOAP1d\n gSTVNSggzYfe+N4nud2fae098s/fKxeERtRccZpSKL1AtL7eyZuLM2uTma5ikXsl\n DC8LlujgDSM9IDTHn+gr3G3zPhCe5mprMC5Xw3ysEaggt3UZdjlYw==", "From": "Zhuoying Cai <zycai@linux.ibm.com>", "To": "thuth@redhat.com, berrange@redhat.com, richard.henderson@linaro.org,\n jrossi@linux.ibm.com, qemu-s390x@nongnu.org, qemu-devel@nongnu.org", "Cc": "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", "Subject": "[PATCH v8 16/30] s390x: Guest support for Secure-IPL Facility", "Date": "Thu, 12 Feb 2026 15:43:37 -0500", "Message-ID": "<20260212204352.1044699-17-zycai@linux.ibm.com>", "X-Mailer": "git-send-email 2.52.0", "In-Reply-To": "<20260212204352.1044699-1-zycai@linux.ibm.com>", "References": "<20260212204352.1044699-1-zycai@linux.ibm.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-TM-AS-GCONF": "00", "X-Authority-Analysis": "v=2.4 cv=YZiwJgRf c=1 sm=1 tr=0 ts=698e3bad cx=c_pps\n a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17\n a=HzLeVaNsDn8A:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22\n a=GgsMoib0sEa3-_RKJdDe:22 a=VnNF1IyMAAAA:8 a=Bichc5AjJS213ZhIJUEA:9", "X-Proofpoint-ORIG-GUID": "4BuOZlmT4iTHrtuzZnZgLdC1SkGC7bPZ", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwMjEyMDE1NyBTYWx0ZWRfX30HhfJj5u1K3\n tBgY/Kh0hPZCtwgCu6kENwmstndt0Yd6fUntWzucK5XDHtlReVwHH8kF1iFNvjkG0g4GOhsa4Pr\n apEZiIlWjIw7ha+yD89ZJd/m77SunBKSVHdh3nW1wjy3+WvwigiILWSjPVacLttMHDzjMbXzcjg\n LW7HxqFPWVZG9/2JX9IiqFN8dVrV+t/1oltrXntydzf+iQCy3qbuzlAOCt9+LBRlsPkQUph4hu7\n 0mcJT0f5/ZiNu3xbv540+qUzo9h1tE7Eb9euaZKKmORt02308cqLLPZfC1GqtQHrMcGIkyN9XdV\n lJwo8HqA2lqo4KSM8XGJ8XK2503TgUxhBjbGr5hozkgtVDJ/weMD4LIdMxef83AFg/g7YegYvga\n m/VbneYyYn3yTDZ+Q7vQZt9oBJIXJWeaSaDbODCD/L4hX0IE9fcZsA+59gW2+dPxpZu1mlTThFy\n U3XnKMb64vQZypsp8ug==", "X-Proofpoint-GUID": "4BuOZlmT4iTHrtuzZnZgLdC1SkGC7bPZ", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-02-12_05,2026-02-12_03,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n priorityscore=1501 spamscore=0 impostorscore=0 suspectscore=0 malwarescore=0\n phishscore=0 bulkscore=0 adultscore=0 clxscore=1015 lowpriorityscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602120157", "Received-SPF": "pass client-ip=148.163.156.1; envelope-from=zycai@linux.ibm.com;\n helo=mx0a-001b2d01.pphosted.com", "X-Spam_score_int": "-19", "X-Spam_score": "-2.0", "X-Spam_bar": "--", "X-Spam_report": "(-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001,\n RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_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 <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "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 <zycai@linux.ibm.com>\nReviewed-by: Collin Walling <walling@linux.ibm.com>\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 6b8471700e..f99536ef9a 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 e06b760e03..11b0740c1b 100644\n--- a/target/s390x/kvm/kvm.c\n+++ b/target/s390x/kvm/kvm.c\n@@ -2520,6 +2520,9 @@ 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": [ "v8", "16/30" ] }