{"id":2233190,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2233190/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260505201905.997996-21-zycai@linux.ibm.com/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.2/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":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260505201905.997996-21-zycai@linux.ibm.com>","list_archive_url":null,"date":"2026-05-05T20:18:52","name":"[v11,20/32] pc-bios/s390-ccw: Introduce ZiplBootMode enum for IPL mode selection","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"c6e52e090d54bff87174ff3375acfbc28468034a","submitter":{"id":90643,"url":"http://patchwork.ozlabs.org/api/1.2/people/90643/?format=json","name":"Zhuoying Cai","email":"zycai@linux.ibm.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260505201905.997996-21-zycai@linux.ibm.com/mbox/","series":[{"id":502896,"url":"http://patchwork.ozlabs.org/api/1.2/series/502896/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=502896","date":"2026-05-05T20:18:37","name":"Secure IPL Support for SCSI Scheme of virtio-blk/virtio-scsi Devices","version":11,"mbox":"http://patchwork.ozlabs.org/series/502896/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2233190/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2233190/checks/","tags":{},"related":[],"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=AcqQBuhC;\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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envelope-from=zycai@linux.ibm.com;\n 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,\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, SPF_HELO_NONE=0.001,\n 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":"Add ZiplBootMode enumeration to support multiple IPL boot configurations.\nBoot modes differentiate between normal boot and secure IPL operations,\nenabled based on boot certificates specified via the boot-certs option.\n\nNormal Mode: IPL when no certificates are provided. No signature\nverification is performed.\n\nThis prepares for future secure IPL modes requiring signature\nverification.\n\nSigned-off-by: Zhuoying Cai \n---\n docs/system/s390x/secure-ipl.rst | 21 +++++++++++++++++++++\n pc-bios/s390-ccw/bootmap.c | 16 +++++++++++++++-\n pc-bios/s390-ccw/main.c | 6 ++++++\n pc-bios/s390-ccw/s390-ccw.h | 6 ++++++\n 4 files changed, 48 insertions(+), 1 deletion(-)","diff":"diff --git a/docs/system/s390x/secure-ipl.rst b/docs/system/s390x/secure-ipl.rst\nindex 88df52ce2f..9d7d33f5ed 100644\n--- a/docs/system/s390x/secure-ipl.rst\n+++ b/docs/system/s390x/secure-ipl.rst\n@@ -18,3 +18,24 @@ Note: certificate files must have a .pem extension.\n .. code-block:: shell\n \n qemu-system-s390x -machine s390-ccw-virtio,boot-certs.0.path=/.../qemu/certs,boot-certs.1.path=/another/path/cert.pem ...\n+\n+\n+IPL Modes\n+---------\n+\n+Multiple IPL modes are available to differentiate between the various IPL\n+configurations. These modes are mutually exclusive and enabled based on the\n+``boot-certs`` option on the QEMU command line.\n+\n+Normal Mode\n+^^^^^^^^^^^\n+\n+The absence of certificates will attempt to IPL a guest without secure IPL\n+operations. No checks are performed, and no warnings/errors are reported.\n+This is the default mode.\n+\n+Configuration:\n+\n+.. code-block:: shell\n+\n+ qemu-system-s390x -machine s390-ccw-virtio ...\ndiff --git a/pc-bios/s390-ccw/bootmap.c b/pc-bios/s390-ccw/bootmap.c\nindex b19981feb1..667a69f80d 100644\n--- a/pc-bios/s390-ccw/bootmap.c\n+++ b/pc-bios/s390-ccw/bootmap.c\n@@ -733,7 +733,14 @@ static int zipl_run(ScsiBlockPtr *pte)\n /* Load image(s) into RAM */\n entry = (ComponentEntry *)(&header[1]);\n \n- rc = zipl_run_normal(&entry, tmp_sec);\n+ switch (boot_mode) {\n+ case ZIPL_BOOT_MODE_NORMAL:\n+ rc = zipl_run_normal(&entry, tmp_sec);\n+ break;\n+ default:\n+ panic(\"Unknown boot mode\");\n+ }\n+\n if (rc) {\n return rc;\n }\n@@ -1105,12 +1112,16 @@ void zipl_load(void)\n VDev *vdev = virtio_get_device();\n \n if (vdev->is_cdrom) {\n+ IPL_assert((boot_mode == ZIPL_BOOT_MODE_NORMAL),\n+ \"Secure boot from ISO image is not supported!\");\n ipl_iso_el_torito();\n puts(\"Failed to IPL this ISO image!\");\n return;\n }\n \n if (virtio_get_device_type() == VIRTIO_ID_NET) {\n+ IPL_assert((boot_mode == ZIPL_BOOT_MODE_NORMAL),\n+ \"Virtio net boot device does not support secure boot!\");\n netmain();\n puts(\"Failed to IPL from this network!\");\n return;\n@@ -1121,6 +1132,9 @@ void zipl_load(void)\n return;\n }\n \n+ IPL_assert((boot_mode == ZIPL_BOOT_MODE_NORMAL),\n+ \"Secure boot with the ECKD scheme is not supported!\");\n+\n switch (virtio_get_device_type()) {\n case VIRTIO_ID_BLOCK:\n zipl_load_vblk();\ndiff --git a/pc-bios/s390-ccw/main.c b/pc-bios/s390-ccw/main.c\nindex e6d4105786..66544f75f5 100644\n--- a/pc-bios/s390-ccw/main.c\n+++ b/pc-bios/s390-ccw/main.c\n@@ -30,6 +30,7 @@ IplParameterBlock *iplb;\n bool have_iplb;\n static uint16_t cutype;\n LowCore *lowcore; /* Yes, this *is* a pointer to address 0 */\n+ZiplBootMode boot_mode;\n \n #define LOADPARM_PROMPT \"PROMPT \"\n #define LOADPARM_EMPTY \" \"\n@@ -303,6 +304,9 @@ static void ipl_ccw_device(void)\n switch (cutype) {\n case CU_TYPE_DASD_3990:\n case CU_TYPE_DASD_2107:\n+ IPL_assert((boot_mode == ZIPL_BOOT_MODE_NORMAL),\n+ \"Passthrough (vfio) CCW device does not support secure boot!\");\n+\n dasd_ipl(blk_schid, cutype);\n break;\n case CU_TYPE_VIRTIO:\n@@ -390,6 +394,8 @@ void main(void)\n probe_boot_device();\n }\n \n+ boot_mode = ZIPL_BOOT_MODE_NORMAL;\n+\n while (have_iplb) {\n boot_setup();\n if (have_iplb && find_boot_device()) {\ndiff --git a/pc-bios/s390-ccw/s390-ccw.h b/pc-bios/s390-ccw/s390-ccw.h\nindex 1e1f71775e..5420443ad2 100644\n--- a/pc-bios/s390-ccw/s390-ccw.h\n+++ b/pc-bios/s390-ccw/s390-ccw.h\n@@ -69,6 +69,12 @@ int sclp_read(char *str, size_t count);\n /* bootmap.c */\n void zipl_load(void);\n \n+typedef enum ZiplBootMode {\n+ ZIPL_BOOT_MODE_NORMAL = 0,\n+} ZiplBootMode;\n+\n+extern ZiplBootMode boot_mode;\n+\n /* jump2ipl.c */\n void write_reset_psw(uint64_t psw);\n int jump_to_IPL_code(uint64_t address);\n","prefixes":["v11","20/32"]}