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Violators will be prosecuted for from ; Tue, 23 Jan 2018 11:27:26 -0700 Received: from b03cxnp07028.gho.boulder.ibm.com (9.17.130.15) by e31.co.us.ibm.com (192.168.1.131) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Tue, 23 Jan 2018 11:27:23 -0700 Received: from b03ledav001.gho.boulder.ibm.com (b03ledav001.gho.boulder.ibm.com [9.17.130.232]) by b03cxnp07028.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w0NIRNEi11534678; Tue, 23 Jan 2018 11:27:23 -0700 Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EDA3F6E044; Tue, 23 Jan 2018 11:27:22 -0700 (MST) Received: from collin-ThinkPad-W541.pok.ibm.com (unknown [9.56.58.131]) by b03ledav001.gho.boulder.ibm.com (Postfix) with ESMTP id 3E8106E03A; Tue, 23 Jan 2018 11:27:22 -0700 (MST) From: "Collin L. Walling" To: qemu-s390x@nongnu.org, qemu-devel@nongnu.org Date: Tue, 23 Jan 2018 13:26:48 -0500 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1516732013-18272-1-git-send-email-walling@linux.vnet.ibm.com> References: <1516732013-18272-1-git-send-email-walling@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18012318-8235-0000-0000-00000CE9C437 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00008415; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000247; SDB=6.00979294; UDB=6.00496347; IPR=6.00758599; BA=6.00005792; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00019170; XFM=3.00000015; UTC=2018-01-23 18:27:25 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18012318-8236-0000-0000-00003F5FD06F Message-Id: <1516732013-18272-6-git-send-email-walling@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2018-01-23_06:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1801230252 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCH v4 05/10] s390-ccw: parse and set boot menu options X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: frankja@linux.vnet.ibm.com, thuth@redhat.com, cohuck@redhat.com, david@redhat.com, alifm@linux.vnet.ibm.com, borntraeger@de.ibm.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Set boot menu options for an s390 guest and store them in the iplb. These options are set via the QEMU command line option: -boot menu=on|off[,splash-time=X] or via the libvirt domain xml: Where X represents some positive integer representing milliseconds. Any value set for loadparm will override all boot menu options. If loadparm=PROMPT, then the menu will be enabled without a timeout. The absence of any boot options on the command line will flag to later use the zipl boot loader values. Signed-off-by: Collin L. Walling Reviewed-by: Janosch Frank Reviewed-by: Thomas Huth --- hw/s390x/ipl.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++++ hw/s390x/ipl.h | 11 ++++++++-- pc-bios/s390-ccw/iplb.h | 8 +++++-- 3 files changed, 70 insertions(+), 4 deletions(-) diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c index 0d06fc1..a1eb8fe 100644 --- a/hw/s390x/ipl.c +++ b/hw/s390x/ipl.c @@ -23,6 +23,8 @@ #include "hw/s390x/ebcdic.h" #include "ipl.h" #include "qemu/error-report.h" +#include "qemu/config-file.h" +#include "qemu/cutils.h" #define KERN_IMAGE_START 0x010000UL #define KERN_PARM_AREA 0x010480UL @@ -219,6 +221,56 @@ static Property s390_ipl_properties[] = { DEFINE_PROP_END_OF_LIST(), }; +static void s390_ipl_set_boot_menu(IplParameterBlock *iplb) +{ + QemuOptsList *plist = qemu_find_opts("boot-opts"); + QemuOpts *opts = QTAILQ_FIRST(&plist->head); + uint8_t *flags; + uint16_t *timeout; + const char *tmp; + unsigned long result = 0; + + switch (iplb->pbt) { + case S390_IPL_TYPE_CCW: + flags = &iplb->ccw.boot_menu_flags; + timeout = &iplb->ccw.boot_menu_timeout; + break; + case S390_IPL_TYPE_QEMU_SCSI: + flags = &iplb->scsi.boot_menu_flags; + timeout = &iplb->scsi.boot_menu_timeout; + break; + default: + error_report("boot menu is not supported for this device type."); + return; + } + + /* In the absence of -boot menu, use zipl parameters */ + if (!qemu_opt_get(opts, "menu")) { + *flags = BOOT_MENU_FLAG_ZIPL_OPTS; + } else if (boot_menu) { + *flags = BOOT_MENU_FLAG_BOOT_OPTS; + + tmp = qemu_opt_get(opts, "splash-time"); + + if (tmp && qemu_strtoul(tmp, NULL, 10, &result)) { + error_report("splash-time value is invalid, forcing it to 0."); + *timeout = 0; + return; + } + + result = (result + 500) / 1000; /* Round and convert to seconds */ + + if (result > 0xffff) { + error_report("splash-time value is greater than 65535000," + " forcing it to 65535000."); + *timeout = 0xffff; + return; + } + + *timeout = cpu_to_be16(result); + } +} + static bool s390_gen_initial_iplb(S390IPLState *ipl) { DeviceState *dev_st; @@ -273,6 +325,9 @@ static bool s390_gen_initial_iplb(S390IPLState *ipl) if (!s390_ipl_set_loadparm(ipl->iplb.loadparm)) { ipl->iplb.flags |= DIAG308_FLAGS_LP_VALID; } + + s390_ipl_set_boot_menu(&ipl->iplb); + return true; } diff --git a/hw/s390x/ipl.h b/hw/s390x/ipl.h index 8a705e0..48e82cf 100644 --- a/hw/s390x/ipl.h +++ b/hw/s390x/ipl.h @@ -15,9 +15,14 @@ #include "hw/qdev.h" #include "cpu.h" +#define BOOT_MENU_FLAG_BOOT_OPTS 0x80 +#define BOOT_MENU_FLAG_ZIPL_OPTS 0x40 + struct IplBlockCcw { uint64_t netboot_start_addr; - uint8_t reserved0[77]; + uint8_t reserved0[74]; + uint16_t boot_menu_timeout; + uint8_t boot_menu_flags; uint8_t ssid; uint16_t devno; uint8_t vm_flags; @@ -51,7 +56,9 @@ struct IplBlockQemuScsi { uint32_t lun; uint16_t target; uint16_t channel; - uint8_t reserved0[77]; + uint8_t reserved0[74]; + uint16_t boot_menu_timeout; + uint8_t boot_menu_flags; uint8_t ssid; uint16_t devno; } QEMU_PACKED; diff --git a/pc-bios/s390-ccw/iplb.h b/pc-bios/s390-ccw/iplb.h index 890aed9..fe909d2 100644 --- a/pc-bios/s390-ccw/iplb.h +++ b/pc-bios/s390-ccw/iplb.h @@ -14,7 +14,9 @@ struct IplBlockCcw { uint64_t netboot_start_addr; - uint8_t reserved0[77]; + uint8_t reserved0[74]; + uint16_t boot_menu_timeout; + uint8_t boot_menu_flags; uint8_t ssid; uint16_t devno; uint8_t vm_flags; @@ -48,7 +50,9 @@ struct IplBlockQemuScsi { uint32_t lun; uint16_t target; uint16_t channel; - uint8_t reserved0[77]; + uint8_t reserved0[74]; + uint16_t boot_menu_timeout; + uint8_t boot_menu_flags; uint8_t ssid; uint16_t devno; } __attribute__ ((packed));