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Walling" To: qemu-s390x@nongnu.org, qemu-devel@nongnu.org Date: Mon, 5 Feb 2018 15:57:20 -0500 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1517864246-11101-1-git-send-email-walling@linux.vnet.ibm.com> References: <1517864246-11101-1-git-send-email-walling@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18020521-0056-0000-0000-00000415F70B X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00008478; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000248; SDB=6.00985441; UDB=6.00500015; IPR=6.00764812; BA=6.00005812; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00019386; XFM=3.00000015; UTC=2018-02-05 21:01:38 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18020521-0057-0000-0000-0000084D6522 Message-Id: <1517864246-11101-7-git-send-email-walling@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2018-02-05_05:, , 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-1802050259 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.158.5 Subject: [Qemu-devel] [PATCH v5 06/12] 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, mihajlov@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 | 52 +++++++++++++++++++++++++++++++++++++++++++++++++ hw/s390x/ipl.h | 7 ++++++- pc-bios/s390-ccw/iplb.h | 4 +++- 3 files changed, 61 insertions(+), 2 deletions(-) diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c index 3e3c3b8..227dccb 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 +221,53 @@ 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: + case S390_IPL_TYPE_QEMU_SCSI: + flags = &iplb->qipl.boot_menu_flags; + timeout = &iplb->qipl.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_CMD_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 +322,9 @@ 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 68dcaf8..90c0ed3 100644 --- a/hw/s390x/ipl.h +++ b/hw/s390x/ipl.h @@ -58,8 +58,13 @@ typedef struct IplBlockQemuScsi IplBlockQemuScsi; #define DIAG308_FLAGS_LP_VALID 0x80 +#define BOOT_MENU_FLAG_CMD_OPTS 0x80 +#define BOOT_MENU_FLAG_ZIPL_OPTS 0x40 + struct QemuIplParameters { - uint8_t reserved1[4]; + uint8_t boot_menu_flags; + uint8_t reserved1; + uint16_t boot_menu_timeout; uint64_t netboot_start_addr; uint8_t reserved2[16]; } QEMU_PACKED; diff --git a/pc-bios/s390-ccw/iplb.h b/pc-bios/s390-ccw/iplb.h index 12f6e40..0bbc1ac 100644 --- a/pc-bios/s390-ccw/iplb.h +++ b/pc-bios/s390-ccw/iplb.h @@ -73,7 +73,9 @@ typedef struct IplParameterBlock IplParameterBlock; extern IplParameterBlock iplb __attribute__((__aligned__(PAGE_SIZE))); struct QemuIplParameters { - uint8_t reserved1[4]; + uint8_t boot_menu_flags; + uint8_t reserved1; + uint16_t boot_menu_timeout; uint64_t netboot_start_addr; uint8_t reserved2[16]; } __attribute__ ((packed));