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Violators will be prosecuted for from ; Thu, 15 Feb 2018 15:55:06 -0700 From: "Collin L. Walling" Date: Thu, 15 Feb 2018 17:54:27 -0500 In-Reply-To: <1518735273-16089-1-git-send-email-walling@linux.vnet.ibm.com> References: <1518735273-16089-1-git-send-email-walling@linux.vnet.ibm.com> Message-Id: <1518735273-16089-7-git-send-email-walling@linux.vnet.ibm.com> Subject: [Qemu-devel] [PATCH v6 06/12] s390-ccw: parse and set boot menu options List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-s390x@nongnu.org, qemu-devel@nongnu.org Cc: borntraeger@de.ibm.com, frankja@linux.vnet.ibm.com, cohuck@redhat.com, thuth@redhat.com, david@redhat.com, alifm@linux.vnet.ibm.com, eblake@redhat.com, mihajlov@linux.vnet.ibm.com 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 | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ hw/s390x/ipl.h | 9 +++++++-- pc-bios/s390-ccw/iplb.h | 6 ++++-- 3 files changed, 59 insertions(+), 4 deletions(-) diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c index 31565ce..c8109f5 100644 --- a/hw/s390x/ipl.c +++ b/hw/s390x/ipl.c @@ -23,6 +23,9 @@ #include "hw/s390x/ebcdic.h" #include "ipl.h" #include "qemu/error-report.h" +#include "qemu/config-file.h" +#include "qemu/cutils.h" +#include "qemu/option.h" #define KERN_IMAGE_START 0x010000UL #define KERN_PARM_AREA 0x010480UL @@ -219,6 +222,50 @@ 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; + uint32_t *timeout; + const char *tmp; + unsigned long splash_time = 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, &splash_time)) { + error_report("splash-time is invalid, forcing it to 0."); + splash_time = 0; + return; + } + + if (splash_time > 0xffffffff) { + error_report("splash-time is too large, forcing it to max value."); + splash_time = 0xffffffff; + return; + } + + *timeout = cpu_to_be32(splash_time); + } +} + static bool s390_gen_initial_iplb(S390IPLState *ipl) { DeviceState *dev_st; @@ -435,6 +482,7 @@ void s390_ipl_prepare_cpu(S390CPU *cpu) } ipl->iplb.qipl.netboot_start_addr = cpu_to_be64(ipl->start_addr); } + s390_ipl_set_boot_menu(&ipl->iplb); s390_ipl_prepare_qipl(cpu); } diff --git a/hw/s390x/ipl.h b/hw/s390x/ipl.h index cab8a97..7c3cab8 100644 --- a/hw/s390x/ipl.h +++ b/hw/s390x/ipl.h @@ -60,10 +60,15 @@ typedef struct IplBlockQemuScsi IplBlockQemuScsi; #define QIPL_ADDRESS 0xcc +#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; + uint32_t boot_menu_timeout; uint64_t netboot_start_addr; - uint8_t reserved2[16]; + uint8_t reserved2[14]; } QEMU_PACKED; typedef struct QemuIplParameters QemuIplParameters; diff --git a/pc-bios/s390-ccw/iplb.h b/pc-bios/s390-ccw/iplb.h index 1266884..e8e442d 100644 --- a/pc-bios/s390-ccw/iplb.h +++ b/pc-bios/s390-ccw/iplb.h @@ -75,9 +75,11 @@ extern IplParameterBlock iplb __attribute__((__aligned__(PAGE_SIZE))); #define QIPL_ADDRESS 0xcc struct QemuIplParameters { - uint8_t reserved1[4]; + uint8_t boot_menu_flags; + uint8_t reserved1; + uint32_t boot_menu_timeout; uint64_t netboot_start_addr; - uint8_t reserved2[16]; + uint8_t reserved2[14]; } __attribute__ ((packed)); typedef struct QemuIplParameters QemuIplParameters; -- 2.7.4