diff options
Diffstat (limited to 'hw/s390x/ipl.c')
| -rw-r--r-- | hw/s390x/ipl.c | 38 |
1 files changed, 27 insertions, 11 deletions
diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c index ace5ff5..0aeb003 100644 --- a/hw/s390x/ipl.c +++ b/hw/s390x/ipl.c @@ -16,6 +16,8 @@ #include "elf.h" #include "hw/loader.h" #include "hw/sysbus.h" +#include "hw/s390x/virtio-ccw.h" +#include "hw/s390x/css.h" #define KERN_IMAGE_START 0x010000UL #define KERN_PARM_AREA 0x010480UL @@ -57,16 +59,6 @@ typedef struct S390IPLState { } S390IPLState; -static void s390_ipl_cpu(uint64_t pswaddr) -{ - S390CPU *cpu = S390_CPU(qemu_get_cpu(0)); - CPUS390XState *env = &cpu->env; - - env->psw.addr = pswaddr; - env->psw.mask = IPL_PSW_MASK; - s390_add_running_cpu(cpu); -} - static int s390_ipl_init(SysBusDevice *dev) { S390IPLState *ipl = S390_IPL(dev); @@ -82,6 +74,10 @@ static int s390_ipl_init(SysBusDevice *dev) } bios_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); + if (bios_filename == NULL) { + hw_error("could not find stage1 bootloader\n"); + } + bios_size = load_elf(bios_filename, NULL, NULL, &ipl->start_addr, NULL, NULL, 1, ELF_MACHINE, 0); if (bios_size == -1UL) { @@ -151,8 +147,28 @@ static Property s390_ipl_properties[] = { static void s390_ipl_reset(DeviceState *dev) { S390IPLState *ipl = S390_IPL(dev); + S390CPU *cpu = S390_CPU(qemu_get_cpu(0)); + CPUS390XState *env = &cpu->env; - s390_ipl_cpu(ipl->start_addr); + env->psw.addr = ipl->start_addr; + env->psw.mask = IPL_PSW_MASK; + + if (!ipl->kernel) { + /* booting firmware, tell what device to boot from */ + DeviceState *dev_st = get_boot_device(0); + VirtioCcwDevice *ccw_dev = (VirtioCcwDevice *) object_dynamic_cast( + OBJECT(&(dev_st->parent_obj)), "virtio-blk-ccw"); + + if (ccw_dev) { + env->regs[7] = ccw_dev->sch->cssid << 24 | + ccw_dev->sch->ssid << 16 | + ccw_dev->sch->devno; + } else { + env->regs[7] = -1; + } + } + + s390_add_running_cpu(cpu); } static void s390_ipl_class_init(ObjectClass *klass, void *data) |