#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
#define INITRD_PARM_START 0x010408UL
#define INITRD_PARM_SIZE 0x010410UL
#define PARMFILE_START 0x001000UL
-#define ZIPL_FILENAME "s390-zipl.rom"
#define ZIPL_IMAGE_START 0x009000UL
#define IPL_PSW_MASK (PSW_MASK_32 | PSW_MASK_64)
typedef struct S390IPLState {
/*< private >*/
SysBusDevice parent_obj;
- /*< public >*/
+ uint64_t start_addr;
+ /*< public >*/
char *kernel;
char *initrd;
char *cmdline;
+ char *firmware;
} S390IPLState;
-static void s390_ipl_cpu(uint64_t pswaddr)
-{
- CPUS390XState *env = &S390_CPU(qemu_get_cpu(0))->env;
- env->psw.addr = pswaddr;
- env->psw.mask = IPL_PSW_MASK;
- s390_add_running_cpu(env);
-}
-
static int s390_ipl_init(SysBusDevice *dev)
{
S390IPLState *ipl = S390_IPL(dev);
- ram_addr_t kernel_size = 0;
+ int kernel_size;
if (!ipl->kernel) {
- ram_addr_t bios_size = 0;
+ int bios_size;
char *bios_filename;
/* Load zipl bootloader */
if (bios_name == NULL) {
- bios_name = ZIPL_FILENAME;
+ bios_name = ipl->firmware;
}
bios_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
- bios_size = load_image_targphys(bios_filename, ZIPL_IMAGE_START, 4096);
- g_free(bios_filename);
+ if (bios_filename == NULL) {
+ hw_error("could not find stage1 bootloader\n");
+ }
- if ((long)bios_size < 0) {
- hw_error("could not load bootloader '%s'\n", bios_name);
+ bios_size = load_elf(bios_filename, NULL, NULL, &ipl->start_addr, NULL,
+ NULL, 1, ELF_MACHINE, 0);
+ if (bios_size == -1) {
+ bios_size = load_image_targphys(bios_filename, ZIPL_IMAGE_START,
+ 4096);
+ ipl->start_addr = ZIPL_IMAGE_START;
+ if (bios_size > 4096) {
+ hw_error("stage1 bootloader is > 4k\n");
+ }
}
+ g_free(bios_filename);
- if (bios_size > 4096) {
- hw_error("stage1 bootloader is > 4k\n");
+ if (bios_size == -1) {
+ hw_error("could not load bootloader '%s'\n", bios_name);
}
return 0;
} else {
kernel_size = load_elf(ipl->kernel, NULL, NULL, NULL, NULL,
NULL, 1, ELF_MACHINE, 0);
- if (kernel_size == -1UL) {
+ if (kernel_size == -1) {
kernel_size = load_image_targphys(ipl->kernel, 0, ram_size);
}
- if (kernel_size == -1UL) {
+ if (kernel_size == -1) {
fprintf(stderr, "could not load kernel '%s'\n", ipl->kernel);
return -1;
}
/* we have to overwrite values in the kernel image, which are "rom" */
strcpy(rom_ptr(KERN_PARM_AREA), ipl->cmdline);
+
+ /*
+ * we can not rely on the ELF entry point, since up to 3.2 this
+ * value was 0x800 (the SALIPL loader) and it wont work. For
+ * all (Linux) cases 0x10000 (KERN_IMAGE_START) should be fine.
+ */
+ ipl->start_addr = KERN_IMAGE_START;
}
if (ipl->initrd) {
- ram_addr_t initrd_offset, initrd_size;
+ ram_addr_t initrd_offset;
+ int initrd_size;
initrd_offset = INITRD_START;
while (kernel_size + 0x100000 > initrd_offset) {
}
initrd_size = load_image_targphys(ipl->initrd, initrd_offset,
ram_size - initrd_offset);
- if (initrd_size == -1UL) {
+ if (initrd_size == -1) {
fprintf(stderr, "qemu: could not load initrd '%s'\n", ipl->initrd);
exit(1);
}
DEFINE_PROP_STRING("kernel", S390IPLState, kernel),
DEFINE_PROP_STRING("initrd", S390IPLState, initrd),
DEFINE_PROP_STRING("cmdline", S390IPLState, cmdline),
+ DEFINE_PROP_STRING("firmware", S390IPLState, firmware),
DEFINE_PROP_END_OF_LIST(),
};
static void s390_ipl_reset(DeviceState *dev)
{
S390IPLState *ipl = S390_IPL(dev);
+ S390CPU *cpu = S390_CPU(qemu_get_cpu(0));
+ CPUS390XState *env = &cpu->env;
- if (ipl->kernel) {
- /*
- * we can not rely on the ELF entry point, since up to 3.2 this
- * value was 0x800 (the SALIPL loader) and it wont work. For
- * all (Linux) cases 0x10000 (KERN_IMAGE_START) should be fine.
- */
- return s390_ipl_cpu(KERN_IMAGE_START);
- } else {
- return s390_ipl_cpu(ZIPL_IMAGE_START);
+ env->psw.addr = ipl->start_addr;
+ env->psw.mask = IPL_PSW_MASK;
+
+ if (!ipl->kernel) {
+ /* Tell firmware, if there is a preferred boot device */
+ env->regs[7] = -1;
+ DeviceState *dev_st = get_boot_device(0);
+ if (dev_st) {
+ VirtioCcwDevice *ccw_dev = (VirtioCcwDevice *) object_dynamic_cast(
+ OBJECT(qdev_get_parent_bus(dev_st)->parent),
+ TYPE_VIRTIO_CCW_DEVICE);
+
+ if (ccw_dev) {
+ env->regs[7] = ccw_dev->sch->cssid << 24 |
+ ccw_dev->sch->ssid << 16 |
+ ccw_dev->sch->devno;
+ }
+ }
}
+
+ s390_add_running_cpu(cpu);
}
static void s390_ipl_class_init(ObjectClass *klass, void *data)
k->init = s390_ipl_init;
dc->props = s390_ipl_properties;
dc->reset = s390_ipl_reset;
- dc->no_user = 1;
}
static const TypeInfo s390_ipl_info = {
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