diff options
Diffstat (limited to 'hw/s390x/ipl.c')
| -rw-r--r-- | hw/s390x/ipl.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c index b57adbd..d6c0a49 100644 --- a/hw/s390x/ipl.c +++ b/hw/s390x/ipl.c @@ -14,6 +14,7 @@ #include "sysemu/sysemu.h" #include "cpu.h" #include "elf.h" +#include "exec/ram_addr.h" #include "hw/loader.h" #include "hw/sysbus.h" #include "hw/s390x/virtio-ccw.h" @@ -95,6 +96,16 @@ static const VMStateDescription vmstate_ipl = { } }; +static uint64_t bios_translate_addr(void *opaque, uint64_t srcaddr) +{ + uint64_t dstaddr = *(uint64_t *) opaque; + /* + * Assuming that our s390-ccw.img was linked for starting at address 0, + * we can simply add the destination address for the final location + */ + return srcaddr + dstaddr; +} + static int s390_ipl_init(SysBusDevice *dev) { S390IPLState *ipl = S390_IPL(dev); @@ -109,6 +120,8 @@ static int s390_ipl_init(SysBusDevice *dev) * even if an external kernel has been defined. */ if (!ipl->kernel || ipl->enforce_bios) { + uint64_t fwbase = (MIN(ram_size, 0x80000000U) - 0x200000) & ~0xffffUL; + if (bios_name == NULL) { bios_name = ipl->firmware; } @@ -118,9 +131,14 @@ static int s390_ipl_init(SysBusDevice *dev) hw_error("could not find stage1 bootloader\n"); } - bios_size = load_elf(bios_filename, NULL, NULL, &ipl->bios_start_addr, - NULL, NULL, 1, ELF_MACHINE, 0); - if (bios_size < 0) { + bios_size = load_elf(bios_filename, bios_translate_addr, &fwbase, + &ipl->bios_start_addr, NULL, NULL, 1, + ELF_MACHINE, 0); + if (bios_size > 0) { + /* Adjust ELF start address to final location */ + ipl->bios_start_addr += fwbase; + } else { + /* Try to load non-ELF file (e.g. s390-zipl.rom) */ bios_size = load_image_targphys(bios_filename, ZIPL_IMAGE_START, 4096); ipl->bios_start_addr = ZIPL_IMAGE_START; |
