diff options
| -rw-r--r-- | hw/s390x/ipl.c | 24 | ||||
| -rw-r--r-- | pc-bios/s390-ccw/Makefile | 11 |
2 files changed, 27 insertions, 8 deletions
diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c index b57adbd99e..d6c0a49071 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; diff --git a/pc-bios/s390-ccw/Makefile b/pc-bios/s390-ccw/Makefile index ad55a14a14..009bb8de1c 100644 --- a/pc-bios/s390-ccw/Makefile +++ b/pc-bios/s390-ccw/Makefile @@ -9,10 +9,9 @@ $(call set-vpath, $(SRC_PATH)/pc-bios/s390-ccw) .PHONY : all clean build-all -OBJECTS=main.o bootmap.o sclp-ascii.o virtio.o start.o -CFLAGS += -fno-stack-protector -# XXX find a more clever to locate the bootloader -LDFLAGS += -Wl,-Ttext,0x7e00000,-Tbss,0x7f00000 -nostdlib +OBJECTS = start.o main.o bootmap.o sclp-ascii.o virtio.o +CFLAGS += -fPIE -fno-stack-protector -ffreestanding +LDFLAGS += -Wl,-pie -nostdlib build-all: s390-ccw.img @@ -20,7 +19,9 @@ s390-ccw.elf: $(OBJECTS) $(call quiet-command,$(CC) $(LDFLAGS) -o $@ $(OBJECTS)," Building $(TARGET_DIR)$@") s390-ccw.img: s390-ccw.elf - $(call quiet-command,strip $< -o $@," Stripping $(TARGET_DIR)$@") + $(call quiet-command,strip --strip-unneeded $< -o $@," Stripping $(TARGET_DIR)$@") + +$(OBJECTS): Makefile clean: rm -f *.o *.d *.img *.elf *~ |