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load_elf: replace the address addend by a translation function

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A few machines need to translate the ELF header addresses into physical
addresses. Currently the only possibility is to add a value to the
addresses.

This patch replaces the addend argument by and a translation function
and an opaque passed to the function. A NULL function does not translate
the address.

The patch also convert all machines that have an addend, simplify the
PowerPC kernel loading and fix the MIPS kernel loading using this new
feature. Other machines may benefit from this feature.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2010-03-14 21:20:59 +01:00
parent cb66ffcf9e
commit 409dbce54b
24 changed files with 159 additions and 101 deletions
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14
hw/sun4u.c
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@ -189,8 +189,8 @@ static unsigned long sun4u_load_kernel(const char *kernel_filename,
#else
bswap_needed = 0;
#endif
kernel_size = load_elf(kernel_filename, 0, NULL, NULL, NULL,
1, ELF_MACHINE, 0);
kernel_size = load_elf(kernel_filename, NULL, NULL, NULL,
NULL, NULL, 1, ELF_MACHINE, 0);
if (kernel_size < 0)
kernel_size = load_aout(kernel_filename, KERNEL_LOAD_ADDR,
RAM_size - KERNEL_LOAD_ADDR, bswap_needed,
@ -580,6 +580,12 @@ static void pci_ebus_register(void)
device_init(pci_ebus_register);
static uint64_t translate_prom_address(void *opaque, uint64_t addr)
{
target_phys_addr_t *base_addr = (target_phys_addr_t *)opaque;
return addr + *base_addr - PROM_VADDR;
}
/* Boot PROM (OpenBIOS) */
static void prom_init(target_phys_addr_t addr, const char *bios_name)
{
@ -600,8 +606,8 @@ static void prom_init(target_phys_addr_t addr, const char *bios_name)
}
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
if (filename) {
ret = load_elf(filename, addr - PROM_VADDR, NULL, NULL, NULL,
1, ELF_MACHINE, 0);
ret = load_elf(filename, translate_prom_address, &addr,
NULL, NULL, NULL, 1, ELF_MACHINE, 0);
if (ret < 0 || ret > PROM_SIZE_MAX) {
ret = load_image_targphys(filename, addr, PROM_SIZE_MAX);
}