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Merge remote-tracking branch 'afaerber-or/prep-up' into staging

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# By Andreas Färber (1) and others
# Via Andreas Färber
* afaerber-or/prep-up:
  prep: Make System I/O port 0092 read/write
  prep: Add ELF support for -bios
  prep: Fix NIP reset value
This commit is contained in:
Anthony Liguori 2013-05-06 06:49:51 -05:00
commit e4b006b7a5
1 changed files with 26 additions and 10 deletions
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36
hw/ppc/prep.c
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@ -40,7 +40,9 @@
#include "hw/isa/pc87312.h"
#include "sysemu/blockdev.h"
#include "sysemu/arch_init.h"
#include "sysemu/qtest.h"
#include "exec/address-spaces.h"
#include "elf.h"
//#define HARD_DEBUG_PPC_IO
//#define DEBUG_PPC_IO
@ -267,7 +269,7 @@ static uint32_t PREP_io_800_readb (void *opaque, uint32_t addr)
switch (addr) {
case 0x0092:
/* Special port 92 */
retval = 0x00;
retval = sysctrl->endian << 1;
break;
case 0x0800:
/* Motorola CPU configuration register */
@ -427,6 +429,9 @@ static void ppc_prep_reset(void *opaque)
PowerPCCPU *cpu = opaque;
cpu_reset(CPU(cpu));
/* Reset address */
cpu->env.nip = 0xfffffffc;
}
/* PowerPC PREP hardware initialisation */
@ -502,18 +507,29 @@ static void ppc_prep_init(QEMUMachineInitArgs *args)
bios_name = BIOS_FILENAME;
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
if (filename) {
bios_size = get_image_size(filename);
bios_size = load_elf(filename, NULL, NULL, NULL,
NULL, NULL, 1, ELF_MACHINE, 0);
if (bios_size < 0) {
bios_size = get_image_size(filename);
if (bios_size > 0 && bios_size <= BIOS_SIZE) {
hwaddr bios_addr;
bios_size = (bios_size + 0xfff) & ~0xfff;
bios_addr = (uint32_t)(-bios_size);
bios_size = load_image_targphys(filename, bios_addr, bios_size);
}
if (bios_size > BIOS_SIZE) {
fprintf(stderr, "qemu: PReP bios '%s' is too large (0x%x)\n",
bios_name, bios_size);
exit(1);
}
}
} else {
bios_size = -1;
}
if (bios_size > 0 && bios_size <= BIOS_SIZE) {
hwaddr bios_addr;
bios_size = (bios_size + 0xfff) & ~0xfff;
bios_addr = (uint32_t)(-bios_size);
bios_size = load_image_targphys(filename, bios_addr, bios_size);
}
if (bios_size < 0 || bios_size > BIOS_SIZE) {
hw_error("qemu: could not load PPC PREP bios '%s'\n", bios_name);
if (bios_size < 0 && !qtest_enabled()) {
fprintf(stderr, "qemu: could not load PPC PReP bios '%s'\n",
bios_name);
exit(1);
}
if (filename) {
g_free(filename);