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Sparc64: refactor kernel init

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Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Blue Swirl 2009-07-21 10:49:47 +00:00
parent 7b833f5b21
commit 636aa70ade
1 changed files with 55 additions and 42 deletions
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97
hw/sun4u.c
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@ -148,6 +148,56 @@ static int sun4u_NVRAM_set_params (m48t59_t *nvram, uint16_t NVRAM_size,
return 0; return 0;
} }
static unsigned long sun4u_load_kernel(const char *kernel_filename,
const char *initrd_filename,
ram_addr_t RAM_size, long *initrd_size)
{
int linux_boot;
unsigned int i;
long kernel_size;
linux_boot = (kernel_filename != NULL);
kernel_size = 0;
if (linux_boot) {
kernel_size = load_elf(kernel_filename, 0, NULL, NULL, NULL);
if (kernel_size < 0)
kernel_size = load_aout(kernel_filename, KERNEL_LOAD_ADDR,
RAM_size - KERNEL_LOAD_ADDR);
if (kernel_size < 0)
kernel_size = load_image_targphys(kernel_filename,
KERNEL_LOAD_ADDR,
RAM_size - KERNEL_LOAD_ADDR);
if (kernel_size < 0) {
fprintf(stderr, "qemu: could not load kernel '%s'\n",
kernel_filename);
exit(1);
}
/* load initrd */
*initrd_size = 0;
if (initrd_filename) {
*initrd_size = load_image_targphys(initrd_filename,
INITRD_LOAD_ADDR,
RAM_size - INITRD_LOAD_ADDR);
if (*initrd_size < 0) {
fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
initrd_filename);
exit(1);
}
}
if (*initrd_size > 0) {
for (i = 0; i < 64 * TARGET_PAGE_SIZE; i += TARGET_PAGE_SIZE) {
if (ldl_phys(KERNEL_LOAD_ADDR + i) == 0x48647253) { // HdrS
stl_phys(KERNEL_LOAD_ADDR + i + 16, INITRD_LOAD_ADDR);
stl_phys(KERNEL_LOAD_ADDR + i + 20, *initrd_size);
break;
}
}
}
}
return kernel_size;
}
void pic_info(Monitor *mon) void pic_info(Monitor *mon)
{ {
@ -503,7 +553,6 @@ static void sun4uv_init(ram_addr_t RAM_size,
{ {
CPUState *env; CPUState *env;
m48t59_t *nvram; m48t59_t *nvram;
int linux_boot;
unsigned int i; unsigned int i;
long initrd_size, kernel_size; long initrd_size, kernel_size;
PCIBus *pci_bus, *pci_bus2, *pci_bus3; PCIBus *pci_bus, *pci_bus2, *pci_bus3;
@ -513,8 +562,6 @@ static void sun4uv_init(ram_addr_t RAM_size,
BlockDriverState *fd[MAX_FD]; BlockDriverState *fd[MAX_FD];
void *fw_cfg; void *fw_cfg;
linux_boot = (kernel_filename != NULL);
/* init CPUs */ /* init CPUs */
env = cpu_devinit(cpu_model, hwdef); env = cpu_devinit(cpu_model, hwdef);
@ -523,45 +570,6 @@ static void sun4uv_init(ram_addr_t RAM_size,
prom_init(hwdef->prom_addr, bios_name); prom_init(hwdef->prom_addr, bios_name);
kernel_size = 0;
initrd_size = 0;
if (linux_boot) {
/* XXX: put correct offset */
kernel_size = load_elf(kernel_filename, 0, NULL, NULL, NULL);
if (kernel_size < 0)
kernel_size = load_aout(kernel_filename, KERNEL_LOAD_ADDR,
ram_size - KERNEL_LOAD_ADDR);
if (kernel_size < 0)
kernel_size = load_image_targphys(kernel_filename,
KERNEL_LOAD_ADDR,
ram_size - KERNEL_LOAD_ADDR);
if (kernel_size < 0) {
fprintf(stderr, "qemu: could not load kernel '%s'\n",
kernel_filename);
exit(1);
}
/* load initrd */
if (initrd_filename) {
initrd_size = load_image_targphys(initrd_filename,
INITRD_LOAD_ADDR,
ram_size - INITRD_LOAD_ADDR);
if (initrd_size < 0) {
fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
initrd_filename);
exit(1);
}
}
if (initrd_size > 0) {
for (i = 0; i < 64 * TARGET_PAGE_SIZE; i += TARGET_PAGE_SIZE) {
if (ldl_phys(KERNEL_LOAD_ADDR + i) == 0x48647253) { // HdrS
stl_phys(KERNEL_LOAD_ADDR + i + 16, INITRD_LOAD_ADDR);
stl_phys(KERNEL_LOAD_ADDR + i + 20, initrd_size);
break;
}
}
}
}
irq = qemu_allocate_irqs(cpu_set_irq, env, MAX_PILS); irq = qemu_allocate_irqs(cpu_set_irq, env, MAX_PILS);
pci_bus = pci_apb_init(APB_SPECIAL_BASE, APB_MEM_BASE, irq, &pci_bus2, pci_bus = pci_apb_init(APB_SPECIAL_BASE, APB_MEM_BASE, irq, &pci_bus2,
@ -621,6 +629,11 @@ static void sun4uv_init(ram_addr_t RAM_size,
} }
floppy_controller = fdctrl_init(NULL/*6*/, 2, 0, 0x3f0, fd); floppy_controller = fdctrl_init(NULL/*6*/, 2, 0, 0x3f0, fd);
nvram = m48t59_init(NULL/*8*/, 0, 0x0074, NVRAM_SIZE, 59); nvram = m48t59_init(NULL/*8*/, 0, 0x0074, NVRAM_SIZE, 59);
initrd_size = 0;
kernel_size = sun4u_load_kernel(kernel_filename, initrd_filename,
ram_size, &initrd_size);
sun4u_NVRAM_set_params(nvram, NVRAM_SIZE, "Sun4u", RAM_size, boot_devices, sun4u_NVRAM_set_params(nvram, NVRAM_SIZE, "Sun4u", RAM_size, boot_devices,
KERNEL_LOAD_ADDR, kernel_size, KERNEL_LOAD_ADDR, kernel_size,
kernel_cmdline, kernel_cmdline,