void kernel_main()
{
int i = 0;
//init_sys_mmu();
//start_mmu(); /* 开启MMU */
unsigned int end = (unsigned int)(&__end+PGDR_MASK)&0xffffc000;
unsigned int physfree = init_paging(end-0xC0000000);
init_ram(physfree);
/* 重定位内核*/
asm volatile(
"add sp, sp, #0xC0000000\n\t"
);
/*清空恒等隐射*/
for(i = 1; i < NR_KERN_PAGETABLE; i++)
PTD[i] = 0;
uart_init();
char *_temp = "0000000000\r\n";
unsigned int temp;
HexToString((unsigned int)&temp, _temp);
uart_puts(_temp);
task_init();
unsigned char rank = MAX_rank ;
unsigned int task_func = (unsigned int)task_idle0;
unsigned char TID = task_create( rank , task_func);
task_run(TID);
task_func = (unsigned int)task_idle1;
TID = task_create( rank , task_func);
task_run(TID);
task_func = (unsigned int)task_idle2;
TID = task_create( rank , task_func);
task_run(TID);
task_func = (unsigned int)task_idle3;
TID = task_create( rank , task_func);
task_run(TID);
init_arm_timer(Kernel_1Hz);
_enable_interrupts();
while(1)
{
char *_ch = "0000000000\r\n";
for(i = 0; i < 20; i++)
{
HexToString(PTD[i], _ch);
uart_puts(_ch);
}
for(i = 0; i < 20; i++)
{
HexToString(PTD[i+0xC00], _ch);
uart_puts(_ch);
}
sleep(500);
}
}
static void android_arm_init_(ram_addr_t ram_size,
const char *boot_device,
const char *kernel_filename,
const char *kernel_cmdline,
const char *initrd_filename,
const char *cpu_model)
{
CPUState *env;
qemu_irq *cpu_pic;
DeviceState *gf_int;
int i;
if (!cpu_model)
cpu_model = "arm926";
env = cpu_init(cpu_model);
init_ram(ram_size);
cpu_pic = arm_pic_init_cpu(env);
GoldfishBus *gbus = goldfish_bus_init(0xff001000, 1);
gf_int = goldfish_int_create(gbus, 0xff000000, cpu_pic[ARM_PIC_CPU_IRQ], cpu_pic[ARM_PIC_CPU_FIQ]);
goldfish_device_init(gf_int, 0xff010000, 10);
goldfish_timer_create(gbus, 0xff003000, 3);
goldfish_rtc_create(gbus);
goldfish_tty_create(gbus, serial_hds[0], 0, 0xff002000, 4);
for(i = 1; i < MAX_SERIAL_PORTS; i++) {
printf("android_arm_init serial %d %x\n", i, serial_hds[i]);
if(serial_hds[i]) {
printf("serial_hds: %d\n",i);
goldfish_tty_create(gbus, serial_hds[i], i, 0, 0);
}
}
for(i = 0; i < MAX_NICS; i++) {
if (nd_table[i].vlan) {
if (nd_table[i].model == NULL
|| strcmp(nd_table[i].model, "smc91c111") == 0) {
GoldfishDevice *smc_device;
smc_device = g_malloc0(sizeof(*smc_device));
smc_device->name = (char *)"smc91x";
smc_device->id = i;
smc_device->size = 0x1000;
smc_device->irq_count = 1;
goldfish_add_device_no_io(smc_device);
smc91c111_init(&nd_table[i], smc_device->base, qdev_get_gpio_in(gf_int, smc_device->irq));
} else {
fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd_table[0].model);
exit (1);
}
}
}
goldfish_fb_create(gbus, 0);
#ifdef HAS_AUDIO
//goldfish_audio_init(0xff004000, 0, audio_input_source);
#endif
goldfish_mmc_create(gbus, 0xff005000, 0);
goldfish_memlog_create(gbus, 0xff006000);
goldfish_battery_create(gbus);
goldfish_events_create(gbus, gf_int);
goldfish_nand_create(gbus);
goldfish_pipe_create(gbus);
#if TEST_SWITCH
{
void *sw;
sw = goldfish_switch_create(gbus, "test", NULL, NULL, 0);
goldfish_switch_set_state(sw, 1);
goldfish_switch_create(gbus, "test2", switch_test_write, sw, 1);
}
#endif
info.ram_size = ram_size;
info.kernel_filename = kernel_filename;
info.kernel_cmdline = kernel_cmdline;
info.initrd_filename = initrd_filename;
info.nb_cpus = 1;
arm_load_kernel(env, &info);
android_emulation_setup();
}
void android_arm_resize_ram(ram_addr_t new_size){
assert(current_machine->init == android_arm_init_);
qemu_ram_free(ram_offset); // RAM starts at address 0
init_ram(new_size);
}