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{
int base_addr = 0x18000000;
write_mmio_mitm(base_addr + addr, val);
return;
}
static const MemoryRegionOps ddr_mmio_ops = {
.read = ddr_mmio_read,
.write = ddr_mmio_write,
.endianness = DEVICE_BIG_ENDIAN
};
struct fw_sections parse_wr940n_firmware_header(char *filename){
struct fw_header fw_header;
struct fw_sections fw_sections;
FILE *fptr;
memset(&fw_header, 0, sizeof(fw_header));
fptr = fopen(filename, "rb");
fseek(fptr, 0,SEEK_SET);
size_t read = fread(&fw_header, 1, sizeof(fw_header), fptr);
if (read != sizeof(fw_header)){
printf("[-] Error while reading fw image %s\n", filename);
printf("[-] Read size: %ld\n", read);
}
// We need to swap since we're on AyyMD64
fw_header.version = bswap_32(fw_header.version);
fw_header.hw_id = bswap_32(fw_header.hw_id);
fw_header.hw_rev = bswap_32(fw_header.hw_rev);
fw_header.kernel_la = bswap_32(fw_header.kernel_la);
fw_header.kernel_ep = bswap_32(fw_header.kernel_ep);
fw_header.fw_length = bswap_32(fw_header.fw_length);
fw_header.kernel_ofs = bswap_32(fw_header.kernel_ofs);
fw_header.kernel_len = bswap_32(fw_header.kernel_len);
fw_header.rootfs_ofs = bswap_32(fw_header.rootfs_ofs);
fw_header.rootfs_len = bswap_32(fw_header.rootfs_len);
fw_header.boot_ofs = bswap_32(fw_header.boot_ofs);
fw_header.boot_len = bswap_32(fw_header.boot_len);
fw_header.ver_hi = bswap_16(fw_header.ver_hi);
fw_header.ver_mid = bswap_16(fw_header.ver_mid);
fw_header.ver_lo = bswap_16(fw_header.ver_lo);
printf("[*] Vendor: %s\n", fw_header.vendor_name);
printf("[*] FW Version: %s\n", fw_header.fw_version);
printf("[*] fw_header.kernel_la: 0x%08x\n", fw_header.kernel_la);
printf("[*] fw_header.kernel_ep: 0x%08x\n", fw_header.kernel_ep);
printf("[*] fw_header.kernel_ofs: 0x%08x\n", fw_header.kernel_ofs);
printf("[*] fw_header.kernel_len: 0x%08x\n", fw_header.kernel_len);
printf("[*] fw_header.rootfs_ofs: 0x%08x\n", fw_header.rootfs_ofs);
printf("[*] fw_header.rootfs_len: 0x%08x\n", fw_header.rootfs_len);
printf("[*] fw_header.bootlen: 0x%08x\n", fw_header.boot_len);
printf("[*] fw_header.boot_ofs: 0x%08x\n", fw_header.boot_ofs);
printf("[*] fw_header.fw_length: 0x%08x\n", fw_header.fw_length);
fw_sections.boot_loader_len = fw_header.fw_length - 0x200;
fw_sections.bootloader = g_malloc(fw_sections.boot_loader_len + 1);
read = fread(fw_sections.bootloader, 1, fw_sections.boot_loader_len,
fptr);
if (read != fw_sections.boot_loader_len){
printf("[-] Error while reading from file: %s\n", filename);
}
return fw_sections;
}
static void
mips_wr940n_init(MachineState *machine)
{
const char *kernel_filename = machine->kernel_filename;
const char *kernel_cmdline = machine->kernel_cmdline;
const char *initrd_filename = machine->initrd_filename;
char *filename;
MemoryRegion *address_space_mem = get_system_memory();
MemoryRegion *gpio_mmio = g_new(MemoryRegion, 1);
MemoryRegion *ddr_mmio = g_new(MemoryRegion, 1);
Clock *cpuclk;
MIPSCPU *cpu;
CPUMIPSState *env;
ResetData *reset_info;
struct fw_sections fw_sections;
memset(&fw_sections, 0, sizeof(fw_sections));
// Connect to MMIO Server
connect_to_mmio_server();
cpuclk = clock_new(OBJECT(machine), "cpu-refclk");
clock_set_hz(cpuclk, 200 * 1000000); /* 200 MHz */
/* Init CPUs. */
cpu = mips_cpu_create_with_clock(machine->cpu_type, cpuclk);
env = &cpu->env;
reset_info = g_new0(ResetData, 1);
reset_info->cpu = cpu;
reset_info->vector = 0x9F000400;
qemu_register_reset(main_cpu_reset, reset_info);
/* Allocate RAM. */
memory_region_add_subregion(address_space_mem, 0, machine->ram);
/* bootloader */
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, machine->firmware ?:
BIOS_FILENAME);
if (filename) {