* All peripherial devices are attached to this "bus" with
* the standard PC ISA addresses.
*/
-#include "vl.h"
+#include "hw.h"
+#include "mips.h"
+#include "pc.h"
+#include "isa.h"
+#include "net.h"
+#include "sysemu.h"
+#include "boards.h"
+#ifdef TARGET_WORDS_BIGENDIAN
#define BIOS_FILENAME "mips_bios.bin"
-//#define BIOS_FILENAME "system.bin"
-#define KERNEL_LOAD_ADDR 0x80010000
-#define INITRD_LOAD_ADDR 0x80800000
+#else
+#define BIOS_FILENAME "mipsel_bios.bin"
+#endif
-#define VIRT_TO_PHYS_ADDEND (-0x80000000LL)
+#define PHYS_TO_VIRT(x) ((x) | ~(target_ulong)0x7fffffff)
+
+#define VIRT_TO_PHYS_ADDEND (-((int64_t)(int32_t)0x80000000))
+
+#define MAX_IDE_BUS 2
static const int ide_iobase[2] = { 0x1f0, 0x170 };
static const int ide_iobase2[2] = { 0x3f6, 0x376 };
static const int ide_irq[2] = { 14, 15 };
+static int serial_io[MAX_SERIAL_PORTS] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
+static int serial_irq[MAX_SERIAL_PORTS] = { 4, 3, 4, 3 };
+
extern FILE *logfile;
static PITState *pit; /* PIT i8254 */
-/*i8254 PIT is attached to the IRQ0 at PIC i8259 */
-/*The PIC is attached to the MIPS CPU INT0 pin */
-static void pic_irq_request(void *opaque, int level)
-{
- CPUState *env = first_cpu;
- if (level) {
- env->CP0_Cause |= 0x00000400;
- cpu_interrupt(env, CPU_INTERRUPT_HARD);
- } else {
- env->CP0_Cause &= ~0x00000400;
- cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
- }
-}
+/* i8254 PIT is attached to the IRQ0 at PIC i8259 */
+
+static struct _loaderparams {
+ int ram_size;
+ const char *kernel_filename;
+ const char *kernel_cmdline;
+ const char *initrd_filename;
+} loaderparams;
static void mips_qemu_writel (void *opaque, target_phys_addr_t addr,
uint32_t val)
static int mips_qemu_iomemtype = 0;
-void load_kernel (CPUState *env, int ram_size, const char *kernel_filename,
- const char *kernel_cmdline,
- const char *initrd_filename)
+static void load_kernel (CPUState *env)
{
- int64_t entry = 0;
+ int64_t entry, kernel_low, kernel_high;
long kernel_size, initrd_size;
+ ram_addr_t initrd_offset;
- kernel_size = load_elf(kernel_filename, VIRT_TO_PHYS_ADDEND, &entry);
- if (kernel_size >= 0)
- env->PC = entry;
- else {
- kernel_size = load_image(kernel_filename,
- phys_ram_base + KERNEL_LOAD_ADDR + VIRT_TO_PHYS_ADDEND);
- if (kernel_size < 0) {
- fprintf(stderr, "qemu: could not load kernel '%s'\n",
- kernel_filename);
- exit(1);
- }
- env->PC = KERNEL_LOAD_ADDR;
+ kernel_size = load_elf(loaderparams.kernel_filename, VIRT_TO_PHYS_ADDEND,
+ &entry, &kernel_low, &kernel_high);
+ if (kernel_size >= 0) {
+ if ((entry & ~0x7fffffffULL) == 0x80000000)
+ entry = (int32_t)entry;
+ env->PC[env->current_tc] = entry;
+ } else {
+ fprintf(stderr, "qemu: could not load kernel '%s'\n",
+ loaderparams.kernel_filename);
+ exit(1);
}
/* load initrd */
initrd_size = 0;
- if (initrd_filename) {
- initrd_size = load_image(initrd_filename,
- phys_ram_base + INITRD_LOAD_ADDR + VIRT_TO_PHYS_ADDEND);
+ initrd_offset = 0;
+ if (loaderparams.initrd_filename) {
+ initrd_size = get_image_size (loaderparams.initrd_filename);
+ if (initrd_size > 0) {
+ initrd_offset = (kernel_high + ~TARGET_PAGE_MASK) & TARGET_PAGE_MASK;
+ if (initrd_offset + initrd_size > ram_size) {
+ fprintf(stderr,
+ "qemu: memory too small for initial ram disk '%s'\n",
+ loaderparams.initrd_filename);
+ exit(1);
+ }
+ initrd_size = load_image(loaderparams.initrd_filename,
+ phys_ram_base + initrd_offset);
+ }
if (initrd_size == (target_ulong) -1) {
fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
- initrd_filename);
+ loaderparams.initrd_filename);
exit(1);
}
}
if (initrd_size > 0) {
int ret;
ret = sprintf(phys_ram_base + (16 << 20) - 256,
- "rd_start=0x%08x rd_size=%li ",
- INITRD_LOAD_ADDR,
+ "rd_start=0x" TARGET_FMT_lx " rd_size=%li ",
+ PHYS_TO_VIRT((uint32_t)initrd_offset),
initrd_size);
- strcpy (phys_ram_base + (16 << 20) - 256 + ret, kernel_cmdline);
+ strcpy (phys_ram_base + (16 << 20) - 256 + ret,
+ loaderparams.kernel_cmdline);
}
else {
- strcpy (phys_ram_base + (16 << 20) - 256, kernel_cmdline);
+ strcpy (phys_ram_base + (16 << 20) - 256,
+ loaderparams.kernel_cmdline);
}
- *(int *)(phys_ram_base + (16 << 20) - 260) = tswap32 (0x12345678);
- *(int *)(phys_ram_base + (16 << 20) - 264) = tswap32 (ram_size);
+ *(int32_t *)(phys_ram_base + (16 << 20) - 260) = tswap32 (0x12345678);
+ *(int32_t *)(phys_ram_base + (16 << 20) - 264) = tswap32 (ram_size);
}
static void main_cpu_reset(void *opaque)
CPUState *env = opaque;
cpu_reset(env);
- if (env->kernel_filename)
- load_kernel (env, env->ram_size, env->kernel_filename,
- env->kernel_cmdline, env->initrd_filename);
+ if (loaderparams.kernel_filename)
+ load_kernel (env);
}
-void mips_r4k_init (int ram_size, int vga_ram_size, int boot_device,
- DisplayState *ds, const char **fd_filename, int snapshot,
+static
+void mips_r4k_init (int ram_size, int vga_ram_size,
+ const char *boot_device, DisplayState *ds,
const char *kernel_filename, const char *kernel_cmdline,
- const char *initrd_filename)
+ const char *initrd_filename, const char *cpu_model)
{
char buf[1024];
unsigned long bios_offset;
- int ret;
+ int bios_size;
CPUState *env;
+ RTCState *rtc_state;
int i;
+ qemu_irq *i8259;
+ int index;
+ BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
- env = cpu_init();
+ /* init CPUs */
+ if (cpu_model == NULL) {
+#ifdef TARGET_MIPS64
+ cpu_model = "R4000";
+#else
+ cpu_model = "24Kf";
+#endif
+ }
+ env = cpu_init(cpu_model);
+ if (!env) {
+ fprintf(stderr, "Unable to find CPU definition\n");
+ exit(1);
+ }
register_savevm("cpu", 0, 3, cpu_save, cpu_load, env);
qemu_register_reset(main_cpu_reset, env);
if (!mips_qemu_iomemtype) {
mips_qemu_iomemtype = cpu_register_io_memory(0, mips_qemu_read,
- mips_qemu_write, NULL);
+ mips_qemu_write, NULL);
}
cpu_register_physical_memory(0x1fbf0000, 0x10000, mips_qemu_iomemtype);
preloaded we also initialize the hardware, since the BIOS wasn't
run. */
bios_offset = ram_size + vga_ram_size;
- snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME);
- ret = load_image(buf, phys_ram_base + bios_offset);
- if (ret == BIOS_SIZE) {
- cpu_register_physical_memory((uint32_t)(0x1fc00000),
+ if (bios_name == NULL)
+ bios_name = BIOS_FILENAME;
+ snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name);
+ bios_size = load_image(buf, phys_ram_base + bios_offset);
+ if ((bios_size > 0) && (bios_size <= BIOS_SIZE)) {
+ cpu_register_physical_memory(0x1fc00000,
BIOS_SIZE, bios_offset | IO_MEM_ROM);
} else {
/* not fatal */
}
if (kernel_filename) {
- load_kernel (env, ram_size, kernel_filename, kernel_cmdline,
- initrd_filename);
- env->ram_size = ram_size;
- env->kernel_filename = kernel_filename;
- env->kernel_cmdline = kernel_cmdline;
- env->initrd_filename = initrd_filename;
+ loaderparams.ram_size = ram_size;
+ loaderparams.kernel_filename = kernel_filename;
+ loaderparams.kernel_cmdline = kernel_cmdline;
+ loaderparams.initrd_filename = initrd_filename;
+ load_kernel (env);
}
/* Init CPU internal devices */
+ cpu_mips_irq_init_cpu(env);
cpu_mips_clock_init(env);
cpu_mips_irqctrl_init();
+ /* The PIC is attached to the MIPS CPU INT0 pin */
+ i8259 = i8259_init(env->irq[2]);
+
+ rtc_state = rtc_init(0x70, i8259[8]);
+
/* Register 64 KB of ISA IO space at 0x14000000 */
isa_mmio_init(0x14000000, 0x00010000);
isa_mem_base = 0x10000000;
- isa_pic = pic_init(pic_irq_request, env);
- pit = pit_init(0x40, 0);
- serial_init(&pic_set_irq_new, isa_pic, 0x3f8, 4, serial_hds[0]);
- isa_vga_init(ds, phys_ram_base + ram_size, ram_size,
+ pit = pit_init(0x40, i8259[0]);
+
+ for(i = 0; i < MAX_SERIAL_PORTS; i++) {
+ if (serial_hds[i]) {
+ serial_init(serial_io[i], i8259[serial_irq[i]], serial_hds[i]);
+ }
+ }
+
+ isa_vga_init(ds, phys_ram_base + ram_size, ram_size,
vga_ram_size);
if (nd_table[0].vlan) {
if (nd_table[0].model == NULL
|| strcmp(nd_table[0].model, "ne2k_isa") == 0) {
- isa_ne2000_init(0x300, 9, &nd_table[0]);
+ isa_ne2000_init(0x300, i8259[9], &nd_table[0]);
+ } else if (strcmp(nd_table[0].model, "?") == 0) {
+ fprintf(stderr, "qemu: Supported NICs: ne2k_isa\n");
+ exit (1);
} else {
fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd_table[0].model);
exit (1);
}
}
- for(i = 0; i < 2; i++)
- isa_ide_init(ide_iobase[i], ide_iobase2[i], ide_irq[i],
- bs_table[2 * i], bs_table[2 * i + 1]);
+ if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
+ fprintf(stderr, "qemu: too many IDE bus\n");
+ exit(1);
+ }
+
+ for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) {
+ index = drive_get_index(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);
+ if (index != -1)
+ hd[i] = drives_table[index].bdrv;
+ else
+ hd[i] = NULL;
+ }
+
+ for(i = 0; i < MAX_IDE_BUS; i++)
+ isa_ide_init(ide_iobase[i], ide_iobase2[i], i8259[ide_irq[i]],
+ hd[MAX_IDE_DEVS * i],
+ hd[MAX_IDE_DEVS * i + 1]);
+
+ i8042_init(i8259[1], i8259[12], 0x60);
}
QEMUMachine mips_machine = {
projects / qemu.git / blobdiff