* 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"
+#include "flash.h"
+#include "qemu-log.h"
+#include "mips-bios.h"
+#include "ide.h"
+#include "loader.h"
+#include "elf.h"
-#define BIOS_FILENAME "mips_bios.bin"
-//#define BIOS_FILENAME "system.bin"
-#define KERNEL_LOAD_ADDR 0x80010000
-#define INITRD_LOAD_ADDR 0x80800000
-
-#define VIRT_TO_PHYS_ADDEND (-0x80000000LL)
+#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 };
-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)
return 0;
}
-static CPUWriteMemoryFunc *mips_qemu_write[] = {
+static CPUWriteMemoryFunc * const mips_qemu_write[] = {
&mips_qemu_writel,
&mips_qemu_writel,
&mips_qemu_writel,
};
-static CPUReadMemoryFunc *mips_qemu_read[] = {
+static CPUReadMemoryFunc * const mips_qemu_read[] = {
&mips_qemu_readl,
&mips_qemu_readl,
&mips_qemu_readl,
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)
+typedef struct ResetData {
+ CPUState *env;
+ uint64_t vector;
+} ResetData;
+
+static int64_t load_kernel(void)
{
- int64_t entry = 0;
- long kernel_size, initrd_size;
+ int64_t entry, kernel_high;
+ long kernel_size, initrd_size, params_size;
+ ram_addr_t initrd_offset;
+ uint32_t *params_buf;
+ int big_endian;
- 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;
+#ifdef TARGET_WORDS_BIGENDIAN
+ big_endian = 1;
+#else
+ big_endian = 0;
+#endif
+ kernel_size = load_elf(loaderparams.kernel_filename, cpu_mips_kseg0_to_phys,
+ NULL, (uint64_t *)&entry, NULL,
+ (uint64_t *)&kernel_high, big_endian,
+ ELF_MACHINE, 1);
+ if (kernel_size >= 0) {
+ if ((entry & ~0x7fffffffULL) == 0x80000000)
+ entry = (int32_t)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_targphys(loaderparams.initrd_filename,
+ initrd_offset,
+ ram_size - 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);
}
}
/* Store command line. */
+ params_size = 264;
+ params_buf = qemu_malloc(params_size);
+
+ params_buf[0] = tswap32(ram_size);
+ params_buf[1] = tswap32(0x12345678);
+
if (initrd_size > 0) {
- int ret;
- ret = sprintf(phys_ram_base + (16 << 20) - 256,
- "rd_start=0x%08x rd_size=%li ",
- INITRD_LOAD_ADDR,
- initrd_size);
- strcpy (phys_ram_base + (16 << 20) - 256 + ret, kernel_cmdline);
- }
- else {
- strcpy (phys_ram_base + (16 << 20) - 256, kernel_cmdline);
+ snprintf((char *)params_buf + 8, 256, "rd_start=0x%" PRIx64 " rd_size=%li %s",
+ cpu_mips_phys_to_kseg0(NULL, initrd_offset),
+ initrd_size, loaderparams.kernel_cmdline);
+ } else {
+ snprintf((char *)params_buf + 8, 256, "%s", loaderparams.kernel_cmdline);
}
- *(int *)(phys_ram_base + (16 << 20) - 260) = tswap32 (0x12345678);
- *(int *)(phys_ram_base + (16 << 20) - 264) = tswap32 (ram_size);
+ rom_add_blob_fixed("params", params_buf, params_size,
+ (16 << 20) - 264);
+
+ return entry;
}
static void main_cpu_reset(void *opaque)
{
- CPUState *env = opaque;
- cpu_reset(env);
+ ResetData *s = (ResetData *)opaque;
+ CPUState *env = s->env;
- if (env->kernel_filename)
- load_kernel (env, env->ram_size, env->kernel_filename,
- env->kernel_cmdline, env->initrd_filename);
+ cpu_reset(env);
+ env->active_tc.PC = s->vector;
}
-void mips_r4k_init (int ram_size, int vga_ram_size, int boot_device,
- DisplayState *ds, const char **fd_filename, int snapshot,
+static const int sector_len = 32 * 1024;
+static
+void mips_r4k_init (ram_addr_t ram_size,
+ const char *boot_device,
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;
+ char *filename;
+ ram_addr_t ram_offset;
+ ram_addr_t bios_offset;
+ int bios_size;
CPUState *env;
+ ResetData *reset_info;
+ RTCState *rtc_state;
int i;
+ qemu_irq *i8259;
+ DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
+ DriveInfo *dinfo;
- env = cpu_init();
- register_savevm("cpu", 0, 3, cpu_save, cpu_load, env);
- qemu_register_reset(main_cpu_reset, env);
+ /* 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);
+ }
+ reset_info = qemu_mallocz(sizeof(ResetData));
+ reset_info->env = env;
+ reset_info->vector = env->active_tc.PC;
+ qemu_register_reset(main_cpu_reset, reset_info);
/* allocate RAM */
- cpu_register_physical_memory(0, ram_size, IO_MEM_RAM);
+ if (ram_size > (256 << 20)) {
+ fprintf(stderr,
+ "qemu: Too much memory for this machine: %d MB, maximum 256 MB\n",
+ ((unsigned int)ram_size / (1 << 20)));
+ exit(1);
+ }
+ ram_offset = qemu_ram_alloc(ram_size);
+
+ cpu_register_physical_memory(0, ram_size, ram_offset | IO_MEM_RAM);
if (!mips_qemu_iomemtype) {
- mips_qemu_iomemtype = cpu_register_io_memory(0, mips_qemu_read,
- mips_qemu_write, NULL);
+ mips_qemu_iomemtype = cpu_register_io_memory(mips_qemu_read,
+ mips_qemu_write, NULL);
}
cpu_register_physical_memory(0x1fbf0000, 0x10000, mips_qemu_iomemtype);
but initialize the hardware ourselves. When a kernel gets
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),
- BIOS_SIZE, bios_offset | IO_MEM_ROM);
+ if (bios_name == NULL)
+ bios_name = BIOS_FILENAME;
+ filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
+ if (filename) {
+ bios_size = get_image_size(filename);
} else {
+ bios_size = -1;
+ }
+ if ((bios_size > 0) && (bios_size <= BIOS_SIZE)) {
+ bios_offset = qemu_ram_alloc(BIOS_SIZE);
+ cpu_register_physical_memory(0x1fc00000, BIOS_SIZE,
+ bios_offset | IO_MEM_ROM);
+
+ load_image_targphys(filename, 0x1fc00000, BIOS_SIZE);
+ } else if ((dinfo = drive_get(IF_PFLASH, 0, 0)) != NULL) {
+ uint32_t mips_rom = 0x00400000;
+ bios_offset = qemu_ram_alloc(mips_rom);
+ if (!pflash_cfi01_register(0x1fc00000, bios_offset,
+ dinfo->bdrv, sector_len, mips_rom / sector_len,
+ 4, 0, 0, 0, 0)) {
+ fprintf(stderr, "qemu: Error registering flash memory.\n");
+ }
+ }
+ else {
/* not fatal */
fprintf(stderr, "qemu: Warning, could not load MIPS bios '%s'\n",
- buf);
+ bios_name);
+ }
+ if (filename) {
+ qemu_free(filename);
}
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;
+ reset_info->vector = load_kernel();
}
/* 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]);
+ isa_bus_new(NULL);
+ isa_bus_irqs(i8259);
+
+ rtc_state = rtc_init(2000);
/* 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,
- 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]);
- } else {
- fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd_table[0].model);
- exit (1);
+ pit = pit_init(0x40, i8259[0]);
+
+ for(i = 0; i < MAX_SERIAL_PORTS; i++) {
+ if (serial_hds[i]) {
+ serial_isa_init(i, serial_hds[i]);
}
}
- for(i = 0; i < 2; i++)
+ isa_vga_init();
+
+ if (nd_table[0].vlan)
+ isa_ne2000_init(0x300, 9, &nd_table[0]);
+
+ 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++) {
+ hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);
+ }
+
+ for(i = 0; i < MAX_IDE_BUS; i++)
isa_ide_init(ide_iobase[i], ide_iobase2[i], ide_irq[i],
- bs_table[2 * i], bs_table[2 * i + 1]);
+ hd[MAX_IDE_DEVS * i],
+ hd[MAX_IDE_DEVS * i + 1]);
+
+ isa_create_simple("i8042");
}
-QEMUMachine mips_machine = {
- "mips",
- "mips r4k platform",
- mips_r4k_init,
+static QEMUMachine mips_machine = {
+ .name = "mips",
+ .desc = "mips r4k platform",
+ .init = mips_r4k_init,
};
+
+static void mips_machine_init(void)
+{
+ qemu_register_machine(&mips_machine);
+}
+
+machine_init(mips_machine_init);
projects / qemu.git / blobdiff