#define LINUX_BOOT_FILENAME "linux_boot.bin"
#define KERNEL_LOAD_ADDR 0x00100000
-#define INITRD_LOAD_ADDR 0x00400000
+#define INITRD_LOAD_ADDR 0x00600000
#define KERNEL_PARAMS_ADDR 0x00090000
#define KERNEL_CMDLINE_ADDR 0x00099000
-int speaker_data_on;
-int dummy_refresh_clock;
static fdctrl_t *floppy_controller;
static RTCState *rtc_state;
static PITState *pit;
+static IOAPICState *ioapic;
+static PCIDevice *i440fx_state;
static void ioport80_write(void *opaque, uint32_t addr, uint32_t data)
{
}
/* TSC handling */
-
uint64_t cpu_get_tsc(CPUX86State *env)
{
- return qemu_get_clock(vm_clock);
+ /* Note: when using kqemu, it is more logical to return the host TSC
+ because kqemu does not trap the RDTSC instruction for
+ performance reasons */
+#if USE_KQEMU
+ if (env->kqemu_enabled) {
+ return cpu_get_real_ticks();
+ } else
+#endif
+ {
+ return cpu_get_ticks();
+ }
}
-/* PC cmos mappings */
+/* SMM support */
+void cpu_smm_update(CPUState *env)
+{
+ if (i440fx_state && env == first_cpu)
+ i440fx_set_smm(i440fx_state, (env->hflags >> HF_SMM_SHIFT) & 1);
+}
-#define REG_EQUIPMENT_BYTE 0x14
-#define REG_IBM_CENTURY_BYTE 0x32
-#define REG_IBM_PS2_CENTURY_BYTE 0x37
+/* IRQ handling */
+int cpu_get_pic_interrupt(CPUState *env)
+{
+ int intno;
+
+ intno = apic_get_interrupt(env);
+ if (intno >= 0) {
+ /* set irq request if a PIC irq is still pending */
+ /* XXX: improve that */
+ pic_update_irq(isa_pic);
+ return intno;
+ }
+ /* read the irq from the PIC */
+ intno = pic_read_irq(isa_pic);
+ return intno;
+}
-static inline int to_bcd(RTCState *s, int a)
+static void pic_irq_request(void *opaque, int level)
{
- return ((a / 10) << 4) | (a % 10);
+ CPUState *env = opaque;
+ if (level)
+ cpu_interrupt(env, CPU_INTERRUPT_HARD);
+ else
+ cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
}
+/* PC cmos mappings */
+
+#define REG_EQUIPMENT_BYTE 0x14
+
static int cmos_get_fd_drive_type(int fd0)
{
int val;
return val;
}
-static void cmos_init(int ram_size, int boot_device)
+static void cmos_init_hd(int type_ofs, int info_ofs, BlockDriverState *hd)
+{
+ RTCState *s = rtc_state;
+ int cylinders, heads, sectors;
+ bdrv_get_geometry_hint(hd, &cylinders, &heads, §ors);
+ rtc_set_memory(s, type_ofs, 47);
+ rtc_set_memory(s, info_ofs, cylinders);
+ rtc_set_memory(s, info_ofs + 1, cylinders >> 8);
+ rtc_set_memory(s, info_ofs + 2, heads);
+ rtc_set_memory(s, info_ofs + 3, 0xff);
+ rtc_set_memory(s, info_ofs + 4, 0xff);
+ rtc_set_memory(s, info_ofs + 5, 0xc0 | ((heads > 8) << 3));
+ rtc_set_memory(s, info_ofs + 6, cylinders);
+ rtc_set_memory(s, info_ofs + 7, cylinders >> 8);
+ rtc_set_memory(s, info_ofs + 8, sectors);
+}
+
+/* hd_table must contain 4 block drivers */
+static void cmos_init(int ram_size, int boot_device, BlockDriverState **hd_table)
{
RTCState *s = rtc_state;
int val;
int fd0, fd1, nb;
- time_t ti;
- struct tm *tm;
-
- /* set the CMOS date */
- time(&ti);
- if (rtc_utc)
- tm = gmtime(&ti);
- else
- tm = localtime(&ti);
- rtc_set_date(s, tm);
-
- val = to_bcd(s, (tm->tm_year / 100) + 19);
- rtc_set_memory(s, REG_IBM_CENTURY_BYTE, val);
- rtc_set_memory(s, REG_IBM_PS2_CENTURY_BYTE, val);
+ int i;
/* various important CMOS locations needed by PC/Bochs bios */
rtc_set_memory(s, 0x30, val);
rtc_set_memory(s, 0x31, val >> 8);
- val = (ram_size / 65536) - ((16 * 1024 * 1024) / 65536);
+ if (ram_size > (16 * 1024 * 1024))
+ val = (ram_size / 65536) - ((16 * 1024 * 1024) / 65536);
+ else
+ val = 0;
if (val > 65535)
val = 65535;
rtc_set_memory(s, 0x34, val);
case 'a':
case 'b':
rtc_set_memory(s, 0x3d, 0x01); /* floppy boot */
+ if (!fd_bootchk)
+ rtc_set_memory(s, 0x38, 0x01); /* disable signature check */
break;
default:
case 'c':
val |= 0x04; /* PS/2 mouse installed */
rtc_set_memory(s, REG_EQUIPMENT_BYTE, val);
+ /* hard drives */
+
+ rtc_set_memory(s, 0x12, (hd_table[0] ? 0xf0 : 0) | (hd_table[1] ? 0x0f : 0));
+ if (hd_table[0])
+ cmos_init_hd(0x19, 0x1b, hd_table[0]);
+ if (hd_table[1])
+ cmos_init_hd(0x1a, 0x24, hd_table[1]);
+
+ val = 0;
+ for (i = 0; i < 4; i++) {
+ if (hd_table[i]) {
+ int cylinders, heads, sectors, translation;
+ /* NOTE: bdrv_get_geometry_hint() returns the physical
+ geometry. It is always such that: 1 <= sects <= 63, 1
+ <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
+ geometry can be different if a translation is done. */
+ translation = bdrv_get_translation_hint(hd_table[i]);
+ if (translation == BIOS_ATA_TRANSLATION_AUTO) {
+ bdrv_get_geometry_hint(hd_table[i], &cylinders, &heads, §ors);
+ if (cylinders <= 1024 && heads <= 16 && sectors <= 63) {
+ /* No translation. */
+ translation = 0;
+ } else {
+ /* LBA translation. */
+ translation = 1;
+ }
+ } else {
+ translation--;
+ }
+ val |= translation << (i * 2);
+ }
+ }
+ rtc_set_memory(s, 0x39, val);
}
-static void speaker_ioport_write(void *opaque, uint32_t addr, uint32_t val)
+void ioport_set_a20(int enable)
{
- speaker_data_on = (val >> 1) & 1;
- pit_set_gate(pit, 2, val & 1);
+ /* XXX: send to all CPUs ? */
+ cpu_x86_set_a20(first_cpu, enable);
}
-static uint32_t speaker_ioport_read(void *opaque, uint32_t addr)
+int ioport_get_a20(void)
{
- int out;
- out = pit_get_out(pit, 2, qemu_get_clock(vm_clock));
- dummy_refresh_clock ^= 1;
- return (speaker_data_on << 1) | pit_get_gate(pit, 2) | (out << 5) |
- (dummy_refresh_clock << 4);
+ return ((first_cpu->a20_mask >> 20) & 1);
}
static void ioport92_write(void *opaque, uint32_t addr, uint32_t val)
{
- cpu_x86_set_a20(cpu_single_env, (val >> 1) & 1);
+ ioport_set_a20((val >> 1) & 1);
/* XXX: bit 0 is fast reset */
}
static uint32_t ioport92_read(void *opaque, uint32_t addr)
{
- return ((cpu_single_env->a20_mask >> 20) & 1) << 1;
+ return ioport_get_a20() << 1;
}
/***********************************************************/
int fd, size;
int setup_sects;
- fd = open(filename, O_RDONLY);
+ fd = open(filename, O_RDONLY | O_BINARY);
if (fd < 0)
return -1;
return -1;
}
+static void main_cpu_reset(void *opaque)
+{
+ CPUState *env = opaque;
+ cpu_reset(env);
+}
+
static const int ide_iobase[2] = { 0x1f0, 0x170 };
static const int ide_iobase2[2] = { 0x3f6, 0x376 };
static const int ide_irq[2] = { 14, 15 };
#define NE2000_NB_MAX 6
-static uint32_t ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360, 0x280, 0x380 };
+static int ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360, 0x280, 0x380 };
static int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 };
+static int serial_io[MAX_SERIAL_PORTS] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8 };
+static int serial_irq[MAX_SERIAL_PORTS] = { 4, 3, 4, 3 };
+
+static int parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc };
+static int parallel_irq[MAX_PARALLEL_PORTS] = { 7, 7, 7 };
+
+#ifdef HAS_AUDIO
+static void audio_init (PCIBus *pci_bus)
+{
+ struct soundhw *c;
+ int audio_enabled = 0;
+
+ for (c = soundhw; !audio_enabled && c->name; ++c) {
+ audio_enabled = c->enabled;
+ }
+
+ if (audio_enabled) {
+ AudioState *s;
+
+ s = AUD_init ();
+ if (s) {
+ for (c = soundhw; c->name; ++c) {
+ if (c->enabled) {
+ if (c->isa) {
+ c->init.init_isa (s);
+ }
+ else {
+ if (pci_bus) {
+ c->init.init_pci (pci_bus, s);
+ }
+ }
+ }
+ }
+ }
+ }
+}
+#endif
+
+static void pc_init_ne2k_isa(NICInfo *nd)
+{
+ static int nb_ne2k = 0;
+
+ if (nb_ne2k == NE2000_NB_MAX)
+ return;
+ isa_ne2000_init(ne2000_io[nb_ne2k], ne2000_irq[nb_ne2k], nd);
+ nb_ne2k++;
+}
+
/* PC hardware initialisation */
-void pc_init(int ram_size, int vga_ram_size, int boot_device,
- DisplayState *ds, const char **fd_filename, int snapshot,
- const char *kernel_filename, const char *kernel_cmdline,
- const char *initrd_filename)
+static void pc_init1(int ram_size, int vga_ram_size, int boot_device,
+ DisplayState *ds, const char **fd_filename, int snapshot,
+ const char *kernel_filename, const char *kernel_cmdline,
+ const char *initrd_filename,
+ int pci_enabled)
{
char buf[1024];
- int ret, linux_boot, initrd_size, i, nb_nics1, fd;
- unsigned long bios_offset, vga_bios_offset;
- int bios_size, isa_bios_size;
+ int ret, linux_boot, initrd_size, i;
+ ram_addr_t ram_addr, vga_ram_addr, bios_offset, vga_bios_offset;
+ int bios_size, isa_bios_size, vga_bios_size;
PCIBus *pci_bus;
-
+ int piix3_devfn = -1;
+ CPUState *env;
+ NICInfo *nd;
+
linux_boot = (kernel_filename != NULL);
+ /* init CPUs */
+ for(i = 0; i < smp_cpus; i++) {
+ env = cpu_init();
+ if (i != 0)
+ env->hflags |= HF_HALTED_MASK;
+ if (smp_cpus > 1) {
+ /* XXX: enable it in all cases */
+ env->cpuid_features |= CPUID_APIC;
+ }
+ register_savevm("cpu", i, 4, cpu_save, cpu_load, env);
+ qemu_register_reset(main_cpu_reset, env);
+ if (pci_enabled) {
+ apic_init(env);
+ }
+ }
+
/* allocate RAM */
- cpu_register_physical_memory(0, ram_size, 0);
+ ram_addr = qemu_ram_alloc(ram_size);
+ cpu_register_physical_memory(0, ram_size, ram_addr);
- /* BIOS load */
- bios_offset = ram_size + vga_ram_size;
- vga_bios_offset = bios_offset + 256 * 1024;
+ /* allocate VGA RAM */
+ vga_ram_addr = qemu_ram_alloc(vga_ram_size);
+ /* BIOS load */
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME);
bios_size = get_image_size(buf);
if (bios_size <= 0 ||
- (bios_size % 65536) != 0 ||
- bios_size > (256 * 1024)) {
+ (bios_size % 65536) != 0) {
goto bios_error;
}
+ bios_offset = qemu_ram_alloc(bios_size);
ret = load_image(buf, phys_ram_base + bios_offset);
if (ret != bios_size) {
bios_error:
- fprintf(stderr, "qemu: could not load PC bios '%s'\n", buf);
+ fprintf(stderr, "qemu: could not load PC BIOS '%s'\n", buf);
exit(1);
}
} else {
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, VGABIOS_FILENAME);
}
+ vga_bios_size = get_image_size(buf);
+ if (vga_bios_size <= 0 || vga_bios_size > 65536)
+ goto vga_bios_error;
+ vga_bios_offset = qemu_ram_alloc(65536);
+
ret = load_image(buf, phys_ram_base + vga_bios_offset);
-
+ if (ret != vga_bios_size) {
+ vga_bios_error:
+ fprintf(stderr, "qemu: could not load VGA BIOS '%s'\n", buf);
+ exit(1);
+ }
+
/* setup basic memory access */
cpu_register_physical_memory(0xc0000, 0x10000,
vga_bios_offset | IO_MEM_ROM);
cpu_register_physical_memory(0x100000 - isa_bios_size,
isa_bios_size,
(bios_offset + bios_size - isa_bios_size) | IO_MEM_ROM);
+
+ {
+ ram_addr_t option_rom_offset;
+ int size, offset;
+
+ offset = 0;
+ for (i = 0; i < nb_option_roms; i++) {
+ size = get_image_size(option_rom[i]);
+ if (size < 0) {
+ fprintf(stderr, "Could not load option rom '%s'\n",
+ option_rom[i]);
+ exit(1);
+ }
+ if (size > (0x10000 - offset))
+ goto option_rom_error;
+ option_rom_offset = qemu_ram_alloc(size);
+ ret = load_image(option_rom[i], phys_ram_base + option_rom_offset);
+ if (ret != size) {
+ option_rom_error:
+ fprintf(stderr, "Too many option ROMS\n");
+ exit(1);
+ }
+ size = (size + 4095) & ~4095;
+ cpu_register_physical_memory(0xd0000 + offset,
+ size, option_rom_offset | IO_MEM_ROM);
+ offset += size;
+ }
+ }
+
/* map all the bios at the top of memory */
cpu_register_physical_memory((uint32_t)(-bios_size),
bios_size, bios_offset | IO_MEM_ROM);
}
if (pci_enabled) {
- pci_bus = i440fx_init();
- piix3_init(pci_bus);
+ pci_bus = i440fx_init(&i440fx_state);
+ piix3_devfn = piix3_init(pci_bus, -1);
} else {
pci_bus = NULL;
}
if (cirrus_vga_enabled) {
if (pci_enabled) {
pci_cirrus_vga_init(pci_bus,
- ds, phys_ram_base + ram_size, ram_size,
- vga_ram_size);
+ ds, phys_ram_base + vga_ram_addr,
+ vga_ram_addr, vga_ram_size);
} else {
- isa_cirrus_vga_init(ds, phys_ram_base + ram_size, ram_size,
- vga_ram_size);
+ isa_cirrus_vga_init(ds, phys_ram_base + vga_ram_addr,
+ vga_ram_addr, vga_ram_size);
}
} else {
- vga_initialize(pci_bus, ds, phys_ram_base + ram_size, ram_size,
- vga_ram_size);
+ if (pci_enabled) {
+ pci_vga_init(pci_bus, ds, phys_ram_base + vga_ram_addr,
+ vga_ram_addr, vga_ram_size, 0, 0);
+ } else {
+ isa_vga_init(ds, phys_ram_base + vga_ram_addr,
+ vga_ram_addr, vga_ram_size);
+ }
}
rtc_state = rtc_init(0x70, 8);
- register_ioport_read(0x61, 1, 1, speaker_ioport_read, NULL);
- register_ioport_write(0x61, 1, 1, speaker_ioport_write, NULL);
register_ioport_read(0x92, 1, 1, ioport92_read, NULL);
register_ioport_write(0x92, 1, 1, ioport92_write, NULL);
- pic_init();
+ if (pci_enabled) {
+ ioapic = ioapic_init();
+ }
+ isa_pic = pic_init(pic_irq_request, first_cpu);
pit = pit_init(0x40, 0);
+ pcspk_init(pit);
+ if (pci_enabled) {
+ pic_set_alt_irq_func(isa_pic, ioapic_set_irq, ioapic);
+ }
- fd = serial_open_device();
- serial_init(0x3f8, 4, fd);
+ for(i = 0; i < MAX_SERIAL_PORTS; i++) {
+ if (serial_hds[i]) {
+ serial_init(&pic_set_irq_new, isa_pic,
+ serial_io[i], serial_irq[i], serial_hds[i]);
+ }
+ }
- if (pci_enabled) {
- for(i = 0; i < nb_nics; i++) {
- pci_ne2000_init(pci_bus, &nd_table[i]);
+ for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
+ if (parallel_hds[i]) {
+ parallel_init(parallel_io[i], parallel_irq[i], parallel_hds[i]);
}
- pci_piix3_ide_init(pci_bus, bs_table);
- } else {
- nb_nics1 = nb_nics;
- if (nb_nics1 > NE2000_NB_MAX)
- nb_nics1 = NE2000_NB_MAX;
- for(i = 0; i < nb_nics1; i++) {
- isa_ne2000_init(ne2000_io[i], ne2000_irq[i], &nd_table[i]);
+ }
+
+ for(i = 0; i < nb_nics; i++) {
+ nd = &nd_table[i];
+ if (!nd->model) {
+ if (pci_enabled) {
+ nd->model = "ne2k_pci";
+ } else {
+ nd->model = "ne2k_isa";
+ }
+ }
+ if (strcmp(nd->model, "ne2k_isa") == 0) {
+ pc_init_ne2k_isa(nd);
+ } else if (pci_enabled) {
+ pci_nic_init(pci_bus, nd, -1);
+ } else {
+ fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd->model);
+ exit(1);
}
+ }
+ if (pci_enabled) {
+ pci_piix3_ide_init(pci_bus, bs_table, piix3_devfn + 1);
+ } else {
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]);
kbd_init();
DMA_init(0);
-
-#ifndef _WIN32
- if (audio_enabled) {
- /* no audio supported yet for win32 */
- AUD_init();
- SB16_init();
- }
+#ifdef HAS_AUDIO
+ audio_init(pci_enabled ? pci_bus : NULL);
#endif
floppy_controller = fdctrl_init(6, 2, 0, 0x3f0, fd_table);
- cmos_init(ram_size, boot_device);
+ cmos_init(ram_size, boot_device, bs_table);
- /* must be done after all PCI devices are instanciated */
- /* XXX: should be done in the Bochs BIOS */
+ if (pci_enabled && usb_enabled) {
+ usb_uhci_init(pci_bus, piix3_devfn + 2);
+ }
+
+ if (pci_enabled && acpi_enabled) {
+ uint8_t *eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */
+ piix4_pm_init(pci_bus, piix3_devfn + 3);
+ for (i = 0; i < 8; i++) {
+ SMBusDevice *eeprom = smbus_eeprom_device_init(0x50 + i,
+ eeprom_buf + (i * 256));
+ piix4_smbus_register_device(eeprom, 0x50 + i);
+ }
+ }
+
+ if (i440fx_state) {
+ i440fx_init_memory_mappings(i440fx_state);
+ }
+#if 0
+ /* ??? Need to figure out some way for the user to
+ specify SCSI devices. */
if (pci_enabled) {
- pci_bios_init();
+ void *scsi;
+ BlockDriverState *bdrv;
+
+ scsi = lsi_scsi_init(pci_bus, -1);
+ bdrv = bdrv_new("scsidisk");
+ bdrv_open(bdrv, "scsi_disk.img", 0);
+ lsi_scsi_attach(scsi, bdrv, -1);
+ bdrv = bdrv_new("scsicd");
+ bdrv_open(bdrv, "scsi_cd.iso", 0);
+ bdrv_set_type_hint(bdrv, BDRV_TYPE_CDROM);
+ lsi_scsi_attach(scsi, bdrv, -1);
}
+#endif
}
+
+static void pc_init_pci(int ram_size, int vga_ram_size, int boot_device,
+ DisplayState *ds, const char **fd_filename,
+ int snapshot,
+ const char *kernel_filename,
+ const char *kernel_cmdline,
+ const char *initrd_filename,
+ const char *cpu_model)
+{
+ pc_init1(ram_size, vga_ram_size, boot_device,
+ ds, fd_filename, snapshot,
+ kernel_filename, kernel_cmdline,
+ initrd_filename, 1);
+}
+
+static void pc_init_isa(int ram_size, int vga_ram_size, int boot_device,
+ DisplayState *ds, const char **fd_filename,
+ int snapshot,
+ const char *kernel_filename,
+ const char *kernel_cmdline,
+ const char *initrd_filename,
+ const char *cpu_model)
+{
+ pc_init1(ram_size, vga_ram_size, boot_device,
+ ds, fd_filename, snapshot,
+ kernel_filename, kernel_cmdline,
+ initrd_filename, 0);
+}
+
+QEMUMachine pc_machine = {
+ "pc",
+ "Standard PC",
+ pc_init_pci,
+};
+
+QEMUMachine isapc_machine = {
+ "isapc",
+ "ISA-only PC",
+ pc_init_isa,
+};
projects / qemu.git / blobdiff