diff options
Diffstat (limited to 'hw/pc.c')
| -rw-r--r-- | hw/pc.c | 198 |
1 files changed, 135 insertions, 63 deletions
@@ -21,7 +21,17 @@ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ -#include "vl.h" +#include "hw.h" +#include "pc.h" +#include "fdc.h" +#include "pci.h" +#include "block.h" +#include "sysemu.h" +#include "audio/audio.h" +#include "net.h" +#include "smbus.h" +#include "boards.h" + #ifdef USE_KVM #include "qemu-kvm.h" extern int kvm_allowed; @@ -37,6 +47,8 @@ extern int kvm_allowed; /* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables. */ #define ACPI_DATA_SIZE 0x10000 +#define MAX_IDE_BUS 2 + static fdctrl_t *floppy_controller; static RTCState *rtc_state; static PITState *pit; @@ -156,10 +168,30 @@ static void cmos_init_hd(int type_ofs, int info_ofs, BlockDriverState *hd) rtc_set_memory(s, info_ofs + 8, sectors); } +/* convert boot_device letter to something recognizable by the bios */ +static int boot_device2nibble(char boot_device) +{ + switch(boot_device) { + case 'a': + case 'b': + return 0x01; /* floppy boot */ + case 'c': + return 0x02; /* hard drive boot */ + case 'd': + return 0x03; /* CD-ROM boot */ + case 'n': + return 0x04; /* Network boot */ + } + return 0; +} + /* hd_table must contain 4 block drivers */ -static void cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size, int boot_device, BlockDriverState **hd_table, int smp_cpus) +static void cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size, + const char *boot_device, BlockDriverState **hd_table, + int smp_cpus) { RTCState *s = rtc_state; + int nbds, bds[3] = { 0, }; int val; int fd0, fd1, nb; int i; @@ -195,24 +227,23 @@ static void cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size, int boo rtc_set_memory(s, 0x34, val); rtc_set_memory(s, 0x35, val >> 8); - switch(boot_device) { - 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': - rtc_set_memory(s, 0x3d, 0x02); /* hard drive boot */ - break; - case 'd': - rtc_set_memory(s, 0x3d, 0x03); /* CD-ROM boot */ - break; - case 'n': - rtc_set_memory(s, 0x3d, 0x04); /* Network boot */ - break; + /* set boot devices, and disable floppy signature check if requested */ +#define PC_MAX_BOOT_DEVICES 3 + nbds = strlen(boot_device); + if (nbds > PC_MAX_BOOT_DEVICES) { + fprintf(stderr, "Too many boot devices for PC\n"); + exit(1); } + for (i = 0; i < nbds; i++) { + bds[i] = boot_device2nibble(boot_device[i]); + if (bds[i] == 0) { + fprintf(stderr, "Invalid boot device for PC: '%c'\n", + boot_device[i]); + exit(1); + } + } + rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]); + rtc_set_memory(s, 0x38, (bds[2] << 4) | (fd_bootchk ? 0x0 : 0x1)); /* floppy type */ @@ -302,7 +333,7 @@ static uint32_t ioport92_read(void *opaque, uint32_t addr) /***********************************************************/ /* Bochs BIOS debug ports */ -void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val) +static void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val) { static const char shutdown_str[8] = "Shutdown"; static int shutdown_index = 0; @@ -346,7 +377,7 @@ void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val) } } -void bochs_bios_init(void) +static void bochs_bios_init(void) { register_ioport_write(0x400, 1, 2, bochs_bios_write, NULL); register_ioport_write(0x401, 1, 2, bochs_bios_write, NULL); @@ -366,8 +397,10 @@ static void generate_bootsect(uint32_t gpr[8], uint16_t segs[6], uint16_t ip) { uint8_t bootsect[512], *p; int i; + int hda; - if (bs_table[0] == NULL) { + hda = drive_get_index(IF_IDE, 0, 0); + if (hda == -1) { fprintf(stderr, "A disk image must be given for 'hda' when booting " "a Linux kernel\n"); exit(1); @@ -376,7 +409,7 @@ static void generate_bootsect(uint32_t gpr[8], uint16_t segs[6], uint16_t ip) memset(bootsect, 0, sizeof(bootsect)); /* Copy the MSDOS partition table if possible */ - bdrv_read(bs_table[0], 0, bootsect, 1); + bdrv_read(drives_table[hda].bdrv, 0, bootsect, 1); /* Make sure we have a partition signature */ bootsect[510] = 0x55; @@ -413,11 +446,11 @@ static void generate_bootsect(uint32_t gpr[8], uint16_t segs[6], uint16_t ip) *p++ = segs[1]; /* CS */ *p++ = segs[1] >> 8; - bdrv_set_boot_sector(bs_table[0], bootsect, sizeof(bootsect)); + bdrv_set_boot_sector(drives_table[hda].bdrv, bootsect, sizeof(bootsect)); } -int load_kernel(const char *filename, uint8_t *addr, - uint8_t *real_addr) +static int load_kernel(const char *filename, uint8_t *addr, + uint8_t *real_addr) { int fd, size; int setup_sects; @@ -488,7 +521,9 @@ static void load_linux(const char *kernel_filename, } /* kernel protocol version */ +#if 0 fprintf(stderr, "header magic: %#x\n", ldl_p(header+0x202)); +#endif if (ldl_p(header+0x202) == 0x53726448) protocol = lduw_p(header+0x206); else @@ -511,6 +546,7 @@ static void load_linux(const char *kernel_filename, prot_addr = phys_ram_base + 0x100000; } +#if 0 fprintf(stderr, "qemu: real_addr = %#zx\n" "qemu: cmdline_addr = %#zx\n" @@ -518,6 +554,7 @@ static void load_linux(const char *kernel_filename, real_addr-phys_ram_base, cmdline_addr-phys_ram_base, prot_addr-phys_ram_base); +#endif /* highest address for loading the initrd */ if (protocol >= 0x203) @@ -529,7 +566,7 @@ static void load_linux(const char *kernel_filename, initrd_max = ram_size-ACPI_DATA_SIZE-1; /* kernel command line */ - pstrcpy(cmdline_addr, 4096, kernel_cmdline); + pstrcpy((char*)cmdline_addr, 4096, kernel_cmdline); if (protocol >= 0x202) { stl_p(header+0x228, cmdline_addr-phys_ram_base); @@ -679,11 +716,11 @@ extern int kvm_allowed; #endif /* PC hardware initialisation */ -static void pc_init1(ram_addr_t ram_size, int vga_ram_size, int boot_device, - DisplayState *ds, const char **fd_filename, int snapshot, +static void pc_init1(ram_addr_t ram_size, int vga_ram_size, + const char *boot_device, DisplayState *ds, const char *kernel_filename, const char *kernel_cmdline, const char *initrd_filename, - int pci_enabled) + int pci_enabled, const char *cpu_model) { char buf[1024]; int ret, linux_boot, i; @@ -696,6 +733,9 @@ static void pc_init1(ram_addr_t ram_size, int vga_ram_size, int boot_device, NICInfo *nd; qemu_irq *cpu_irq; qemu_irq *i8259; + int index; + BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; + BlockDriverState *fd[MAX_FD]; if (ram_size >= 0xe0000000 ) { above_4g_mem_size = ram_size - 0xe0000000; @@ -705,8 +745,20 @@ static void pc_init1(ram_addr_t ram_size, int vga_ram_size, int boot_device, linux_boot = (kernel_filename != NULL); /* init CPUs */ + if (cpu_model == NULL) { +#ifdef TARGET_X86_64 + cpu_model = "qemu64"; +#else + cpu_model = "qemu32"; +#endif + } + for(i = 0; i < smp_cpus; i++) { - env = cpu_init(); + env = cpu_init(cpu_model); + if (!env) { + fprintf(stderr, "Unable to find x86 CPU definition\n"); + exit(1); + } if (i != 0) env->hflags |= HF_HALTED_MASK; if (smp_cpus > 1) { @@ -745,7 +797,9 @@ static void pc_init1(ram_addr_t ram_size, int vga_ram_size, int boot_device, vga_ram_addr = qemu_ram_alloc(vga_ram_size); /* BIOS load */ - snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME); + if (bios_name == NULL) + bios_name = BIOS_FILENAME; + snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name); bios_size = get_image_size(buf); if (bios_size <= 0 || (bios_size % 65536) != 0) { @@ -973,12 +1027,26 @@ static void pc_init1(ram_addr_t ram_size, int vga_ram_size, int boot_device, #ifdef USE_HYPERCALL pci_hypercall_init(pci_bus); #endif + + 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; + } + if (pci_enabled) { - pci_piix3_ide_init(pci_bus, bs_table, piix3_devfn + 1, i8259); + pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1, i8259); } else { - for(i = 0; i < 2; i++) { + for(i = 0; i < MAX_IDE_BUS; i++) { isa_ide_init(ide_iobase[i], ide_iobase2[i], i8259[ide_irq[i]], - bs_table[2 * i], bs_table[2 * i + 1]); + hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]); } } @@ -988,9 +1056,16 @@ static void pc_init1(ram_addr_t ram_size, int vga_ram_size, int boot_device, audio_init(pci_enabled ? pci_bus : NULL, i8259); #endif - floppy_controller = fdctrl_init(i8259[6], 2, 0, 0x3f0, fd_table); + for(i = 0; i < MAX_FD; i++) { + index = drive_get_index(IF_FLOPPY, 0, i); + if (index != -1) + fd[i] = drives_table[index].bdrv; + else + fd[i] = NULL; + } + floppy_controller = fdctrl_init(i8259[6], 2, 0, 0x3f0, fd); - cmos_init(ram_size, above_4g_mem_size, boot_device, bs_table, smp_cpus); + cmos_init(ram_size, above_4g_mem_size, boot_device, hd, smp_cpus); if (pci_enabled && usb_enabled) { usb_uhci_piix3_init(pci_bus, piix3_devfn + 2); @@ -1010,51 +1085,48 @@ static void pc_init1(ram_addr_t ram_size, int vga_ram_size, int boot_device, 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) { + int max_bus; + int bus, unit; 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); + + max_bus = drive_get_max_bus(IF_SCSI); + + for (bus = 0; bus <= max_bus; bus++) { + scsi = lsi_scsi_init(pci_bus, -1); + for (unit = 0; unit < LSI_MAX_DEVS; unit++) { + index = drive_get_index(IF_SCSI, bus, unit); + if (index == -1) + continue; + lsi_scsi_attach(scsi, drives_table[index].bdrv, unit); + } + } } -#endif } -static void pc_init_pci(ram_addr_t ram_size, int vga_ram_size, int boot_device, - DisplayState *ds, const char **fd_filename, - int snapshot, +static void pc_init_pci(ram_addr_t 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 *cpu_model) { - pc_init1(ram_size, vga_ram_size, boot_device, - ds, fd_filename, snapshot, + pc_init1(ram_size, vga_ram_size, boot_device, ds, kernel_filename, kernel_cmdline, - initrd_filename, 1); + initrd_filename, 1, cpu_model); } -static void pc_init_isa(ram_addr_t ram_size, int vga_ram_size, int boot_device, - DisplayState *ds, const char **fd_filename, - int snapshot, +static void pc_init_isa(ram_addr_t 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 *cpu_model) { - pc_init1(ram_size, vga_ram_size, boot_device, - ds, fd_filename, snapshot, + pc_init1(ram_size, vga_ram_size, boot_device, ds, kernel_filename, kernel_cmdline, - initrd_filename, 0); + initrd_filename, 0, cpu_model); } QEMUMachine pc_machine = { |