| |
| /* |
| * QEMU OldWorld PowerMac (currently ~G3 Beige) hardware System Emulator |
| * |
| * Copyright (c) 2004-2007 Fabrice Bellard |
| * Copyright (c) 2007 Jocelyn Mayer |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| #include "hw.h" |
| #include "ppc.h" |
| #include "ppc_mac.h" |
| #include "adb.h" |
| #include "mac_dbdma.h" |
| #include "nvram.h" |
| #include "pc.h" |
| #include "sysemu.h" |
| #include "net.h" |
| #include "isa.h" |
| #include "pci.h" |
| #include "boards.h" |
| #include "fw_cfg.h" |
| #include "escc.h" |
| #include "ide.h" |
| #include "loader.h" |
| #include "elf.h" |
| #include "kvm.h" |
| #include "kvm_ppc.h" |
| #include "blockdev.h" |
| #include "exec-memory.h" |
| |
| #define MAX_IDE_BUS 2 |
| #define CFG_ADDR 0xf0000510 |
| |
| static int fw_cfg_boot_set(void *opaque, const char *boot_device) |
| { |
| fw_cfg_add_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]); |
| return 0; |
| } |
| |
| |
| static uint64_t translate_kernel_address(void *opaque, uint64_t addr) |
| { |
| return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR; |
| } |
| |
| static target_phys_addr_t round_page(target_phys_addr_t addr) |
| { |
| return (addr + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK; |
| } |
| |
| static void ppc_heathrow_reset(void *opaque) |
| { |
| CPUPPCState *env = opaque; |
| |
| cpu_state_reset(env); |
| } |
| |
| static void ppc_heathrow_init (ram_addr_t ram_size, |
| const char *boot_device, |
| const char *kernel_filename, |
| const char *kernel_cmdline, |
| const char *initrd_filename, |
| const char *cpu_model) |
| { |
| MemoryRegion *sysmem = get_system_memory(); |
| CPUPPCState *env = NULL; |
| char *filename; |
| qemu_irq *pic, **heathrow_irqs; |
| int linux_boot, i; |
| MemoryRegion *ram = g_new(MemoryRegion, 1); |
| MemoryRegion *bios = g_new(MemoryRegion, 1); |
| uint32_t kernel_base, initrd_base, cmdline_base = 0; |
| int32_t kernel_size, initrd_size; |
| PCIBus *pci_bus; |
| MacIONVRAMState *nvr; |
| int bios_size; |
| MemoryRegion *pic_mem, *dbdma_mem, *cuda_mem; |
| MemoryRegion *escc_mem, *escc_bar = g_new(MemoryRegion, 1), *ide_mem[2]; |
| uint16_t ppc_boot_device; |
| DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; |
| void *fw_cfg; |
| void *dbdma; |
| |
| linux_boot = (kernel_filename != NULL); |
| |
| /* init CPUs */ |
| if (cpu_model == NULL) |
| cpu_model = "G3"; |
| for (i = 0; i < smp_cpus; i++) { |
| env = cpu_init(cpu_model); |
| if (!env) { |
| fprintf(stderr, "Unable to find PowerPC CPU definition\n"); |
| exit(1); |
| } |
| /* Set time-base frequency to 16.6 Mhz */ |
| cpu_ppc_tb_init(env, 16600000UL); |
| qemu_register_reset(ppc_heathrow_reset, env); |
| } |
| |
| /* allocate RAM */ |
| if (ram_size > (2047 << 20)) { |
| fprintf(stderr, |
| "qemu: Too much memory for this machine: %d MB, maximum 2047 MB\n", |
| ((unsigned int)ram_size / (1 << 20))); |
| exit(1); |
| } |
| |
| memory_region_init_ram(ram, "ppc_heathrow.ram", ram_size); |
| vmstate_register_ram_global(ram); |
| memory_region_add_subregion(sysmem, 0, ram); |
| |
| /* allocate and load BIOS */ |
| memory_region_init_ram(bios, "ppc_heathrow.bios", BIOS_SIZE); |
| vmstate_register_ram_global(bios); |
| if (bios_name == NULL) |
| bios_name = PROM_FILENAME; |
| filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); |
| memory_region_set_readonly(bios, true); |
| memory_region_add_subregion(sysmem, PROM_ADDR, bios); |
| |
| /* Load OpenBIOS (ELF) */ |
| if (filename) { |
| bios_size = load_elf(filename, 0, NULL, NULL, NULL, NULL, |
| 1, ELF_MACHINE, 0); |
| g_free(filename); |
| } else { |
| bios_size = -1; |
| } |
| if (bios_size < 0 || bios_size > BIOS_SIZE) { |
| hw_error("qemu: could not load PowerPC bios '%s'\n", bios_name); |
| exit(1); |
| } |
| |
| if (linux_boot) { |
| uint64_t lowaddr = 0; |
| int bswap_needed; |
| |
| #ifdef BSWAP_NEEDED |
| bswap_needed = 1; |
| #else |
| bswap_needed = 0; |
| #endif |
| kernel_base = KERNEL_LOAD_ADDR; |
| kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL, |
| NULL, &lowaddr, NULL, 1, ELF_MACHINE, 0); |
| if (kernel_size < 0) |
| kernel_size = load_aout(kernel_filename, kernel_base, |
| ram_size - kernel_base, bswap_needed, |
| TARGET_PAGE_SIZE); |
| if (kernel_size < 0) |
| kernel_size = load_image_targphys(kernel_filename, |
| kernel_base, |
| ram_size - kernel_base); |
| if (kernel_size < 0) { |
| hw_error("qemu: could not load kernel '%s'\n", |
| kernel_filename); |
| exit(1); |
| } |
| /* load initrd */ |
| if (initrd_filename) { |
| initrd_base = round_page(kernel_base + kernel_size + KERNEL_GAP); |
| initrd_size = load_image_targphys(initrd_filename, initrd_base, |
| ram_size - initrd_base); |
| if (initrd_size < 0) { |
| hw_error("qemu: could not load initial ram disk '%s'\n", |
| initrd_filename); |
| exit(1); |
| } |
| cmdline_base = round_page(initrd_base + initrd_size); |
| } else { |
| initrd_base = 0; |
| initrd_size = 0; |
| cmdline_base = round_page(kernel_base + kernel_size + KERNEL_GAP); |
| } |
| ppc_boot_device = 'm'; |
| } else { |
| kernel_base = 0; |
| kernel_size = 0; |
| initrd_base = 0; |
| initrd_size = 0; |
| ppc_boot_device = '\0'; |
| for (i = 0; boot_device[i] != '\0'; i++) { |
| /* TOFIX: for now, the second IDE channel is not properly |
| * used by OHW. The Mac floppy disk are not emulated. |
| * For now, OHW cannot boot from the network. |
| */ |
| #if 0 |
| if (boot_device[i] >= 'a' && boot_device[i] <= 'f') { |
| ppc_boot_device = boot_device[i]; |
| break; |
| } |
| #else |
| if (boot_device[i] >= 'c' && boot_device[i] <= 'd') { |
| ppc_boot_device = boot_device[i]; |
| break; |
| } |
| #endif |
| } |
| if (ppc_boot_device == '\0') { |
| fprintf(stderr, "No valid boot device for G3 Beige machine\n"); |
| exit(1); |
| } |
| } |
| |
| /* Register 2 MB of ISA IO space */ |
| isa_mmio_init(0xfe000000, 0x00200000); |
| |
| /* XXX: we register only 1 output pin for heathrow PIC */ |
| heathrow_irqs = g_malloc0(smp_cpus * sizeof(qemu_irq *)); |
| heathrow_irqs[0] = |
| g_malloc0(smp_cpus * sizeof(qemu_irq) * 1); |
| /* Connect the heathrow PIC outputs to the 6xx bus */ |
| for (i = 0; i < smp_cpus; i++) { |
| switch (PPC_INPUT(env)) { |
| case PPC_FLAGS_INPUT_6xx: |
| heathrow_irqs[i] = heathrow_irqs[0] + (i * 1); |
| heathrow_irqs[i][0] = |
| ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT]; |
| break; |
| default: |
| hw_error("Bus model not supported on OldWorld Mac machine\n"); |
| } |
| } |
| |
| /* init basic PC hardware */ |
| if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) { |
| hw_error("Only 6xx bus is supported on heathrow machine\n"); |
| } |
| pic = heathrow_pic_init(&pic_mem, 1, heathrow_irqs); |
| pci_bus = pci_grackle_init(0xfec00000, pic, |
| get_system_memory(), |
| get_system_io()); |
| pci_vga_init(pci_bus); |
| |
| escc_mem = escc_init(0, pic[0x0f], pic[0x10], serial_hds[0], |
| serial_hds[1], ESCC_CLOCK, 4); |
| memory_region_init_alias(escc_bar, "escc-bar", |
| escc_mem, 0, memory_region_size(escc_mem)); |
| |
| for(i = 0; i < nb_nics; i++) |
| pci_nic_init_nofail(&nd_table[i], "ne2k_pci", NULL); |
| |
| |
| ide_drive_get(hd, MAX_IDE_BUS); |
| |
| /* First IDE channel is a MAC IDE on the MacIO bus */ |
| dbdma = DBDMA_init(&dbdma_mem); |
| ide_mem[0] = NULL; |
| ide_mem[1] = pmac_ide_init(hd, pic[0x0D], dbdma, 0x16, pic[0x02]); |
| |
| /* Second IDE channel is a CMD646 on the PCI bus */ |
| hd[0] = hd[MAX_IDE_DEVS]; |
| hd[1] = hd[MAX_IDE_DEVS + 1]; |
| hd[3] = hd[2] = NULL; |
| pci_cmd646_ide_init(pci_bus, hd, 0); |
| |
| /* cuda also initialize ADB */ |
| cuda_init(&cuda_mem, pic[0x12]); |
| |
| adb_kbd_init(&adb_bus); |
| adb_mouse_init(&adb_bus); |
| |
| nvr = macio_nvram_init(0x2000, 4); |
| pmac_format_nvram_partition(nvr, 0x2000); |
| |
| macio_init(pci_bus, PCI_DEVICE_ID_APPLE_343S1201, 1, pic_mem, |
| dbdma_mem, cuda_mem, nvr, 2, ide_mem, escc_bar); |
| |
| if (usb_enabled) { |
| pci_create_simple(pci_bus, -1, "pci-ohci"); |
| } |
| |
| if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8) |
| graphic_depth = 15; |
| |
| /* No PCI init: the BIOS will do it */ |
| |
| fw_cfg = fw_cfg_init(0, 0, CFG_ADDR, CFG_ADDR + 2); |
| fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1); |
| fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size); |
| fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW); |
| fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base); |
| fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size); |
| if (kernel_cmdline) { |
| fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, cmdline_base); |
| pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, kernel_cmdline); |
| } else { |
| fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0); |
| } |
| fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base); |
| fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size); |
| fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device); |
| |
| fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width); |
| fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height); |
| fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth); |
| |
| fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_IS_KVM, kvm_enabled()); |
| if (kvm_enabled()) { |
| #ifdef CONFIG_KVM |
| uint8_t *hypercall; |
| |
| fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, kvmppc_get_tbfreq()); |
| hypercall = g_malloc(16); |
| kvmppc_get_hypercall(env, hypercall, 16); |
| fw_cfg_add_bytes(fw_cfg, FW_CFG_PPC_KVM_HC, hypercall, 16); |
| fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_KVM_PID, getpid()); |
| #endif |
| } else { |
| fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, get_ticks_per_sec()); |
| } |
| |
| qemu_register_boot_set(fw_cfg_boot_set, fw_cfg); |
| } |
| |
| static QEMUMachine heathrow_machine = { |
| .name = "g3beige", |
| .desc = "Heathrow based PowerMAC", |
| .init = ppc_heathrow_init, |
| .max_cpus = MAX_CPUS, |
| #ifndef TARGET_PPC64 |
| .is_default = 1, |
| #endif |
| }; |
| |
| static void heathrow_machine_init(void) |
| { |
| qemu_register_machine(&heathrow_machine); |
| } |
| |
| machine_init(heathrow_machine_init); |
