diff options
Diffstat (limited to 'qemu/hw/ppc/mac_oldworld.c')
| -rw-r--r-- | qemu/hw/ppc/mac_oldworld.c | 377 |
1 files changed, 377 insertions, 0 deletions
diff --git a/qemu/hw/ppc/mac_oldworld.c b/qemu/hw/ppc/mac_oldworld.c new file mode 100644 index 000000000..06fdbaf58 --- /dev/null +++ b/qemu/hw/ppc/mac_oldworld.c @@ -0,0 +1,377 @@ + +/* + * 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/hw.h" +#include "hw/ppc/ppc.h" +#include "mac.h" +#include "hw/input/adb.h" +#include "hw/timer/m48t59.h" +#include "sysemu/sysemu.h" +#include "net/net.h" +#include "hw/isa/isa.h" +#include "hw/pci/pci.h" +#include "hw/boards.h" +#include "hw/nvram/fw_cfg.h" +#include "hw/char/escc.h" +#include "hw/ide.h" +#include "hw/loader.h" +#include "elf.h" +#include "sysemu/kvm.h" +#include "kvm_ppc.h" +#include "sysemu/block-backend.h" +#include "exec/address-spaces.h" + +#define MAX_IDE_BUS 2 +#define CFG_ADDR 0xf0000510 +#define TBFREQ 16600000UL +#define CLOCKFREQ 266000000UL +#define BUSFREQ 66000000UL + +static void fw_cfg_boot_set(void *opaque, const char *boot_device, + Error **errp) +{ + fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]); +} + +static uint64_t translate_kernel_address(void *opaque, uint64_t addr) +{ + return (addr & 0x0fffffff) + KERNEL_LOAD_ADDR; +} + +static hwaddr round_page(hwaddr addr) +{ + return (addr + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK; +} + +static void ppc_heathrow_reset(void *opaque) +{ + PowerPCCPU *cpu = opaque; + + cpu_reset(CPU(cpu)); +} + +static void ppc_heathrow_init(MachineState *machine) +{ + ram_addr_t ram_size = machine->ram_size; + const char *kernel_filename = machine->kernel_filename; + const char *kernel_cmdline = machine->kernel_cmdline; + const char *initrd_filename = machine->initrd_filename; + const char *boot_device = machine->boot_order; + MemoryRegion *sysmem = get_system_memory(); + PowerPCCPU *cpu = NULL; + 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); + MemoryRegion *isa = g_new(MemoryRegion, 1); + uint32_t kernel_base, initrd_base, cmdline_base = 0; + int32_t kernel_size, initrd_size; + PCIBus *pci_bus; + PCIDevice *macio; + MACIOIDEState *macio_ide; + DeviceState *dev; + BusState *adb_bus; + int bios_size; + MemoryRegion *pic_mem; + MemoryRegion *escc_mem, *escc_bar = g_new(MemoryRegion, 1); + uint16_t ppc_boot_device; + DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; + void *fw_cfg; + uint64_t tbfreq; + + linux_boot = (kernel_filename != NULL); + + /* init CPUs */ + if (machine->cpu_model == NULL) + machine->cpu_model = "G3"; + for (i = 0; i < smp_cpus; i++) { + cpu = cpu_ppc_init(machine->cpu_model); + if (cpu == NULL) { + fprintf(stderr, "Unable to find PowerPC CPU definition\n"); + exit(1); + } + env = &cpu->env; + + /* Set time-base frequency to 16.6 Mhz */ + cpu_ppc_tb_init(env, TBFREQ); + qemu_register_reset(ppc_heathrow_reset, cpu); + } + + /* 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_allocate_system_memory(ram, NULL, "ppc_heathrow.ram", + ram_size); + memory_region_add_subregion(sysmem, 0, ram); + + /* allocate and load BIOS */ + memory_region_init_ram(bios, NULL, "ppc_heathrow.bios", BIOS_SIZE, + &error_abort); + 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 */ + memory_region_init_alias(isa, NULL, "isa_mmio", + get_system_io(), 0, 0x00200000); + memory_region_add_subregion(sysmem, 0xfe000000, isa); + + /* 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"); + } + } + + /* Timebase Frequency */ + if (kvm_enabled()) { + tbfreq = kvmppc_get_tbfreq(); + } else { + tbfreq = TBFREQ; + } + + /* 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, NULL, "escc-bar", + escc_mem, 0, memory_region_size(escc_mem)); + + for(i = 0; i < nb_nics; i++) + pci_nic_init_nofail(&nd_table[i], pci_bus, "ne2k_pci", NULL); + + + ide_drive_get(hd, ARRAY_SIZE(hd)); + + macio = pci_create(pci_bus, -1, TYPE_OLDWORLD_MACIO); + dev = DEVICE(macio); + qdev_connect_gpio_out(dev, 0, pic[0x12]); /* CUDA */ + qdev_connect_gpio_out(dev, 1, pic[0x0D]); /* IDE-0 */ + qdev_connect_gpio_out(dev, 2, pic[0x02]); /* IDE-0 DMA */ + qdev_connect_gpio_out(dev, 3, pic[0x0E]); /* IDE-1 */ + qdev_connect_gpio_out(dev, 4, pic[0x03]); /* IDE-1 DMA */ + qdev_prop_set_uint64(dev, "frequency", tbfreq); + macio_init(macio, pic_mem, escc_bar); + + macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio), + "ide[0]")); + macio_ide_init_drives(macio_ide, hd); + + macio_ide = MACIO_IDE(object_resolve_path_component(OBJECT(macio), + "ide[1]")); + macio_ide_init_drives(macio_ide, &hd[MAX_IDE_DEVS]); + + dev = DEVICE(object_resolve_path_component(OBJECT(macio), "cuda")); + adb_bus = qdev_get_child_bus(dev, "adb.0"); + dev = qdev_create(adb_bus, TYPE_ADB_KEYBOARD); + qdev_init_nofail(dev); + dev = qdev_create(adb_bus, TYPE_ADB_MOUSE); + qdev_init_nofail(dev); + + 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_mem(CFG_ADDR, CFG_ADDR + 2); + fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)max_cpus); + 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; + + 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 + } + fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_TBFREQ, tbfreq); + /* Mac OS X requires a "known good" clock-frequency value; pass it one. */ + fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_CLOCKFREQ, CLOCKFREQ); + fw_cfg_add_i32(fw_cfg, FW_CFG_PPC_BUSFREQ, BUSFREQ); + + qemu_register_boot_set(fw_cfg_boot_set, fw_cfg); +} + +static int heathrow_kvm_type(const char *arg) +{ + /* Always force PR KVM */ + return 2; +} + +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 + .default_boot_order = "cd", /* TOFIX "cad" when Mac floppy is implemented */ + .kvm_type = heathrow_kvm_type, +}; + +static void heathrow_machine_init(void) +{ + qemu_register_machine(&heathrow_machine); +} + +machine_init(heathrow_machine_init); |