Archipelago » qemu

/*

 * QEMU PowerPC CHRP (currently NewWorld PowerMac) 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.

 *

 * PCI bus layout on a real G5 (U3 based):

 *

 * 0000:f0:0b.0 Host bridge [0600]: Apple Computer Inc. U3 AGP [106b:004b]

 * 0000:f0:10.0 VGA compatible controller [0300]: ATI Technologies Inc RV350 AP [Radeon 9600] [1002:4150]

 * 0001:00:00.0 Host bridge [0600]: Apple Computer Inc. CPC945 HT Bridge [106b:004a]

 * 0001:00:01.0 PCI bridge [0604]: Advanced Micro Devices [AMD] AMD-8131 PCI-X Bridge [1022:7450] (rev 12)

 * 0001:00:02.0 PCI bridge [0604]: Advanced Micro Devices [AMD] AMD-8131 PCI-X Bridge [1022:7450] (rev 12)

 * 0001:00:03.0 PCI bridge [0604]: Apple Computer Inc. K2 HT-PCI Bridge [106b:0045]

 * 0001:00:04.0 PCI bridge [0604]: Apple Computer Inc. K2 HT-PCI Bridge [106b:0046]

 * 0001:00:05.0 PCI bridge [0604]: Apple Computer Inc. K2 HT-PCI Bridge [106b:0047]

 * 0001:00:06.0 PCI bridge [0604]: Apple Computer Inc. K2 HT-PCI Bridge [106b:0048]

 * 0001:00:07.0 PCI bridge [0604]: Apple Computer Inc. K2 HT-PCI Bridge [106b:0049]

 * 0001:01:07.0 Class [ff00]: Apple Computer Inc. K2 KeyLargo Mac/IO [106b:0041] (rev 20)

 * 0001:01:08.0 USB Controller [0c03]: Apple Computer Inc. K2 KeyLargo USB [106b:0040]

 * 0001:01:09.0 USB Controller [0c03]: Apple Computer Inc. K2 KeyLargo USB [106b:0040]

 * 0001:02:0b.0 USB Controller [0c03]: NEC Corporation USB [1033:0035] (rev 43)

 * 0001:02:0b.1 USB Controller [0c03]: NEC Corporation USB [1033:0035] (rev 43)

 * 0001:02:0b.2 USB Controller [0c03]: NEC Corporation USB 2.0 [1033:00e0] (rev 04)

 * 0001:03:0d.0 Class [ff00]: Apple Computer Inc. K2 ATA/100 [106b:0043]

 * 0001:03:0e.0 FireWire (IEEE 1394) [0c00]: Apple Computer Inc. K2 FireWire [106b:0042]

 * 0001:04:0f.0 Ethernet controller [0200]: Apple Computer Inc. K2 GMAC (Sun GEM) [106b:004c]

 * 0001:05:0c.0 IDE interface [0101]: Broadcom K2 SATA [1166:0240]

 *

 */

#include "hw.h"

#include "ppc.h"

#include "ppc_mac.h"

#include "adb.h"

#include "mac_dbdma.h"

#include "nvram.h"

#include "pci.h"

#include "net.h"

#include "sysemu.h"

#include "boards.h"

#include "fw_cfg.h"

#include "escc.h"

#include "openpic.h"

#include "ide.h"

#include "loader.h"

#include "elf.h"

#include "kvm.h"

#include "kvm_ppc.h"

#include "hw/usb.h"

#include "blockdev.h"

#include "exec-memory.h"

#define MAX_IDE_BUS 2

#define CFG_ADDR 0xf0000510

/* debug UniNorth */

//#define DEBUG_UNIN

#ifdef DEBUG_UNIN

#define UNIN_DPRINTF(fmt, ...)                                  \

    do { printf("UNIN: " fmt , ## __VA_ARGS__); } while (0)

#else

#define UNIN_DPRINTF(fmt, ...)

#endif

/* UniN device */

static void unin_write(void *opaque, hwaddr addr, uint64_t value,

                       unsigned size)

{

    UNIN_DPRINTF("write addr " TARGET_FMT_plx " val %"PRIx64"\n", addr, value);

}

static uint64_t unin_read(void *opaque, hwaddr addr, unsigned size)

{

    uint32_t value;

    value = 0;

    UNIN_DPRINTF("readl addr " TARGET_FMT_plx " val %x\n", addr, value);

    return value;

}

static const MemoryRegionOps unin_ops = {

    .read = unin_read,

    .write = unin_write,

    .endianness = DEVICE_NATIVE_ENDIAN,

};

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 hwaddr round_page(hwaddr addr)

{

    return (addr + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK;

}

static void ppc_core99_reset(void *opaque)

{

    PowerPCCPU *cpu = opaque;

    cpu_reset(CPU(cpu));

}

/* PowerPC Mac99 hardware initialisation */

static void ppc_core99_init(QEMUMachineInitArgs *args)

{

    ram_addr_t ram_size = args->ram_size;

    const char *cpu_model = args->cpu_model;

    const char *kernel_filename = args->kernel_filename;

    const char *kernel_cmdline = args->kernel_cmdline;

    const char *initrd_filename = args->initrd_filename;

    const char *boot_device = args->boot_device;

    PowerPCCPU *cpu = NULL;

    CPUPPCState *env = NULL;

    char *filename;

    qemu_irq *pic, **openpic_irqs;

    MemoryRegion *unin_memory = g_new(MemoryRegion, 1);

    int linux_boot, i;

    MemoryRegion *ram = g_new(MemoryRegion, 1), *bios = g_new(MemoryRegion, 1);

    hwaddr kernel_base, initrd_base, cmdline_base = 0;

    long kernel_size, initrd_size;

    PCIBus *pci_bus;

    MacIONVRAMState *nvr;

    int bios_size;

    MemoryRegion *pic_mem, *dbdma_mem, *cuda_mem, *escc_mem;

    MemoryRegion *escc_bar = g_new(MemoryRegion, 1);

    MemoryRegion *ide_mem[3];

    int ppc_boot_device;

    DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];

    void *fw_cfg;

    void *dbdma;

    int machine_arch;

    linux_boot = (kernel_filename != NULL);

    /* init CPUs */

    if (cpu_model == NULL)

#ifdef TARGET_PPC64

        cpu_model = "970fx";

#else

        cpu_model = "G4";

#endif

    for (i = 0; i < smp_cpus; i++) {

        cpu = cpu_ppc_init(cpu_model);

        if (cpu == NULL) {

            fprintf(stderr, "Unable to find PowerPC CPU definition\n");

            exit(1);

        }

        env = &cpu->env;

        /* Set time-base frequency to 100 Mhz */

        cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL);

        qemu_register_reset(ppc_core99_reset, cpu);

    }

    /* allocate RAM */

    memory_region_init_ram(ram, "ppc_core99.ram", ram_size);

    vmstate_register_ram_global(ram);

    memory_region_add_subregion(get_system_memory(), 0, ram);

    /* allocate and load BIOS */

    memory_region_init_ram(bios, "ppc_core99.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(get_system_memory(), PROM_ADDR, bios);

    /* Load OpenBIOS (ELF) */

    if (filename) {

        bios_size = load_elf(filename, NULL, 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';

        /* We consider that NewWorld PowerMac never have any floppy drive

         * For now, OHW cannot boot from the network.

         */

        for (i = 0; boot_device[i] != '\0'; i++) {

            if (boot_device[i] >= 'c' && boot_device[i] <= 'f') {

                ppc_boot_device = boot_device[i];

                break;

            }

        }

        if (ppc_boot_device == '\0') {

            fprintf(stderr, "No valid boot device for Mac99 machine\n");

            exit(1);

        }

    }

    /* Register 8 MB of ISA IO space */

    isa_mmio_init(0xf2000000, 0x00800000);

    /* UniN init */

    memory_region_init_io(unin_memory, &unin_ops, NULL, "unin", 0x1000);

    memory_region_add_subregion(get_system_memory(), 0xf8000000, unin_memory);

    openpic_irqs = g_malloc0(smp_cpus * sizeof(qemu_irq *));

    openpic_irqs[0] =

        g_malloc0(smp_cpus * sizeof(qemu_irq) * OPENPIC_OUTPUT_NB);

    for (i = 0; i < smp_cpus; i++) {

        /* Mac99 IRQ connection between OpenPIC outputs pins

         * and PowerPC input pins

         */

        switch (PPC_INPUT(env)) {

        case PPC_FLAGS_INPUT_6xx:

            openpic_irqs[i] = openpic_irqs[0] + (i * OPENPIC_OUTPUT_NB);

            openpic_irqs[i][OPENPIC_OUTPUT_INT] =

                ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];

            openpic_irqs[i][OPENPIC_OUTPUT_CINT] =

                ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];

            openpic_irqs[i][OPENPIC_OUTPUT_MCK] =

                ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_MCP];

            /* Not connected ? */

            openpic_irqs[i][OPENPIC_OUTPUT_DEBUG] = NULL;

            /* Check this */

            openpic_irqs[i][OPENPIC_OUTPUT_RESET] =

                ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_HRESET];

            break;

#if defined(TARGET_PPC64)

        case PPC_FLAGS_INPUT_970:

            openpic_irqs[i] = openpic_irqs[0] + (i * OPENPIC_OUTPUT_NB);

            openpic_irqs[i][OPENPIC_OUTPUT_INT] =

                ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_INT];

            openpic_irqs[i][OPENPIC_OUTPUT_CINT] =

                ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_INT];

            openpic_irqs[i][OPENPIC_OUTPUT_MCK] =

                ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_MCP];

            /* Not connected ? */

            openpic_irqs[i][OPENPIC_OUTPUT_DEBUG] = NULL;

            /* Check this */

            openpic_irqs[i][OPENPIC_OUTPUT_RESET] =

                ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_HRESET];

            break;

#endif /* defined(TARGET_PPC64) */

        default:

            hw_error("Bus model not supported on mac99 machine\n");

            exit(1);

        }

    }

    pic = openpic_init(&pic_mem, smp_cpus, openpic_irqs, NULL);

    if (PPC_INPUT(env) == PPC_FLAGS_INPUT_970) {

        /* 970 gets a U3 bus */

        pci_bus = pci_pmac_u3_init(pic, get_system_memory(), get_system_io());

        machine_arch = ARCH_MAC99_U3;

    } else {

        pci_bus = pci_pmac_init(pic, get_system_memory(), get_system_io());

        machine_arch = ARCH_MAC99;

    }

    /* init basic PC hardware */

    pci_vga_init(pci_bus);

    escc_mem = escc_init(0, pic[0x25], pic[0x24],

                         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);

    dbdma = DBDMA_init(&dbdma_mem);

    /* We only emulate 2 out of 3 IDE controllers for now */

    ide_mem[0] = NULL;

    ide_mem[1] = pmac_ide_init(hd, pic[0x0d], dbdma, 0x16, pic[0x02]);

    ide_mem[2] = pmac_ide_init(&hd[MAX_IDE_DEVS], pic[0x0e], dbdma, 0x1a, pic[0x02]);

    /* cuda also initialize ADB */

    if (machine_arch == ARCH_MAC99_U3) {

        usb_enabled = 1;

    }

    cuda_init(&cuda_mem, pic[0x19]);

    adb_kbd_init(&adb_bus);

    adb_mouse_init(&adb_bus);

    macio_init(pci_bus, PCI_DEVICE_ID_APPLE_UNI_N_KEYL, 0, pic_mem,

               dbdma_mem, cuda_mem, NULL, 3, ide_mem, escc_bar);

    if (usb_enabled) {

        pci_create_simple(pci_bus, -1, "pci-ohci");

    }

    /* U3 needs to use USB for input because Linux doesn't support via-cuda

       on PPC64 */

    if (machine_arch == ARCH_MAC99_U3) {

        usbdevice_create("keyboard");

        usbdevice_create("mouse");

    }

    if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)

        graphic_depth = 15;

    /* The NewWorld NVRAM is not located in the MacIO device */

    nvr = macio_nvram_init(0x2000, 1);

    pmac_format_nvram_partition(nvr, 0x2000);

    macio_nvram_setup_bar(nvr, get_system_memory(), 0xFFF04000);

    /* 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, machine_arch);

    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 core99_machine = {

    .name = "mac99",

    .desc = "Mac99 based PowerMAC",

    .init = ppc_core99_init,

    .max_cpus = MAX_CPUS,

#ifdef TARGET_PPC64

    .is_default = 1,

#endif

};

static void core99_machine_init(void)

{

    qemu_register_machine(&core99_machine);

}

machine_init(core99_machine_init);