[mirror_qemu.git] / hw / hppa / machine.c

/*
 * QEMU HPPA hardware system emulator.
 * Copyright 2018 Helge Deller <deller@gmx.de>
 */

#include "qemu/osdep.h"
#include "qemu-common.h"
#include "cpu.h"
#include "elf.h"
#include "hw/loader.h"
#include "hw/boards.h"
#include "qemu/error-report.h"
#include "sysemu/reset.h"
#include "sysemu/sysemu.h"
#include "hw/rtc/mc146818rtc.h"
#include "hw/timer/i8254.h"
#include "hw/char/serial.h"
#include "hw/net/lasi_82596.h"
#include "hppa_sys.h"
#include "qemu/units.h"
#include "qapi/error.h"
#include "net/net.h"
#include "qemu/log.h"
#include "net/net.h"

#define MAX_IDE_BUS 2

#define MIN_SEABIOS_HPPA_VERSION 1 /* require at least this fw version */

static ISABus *hppa_isa_bus(void)
{
    ISABus *isa_bus;
    qemu_irq *isa_irqs;
    MemoryRegion *isa_region;

    isa_region = g_new(MemoryRegion, 1);
    memory_region_init_io(isa_region, NULL, &hppa_pci_ignore_ops,
                          NULL, "isa-io", 0x800);
    memory_region_add_subregion(get_system_memory(), IDE_HPA,
                                isa_region);

    isa_bus = isa_bus_new(NULL, get_system_memory(), isa_region,
                          &error_abort);
    isa_irqs = i8259_init(isa_bus,
                          /* qemu_allocate_irq(dino_set_isa_irq, s, 0)); */
                          NULL);
    isa_bus_irqs(isa_bus, isa_irqs);

    return isa_bus;
}

static uint64_t cpu_hppa_to_phys(void *opaque, uint64_t addr)
{
    addr &= (0x10000000 - 1);
    return addr;
}

static HPPACPU *cpu[HPPA_MAX_CPUS];
static uint64_t firmware_entry;

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 FWCfgState *create_fw_cfg(MachineState *ms)
{
    FWCfgState *fw_cfg;
    uint64_t val;

    fw_cfg = fw_cfg_init_mem(FW_CFG_IO_BASE, FW_CFG_IO_BASE + 4);
    fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, ms->smp.cpus);
    fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, HPPA_MAX_CPUS);
    fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, ram_size);

    val = cpu_to_le64(MIN_SEABIOS_HPPA_VERSION);
    fw_cfg_add_file(fw_cfg, "/etc/firmware-min-version",
                    g_memdup(&val, sizeof(val)), sizeof(val));

    val = cpu_to_le64(HPPA_TLB_ENTRIES);
    fw_cfg_add_file(fw_cfg, "/etc/cpu/tlb_entries",
                    g_memdup(&val, sizeof(val)), sizeof(val));

    val = cpu_to_le64(HPPA_BTLB_ENTRIES);
    fw_cfg_add_file(fw_cfg, "/etc/cpu/btlb_entries",
                    g_memdup(&val, sizeof(val)), sizeof(val));

    fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ms->boot_order[0]);
    qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);

    return fw_cfg;
}

static void machine_hppa_init(MachineState *machine)
{
    const char *kernel_filename = machine->kernel_filename;
    const char *kernel_cmdline = machine->kernel_cmdline;
    const char *initrd_filename = machine->initrd_filename;
    DeviceState *dev;
    PCIBus *pci_bus;
    ISABus *isa_bus;
    qemu_irq rtc_irq, serial_irq;
    char *firmware_filename;
    uint64_t firmware_low, firmware_high;
    long size;
    uint64_t kernel_entry = 0, kernel_low, kernel_high;
    MemoryRegion *addr_space = get_system_memory();
    MemoryRegion *rom_region;
    MemoryRegion *cpu_region;
    long i;
    unsigned int smp_cpus = machine->smp.cpus;
    SysBusDevice *s;

    /* Create CPUs.  */
    for (i = 0; i < smp_cpus; i++) {
        char *name = g_strdup_printf("cpu%ld-io-eir", i);
        cpu[i] = HPPA_CPU(cpu_create(machine->cpu_type));

        cpu_region = g_new(MemoryRegion, 1);
        memory_region_init_io(cpu_region, OBJECT(cpu[i]), &hppa_io_eir_ops,
                              cpu[i], name, 4);
        memory_region_add_subregion(addr_space, CPU_HPA + i * 0x1000,
                                    cpu_region);
        g_free(name);
    }

    /* Main memory region. */
    if (machine->ram_size > 3 * GiB) {
        error_report("RAM size is currently restricted to 3GB");
        exit(EXIT_FAILURE);
    }
    memory_region_add_subregion_overlap(addr_space, 0, machine->ram, -1);


    /* Init Lasi chip */
    lasi_init(addr_space);

    /* Init Dino (PCI host bus chip).  */
    pci_bus = dino_init(addr_space, &rtc_irq, &serial_irq);
    assert(pci_bus);

    /* Create ISA bus. */
    isa_bus = hppa_isa_bus();
    assert(isa_bus);

    /* Realtime clock, used by firmware for PDC_TOD call. */
    mc146818_rtc_init(isa_bus, 2000, rtc_irq);

    /* Serial code setup.  */
    if (serial_hd(0)) {
        uint32_t addr = DINO_UART_HPA + 0x800;
        serial_mm_init(addr_space, addr, 0, serial_irq,
                       115200, serial_hd(0), DEVICE_BIG_ENDIAN);
    }

    /* fw_cfg configuration interface */
    create_fw_cfg(machine);

    /* SCSI disk setup. */
    dev = DEVICE(pci_create_simple(pci_bus, -1, "lsi53c895a"));
    lsi53c8xx_handle_legacy_cmdline(dev);

    /* Graphics setup. */
    if (machine->enable_graphics && vga_interface_type != VGA_NONE) {
        dev = qdev_new("artist");
        s = SYS_BUS_DEVICE(dev);
        sysbus_realize_and_unref(s, &error_fatal);
        sysbus_mmio_map(s, 0, LASI_GFX_HPA);
        sysbus_mmio_map(s, 1, ARTIST_FB_ADDR);
    }

    /* Network setup. */
    for (i = 0; i < nb_nics; i++) {
        if (!enable_lasi_lan()) {
            pci_nic_init_nofail(&nd_table[i], pci_bus, "tulip", NULL);
        }
    }

    /* Load firmware.  Given that this is not "real" firmware,
       but one explicitly written for the emulation, we might as
       well load it directly from an ELF image.  */
    firmware_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS,
                                       bios_name ? bios_name :
                                       "hppa-firmware.img");
    if (firmware_filename == NULL) {
        error_report("no firmware provided");
        exit(1);
    }

    size = load_elf(firmware_filename, NULL, NULL, NULL,
                    &firmware_entry, &firmware_low, &firmware_high, NULL,
                    true, EM_PARISC, 0, 0);

    /* Unfortunately, load_elf sign-extends reading elf32.  */
    firmware_entry = (target_ureg)firmware_entry;
    firmware_low = (target_ureg)firmware_low;
    firmware_high = (target_ureg)firmware_high;

    if (size < 0) {
        error_report("could not load firmware '%s'", firmware_filename);
        exit(1);
    }
    qemu_log_mask(CPU_LOG_PAGE, "Firmware loaded at 0x%08" PRIx64
                  "-0x%08" PRIx64 ", entry at 0x%08" PRIx64 ".\n",
                  firmware_low, firmware_high, firmware_entry);
    if (firmware_low < FIRMWARE_START || firmware_high >= FIRMWARE_END) {
        error_report("Firmware overlaps with memory or IO space");
        exit(1);
    }
    g_free(firmware_filename);

    rom_region = g_new(MemoryRegion, 1);
    memory_region_init_ram(rom_region, NULL, "firmware",
                           (FIRMWARE_END - FIRMWARE_START), &error_fatal);
    memory_region_add_subregion(addr_space, FIRMWARE_START, rom_region);

    /* Load kernel */
    if (kernel_filename) {
        size = load_elf(kernel_filename, NULL, &cpu_hppa_to_phys,
                        NULL, &kernel_entry, &kernel_low, &kernel_high, NULL,
                        true, EM_PARISC, 0, 0);

        /* Unfortunately, load_elf sign-extends reading elf32.  */
        kernel_entry = (target_ureg) cpu_hppa_to_phys(NULL, kernel_entry);
        kernel_low = (target_ureg)kernel_low;
        kernel_high = (target_ureg)kernel_high;

        if (size < 0) {
            error_report("could not load kernel '%s'", kernel_filename);
            exit(1);
        }
        qemu_log_mask(CPU_LOG_PAGE, "Kernel loaded at 0x%08" PRIx64
                      "-0x%08" PRIx64 ", entry at 0x%08" PRIx64
                      ", size %" PRIu64 " kB\n",
                      kernel_low, kernel_high, kernel_entry, size / KiB);

        if (kernel_cmdline) {
            cpu[0]->env.gr[24] = 0x4000;
            pstrcpy_targphys("cmdline", cpu[0]->env.gr[24],
                             TARGET_PAGE_SIZE, kernel_cmdline);
        }

        if (initrd_filename) {
            ram_addr_t initrd_base;
            int64_t initrd_size;

            initrd_size = get_image_size(initrd_filename);
            if (initrd_size < 0) {
                error_report("could not load initial ram disk '%s'",
                             initrd_filename);
                exit(1);
            }

            /* Load the initrd image high in memory.
               Mirror the algorithm used by palo:
               (1) Due to sign-extension problems and PDC,
               put the initrd no higher than 1G.
               (2) Reserve 64k for stack.  */
            initrd_base = MIN(ram_size, 1 * GiB);
            initrd_base = initrd_base - 64 * KiB;
            initrd_base = (initrd_base - initrd_size) & TARGET_PAGE_MASK;

            if (initrd_base < kernel_high) {
                error_report("kernel and initial ram disk too large!");
                exit(1);
            }

            load_image_targphys(initrd_filename, initrd_base, initrd_size);
            cpu[0]->env.gr[23] = initrd_base;
            cpu[0]->env.gr[22] = initrd_base + initrd_size;
        }
    }

    if (!kernel_entry) {
        /* When booting via firmware, tell firmware if we want interactive
         * mode (kernel_entry=1), and to boot from CD (gr[24]='d')
         * or hard disc * (gr[24]='c').
         */
        kernel_entry = boot_menu ? 1 : 0;
        cpu[0]->env.gr[24] = machine->boot_order[0];
    }

    /* We jump to the firmware entry routine and pass the
     * various parameters in registers. After firmware initialization,
     * firmware will start the Linux kernel with ramdisk and cmdline.
     */
    cpu[0]->env.gr[26] = ram_size;
    cpu[0]->env.gr[25] = kernel_entry;

    /* tell firmware how many SMP CPUs to present in inventory table */
    cpu[0]->env.gr[21] = smp_cpus;

    /* tell firmware fw_cfg port */
    cpu[0]->env.gr[19] = FW_CFG_IO_BASE;
}

static void hppa_machine_reset(MachineState *ms)
{
    unsigned int smp_cpus = ms->smp.cpus;
    int i;

    qemu_devices_reset();

    /* Start all CPUs at the firmware entry point.
     *  Monarch CPU will initialize firmware, secondary CPUs
     *  will enter a small idle look and wait for rendevouz. */
    for (i = 0; i < smp_cpus; i++) {
        cpu_set_pc(CPU(cpu[i]), firmware_entry);
        cpu[i]->env.gr[5] = CPU_HPA + i * 0x1000;
    }

    /* already initialized by machine_hppa_init()? */
    if (cpu[0]->env.gr[26] == ram_size) {
        return;
    }

    cpu[0]->env.gr[26] = ram_size;
    cpu[0]->env.gr[25] = 0; /* no firmware boot menu */
    cpu[0]->env.gr[24] = 'c';
    /* gr22/gr23 unused, no initrd while reboot. */
    cpu[0]->env.gr[21] = smp_cpus;
    /* tell firmware fw_cfg port */
    cpu[0]->env.gr[19] = FW_CFG_IO_BASE;
}


static void machine_hppa_machine_init(MachineClass *mc)
{
    mc->desc = "HPPA generic machine";
    mc->default_cpu_type = TYPE_HPPA_CPU;
    mc->init = machine_hppa_init;
    mc->reset = hppa_machine_reset;
    mc->block_default_type = IF_SCSI;
    mc->max_cpus = HPPA_MAX_CPUS;
    mc->default_cpus = 1;
    mc->is_default = true;
    mc->default_ram_size = 512 * MiB;
    mc->default_boot_order = "cd";
    mc->default_ram_id = "ram";
}

DEFINE_MACHINE("hppa", machine_hppa_machine_init)
Commit	Line	Data
813dff13 HD	1	/*
	2	* QEMU HPPA hardware system emulator.
	3	* Copyright 2018 Helge Deller <deller@gmx.de>
	4	*/
	5
	6	#include "qemu/osdep.h"
	7	#include "qemu-common.h"
	8	#include "cpu.h"
813dff13 HD	9	#include "elf.h"
	10	#include "hw/loader.h"
	11	#include "hw/boards.h"
	12	#include "qemu/error-report.h"
71e8a915	13	#include "sysemu/reset.h"
813dff13	14	#include "sysemu/sysemu.h"
bcdb9064	15	#include "hw/rtc/mc146818rtc.h"
813dff13 HD	16	#include "hw/timer/i8254.h"
813dff13 HD	17	#include "hw/char/serial.h"
376b8519	18	#include "hw/net/lasi_82596.h"
070e9a1e	19	#include "hppa_sys.h"
c108cc59	20	#include "qemu/units.h"
813dff13	21	#include "qapi/error.h"
852c27e2	22	#include "net/net.h"
691cbbad	23	#include "qemu/log.h"
e07c4f44	24	#include "net/net.h"
813dff13	25
a72bd606 HD	26	#define MAX_IDE_BUS 2
a72bd606 HD	27
28b71a2e HD	28	#define MIN_SEABIOS_HPPA_VERSION 1 /* require at least this fw version */
28b71a2e HD	29
a72bd606 HD	30	static ISABus *hppa_isa_bus(void)
	31	{
	32	ISABus *isa_bus;
	33	qemu_irq *isa_irqs;
	34	MemoryRegion *isa_region;
	35
	36	isa_region = g_new(MemoryRegion, 1);
	37	memory_region_init_io(isa_region, NULL, &hppa_pci_ignore_ops,
	38	NULL, "isa-io", 0x800);
	39	memory_region_add_subregion(get_system_memory(), IDE_HPA,
	40	isa_region);
	41
	42	isa_bus = isa_bus_new(NULL, get_system_memory(), isa_region,
	43	&error_abort);
	44	isa_irqs = i8259_init(isa_bus,
	45	/* qemu_allocate_irq(dino_set_isa_irq, s, 0)); */
	46	NULL);
	47	isa_bus_irqs(isa_bus, isa_irqs);
	48
	49	return isa_bus;
	50	}
	51
	52	static uint64_t cpu_hppa_to_phys(void *opaque, uint64_t addr)
	53	{
	54	addr &= (0x10000000 - 1);
	55	return addr;
	56	}
	57
	58	static HPPACPU *cpu[HPPA_MAX_CPUS];
	59	static uint64_t firmware_entry;
813dff13	60
32ff8bf2 HD	61	static void fw_cfg_boot_set(void opaque, const char boot_device,
	62	Error **errp)
	63	{
	64	fw_cfg_modify_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
	65	}
	66
28b71a2e HD	67	static FWCfgState create_fw_cfg(MachineState ms)
	68	{
	69	FWCfgState *fw_cfg;
	70	uint64_t val;
	71
24576007	72	fw_cfg = fw_cfg_init_mem(FW_CFG_IO_BASE, FW_CFG_IO_BASE + 4);
28b71a2e HD	73	fw_cfg_add_i16(fw_cfg, FW_CFG_NB_CPUS, ms->smp.cpus);
	74	fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, HPPA_MAX_CPUS);
	75	fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, ram_size);
	76
	77	val = cpu_to_le64(MIN_SEABIOS_HPPA_VERSION);
	78	fw_cfg_add_file(fw_cfg, "/etc/firmware-min-version",
	79	g_memdup(&val, sizeof(val)), sizeof(val));
	80
df5c6a50 HD	81	val = cpu_to_le64(HPPA_TLB_ENTRIES);
	82	fw_cfg_add_file(fw_cfg, "/etc/cpu/tlb_entries",
	83	g_memdup(&val, sizeof(val)), sizeof(val));
	84
	85	val = cpu_to_le64(HPPA_BTLB_ENTRIES);
	86	fw_cfg_add_file(fw_cfg, "/etc/cpu/btlb_entries",
	87	g_memdup(&val, sizeof(val)), sizeof(val));
	88
32ff8bf2 HD	89	fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ms->boot_order[0]);
	90	qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
	91
28b71a2e HD	92	return fw_cfg;
	93	}
	94
813dff13 HD	95	static void machine_hppa_init(MachineState *machine)
813dff13 HD	96	{
a72bd606 HD	97	const char *kernel_filename = machine->kernel_filename;
	98	const char *kernel_cmdline = machine->kernel_cmdline;
	99	const char *initrd_filename = machine->initrd_filename;
877eb21d	100	DeviceState *dev;
a72bd606 HD	101	PCIBus *pci_bus;
	102	ISABus *isa_bus;
	103	qemu_irq rtc_irq, serial_irq;
	104	char *firmware_filename;
	105	uint64_t firmware_low, firmware_high;
	106	long size;
	107	uint64_t kernel_entry = 0, kernel_low, kernel_high;
	108	MemoryRegion *addr_space = get_system_memory();
	109	MemoryRegion *rom_region;
a72bd606 HD	110	MemoryRegion *cpu_region;
a72bd606 HD	111	long i;
33decbd2	112	unsigned int smp_cpus = machine->smp.cpus;
4765384c	113	SysBusDevice *s;
a72bd606	114
a72bd606 HD	115	/* Create CPUs. */
a72bd606 HD	116	for (i = 0; i < smp_cpus; i++) {
266a880e	117	char *name = g_strdup_printf("cpu%ld-io-eir", i);
a72bd606 HD	118	cpu[i] = HPPA_CPU(cpu_create(machine->cpu_type));
	119
	120	cpu_region = g_new(MemoryRegion, 1);
	121	memory_region_init_io(cpu_region, OBJECT(cpu[i]), &hppa_io_eir_ops,
266a880e	122	cpu[i], name, 4);
a72bd606 HD	123	memory_region_add_subregion(addr_space, CPU_HPA + i * 0x1000,
a72bd606 HD	124	cpu_region);
266a880e	125	g_free(name);
a72bd606 HD	126	}
a72bd606 HD	127
a72bd606	128	/* Main memory region. */
b7746b11 PMD	129	if (machine->ram_size > 3 * GiB) {
	130	error_report("RAM size is currently restricted to 3GB");
	131	exit(EXIT_FAILURE);
	132	}
7c59c1e0 IM	133	memory_region_add_subregion_overlap(addr_space, 0, machine->ram, -1);
7c59c1e0 IM	134
a72bd606	135
376b8519 HD	136	/* Init Lasi chip */
	137	lasi_init(addr_space);
	138
a72bd606 HD	139	/* Init Dino (PCI host bus chip). */
	140	pci_bus = dino_init(addr_space, &rtc_irq, &serial_irq);
	141	assert(pci_bus);
	142
	143	/* Create ISA bus. */
	144	isa_bus = hppa_isa_bus();
	145	assert(isa_bus);
	146
	147	/* Realtime clock, used by firmware for PDC_TOD call. */
	148	mc146818_rtc_init(isa_bus, 2000, rtc_irq);
	149
	150	/* Serial code setup. */
9bca0edb	151	if (serial_hd(0)) {
a72bd606 HD	152	uint32_t addr = DINO_UART_HPA + 0x800;
a72bd606 HD	153	serial_mm_init(addr_space, addr, 0, serial_irq,
9bca0edb	154	115200, serial_hd(0), DEVICE_BIG_ENDIAN);
a72bd606 HD	155	}
a72bd606 HD	156
28b71a2e HD	157	/* fw_cfg configuration interface */
	158	create_fw_cfg(machine);
	159
a72bd606	160	/* SCSI disk setup. */
877eb21d MCA	161	dev = DEVICE(pci_create_simple(pci_bus, -1, "lsi53c895a"));
877eb21d MCA	162	lsi53c8xx_handle_legacy_cmdline(dev);
a72bd606	163
4765384c SS	164	/* Graphics setup. */
4765384c SS	165	if (machine->enable_graphics && vga_interface_type != VGA_NONE) {
3e80f690	166	dev = qdev_new("artist");
4765384c	167	s = SYS_BUS_DEVICE(dev);
3c6ef471	168	sysbus_realize_and_unref(s, &error_fatal);
4765384c SS	169	sysbus_mmio_map(s, 0, LASI_GFX_HPA);
	170	sysbus_mmio_map(s, 1, ARTIST_FB_ADDR);
	171	}
	172
0e6de551	173	/* Network setup. */
a72bd606	174	for (i = 0; i < nb_nics; i++) {
376b8519	175	if (!enable_lasi_lan()) {
0e6de551	176	pci_nic_init_nofail(&nd_table[i], pci_bus, "tulip", NULL);
376b8519	177	}
a72bd606 HD	178	}
	179
	180	/* Load firmware. Given that this is not "real" firmware,
	181	but one explicitly written for the emulation, we might as
	182	well load it directly from an ELF image. */
	183	firmware_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS,
	184	bios_name ? bios_name :
	185	"hppa-firmware.img");
	186	if (firmware_filename == NULL) {
	187	error_report("no firmware provided");
	188	exit(1);
	189	}
	190
4366e1db	191	size = load_elf(firmware_filename, NULL, NULL, NULL,
6cdda0ff	192	&firmware_entry, &firmware_low, &firmware_high, NULL,
a72bd606 HD	193	true, EM_PARISC, 0, 0);
	194
	195	/* Unfortunately, load_elf sign-extends reading elf32. */
	196	firmware_entry = (target_ureg)firmware_entry;
	197	firmware_low = (target_ureg)firmware_low;
	198	firmware_high = (target_ureg)firmware_high;
	199
	200	if (size < 0) {
	201	error_report("could not load firmware '%s'", firmware_filename);
	202	exit(1);
	203	}
691cbbad RH	204	qemu_log_mask(CPU_LOG_PAGE, "Firmware loaded at 0x%08" PRIx64
	205	"-0x%08" PRIx64 ", entry at 0x%08" PRIx64 ".\n",
	206	firmware_low, firmware_high, firmware_entry);
8262863d	207	if (firmware_low < FIRMWARE_START \|\| firmware_high >= FIRMWARE_END) {
a72bd606 HD	208	error_report("Firmware overlaps with memory or IO space");
	209	exit(1);
	210	}
	211	g_free(firmware_filename);
	212
	213	rom_region = g_new(MemoryRegion, 1);
6a3a2e82 IM	214	memory_region_init_ram(rom_region, NULL, "firmware",
6a3a2e82 IM	215	(FIRMWARE_END - FIRMWARE_START), &error_fatal);
a72bd606 HD	216	memory_region_add_subregion(addr_space, FIRMWARE_START, rom_region);
	217
	218	/* Load kernel */
	219	if (kernel_filename) {
4366e1db	220	size = load_elf(kernel_filename, NULL, &cpu_hppa_to_phys,
6cdda0ff	221	NULL, &kernel_entry, &kernel_low, &kernel_high, NULL,
a72bd606 HD	222	true, EM_PARISC, 0, 0);
	223
	224	/* Unfortunately, load_elf sign-extends reading elf32. */
	225	kernel_entry = (target_ureg) cpu_hppa_to_phys(NULL, kernel_entry);
	226	kernel_low = (target_ureg)kernel_low;
	227	kernel_high = (target_ureg)kernel_high;
	228
	229	if (size < 0) {
	230	error_report("could not load kernel '%s'", kernel_filename);
	231	exit(1);
	232	}
691cbbad RH	233	qemu_log_mask(CPU_LOG_PAGE, "Kernel loaded at 0x%08" PRIx64
691cbbad RH	234	"-0x%08" PRIx64 ", entry at 0x%08" PRIx64
c108cc59 PMD	235	", size %" PRIu64 " kB\n",
c108cc59 PMD	236	kernel_low, kernel_high, kernel_entry, size / KiB);
a72bd606 HD	237
	238	if (kernel_cmdline) {
	239	cpu[0]->env.gr[24] = 0x4000;
	240	pstrcpy_targphys("cmdline", cpu[0]->env.gr[24],
	241	TARGET_PAGE_SIZE, kernel_cmdline);
	242	}
	243
	244	if (initrd_filename) {
	245	ram_addr_t initrd_base;
f3839fda	246	int64_t initrd_size;
a72bd606 HD	247
	248	initrd_size = get_image_size(initrd_filename);
	249	if (initrd_size < 0) {
	250	error_report("could not load initial ram disk '%s'",
	251	initrd_filename);
	252	exit(1);
	253	}
	254
	255	/* Load the initrd image high in memory.
	256	Mirror the algorithm used by palo:
	257	(1) Due to sign-extension problems and PDC,
	258	put the initrd no higher than 1G.
	259	(2) Reserve 64k for stack. */
c108cc59 PMD	260	initrd_base = MIN(ram_size, 1 * GiB);
c108cc59 PMD	261	initrd_base = initrd_base - 64 * KiB;
a72bd606 HD	262	initrd_base = (initrd_base - initrd_size) & TARGET_PAGE_MASK;
	263
	264	if (initrd_base < kernel_high) {
	265	error_report("kernel and initial ram disk too large!");
	266	exit(1);
	267	}
	268
	269	load_image_targphys(initrd_filename, initrd_base, initrd_size);
	270	cpu[0]->env.gr[23] = initrd_base;
	271	cpu[0]->env.gr[22] = initrd_base + initrd_size;
	272	}
	273	}
	274
	275	if (!kernel_entry) {
	276	/* When booting via firmware, tell firmware if we want interactive
	277	* mode (kernel_entry=1), and to boot from CD (gr[24]='d')
	278	* or hard disc * (gr[24]='c').
	279	*/
	280	kernel_entry = boot_menu ? 1 : 0;
	281	cpu[0]->env.gr[24] = machine->boot_order[0];
	282	}
	283
	284	/* We jump to the firmware entry routine and pass the
	285	* various parameters in registers. After firmware initialization,
	286	* firmware will start the Linux kernel with ramdisk and cmdline.
	287	*/
	288	cpu[0]->env.gr[26] = ram_size;
	289	cpu[0]->env.gr[25] = kernel_entry;
	290
	291	/* tell firmware how many SMP CPUs to present in inventory table */
	292	cpu[0]->env.gr[21] = smp_cpus;
24576007 HD	293
	294	/* tell firmware fw_cfg port */
	295	cpu[0]->env.gr[19] = FW_CFG_IO_BASE;
813dff13 HD	296	}
813dff13 HD	297
a0628599	298	static void hppa_machine_reset(MachineState *ms)
a72bd606	299	{
33decbd2	300	unsigned int smp_cpus = ms->smp.cpus;
a72bd606 HD	301	int i;
	302
	303	qemu_devices_reset();
	304
	305	/* Start all CPUs at the firmware entry point.
	306	* Monarch CPU will initialize firmware, secondary CPUs
	307	* will enter a small idle look and wait for rendevouz. */
	308	for (i = 0; i < smp_cpus; i++) {
	309	cpu_set_pc(CPU(cpu[i]), firmware_entry);
	310	cpu[i]->env.gr[5] = CPU_HPA + i * 0x1000;
	311	}
	312
	313	/* already initialized by machine_hppa_init()? */
	314	if (cpu[0]->env.gr[26] == ram_size) {
	315	return;
	316	}
	317
	318	cpu[0]->env.gr[26] = ram_size;
	319	cpu[0]->env.gr[25] = 0; /* no firmware boot menu */
	320	cpu[0]->env.gr[24] = 'c';
	321	/* gr22/gr23 unused, no initrd while reboot. */
	322	cpu[0]->env.gr[21] = smp_cpus;
24576007 HD	323	/* tell firmware fw_cfg port */
24576007 HD	324	cpu[0]->env.gr[19] = FW_CFG_IO_BASE;
a72bd606 HD	325	}
	326
	327
813dff13 HD	328	static void machine_hppa_machine_init(MachineClass *mc)
	329	{
	330	mc->desc = "HPPA generic machine";
a72bd606	331	mc->default_cpu_type = TYPE_HPPA_CPU;
813dff13	332	mc->init = machine_hppa_init;
a72bd606	333	mc->reset = hppa_machine_reset;
813dff13	334	mc->block_default_type = IF_SCSI;
a72bd606 HD	335	mc->max_cpus = HPPA_MAX_CPUS;
a72bd606 HD	336	mc->default_cpus = 1;
ea0ac7f6	337	mc->is_default = true;
d23b6caa	338	mc->default_ram_size = 512 * MiB;
813dff13	339	mc->default_boot_order = "cd";
7c59c1e0	340	mc->default_ram_id = "ram";
813dff13 HD	341	}
	342
	343	DEFINE_MACHINE("hppa", machine_hppa_machine_init)