Imported Debian patch 1.5.0-2013.06+git74+20130802+ef1b0ae-3linaroraring1HEADmaster

1 files changed, 0 insertions, 1162 deletions

diff --git a/hw/pc.c b/hw/pc.c
deleted file mode 100644
index 53cc173..0000000
--- a/hw/pc.c
+++ /dev/null
@@ -1,1162 +0,0 @@
-/*
- * QEMU PC System Emulator
- *
- * Copyright (c) 2003-2004 Fabrice Bellard
- *
- * 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 "pc.h"
-#include "serial.h"
-#include "apic.h"
-#include "fdc.h"
-#include "ide.h"
-#include "pci/pci.h"
-#include "monitor/monitor.h"
-#include "fw_cfg.h"
-#include "hpet_emul.h"
-#include "smbios.h"
-#include "loader.h"
-#include "elf.h"
-#include "multiboot.h"
-#include "mc146818rtc.h"
-#include "i8254.h"
-#include "pcspk.h"
-#include "pci/msi.h"
-#include "sysbus.h"
-#include "sysemu/sysemu.h"
-#include "sysemu/kvm.h"
-#include "kvm_i386.h"
-#include "xen.h"
-#include "sysemu/blockdev.h"
-#include "hw/block-common.h"
-#include "ui/qemu-spice.h"
-#include "exec/memory.h"
-#include "exec/address-spaces.h"
-#include "sysemu/arch_init.h"
-#include "qemu/bitmap.h"
-
-/* debug PC/ISA interrupts */
-//#define DEBUG_IRQ
-
-#ifdef DEBUG_IRQ
-#define DPRINTF(fmt, ...)                                       \
-    do { printf("CPUIRQ: " fmt , ## __VA_ARGS__); } while (0)
-#else
-#define DPRINTF(fmt, ...)
-#endif
-
-/* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables.  */
-#define ACPI_DATA_SIZE       0x10000
-#define BIOS_CFG_IOPORT 0x510
-#define FW_CFG_ACPI_TABLES (FW_CFG_ARCH_LOCAL + 0)
-#define FW_CFG_SMBIOS_ENTRIES (FW_CFG_ARCH_LOCAL + 1)
-#define FW_CFG_IRQ0_OVERRIDE (FW_CFG_ARCH_LOCAL + 2)
-#define FW_CFG_E820_TABLE (FW_CFG_ARCH_LOCAL + 3)
-#define FW_CFG_HPET (FW_CFG_ARCH_LOCAL + 4)
-
-#define E820_NR_ENTRIES		16
-
-struct e820_entry {
-    uint64_t address;
-    uint64_t length;
-    uint32_t type;
-} QEMU_PACKED __attribute((__aligned__(4)));
-
-struct e820_table {
-    uint32_t count;
-    struct e820_entry entry[E820_NR_ENTRIES];
-} QEMU_PACKED __attribute((__aligned__(4)));
-
-static struct e820_table e820_table;
-struct hpet_fw_config hpet_cfg = {.count = UINT8_MAX};
-
-void gsi_handler(void *opaque, int n, int level)
-{
-    GSIState *s = opaque;
-
-    DPRINTF("pc: %s GSI %d\n", level ? "raising" : "lowering", n);
-    if (n < ISA_NUM_IRQS) {
-        qemu_set_irq(s->i8259_irq[n], level);
-    }
-    qemu_set_irq(s->ioapic_irq[n], level);
-}
-
-static void ioport80_write(void *opaque, hwaddr addr, uint64_t data,
-                           unsigned size)
-{
-}
-
-static uint64_t ioport80_read(void *opaque, hwaddr addr, unsigned size)
-{
-    return 0xffffffffffffffffULL;
-}
-
-/* MSDOS compatibility mode FPU exception support */
-static qemu_irq ferr_irq;
-
-void pc_register_ferr_irq(qemu_irq irq)
-{
-    ferr_irq = irq;
-}
-
-/* XXX: add IGNNE support */
-void cpu_set_ferr(CPUX86State *s)
-{
-    qemu_irq_raise(ferr_irq);
-}
-
-static void ioportF0_write(void *opaque, hwaddr addr, uint64_t data,
-                           unsigned size)
-{
-    qemu_irq_lower(ferr_irq);
-}
-
-static uint64_t ioportF0_read(void *opaque, hwaddr addr, unsigned size)
-{
-    return 0xffffffffffffffffULL;
-}
-
-/* TSC handling */
-uint64_t cpu_get_tsc(CPUX86State *env)
-{
-    return cpu_get_ticks();
-}
-
-/* SMM support */
-
-static cpu_set_smm_t smm_set;
-static void *smm_arg;
-
-void cpu_smm_register(cpu_set_smm_t callback, void *arg)
-{
-    assert(smm_set == NULL);
-    assert(smm_arg == NULL);
-    smm_set = callback;
-    smm_arg = arg;
-}
-
-void cpu_smm_update(CPUX86State *env)
-{
-    if (smm_set && smm_arg && env == first_cpu)
-        smm_set(!!(env->hflags & HF_SMM_MASK), smm_arg);
-}
-
-
-/* IRQ handling */
-int cpu_get_pic_interrupt(CPUX86State *env)
-{
-    int intno;
-
-    intno = apic_get_interrupt(env->apic_state);
-    if (intno >= 0) {
-        return intno;
-    }
-    /* read the irq from the PIC */
-    if (!apic_accept_pic_intr(env->apic_state)) {
-        return -1;
-    }
-
-    intno = pic_read_irq(isa_pic);
-    return intno;
-}
-
-static void pic_irq_request(void *opaque, int irq, int level)
-{
-    CPUX86State *env = first_cpu;
-
-    DPRINTF("pic_irqs: %s irq %d\n", level? "raise" : "lower", irq);
-    if (env->apic_state) {
-        while (env) {
-            if (apic_accept_pic_intr(env->apic_state)) {
-                apic_deliver_pic_intr(env->apic_state, level);
-            }
-            env = env->next_cpu;
-        }
-    } else {
-        if (level)
-            cpu_interrupt(env, CPU_INTERRUPT_HARD);
-        else
-            cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
-    }
-}
-
-/* PC cmos mappings */
-
-#define REG_EQUIPMENT_BYTE          0x14
-
-static int cmos_get_fd_drive_type(FDriveType fd0)
-{
-    int val;
-
-    switch (fd0) {
-    case FDRIVE_DRV_144:
-        /* 1.44 Mb 3"5 drive */
-        val = 4;
-        break;
-    case FDRIVE_DRV_288:
-        /* 2.88 Mb 3"5 drive */
-        val = 5;
-        break;
-    case FDRIVE_DRV_120:
-        /* 1.2 Mb 5"5 drive */
-        val = 2;
-        break;
-    case FDRIVE_DRV_NONE:
-    default:
-        val = 0;
-        break;
-    }
-    return val;
-}
-
-static void cmos_init_hd(ISADevice *s, int type_ofs, int info_ofs,
-                         int16_t cylinders, int8_t heads, int8_t sectors)
-{
-    rtc_set_memory(s, type_ofs, 47);
-    rtc_set_memory(s, info_ofs, cylinders);
-    rtc_set_memory(s, info_ofs + 1, cylinders >> 8);
-    rtc_set_memory(s, info_ofs + 2, heads);
-    rtc_set_memory(s, info_ofs + 3, 0xff);
-    rtc_set_memory(s, info_ofs + 4, 0xff);
-    rtc_set_memory(s, info_ofs + 5, 0xc0 | ((heads > 8) << 3));
-    rtc_set_memory(s, info_ofs + 6, cylinders);
-    rtc_set_memory(s, info_ofs + 7, cylinders >> 8);
-    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;
-}
-
-static int set_boot_dev(ISADevice *s, const char *boot_device, int fd_bootchk)
-{
-#define PC_MAX_BOOT_DEVICES 3
-    int nbds, bds[3] = { 0, };
-    int i;
-
-    nbds = strlen(boot_device);
-    if (nbds > PC_MAX_BOOT_DEVICES) {
-        error_report("Too many boot devices for PC");
-        return(1);
-    }
-    for (i = 0; i < nbds; i++) {
-        bds[i] = boot_device2nibble(boot_device[i]);
-        if (bds[i] == 0) {
-            error_report("Invalid boot device for PC: '%c'",
-                         boot_device[i]);
-            return(1);
-        }
-    }
-    rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]);
-    rtc_set_memory(s, 0x38, (bds[2] << 4) | (fd_bootchk ? 0x0 : 0x1));
-    return(0);
-}
-
-static int pc_boot_set(void *opaque, const char *boot_device)
-{
-    return set_boot_dev(opaque, boot_device, 0);
-}
-
-typedef struct pc_cmos_init_late_arg {
-    ISADevice *rtc_state;
-    BusState *idebus[2];
-} pc_cmos_init_late_arg;
-
-static void pc_cmos_init_late(void *opaque)
-{
-    pc_cmos_init_late_arg *arg = opaque;
-    ISADevice *s = arg->rtc_state;
-    int16_t cylinders;
-    int8_t heads, sectors;
-    int val;
-    int i, trans;
-
-    val = 0;
-    if (ide_get_geometry(arg->idebus[0], 0,
-                         &cylinders, &heads, &sectors) >= 0) {
-        cmos_init_hd(s, 0x19, 0x1b, cylinders, heads, sectors);
-        val |= 0xf0;
-    }
-    if (ide_get_geometry(arg->idebus[0], 1,
-                         &cylinders, &heads, &sectors) >= 0) {
-        cmos_init_hd(s, 0x1a, 0x24, cylinders, heads, sectors);
-        val |= 0x0f;
-    }
-    rtc_set_memory(s, 0x12, val);
-
-    val = 0;
-    for (i = 0; i < 4; i++) {
-        /* NOTE: ide_get_geometry() returns the physical
-           geometry.  It is always such that: 1 <= sects <= 63, 1
-           <= heads <= 16, 1 <= cylinders <= 16383. The BIOS
-           geometry can be different if a translation is done. */
-        if (ide_get_geometry(arg->idebus[i / 2], i % 2,
-                             &cylinders, &heads, &sectors) >= 0) {
-            trans = ide_get_bios_chs_trans(arg->idebus[i / 2], i % 2) - 1;
-            assert((trans & ~3) == 0);
-            val |= trans << (i * 2);
-        }
-    }
-    rtc_set_memory(s, 0x39, val);
-
-    qemu_unregister_reset(pc_cmos_init_late, opaque);
-}
-
-void pc_cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size,
-                  const char *boot_device,
-                  ISADevice *floppy, BusState *idebus0, BusState *idebus1,
-                  ISADevice *s)
-{
-    int val, nb, i;
-    FDriveType fd_type[2] = { FDRIVE_DRV_NONE, FDRIVE_DRV_NONE };
-    static pc_cmos_init_late_arg arg;
-
-    /* various important CMOS locations needed by PC/Bochs bios */
-
-    /* memory size */
-    /* base memory (first MiB) */
-    val = MIN(ram_size / 1024, 640);
-    rtc_set_memory(s, 0x15, val);
-    rtc_set_memory(s, 0x16, val >> 8);
-    /* extended memory (next 64MiB) */
-    if (ram_size > 1024 * 1024) {
-        val = (ram_size - 1024 * 1024) / 1024;
-    } else {
-        val = 0;
-    }
-    if (val > 65535)
-        val = 65535;
-    rtc_set_memory(s, 0x17, val);
-    rtc_set_memory(s, 0x18, val >> 8);
-    rtc_set_memory(s, 0x30, val);
-    rtc_set_memory(s, 0x31, val >> 8);
-    /* memory between 16MiB and 4GiB */
-    if (ram_size > 16 * 1024 * 1024) {
-        val = (ram_size - 16 * 1024 * 1024) / 65536;
-    } else {
-        val = 0;
-    }
-    if (val > 65535)
-        val = 65535;
-    rtc_set_memory(s, 0x34, val);
-    rtc_set_memory(s, 0x35, val >> 8);
-    /* memory above 4GiB */
-    val = above_4g_mem_size / 65536;
-    rtc_set_memory(s, 0x5b, val);
-    rtc_set_memory(s, 0x5c, val >> 8);
-    rtc_set_memory(s, 0x5d, val >> 16);
-
-    /* set the number of CPU */
-    rtc_set_memory(s, 0x5f, smp_cpus - 1);
-
-    /* set boot devices, and disable floppy signature check if requested */
-    if (set_boot_dev(s, boot_device, fd_bootchk)) {
-        exit(1);
-    }
-
-    /* floppy type */
-    if (floppy) {
-        for (i = 0; i < 2; i++) {
-            fd_type[i] = isa_fdc_get_drive_type(floppy, i);
-        }
-    }
-    val = (cmos_get_fd_drive_type(fd_type[0]) << 4) |
-        cmos_get_fd_drive_type(fd_type[1]);
-    rtc_set_memory(s, 0x10, val);
-
-    val = 0;
-    nb = 0;
-    if (fd_type[0] < FDRIVE_DRV_NONE) {
-        nb++;
-    }
-    if (fd_type[1] < FDRIVE_DRV_NONE) {
-        nb++;
-    }
-    switch (nb) {
-    case 0:
-        break;
-    case 1:
-        val |= 0x01; /* 1 drive, ready for boot */
-        break;
-    case 2:
-        val |= 0x41; /* 2 drives, ready for boot */
-        break;
-    }
-    val |= 0x02; /* FPU is there */
-    val |= 0x04; /* PS/2 mouse installed */
-    rtc_set_memory(s, REG_EQUIPMENT_BYTE, val);
-
-    /* hard drives */
-    arg.rtc_state = s;
-    arg.idebus[0] = idebus0;
-    arg.idebus[1] = idebus1;
-    qemu_register_reset(pc_cmos_init_late, &arg);
-}
-
-/* port 92 stuff: could be split off */
-typedef struct Port92State {
-    ISADevice dev;
-    MemoryRegion io;
-    uint8_t outport;
-    qemu_irq *a20_out;
-} Port92State;
-
-static void port92_write(void *opaque, hwaddr addr, uint64_t val,
-                         unsigned size)
-{
-    Port92State *s = opaque;
-
-    DPRINTF("port92: write 0x%02x\n", val);
-    s->outport = val;
-    qemu_set_irq(*s->a20_out, (val >> 1) & 1);
-    if (val & 1) {
-        qemu_system_reset_request();
-    }
-}
-
-static uint64_t port92_read(void *opaque, hwaddr addr,
-                            unsigned size)
-{
-    Port92State *s = opaque;
-    uint32_t ret;
-
-    ret = s->outport;
-    DPRINTF("port92: read 0x%02x\n", ret);
-    return ret;
-}
-
-static void port92_init(ISADevice *dev, qemu_irq *a20_out)
-{
-    Port92State *s = DO_UPCAST(Port92State, dev, dev);
-
-    s->a20_out = a20_out;
-}
-
-static const VMStateDescription vmstate_port92_isa = {
-    .name = "port92",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .minimum_version_id_old = 1,
-    .fields      = (VMStateField []) {
-        VMSTATE_UINT8(outport, Port92State),
-        VMSTATE_END_OF_LIST()
-    }
-};
-
-static void port92_reset(DeviceState *d)
-{
-    Port92State *s = container_of(d, Port92State, dev.qdev);
-
-    s->outport &= ~1;
-}
-
-static const MemoryRegionOps port92_ops = {
-    .read = port92_read,
-    .write = port92_write,
-    .impl = {
-        .min_access_size = 1,
-        .max_access_size = 1,
-    },
-    .endianness = DEVICE_LITTLE_ENDIAN,
-};
-
-static int port92_initfn(ISADevice *dev)
-{
-    Port92State *s = DO_UPCAST(Port92State, dev, dev);
-
-    memory_region_init_io(&s->io, &port92_ops, s, "port92", 1);
-    isa_register_ioport(dev, &s->io, 0x92);
-
-    s->outport = 0;
-    return 0;
-}
-
-static void port92_class_initfn(ObjectClass *klass, void *data)
-{
-    DeviceClass *dc = DEVICE_CLASS(klass);
-    ISADeviceClass *ic = ISA_DEVICE_CLASS(klass);
-    ic->init = port92_initfn;
-    dc->no_user = 1;
-    dc->reset = port92_reset;
-    dc->vmsd = &vmstate_port92_isa;
-}
-
-static const TypeInfo port92_info = {
-    .name          = "port92",
-    .parent        = TYPE_ISA_DEVICE,
-    .instance_size = sizeof(Port92State),
-    .class_init    = port92_class_initfn,
-};
-
-static void port92_register_types(void)
-{
-    type_register_static(&port92_info);
-}
-
-type_init(port92_register_types)
-
-static void handle_a20_line_change(void *opaque, int irq, int level)
-{
-    X86CPU *cpu = opaque;
-
-    /* XXX: send to all CPUs ? */
-    /* XXX: add logic to handle multiple A20 line sources */
-    x86_cpu_set_a20(cpu, level);
-}
-
-int e820_add_entry(uint64_t address, uint64_t length, uint32_t type)
-{
-    int index = le32_to_cpu(e820_table.count);
-    struct e820_entry *entry;
-
-    if (index >= E820_NR_ENTRIES)
-        return -EBUSY;
-    entry = &e820_table.entry[index++];
-
-    entry->address = cpu_to_le64(address);
-    entry->length = cpu_to_le64(length);
-    entry->type = cpu_to_le32(type);
-
-    e820_table.count = cpu_to_le32(index);
-    return index;
-}
-
-/* Calculates the limit to CPU APIC ID values
- *
- * This function returns the limit for the APIC ID value, so that all
- * CPU APIC IDs are < pc_apic_id_limit().
- *
- * This is used for FW_CFG_MAX_CPUS. See comments on bochs_bios_init().
- */
-static unsigned int pc_apic_id_limit(unsigned int max_cpus)
-{
-    return x86_cpu_apic_id_from_index(max_cpus - 1) + 1;
-}
-
-static void *bochs_bios_init(void)
-{
-    void *fw_cfg;
-    uint8_t *smbios_table;
-    size_t smbios_len;
-    uint64_t *numa_fw_cfg;
-    int i, j;
-    unsigned int apic_id_limit = pc_apic_id_limit(max_cpus);
-
-    fw_cfg = fw_cfg_init(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 1, 0, 0);
-    /* FW_CFG_MAX_CPUS is a bit confusing/problematic on x86:
-     *
-     * SeaBIOS needs FW_CFG_MAX_CPUS for CPU hotplug, but the CPU hotplug
-     * QEMU<->SeaBIOS interface is not based on the "CPU index", but on the APIC
-     * ID of hotplugged CPUs[1]. This means that FW_CFG_MAX_CPUS is not the
-     * "maximum number of CPUs", but the "limit to the APIC ID values SeaBIOS
-     * may see".
-     *
-     * So, this means we must not use max_cpus, here, but the maximum possible
-     * APIC ID value, plus one.
-     *
-     * [1] The only kind of "CPU identifier" used between SeaBIOS and QEMU is
-     *     the APIC ID, not the "CPU index"
-     */
-    fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)apic_id_limit);
-    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_bytes(fw_cfg, FW_CFG_ACPI_TABLES,
-                     acpi_tables, acpi_tables_len);
-    fw_cfg_add_i32(fw_cfg, FW_CFG_IRQ0_OVERRIDE, kvm_allows_irq0_override());
-
-    smbios_table = smbios_get_table(&smbios_len);
-    if (smbios_table)
-        fw_cfg_add_bytes(fw_cfg, FW_CFG_SMBIOS_ENTRIES,
-                         smbios_table, smbios_len);
-    fw_cfg_add_bytes(fw_cfg, FW_CFG_E820_TABLE,
-                     &e820_table, sizeof(e820_table));
-
-    fw_cfg_add_bytes(fw_cfg, FW_CFG_HPET, &hpet_cfg, sizeof(hpet_cfg));
-    /* allocate memory for the NUMA channel: one (64bit) word for the number
-     * of nodes, one word for each VCPU->node and one word for each node to
-     * hold the amount of memory.
-     */
-    numa_fw_cfg = g_new0(uint64_t, 1 + apic_id_limit + nb_numa_nodes);
-    numa_fw_cfg[0] = cpu_to_le64(nb_numa_nodes);
-    for (i = 0; i < max_cpus; i++) {
-        unsigned int apic_id = x86_cpu_apic_id_from_index(i);
-        assert(apic_id < apic_id_limit);
-        for (j = 0; j < nb_numa_nodes; j++) {
-            if (test_bit(i, node_cpumask[j])) {
-                numa_fw_cfg[apic_id + 1] = cpu_to_le64(j);
-                break;
-            }
-        }
-    }
-    for (i = 0; i < nb_numa_nodes; i++) {
-        numa_fw_cfg[apic_id_limit + 1 + i] = cpu_to_le64(node_mem[i]);
-    }
-    fw_cfg_add_bytes(fw_cfg, FW_CFG_NUMA, numa_fw_cfg,
-                     (1 + apic_id_limit + nb_numa_nodes) *
-                     sizeof(*numa_fw_cfg));
-
-    return fw_cfg;
-}
-
-static long get_file_size(FILE *f)
-{
-    long where, size;
-
-    /* XXX: on Unix systems, using fstat() probably makes more sense */
-
-    where = ftell(f);
-    fseek(f, 0, SEEK_END);
-    size = ftell(f);
-    fseek(f, where, SEEK_SET);
-
-    return size;
-}
-
-static void load_linux(void *fw_cfg,
-                       const char *kernel_filename,
-		       const char *initrd_filename,
-		       const char *kernel_cmdline,
-                       hwaddr max_ram_size)
-{
-    uint16_t protocol;
-    int setup_size, kernel_size, initrd_size = 0, cmdline_size;
-    uint32_t initrd_max;
-    uint8_t header[8192], *setup, *kernel, *initrd_data;
-    hwaddr real_addr, prot_addr, cmdline_addr, initrd_addr = 0;
-    FILE *f;
-    char *vmode;
-
-    /* Align to 16 bytes as a paranoia measure */
-    cmdline_size = (strlen(kernel_cmdline)+16) & ~15;
-
-    /* load the kernel header */
-    f = fopen(kernel_filename, "rb");
-    if (!f || !(kernel_size = get_file_size(f)) ||
-	fread(header, 1, MIN(ARRAY_SIZE(header), kernel_size), f) !=
-	MIN(ARRAY_SIZE(header), kernel_size)) {
-	fprintf(stderr, "qemu: could not load kernel '%s': %s\n",
-		kernel_filename, strerror(errno));
-	exit(1);
-    }
-
-    /* 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 {
-	/* This looks like a multiboot kernel. If it is, let's stop
-	   treating it like a Linux kernel. */
-        if (load_multiboot(fw_cfg, f, kernel_filename, initrd_filename,
-                           kernel_cmdline, kernel_size, header))
-            return;
-	protocol = 0;
-    }
-
-    if (protocol < 0x200 || !(header[0x211] & 0x01)) {
-	/* Low kernel */
-	real_addr    = 0x90000;
-	cmdline_addr = 0x9a000 - cmdline_size;
-	prot_addr    = 0x10000;
-    } else if (protocol < 0x202) {
-	/* High but ancient kernel */
-	real_addr    = 0x90000;
-	cmdline_addr = 0x9a000 - cmdline_size;
-	prot_addr    = 0x100000;
-    } else {
-	/* High and recent kernel */
-	real_addr    = 0x10000;
-	cmdline_addr = 0x20000;
-	prot_addr    = 0x100000;
-    }
-
-#if 0
-    fprintf(stderr,
-	    "qemu: real_addr     = 0x" TARGET_FMT_plx "\n"
-	    "qemu: cmdline_addr  = 0x" TARGET_FMT_plx "\n"
-	    "qemu: prot_addr     = 0x" TARGET_FMT_plx "\n",
-	    real_addr,
-	    cmdline_addr,
-	    prot_addr);
-#endif
-
-    /* highest address for loading the initrd */
-    if (protocol >= 0x203)
-	initrd_max = ldl_p(header+0x22c);
-    else
-	initrd_max = 0x37ffffff;
-
-    if (initrd_max >= max_ram_size-ACPI_DATA_SIZE)
-    	initrd_max = max_ram_size-ACPI_DATA_SIZE-1;
-
-    fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_ADDR, cmdline_addr);
-    fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, strlen(kernel_cmdline)+1);
-    fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA, kernel_cmdline);
-
-    if (protocol >= 0x202) {
-	stl_p(header+0x228, cmdline_addr);
-    } else {
-	stw_p(header+0x20, 0xA33F);
-	stw_p(header+0x22, cmdline_addr-real_addr);
-    }
-
-    /* handle vga= parameter */
-    vmode = strstr(kernel_cmdline, "vga=");
-    if (vmode) {
-        unsigned int video_mode;
-        /* skip "vga=" */
-        vmode += 4;
-        if (!strncmp(vmode, "normal", 6)) {
-            video_mode = 0xffff;
-        } else if (!strncmp(vmode, "ext", 3)) {
-            video_mode = 0xfffe;
-        } else if (!strncmp(vmode, "ask", 3)) {
-            video_mode = 0xfffd;
-        } else {
-            video_mode = strtol(vmode, NULL, 0);
-        }
-        stw_p(header+0x1fa, video_mode);
-    }
-
-    /* loader type */
-    /* High nybble = B reserved for QEMU; low nybble is revision number.
-       If this code is substantially changed, you may want to consider
-       incrementing the revision. */
-    if (protocol >= 0x200)
-	header[0x210] = 0xB0;
-
-    /* heap */
-    if (protocol >= 0x201) {
-	header[0x211] |= 0x80;	/* CAN_USE_HEAP */
-	stw_p(header+0x224, cmdline_addr-real_addr-0x200);
-    }
-
-    /* load initrd */
-    if (initrd_filename) {
-	if (protocol < 0x200) {
-	    fprintf(stderr, "qemu: linux kernel too old to load a ram disk\n");
-	    exit(1);
-	}
-
-	initrd_size = get_image_size(initrd_filename);
-        if (initrd_size < 0) {
-            fprintf(stderr, "qemu: error reading initrd %s\n",
-                    initrd_filename);
-            exit(1);
-        }
-
-        initrd_addr = (initrd_max-initrd_size) & ~4095;
-
-        initrd_data = g_malloc(initrd_size);
-        load_image(initrd_filename, initrd_data);
-
-        fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_addr);
-        fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
-        fw_cfg_add_bytes(fw_cfg, FW_CFG_INITRD_DATA, initrd_data, initrd_size);
-
-	stl_p(header+0x218, initrd_addr);
-	stl_p(header+0x21c, initrd_size);
-    }
-
-    /* load kernel and setup */
-    setup_size = header[0x1f1];
-    if (setup_size == 0)
-	setup_size = 4;
-    setup_size = (setup_size+1)*512;
-    kernel_size -= setup_size;
-
-    setup  = g_malloc(setup_size);
-    kernel = g_malloc(kernel_size);
-    fseek(f, 0, SEEK_SET);
-    if (fread(setup, 1, setup_size, f) != setup_size) {
-        fprintf(stderr, "fread() failed\n");
-        exit(1);
-    }
-    if (fread(kernel, 1, kernel_size, f) != kernel_size) {
-        fprintf(stderr, "fread() failed\n");
-        exit(1);
-    }
-    fclose(f);
-    memcpy(setup, header, MIN(sizeof(header), setup_size));
-
-    fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, prot_addr);
-    fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
-    fw_cfg_add_bytes(fw_cfg, FW_CFG_KERNEL_DATA, kernel, kernel_size);
-
-    fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_ADDR, real_addr);
-    fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_SIZE, setup_size);
-    fw_cfg_add_bytes(fw_cfg, FW_CFG_SETUP_DATA, setup, setup_size);
-
-    option_rom[nb_option_roms].name = "linuxboot.bin";
-    option_rom[nb_option_roms].bootindex = 0;
-    nb_option_roms++;
-}
-
-#define NE2000_NB_MAX 6
-
-static const int ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360,
-                                              0x280, 0x380 };
-static const int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 };
-
-static const int parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc };
-static const int parallel_irq[MAX_PARALLEL_PORTS] = { 7, 7, 7 };
-
-void pc_init_ne2k_isa(ISABus *bus, NICInfo *nd)
-{
-    static int nb_ne2k = 0;
-
-    if (nb_ne2k == NE2000_NB_MAX)
-        return;
-    isa_ne2000_init(bus, ne2000_io[nb_ne2k],
-                    ne2000_irq[nb_ne2k], nd);
-    nb_ne2k++;
-}
-
-DeviceState *cpu_get_current_apic(void)
-{
-    if (cpu_single_env) {
-        return cpu_single_env->apic_state;
-    } else {
-        return NULL;
-    }
-}
-
-void pc_acpi_smi_interrupt(void *opaque, int irq, int level)
-{
-    CPUX86State *s = opaque;
-
-    if (level) {
-        cpu_interrupt(s, CPU_INTERRUPT_SMI);
-    }
-}
-
-void pc_cpus_init(const char *cpu_model)
-{
-    int i;
-
-    /* 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++) {
-        if (!cpu_x86_init(cpu_model)) {
-            fprintf(stderr, "Unable to find x86 CPU definition\n");
-            exit(1);
-        }
-    }
-}
-
-void pc_acpi_init(const char *default_dsdt)
-{
-    char *filename = NULL, *arg = NULL;
-
-    if (acpi_tables != NULL) {
-        /* manually set via -acpitable, leave it alone */
-        return;
-    }
-
-    filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, default_dsdt);
-    if (filename == NULL) {
-        fprintf(stderr, "WARNING: failed to find %s\n", default_dsdt);
-        return;
-    }
-
-    arg = g_strdup_printf("file=%s", filename);
-    if (acpi_table_add(arg) != 0) {
-        fprintf(stderr, "WARNING: failed to load %s\n", filename);
-    }
-    g_free(arg);
-    g_free(filename);
-}
-
-void *pc_memory_init(MemoryRegion *system_memory,
-                    const char *kernel_filename,
-                    const char *kernel_cmdline,
-                    const char *initrd_filename,
-                    ram_addr_t below_4g_mem_size,
-                    ram_addr_t above_4g_mem_size,
-                    MemoryRegion *rom_memory,
-                    MemoryRegion **ram_memory)
-{
-    int linux_boot, i;
-    MemoryRegion *ram, *option_rom_mr;
-    MemoryRegion *ram_below_4g, *ram_above_4g;
-    void *fw_cfg;
-
-    linux_boot = (kernel_filename != NULL);
-
-    /* Allocate RAM.  We allocate it as a single memory region and use
-     * aliases to address portions of it, mostly for backwards compatibility
-     * with older qemus that used qemu_ram_alloc().
-     */
-    ram = g_malloc(sizeof(*ram));
-    memory_region_init_ram(ram, "pc.ram",
-                           below_4g_mem_size + above_4g_mem_size);
-    vmstate_register_ram_global(ram);
-    *ram_memory = ram;
-    ram_below_4g = g_malloc(sizeof(*ram_below_4g));
-    memory_region_init_alias(ram_below_4g, "ram-below-4g", ram,
-                             0, below_4g_mem_size);
-    memory_region_add_subregion(system_memory, 0, ram_below_4g);
-    if (above_4g_mem_size > 0) {
-        ram_above_4g = g_malloc(sizeof(*ram_above_4g));
-        memory_region_init_alias(ram_above_4g, "ram-above-4g", ram,
-                                 below_4g_mem_size, above_4g_mem_size);
-        memory_region_add_subregion(system_memory, 0x100000000ULL,
-                                    ram_above_4g);
-    }
-
-
-    /* Initialize PC system firmware */
-    pc_system_firmware_init(rom_memory);
-
-    option_rom_mr = g_malloc(sizeof(*option_rom_mr));
-    memory_region_init_ram(option_rom_mr, "pc.rom", PC_ROM_SIZE);
-    vmstate_register_ram_global(option_rom_mr);
-    memory_region_add_subregion_overlap(rom_memory,
-                                        PC_ROM_MIN_VGA,
-                                        option_rom_mr,
-                                        1);
-
-    fw_cfg = bochs_bios_init();
-    rom_set_fw(fw_cfg);
-
-    if (linux_boot) {
-        load_linux(fw_cfg, kernel_filename, initrd_filename, kernel_cmdline, below_4g_mem_size);
-    }
-
-    for (i = 0; i < nb_option_roms; i++) {
-        rom_add_option(option_rom[i].name, option_rom[i].bootindex);
-    }
-    return fw_cfg;
-}
-
-qemu_irq *pc_allocate_cpu_irq(void)
-{
-    return qemu_allocate_irqs(pic_irq_request, NULL, 1);
-}
-
-DeviceState *pc_vga_init(ISABus *isa_bus, PCIBus *pci_bus)
-{
-    DeviceState *dev = NULL;
-
-    if (pci_bus) {
-        PCIDevice *pcidev = pci_vga_init(pci_bus);
-        dev = pcidev ? &pcidev->qdev : NULL;
-    } else if (isa_bus) {
-        ISADevice *isadev = isa_vga_init(isa_bus);
-        dev = isadev ? &isadev->qdev : NULL;
-    }
-    return dev;
-}
-
-static void cpu_request_exit(void *opaque, int irq, int level)
-{
-    CPUX86State *env = cpu_single_env;
-
-    if (env && level) {
-        cpu_exit(env);
-    }
-}
-
-static const MemoryRegionOps ioport80_io_ops = {
-    .write = ioport80_write,
-    .read = ioport80_read,
-    .endianness = DEVICE_NATIVE_ENDIAN,
-    .impl = {
-        .min_access_size = 1,
-        .max_access_size = 1,
-    },
-};
-
-static const MemoryRegionOps ioportF0_io_ops = {
-    .write = ioportF0_write,
-    .read = ioportF0_read,
-    .endianness = DEVICE_NATIVE_ENDIAN,
-    .impl = {
-        .min_access_size = 1,
-        .max_access_size = 1,
-    },
-};
-
-void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi,
-                          ISADevice **rtc_state,
-                          ISADevice **floppy,
-                          bool no_vmport)
-{
-    int i;
-    DriveInfo *fd[MAX_FD];
-    DeviceState *hpet = NULL;
-    int pit_isa_irq = 0;
-    qemu_irq pit_alt_irq = NULL;
-    qemu_irq rtc_irq = NULL;
-    qemu_irq *a20_line;
-    ISADevice *i8042, *port92, *vmmouse, *pit = NULL;
-    qemu_irq *cpu_exit_irq;
-    MemoryRegion *ioport80_io = g_new(MemoryRegion, 1);
-    MemoryRegion *ioportF0_io = g_new(MemoryRegion, 1);
-
-    memory_region_init_io(ioport80_io, &ioport80_io_ops, NULL, "ioport80", 1);
-    memory_region_add_subregion(isa_bus->address_space_io, 0x80, ioport80_io);
-
-    memory_region_init_io(ioportF0_io, &ioportF0_io_ops, NULL, "ioportF0", 1);
-    memory_region_add_subregion(isa_bus->address_space_io, 0xf0, ioportF0_io);
-
-    /*
-     * Check if an HPET shall be created.
-     *
-     * Without KVM_CAP_PIT_STATE2, we cannot switch off the in-kernel PIT
-     * when the HPET wants to take over. Thus we have to disable the latter.
-     */
-    if (!no_hpet && (!kvm_irqchip_in_kernel() || kvm_has_pit_state2())) {
-        hpet = sysbus_try_create_simple("hpet", HPET_BASE, NULL);
-
-        if (hpet) {
-            for (i = 0; i < GSI_NUM_PINS; i++) {
-                sysbus_connect_irq(SYS_BUS_DEVICE(hpet), i, gsi[i]);
-            }
-            pit_isa_irq = -1;
-            pit_alt_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT);
-            rtc_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT);
-        }
-    }
-    *rtc_state = rtc_init(isa_bus, 2000, rtc_irq);
-
-    qemu_register_boot_set(pc_boot_set, *rtc_state);
-
-    if (!xen_enabled()) {
-        if (kvm_irqchip_in_kernel()) {
-            pit = kvm_pit_init(isa_bus, 0x40);
-        } else {
-            pit = pit_init(isa_bus, 0x40, pit_isa_irq, pit_alt_irq);
-        }
-        if (hpet) {
-            /* connect PIT to output control line of the HPET */
-            qdev_connect_gpio_out(hpet, 0, qdev_get_gpio_in(&pit->qdev, 0));
-        }
-        pcspk_init(isa_bus, pit);
-    }
-
-    for(i = 0; i < MAX_SERIAL_PORTS; i++) {
-        if (serial_hds[i]) {
-            serial_isa_init(isa_bus, i, serial_hds[i]);
-        }
-    }
-
-    for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
-        if (parallel_hds[i]) {
-            parallel_init(isa_bus, i, parallel_hds[i]);
-        }
-    }
-
-    a20_line = qemu_allocate_irqs(handle_a20_line_change,
-                                  x86_env_get_cpu(first_cpu), 2);
-    i8042 = isa_create_simple(isa_bus, "i8042");
-    i8042_setup_a20_line(i8042, &a20_line[0]);
-    if (!no_vmport) {
-        vmport_init(isa_bus);
-        vmmouse = isa_try_create(isa_bus, "vmmouse");
-    } else {
-        vmmouse = NULL;
-    }
-    if (vmmouse) {
-        qdev_prop_set_ptr(&vmmouse->qdev, "ps2_mouse", i8042);
-        qdev_init_nofail(&vmmouse->qdev);
-    }
-    port92 = isa_create_simple(isa_bus, "port92");
-    port92_init(port92, &a20_line[1]);
-
-    cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1);
-    DMA_init(0, cpu_exit_irq);
-
-    for(i = 0; i < MAX_FD; i++) {
-        fd[i] = drive_get(IF_FLOPPY, 0, i);
-    }
-    *floppy = fdctrl_init_isa(isa_bus, fd);
-}
-
-void pc_nic_init(ISABus *isa_bus, PCIBus *pci_bus)
-{
-    int i;
-
-    for (i = 0; i < nb_nics; i++) {
-        NICInfo *nd = &nd_table[i];
-
-        if (!pci_bus || (nd->model && strcmp(nd->model, "ne2k_isa") == 0)) {
-            pc_init_ne2k_isa(isa_bus, nd);
-        } else {
-            pci_nic_init_nofail(nd, "e1000", NULL);
-        }
-    }
-}
-
-void pc_pci_device_init(PCIBus *pci_bus)
-{
-    int max_bus;
-    int bus;
-
-    max_bus = drive_get_max_bus(IF_SCSI);
-    for (bus = 0; bus <= max_bus; bus++) {
-        pci_create_simple(pci_bus, -1, "lsi53c895a");
-    }
-}
-
-void ioapic_init_gsi(GSIState *gsi_state, const char *parent_name)
-{
-    DeviceState *dev;
-    SysBusDevice *d;
-    unsigned int i;
-
-    if (kvm_irqchip_in_kernel()) {
-        dev = qdev_create(NULL, "kvm-ioapic");
-    } else {
-        dev = qdev_create(NULL, "ioapic");
-    }
-    if (parent_name) {
-        object_property_add_child(object_resolve_path(parent_name, NULL),
-                                  "ioapic", OBJECT(dev), NULL);
-    }
-    qdev_init_nofail(dev);
-    d = SYS_BUS_DEVICE(dev);
-    sysbus_mmio_map(d, 0, 0xfec00000);
-
-    for (i = 0; i < IOAPIC_NUM_PINS; i++) {
-        gsi_state->ioapic_irq[i] = qdev_get_gpio_in(dev, i);
-    }
-}