diff options
Diffstat (limited to 'qemu/hw/i386/pc.c')
| -rw-r--r-- | qemu/hw/i386/pc.c | 2017 |
1 files changed, 0 insertions, 2017 deletions
diff --git a/qemu/hw/i386/pc.c b/qemu/hw/i386/pc.c deleted file mode 100644 index 99437e0b7..000000000 --- a/qemu/hw/i386/pc.c +++ /dev/null @@ -1,2017 +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 "qemu/osdep.h" -#include "hw/hw.h" -#include "hw/i386/pc.h" -#include "hw/char/serial.h" -#include "hw/i386/apic.h" -#include "hw/i386/topology.h" -#include "sysemu/cpus.h" -#include "hw/block/fdc.h" -#include "hw/ide.h" -#include "hw/pci/pci.h" -#include "hw/pci/pci_bus.h" -#include "hw/nvram/fw_cfg.h" -#include "hw/timer/hpet.h" -#include "hw/smbios/smbios.h" -#include "hw/loader.h" -#include "elf.h" -#include "multiboot.h" -#include "hw/timer/mc146818rtc.h" -#include "hw/timer/i8254.h" -#include "hw/audio/pcspk.h" -#include "hw/pci/msi.h" -#include "hw/sysbus.h" -#include "sysemu/sysemu.h" -#include "sysemu/numa.h" -#include "sysemu/kvm.h" -#include "sysemu/qtest.h" -#include "kvm_i386.h" -#include "hw/xen/xen.h" -#include "sysemu/block-backend.h" -#include "hw/block/block.h" -#include "ui/qemu-spice.h" -#include "exec/memory.h" -#include "exec/address-spaces.h" -#include "sysemu/arch_init.h" -#include "qemu/bitmap.h" -#include "qemu/config-file.h" -#include "qemu/error-report.h" -#include "hw/acpi/acpi.h" -#include "hw/acpi/cpu_hotplug.h" -#include "hw/boards.h" -#include "hw/pci/pci_host.h" -#include "acpi-build.h" -#include "hw/mem/pc-dimm.h" -#include "qapi/visitor.h" -#include "qapi-visit.h" -#include "qom/cpu.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 - -#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_reserve; -static struct e820_entry *e820_table; -static unsigned e820_entries; -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(); -} - -/* IRQ handling */ -int cpu_get_pic_interrupt(CPUX86State *env) -{ - X86CPU *cpu = x86_env_get_cpu(env); - int intno; - - intno = apic_get_interrupt(cpu->apic_state); - if (intno >= 0) { - return intno; - } - /* read the irq from the PIC */ - if (!apic_accept_pic_intr(cpu->apic_state)) { - return -1; - } - - intno = pic_read_irq(isa_pic); - return intno; -} - -static void pic_irq_request(void *opaque, int irq, int level) -{ - CPUState *cs = first_cpu; - X86CPU *cpu = X86_CPU(cs); - - DPRINTF("pic_irqs: %s irq %d\n", level? "raise" : "lower", irq); - if (cpu->apic_state) { - CPU_FOREACH(cs) { - cpu = X86_CPU(cs); - if (apic_accept_pic_intr(cpu->apic_state)) { - apic_deliver_pic_intr(cpu->apic_state, level); - } - } - } else { - if (level) { - cpu_interrupt(cs, CPU_INTERRUPT_HARD); - } else { - cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD); - } - } -} - -/* PC cmos mappings */ - -#define REG_EQUIPMENT_BYTE 0x14 - -int cmos_get_fd_drive_type(FloppyDriveType fd0) -{ - int val; - - switch (fd0) { - case FLOPPY_DRIVE_TYPE_144: - /* 1.44 Mb 3"5 drive */ - val = 4; - break; - case FLOPPY_DRIVE_TYPE_288: - /* 2.88 Mb 3"5 drive */ - val = 5; - break; - case FLOPPY_DRIVE_TYPE_120: - /* 1.2 Mb 5"5 drive */ - val = 2; - break; - case FLOPPY_DRIVE_TYPE_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 void set_boot_dev(ISADevice *s, const char *boot_device, Error **errp) -{ -#define PC_MAX_BOOT_DEVICES 3 - int nbds, bds[3] = { 0, }; - int i; - - nbds = strlen(boot_device); - if (nbds > PC_MAX_BOOT_DEVICES) { - error_setg(errp, "Too many boot devices for PC"); - return; - } - for (i = 0; i < nbds; i++) { - bds[i] = boot_device2nibble(boot_device[i]); - if (bds[i] == 0) { - error_setg(errp, "Invalid boot device for PC: '%c'", - boot_device[i]); - return; - } - } - rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]); - rtc_set_memory(s, 0x38, (bds[2] << 4) | (fd_bootchk ? 0x0 : 0x1)); -} - -static void pc_boot_set(void *opaque, const char *boot_device, Error **errp) -{ - set_boot_dev(opaque, boot_device, errp); -} - -static void pc_cmos_init_floppy(ISADevice *rtc_state, ISADevice *floppy) -{ - int val, nb, i; - FloppyDriveType fd_type[2] = { FLOPPY_DRIVE_TYPE_NONE, - FLOPPY_DRIVE_TYPE_NONE }; - - /* 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(rtc_state, 0x10, val); - - val = rtc_get_memory(rtc_state, REG_EQUIPMENT_BYTE); - nb = 0; - if (fd_type[0] != FLOPPY_DRIVE_TYPE_NONE) { - nb++; - } - if (fd_type[1] != FLOPPY_DRIVE_TYPE_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; - } - rtc_set_memory(rtc_state, REG_EQUIPMENT_BYTE, val); -} - -typedef struct pc_cmos_init_late_arg { - ISADevice *rtc_state; - BusState *idebus[2]; -} pc_cmos_init_late_arg; - -typedef struct check_fdc_state { - ISADevice *floppy; - bool multiple; -} CheckFdcState; - -static int check_fdc(Object *obj, void *opaque) -{ - CheckFdcState *state = opaque; - Object *fdc; - uint32_t iobase; - Error *local_err = NULL; - - fdc = object_dynamic_cast(obj, TYPE_ISA_FDC); - if (!fdc) { - return 0; - } - - iobase = object_property_get_int(obj, "iobase", &local_err); - if (local_err || iobase != 0x3f0) { - error_free(local_err); - return 0; - } - - if (state->floppy) { - state->multiple = true; - } else { - state->floppy = ISA_DEVICE(obj); - } - return 0; -} - -static const char * const fdc_container_path[] = { - "/unattached", "/peripheral", "/peripheral-anon" -}; - -/* - * Locate the FDC at IO address 0x3f0, in order to configure the CMOS registers - * and ACPI objects. - */ -ISADevice *pc_find_fdc0(void) -{ - int i; - Object *container; - CheckFdcState state = { 0 }; - - for (i = 0; i < ARRAY_SIZE(fdc_container_path); i++) { - container = container_get(qdev_get_machine(), fdc_container_path[i]); - object_child_foreach(container, check_fdc, &state); - } - - if (state.multiple) { - error_report("warning: multiple floppy disk controllers with " - "iobase=0x3f0 have been found"); - error_printf("the one being picked for CMOS setup might not reflect " - "your intent"); - } - - return state.floppy; -} - -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, §ors) >= 0) { - cmos_init_hd(s, 0x19, 0x1b, cylinders, heads, sectors); - val |= 0xf0; - } - if (ide_get_geometry(arg->idebus[0], 1, - &cylinders, &heads, §ors) >= 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, §ors) >= 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); - - pc_cmos_init_floppy(s, pc_find_fdc0()); - - qemu_unregister_reset(pc_cmos_init_late, opaque); -} - -void pc_cmos_init(PCMachineState *pcms, - BusState *idebus0, BusState *idebus1, - ISADevice *s) -{ - int val; - static pc_cmos_init_late_arg arg; - - /* various important CMOS locations needed by PC/Bochs bios */ - - /* memory size */ - /* base memory (first MiB) */ - val = MIN(pcms->below_4g_mem_size / 1024, 640); - rtc_set_memory(s, 0x15, val); - rtc_set_memory(s, 0x16, val >> 8); - /* extended memory (next 64MiB) */ - if (pcms->below_4g_mem_size > 1024 * 1024) { - val = (pcms->below_4g_mem_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 (pcms->below_4g_mem_size > 16 * 1024 * 1024) { - val = (pcms->below_4g_mem_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 = pcms->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); - - object_property_add_link(OBJECT(pcms), "rtc_state", - TYPE_ISA_DEVICE, - (Object **)&pcms->rtc, - object_property_allow_set_link, - OBJ_PROP_LINK_UNREF_ON_RELEASE, &error_abort); - object_property_set_link(OBJECT(pcms), OBJECT(s), - "rtc_state", &error_abort); - - set_boot_dev(s, MACHINE(pcms)->boot_order, &error_fatal); - - val = 0; - val |= 0x02; /* FPU is there */ - val |= 0x04; /* PS/2 mouse installed */ - rtc_set_memory(s, REG_EQUIPMENT_BYTE, val); - - /* hard drives and FDC */ - arg.rtc_state = s; - arg.idebus[0] = idebus0; - arg.idebus[1] = idebus1; - qemu_register_reset(pc_cmos_init_late, &arg); -} - -#define TYPE_PORT92 "port92" -#define PORT92(obj) OBJECT_CHECK(Port92State, (obj), TYPE_PORT92) - -/* port 92 stuff: could be split off */ -typedef struct Port92State { - ISADevice parent_obj; - - 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; - int oldval = s->outport; - - DPRINTF("port92: write 0x%02" PRIx64 "\n", val); - s->outport = val; - qemu_set_irq(*s->a20_out, (val >> 1) & 1); - if ((val & 1) && !(oldval & 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 = PORT92(dev); - - s->a20_out = a20_out; -} - -static const VMStateDescription vmstate_port92_isa = { - .name = "port92", - .version_id = 1, - .minimum_version_id = 1, - .fields = (VMStateField[]) { - VMSTATE_UINT8(outport, Port92State), - VMSTATE_END_OF_LIST() - } -}; - -static void port92_reset(DeviceState *d) -{ - Port92State *s = PORT92(d); - - 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 void port92_initfn(Object *obj) -{ - Port92State *s = PORT92(obj); - - memory_region_init_io(&s->io, OBJECT(s), &port92_ops, s, "port92", 1); - - s->outport = 0; -} - -static void port92_realizefn(DeviceState *dev, Error **errp) -{ - ISADevice *isadev = ISA_DEVICE(dev); - Port92State *s = PORT92(dev); - - isa_register_ioport(isadev, &s->io, 0x92); -} - -static void port92_class_initfn(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - - dc->realize = port92_realizefn; - dc->reset = port92_reset; - dc->vmsd = &vmstate_port92_isa; - /* - * Reason: unlike ordinary ISA devices, this one needs additional - * wiring: its A20 output line needs to be wired up by - * port92_init(). - */ - dc->cannot_instantiate_with_device_add_yet = true; -} - -static const TypeInfo port92_info = { - .name = TYPE_PORT92, - .parent = TYPE_ISA_DEVICE, - .instance_size = sizeof(Port92State), - .instance_init = port92_initfn, - .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_reserve.count); - struct e820_entry *entry; - - if (type != E820_RAM) { - /* old FW_CFG_E820_TABLE entry -- reservations only */ - if (index >= E820_NR_ENTRIES) { - return -EBUSY; - } - entry = &e820_reserve.entry[index++]; - - entry->address = cpu_to_le64(address); - entry->length = cpu_to_le64(length); - entry->type = cpu_to_le32(type); - - e820_reserve.count = cpu_to_le32(index); - } - - /* new "etc/e820" file -- include ram too */ - e820_table = g_renew(struct e820_entry, e820_table, e820_entries + 1); - e820_table[e820_entries].address = cpu_to_le64(address); - e820_table[e820_entries].length = cpu_to_le64(length); - e820_table[e820_entries].type = cpu_to_le32(type); - e820_entries++; - - return e820_entries; -} - -int e820_get_num_entries(void) -{ - return e820_entries; -} - -bool e820_get_entry(int idx, uint32_t type, uint64_t *address, uint64_t *length) -{ - if (idx < e820_entries && e820_table[idx].type == cpu_to_le32(type)) { - *address = le64_to_cpu(e820_table[idx].address); - *length = le64_to_cpu(e820_table[idx].length); - return true; - } - return false; -} - -/* Enables contiguous-apic-ID mode, for compatibility */ -static bool compat_apic_id_mode; - -void enable_compat_apic_id_mode(void) -{ - compat_apic_id_mode = true; -} - -/* Calculates initial APIC ID for a specific CPU index - * - * Currently we need to be able to calculate the APIC ID from the CPU index - * alone (without requiring a CPU object), as the QEMU<->Seabios interfaces have - * no concept of "CPU index", and the NUMA tables on fw_cfg need the APIC ID of - * all CPUs up to max_cpus. - */ -static uint32_t x86_cpu_apic_id_from_index(unsigned int cpu_index) -{ - uint32_t correct_id; - static bool warned; - - correct_id = x86_apicid_from_cpu_idx(smp_cores, smp_threads, cpu_index); - if (compat_apic_id_mode) { - if (cpu_index != correct_id && !warned && !qtest_enabled()) { - error_report("APIC IDs set in compatibility mode, " - "CPU topology won't match the configuration"); - warned = true; - } - return cpu_index; - } else { - return correct_id; - } -} - -static void pc_build_smbios(FWCfgState *fw_cfg) -{ - uint8_t *smbios_tables, *smbios_anchor; - size_t smbios_tables_len, smbios_anchor_len; - struct smbios_phys_mem_area *mem_array; - unsigned i, array_count; - - smbios_tables = smbios_get_table_legacy(&smbios_tables_len); - if (smbios_tables) { - fw_cfg_add_bytes(fw_cfg, FW_CFG_SMBIOS_ENTRIES, - smbios_tables, smbios_tables_len); - } - - /* build the array of physical mem area from e820 table */ - mem_array = g_malloc0(sizeof(*mem_array) * e820_get_num_entries()); - for (i = 0, array_count = 0; i < e820_get_num_entries(); i++) { - uint64_t addr, len; - - if (e820_get_entry(i, E820_RAM, &addr, &len)) { - mem_array[array_count].address = addr; - mem_array[array_count].length = len; - array_count++; - } - } - smbios_get_tables(mem_array, array_count, - &smbios_tables, &smbios_tables_len, - &smbios_anchor, &smbios_anchor_len); - g_free(mem_array); - - if (smbios_anchor) { - fw_cfg_add_file(fw_cfg, "etc/smbios/smbios-tables", - smbios_tables, smbios_tables_len); - fw_cfg_add_file(fw_cfg, "etc/smbios/smbios-anchor", - smbios_anchor, smbios_anchor_len); - } -} - -static FWCfgState *bochs_bios_init(AddressSpace *as, PCMachineState *pcms) -{ - FWCfgState *fw_cfg; - uint64_t *numa_fw_cfg; - int i, j; - - fw_cfg = fw_cfg_init_io_dma(FW_CFG_IO_BASE, FW_CFG_IO_BASE + 4, as); - - /* 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)pcms->apic_id_limit); - 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()); - - pc_build_smbios(fw_cfg); - - fw_cfg_add_bytes(fw_cfg, FW_CFG_E820_TABLE, - &e820_reserve, sizeof(e820_reserve)); - fw_cfg_add_file(fw_cfg, "etc/e820", e820_table, - sizeof(struct e820_entry) * e820_entries); - - 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 + pcms->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 < pcms->apic_id_limit); - for (j = 0; j < nb_numa_nodes; j++) { - if (test_bit(i, numa_info[j].node_cpu)) { - numa_fw_cfg[apic_id + 1] = cpu_to_le64(j); - break; - } - } - } - for (i = 0; i < nb_numa_nodes; i++) { - numa_fw_cfg[pcms->apic_id_limit + 1 + i] = - cpu_to_le64(numa_info[i].node_mem); - } - fw_cfg_add_bytes(fw_cfg, FW_CFG_NUMA, numa_fw_cfg, - (1 + pcms->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(PCMachineState *pcms, - FWCfgState *fw_cfg) -{ - 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; - MachineState *machine = MACHINE(pcms); - PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); - const char *kernel_filename = machine->kernel_filename; - const char *initrd_filename = machine->initrd_filename; - const char *kernel_cmdline = machine->kernel_cmdline; - - /* 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 >= pcms->below_4g_mem_size - pcmc->acpi_data_size) { - initrd_max = pcms->below_4g_mem_size - pcmc->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: %s\n", - initrd_filename, strerror(errno)); - 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; - if (setup_size > kernel_size) { - fprintf(stderr, "qemu: invalid kernel header\n"); - exit(1); - } - 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 }; - -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 (current_cpu) { - X86CPU *cpu = X86_CPU(current_cpu); - return cpu->apic_state; - } else { - return NULL; - } -} - -void pc_acpi_smi_interrupt(void *opaque, int irq, int level) -{ - X86CPU *cpu = opaque; - - if (level) { - cpu_interrupt(CPU(cpu), CPU_INTERRUPT_SMI); - } -} - -static X86CPU *pc_new_cpu(const char *cpu_model, int64_t apic_id, - Error **errp) -{ - X86CPU *cpu = NULL; - Error *local_err = NULL; - - cpu = cpu_x86_create(cpu_model, &local_err); - if (local_err != NULL) { - goto out; - } - - object_property_set_int(OBJECT(cpu), apic_id, "apic-id", &local_err); - object_property_set_bool(OBJECT(cpu), true, "realized", &local_err); - -out: - if (local_err) { - error_propagate(errp, local_err); - object_unref(OBJECT(cpu)); - cpu = NULL; - } - return cpu; -} - -void pc_hot_add_cpu(const int64_t id, Error **errp) -{ - X86CPU *cpu; - MachineState *machine = MACHINE(qdev_get_machine()); - int64_t apic_id = x86_cpu_apic_id_from_index(id); - Error *local_err = NULL; - - if (id < 0) { - error_setg(errp, "Invalid CPU id: %" PRIi64, id); - return; - } - - if (cpu_exists(apic_id)) { - error_setg(errp, "Unable to add CPU: %" PRIi64 - ", it already exists", id); - return; - } - - if (id >= max_cpus) { - error_setg(errp, "Unable to add CPU: %" PRIi64 - ", max allowed: %d", id, max_cpus - 1); - return; - } - - if (apic_id >= ACPI_CPU_HOTPLUG_ID_LIMIT) { - error_setg(errp, "Unable to add CPU: %" PRIi64 - ", resulting APIC ID (%" PRIi64 ") is too large", - id, apic_id); - return; - } - - cpu = pc_new_cpu(machine->cpu_model, apic_id, &local_err); - if (local_err) { - error_propagate(errp, local_err); - return; - } - object_unref(OBJECT(cpu)); -} - -void pc_cpus_init(PCMachineState *pcms) -{ - int i; - X86CPU *cpu = NULL; - MachineState *machine = MACHINE(pcms); - - /* init CPUs */ - if (machine->cpu_model == NULL) { -#ifdef TARGET_X86_64 - machine->cpu_model = "qemu64"; -#else - machine->cpu_model = "qemu32"; -#endif - } - - /* Calculates the limit to CPU APIC ID values - * - * Limit for the APIC ID value, so that all - * CPU APIC IDs are < pcms->apic_id_limit. - * - * This is used for FW_CFG_MAX_CPUS. See comments on bochs_bios_init(). - */ - pcms->apic_id_limit = x86_cpu_apic_id_from_index(max_cpus - 1) + 1; - if (pcms->apic_id_limit > ACPI_CPU_HOTPLUG_ID_LIMIT) { - error_report("max_cpus is too large. APIC ID of last CPU is %u", - pcms->apic_id_limit - 1); - exit(1); - } - - pcms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) + - sizeof(CPUArchId) * max_cpus); - for (i = 0; i < max_cpus; i++) { - pcms->possible_cpus->cpus[i].arch_id = x86_cpu_apic_id_from_index(i); - pcms->possible_cpus->len++; - if (i < smp_cpus) { - cpu = pc_new_cpu(machine->cpu_model, x86_cpu_apic_id_from_index(i), - &error_fatal); - pcms->possible_cpus->cpus[i].cpu = CPU(cpu); - object_unref(OBJECT(cpu)); - } - } - - /* tell smbios about cpuid version and features */ - smbios_set_cpuid(cpu->env.cpuid_version, cpu->env.features[FEAT_1_EDX]); -} - -/* pci-info ROM file. Little endian format */ -typedef struct PcRomPciInfo { - uint64_t w32_min; - uint64_t w32_max; - uint64_t w64_min; - uint64_t w64_max; -} PcRomPciInfo; - -static -void pc_machine_done(Notifier *notifier, void *data) -{ - PCMachineState *pcms = container_of(notifier, - PCMachineState, machine_done); - PCIBus *bus = pcms->bus; - - if (bus) { - int extra_hosts = 0; - - QLIST_FOREACH(bus, &bus->child, sibling) { - /* look for expander root buses */ - if (pci_bus_is_root(bus)) { - extra_hosts++; - } - } - if (extra_hosts && pcms->fw_cfg) { - uint64_t *val = g_malloc(sizeof(*val)); - *val = cpu_to_le64(extra_hosts); - fw_cfg_add_file(pcms->fw_cfg, - "etc/extra-pci-roots", val, sizeof(*val)); - } - } - - acpi_setup(); -} - -void pc_guest_info_init(PCMachineState *pcms) -{ - int i, j; - - pcms->apic_xrupt_override = kvm_allows_irq0_override(); - pcms->numa_nodes = nb_numa_nodes; - pcms->node_mem = g_malloc0(pcms->numa_nodes * - sizeof *pcms->node_mem); - for (i = 0; i < nb_numa_nodes; i++) { - pcms->node_mem[i] = numa_info[i].node_mem; - } - - pcms->node_cpu = g_malloc0(pcms->apic_id_limit * - sizeof *pcms->node_cpu); - - for (i = 0; i < max_cpus; i++) { - unsigned int apic_id = x86_cpu_apic_id_from_index(i); - assert(apic_id < pcms->apic_id_limit); - for (j = 0; j < nb_numa_nodes; j++) { - if (test_bit(i, numa_info[j].node_cpu)) { - pcms->node_cpu[apic_id] = j; - break; - } - } - } - - pcms->machine_done.notify = pc_machine_done; - qemu_add_machine_init_done_notifier(&pcms->machine_done); -} - -/* setup pci memory address space mapping into system address space */ -void pc_pci_as_mapping_init(Object *owner, MemoryRegion *system_memory, - MemoryRegion *pci_address_space) -{ - /* Set to lower priority than RAM */ - memory_region_add_subregion_overlap(system_memory, 0x0, - pci_address_space, -1); -} - -void pc_acpi_init(const char *default_dsdt) -{ - char *filename; - - 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); - } else { - QemuOpts *opts = qemu_opts_create(qemu_find_opts("acpi"), NULL, 0, - &error_abort); - Error *err = NULL; - - qemu_opt_set(opts, "file", filename, &error_abort); - - acpi_table_add_builtin(opts, &err); - if (err) { - error_reportf_err(err, "WARNING: failed to load %s: ", - filename); - } - g_free(filename); - } -} - -void xen_load_linux(PCMachineState *pcms) -{ - int i; - FWCfgState *fw_cfg; - - assert(MACHINE(pcms)->kernel_filename != NULL); - - fw_cfg = fw_cfg_init_io(FW_CFG_IO_BASE); - rom_set_fw(fw_cfg); - - load_linux(pcms, fw_cfg); - for (i = 0; i < nb_option_roms; i++) { - assert(!strcmp(option_rom[i].name, "linuxboot.bin") || - !strcmp(option_rom[i].name, "multiboot.bin")); - rom_add_option(option_rom[i].name, option_rom[i].bootindex); - } - pcms->fw_cfg = fw_cfg; -} - -void pc_memory_init(PCMachineState *pcms, - MemoryRegion *system_memory, - MemoryRegion *rom_memory, - MemoryRegion **ram_memory) -{ - int linux_boot, i; - MemoryRegion *ram, *option_rom_mr; - MemoryRegion *ram_below_4g, *ram_above_4g; - FWCfgState *fw_cfg; - MachineState *machine = MACHINE(pcms); - PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); - - assert(machine->ram_size == pcms->below_4g_mem_size + - pcms->above_4g_mem_size); - - linux_boot = (machine->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_allocate_system_memory(ram, NULL, "pc.ram", - machine->ram_size); - *ram_memory = ram; - ram_below_4g = g_malloc(sizeof(*ram_below_4g)); - memory_region_init_alias(ram_below_4g, NULL, "ram-below-4g", ram, - 0, pcms->below_4g_mem_size); - memory_region_add_subregion(system_memory, 0, ram_below_4g); - e820_add_entry(0, pcms->below_4g_mem_size, E820_RAM); - if (pcms->above_4g_mem_size > 0) { - ram_above_4g = g_malloc(sizeof(*ram_above_4g)); - memory_region_init_alias(ram_above_4g, NULL, "ram-above-4g", ram, - pcms->below_4g_mem_size, - pcms->above_4g_mem_size); - memory_region_add_subregion(system_memory, 0x100000000ULL, - ram_above_4g); - e820_add_entry(0x100000000ULL, pcms->above_4g_mem_size, E820_RAM); - } - - if (!pcmc->has_reserved_memory && - (machine->ram_slots || - (machine->maxram_size > machine->ram_size))) { - MachineClass *mc = MACHINE_GET_CLASS(machine); - - error_report("\"-memory 'slots|maxmem'\" is not supported by: %s", - mc->name); - exit(EXIT_FAILURE); - } - - /* initialize hotplug memory address space */ - if (pcmc->has_reserved_memory && - (machine->ram_size < machine->maxram_size)) { - ram_addr_t hotplug_mem_size = - machine->maxram_size - machine->ram_size; - - if (machine->ram_slots > ACPI_MAX_RAM_SLOTS) { - error_report("unsupported amount of memory slots: %"PRIu64, - machine->ram_slots); - exit(EXIT_FAILURE); - } - - if (QEMU_ALIGN_UP(machine->maxram_size, - TARGET_PAGE_SIZE) != machine->maxram_size) { - error_report("maximum memory size must by aligned to multiple of " - "%d bytes", TARGET_PAGE_SIZE); - exit(EXIT_FAILURE); - } - - pcms->hotplug_memory.base = - ROUND_UP(0x100000000ULL + pcms->above_4g_mem_size, 1ULL << 30); - - if (pcmc->enforce_aligned_dimm) { - /* size hotplug region assuming 1G page max alignment per slot */ - hotplug_mem_size += (1ULL << 30) * machine->ram_slots; - } - - if ((pcms->hotplug_memory.base + hotplug_mem_size) < - hotplug_mem_size) { - error_report("unsupported amount of maximum memory: " RAM_ADDR_FMT, - machine->maxram_size); - exit(EXIT_FAILURE); - } - - memory_region_init(&pcms->hotplug_memory.mr, OBJECT(pcms), - "hotplug-memory", hotplug_mem_size); - memory_region_add_subregion(system_memory, pcms->hotplug_memory.base, - &pcms->hotplug_memory.mr); - } - - /* Initialize PC system firmware */ - pc_system_firmware_init(rom_memory, !pcmc->pci_enabled); - - option_rom_mr = g_malloc(sizeof(*option_rom_mr)); - memory_region_init_ram(option_rom_mr, NULL, "pc.rom", PC_ROM_SIZE, - &error_fatal); - 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(&address_space_memory, pcms); - - rom_set_fw(fw_cfg); - - if (pcmc->has_reserved_memory && pcms->hotplug_memory.base) { - uint64_t *val = g_malloc(sizeof(*val)); - PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); - uint64_t res_mem_end = pcms->hotplug_memory.base; - - if (!pcmc->broken_reserved_end) { - res_mem_end += memory_region_size(&pcms->hotplug_memory.mr); - } - *val = cpu_to_le64(ROUND_UP(res_mem_end, 0x1ULL << 30)); - fw_cfg_add_file(fw_cfg, "etc/reserved-memory-end", val, sizeof(*val)); - } - - if (linux_boot) { - load_linux(pcms, fw_cfg); - } - - for (i = 0; i < nb_option_roms; i++) { - rom_add_option(option_rom[i].name, option_rom[i].bootindex); - } - pcms->fw_cfg = fw_cfg; -} - -qemu_irq pc_allocate_cpu_irq(void) -{ - return qemu_allocate_irq(pic_irq_request, NULL, 0); -} - -DeviceState *pc_vga_init(ISABus *isa_bus, PCIBus *pci_bus) -{ - DeviceState *dev = NULL; - - rom_set_order_override(FW_CFG_ORDER_OVERRIDE_VGA); - 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 ? DEVICE(isadev) : NULL; - } - rom_reset_order_override(); - return dev; -} - -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, - bool create_fdctrl, - bool no_vmport, - uint32_t hpet_irqs) -{ - 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; - MemoryRegion *ioport80_io = g_new(MemoryRegion, 1); - MemoryRegion *ioportF0_io = g_new(MemoryRegion, 1); - - memory_region_init_io(ioport80_io, NULL, &ioport80_io_ops, NULL, "ioport80", 1); - memory_region_add_subregion(isa_bus->address_space_io, 0x80, ioport80_io); - - memory_region_init_io(ioportF0_io, NULL, &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())) { - /* In order to set property, here not using sysbus_try_create_simple */ - hpet = qdev_try_create(NULL, TYPE_HPET); - if (hpet) { - /* For pc-piix-*, hpet's intcap is always IRQ2. For pc-q35-1.7 - * and earlier, use IRQ2 for compat. Otherwise, use IRQ16~23, - * IRQ8 and IRQ2. - */ - uint8_t compat = object_property_get_int(OBJECT(hpet), - HPET_INTCAP, NULL); - if (!compat) { - qdev_prop_set_uint32(hpet, HPET_INTCAP, hpet_irqs); - } - qdev_init_nofail(hpet); - sysbus_mmio_map(SYS_BUS_DEVICE(hpet), 0, HPET_BASE); - - 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_pit_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(DEVICE(pit), 0)); - } - pcspk_init(isa_bus, pit); - } - - serial_hds_isa_init(isa_bus, MAX_SERIAL_PORTS); - parallel_hds_isa_init(isa_bus, MAX_PARALLEL_PORTS); - - a20_line = qemu_allocate_irqs(handle_a20_line_change, 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) { - DeviceState *dev = DEVICE(vmmouse); - qdev_prop_set_ptr(dev, "ps2_mouse", i8042); - qdev_init_nofail(dev); - } - port92 = isa_create_simple(isa_bus, "port92"); - port92_init(port92, &a20_line[1]); - - DMA_init(isa_bus, 0); - - for(i = 0; i < MAX_FD; i++) { - fd[i] = drive_get(IF_FLOPPY, 0, i); - create_fdctrl |= !!fd[i]; - } - if (create_fdctrl) { - fdctrl_init_isa(isa_bus, fd); - } -} - -void pc_nic_init(ISABus *isa_bus, PCIBus *pci_bus) -{ - int i; - - rom_set_order_override(FW_CFG_ORDER_OVERRIDE_NIC); - 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, pci_bus, "e1000", NULL); - } - } - rom_reset_order_override(); -} - -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_ioapic_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, IO_APIC_DEFAULT_ADDRESS); - - for (i = 0; i < IOAPIC_NUM_PINS; i++) { - gsi_state->ioapic_irq[i] = qdev_get_gpio_in(dev, i); - } -} - -static void pc_dimm_plug(HotplugHandler *hotplug_dev, - DeviceState *dev, Error **errp) -{ - HotplugHandlerClass *hhc; - Error *local_err = NULL; - PCMachineState *pcms = PC_MACHINE(hotplug_dev); - PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms); - PCDIMMDevice *dimm = PC_DIMM(dev); - PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm); - MemoryRegion *mr = ddc->get_memory_region(dimm); - uint64_t align = TARGET_PAGE_SIZE; - - if (memory_region_get_alignment(mr) && pcmc->enforce_aligned_dimm) { - align = memory_region_get_alignment(mr); - } - - if (!pcms->acpi_dev) { - error_setg(&local_err, - "memory hotplug is not enabled: missing acpi device"); - goto out; - } - - pc_dimm_memory_plug(dev, &pcms->hotplug_memory, mr, align, &local_err); - if (local_err) { - goto out; - } - - hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev); - hhc->plug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &error_abort); -out: - error_propagate(errp, local_err); -} - -static void pc_dimm_unplug_request(HotplugHandler *hotplug_dev, - DeviceState *dev, Error **errp) -{ - HotplugHandlerClass *hhc; - Error *local_err = NULL; - PCMachineState *pcms = PC_MACHINE(hotplug_dev); - - if (!pcms->acpi_dev) { - error_setg(&local_err, - "memory hotplug is not enabled: missing acpi device"); - goto out; - } - - hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev); - hhc->unplug_request(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err); - -out: - error_propagate(errp, local_err); -} - -static void pc_dimm_unplug(HotplugHandler *hotplug_dev, - DeviceState *dev, Error **errp) -{ - PCMachineState *pcms = PC_MACHINE(hotplug_dev); - PCDIMMDevice *dimm = PC_DIMM(dev); - PCDIMMDeviceClass *ddc = PC_DIMM_GET_CLASS(dimm); - MemoryRegion *mr = ddc->get_memory_region(dimm); - HotplugHandlerClass *hhc; - Error *local_err = NULL; - - hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev); - hhc->unplug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err); - - if (local_err) { - goto out; - } - - pc_dimm_memory_unplug(dev, &pcms->hotplug_memory, mr); - object_unparent(OBJECT(dev)); - - out: - error_propagate(errp, local_err); -} - -static int pc_apic_cmp(const void *a, const void *b) -{ - CPUArchId *apic_a = (CPUArchId *)a; - CPUArchId *apic_b = (CPUArchId *)b; - - return apic_a->arch_id - apic_b->arch_id; -} - -static void pc_cpu_plug(HotplugHandler *hotplug_dev, - DeviceState *dev, Error **errp) -{ - CPUClass *cc = CPU_GET_CLASS(dev); - CPUArchId apic_id, *found_cpu; - HotplugHandlerClass *hhc; - Error *local_err = NULL; - PCMachineState *pcms = PC_MACHINE(hotplug_dev); - - if (!dev->hotplugged) { - goto out; - } - - if (!pcms->acpi_dev) { - error_setg(&local_err, - "cpu hotplug is not enabled: missing acpi device"); - goto out; - } - - hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev); - hhc->plug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err); - if (local_err) { - goto out; - } - - /* increment the number of CPUs */ - rtc_set_memory(pcms->rtc, 0x5f, rtc_get_memory(pcms->rtc, 0x5f) + 1); - - apic_id.arch_id = cc->get_arch_id(CPU(dev)); - found_cpu = bsearch(&apic_id, pcms->possible_cpus->cpus, - pcms->possible_cpus->len, sizeof(*pcms->possible_cpus->cpus), - pc_apic_cmp); - assert(found_cpu); - found_cpu->cpu = CPU(dev); -out: - error_propagate(errp, local_err); -} - -static void pc_machine_device_plug_cb(HotplugHandler *hotplug_dev, - DeviceState *dev, Error **errp) -{ - if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { - pc_dimm_plug(hotplug_dev, dev, errp); - } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { - pc_cpu_plug(hotplug_dev, dev, errp); - } -} - -static void pc_machine_device_unplug_request_cb(HotplugHandler *hotplug_dev, - DeviceState *dev, Error **errp) -{ - if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { - pc_dimm_unplug_request(hotplug_dev, dev, errp); - } else { - error_setg(errp, "acpi: device unplug request for not supported device" - " type: %s", object_get_typename(OBJECT(dev))); - } -} - -static void pc_machine_device_unplug_cb(HotplugHandler *hotplug_dev, - DeviceState *dev, Error **errp) -{ - if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { - pc_dimm_unplug(hotplug_dev, dev, errp); - } else { - error_setg(errp, "acpi: device unplug for not supported device" - " type: %s", object_get_typename(OBJECT(dev))); - } -} - -static HotplugHandler *pc_get_hotpug_handler(MachineState *machine, - DeviceState *dev) -{ - PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(machine); - - if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM) || - object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { - return HOTPLUG_HANDLER(machine); - } - - return pcmc->get_hotplug_handler ? - pcmc->get_hotplug_handler(machine, dev) : NULL; -} - -static void -pc_machine_get_hotplug_memory_region_size(Object *obj, Visitor *v, - const char *name, void *opaque, - Error **errp) -{ - PCMachineState *pcms = PC_MACHINE(obj); - int64_t value = memory_region_size(&pcms->hotplug_memory.mr); - - visit_type_int(v, name, &value, errp); -} - -static void pc_machine_get_max_ram_below_4g(Object *obj, Visitor *v, - const char *name, void *opaque, - Error **errp) -{ - PCMachineState *pcms = PC_MACHINE(obj); - uint64_t value = pcms->max_ram_below_4g; - - visit_type_size(v, name, &value, errp); -} - -static void pc_machine_set_max_ram_below_4g(Object *obj, Visitor *v, - const char *name, void *opaque, - Error **errp) -{ - PCMachineState *pcms = PC_MACHINE(obj); - Error *error = NULL; - uint64_t value; - - visit_type_size(v, name, &value, &error); - if (error) { - error_propagate(errp, error); - return; - } - if (value > (1ULL << 32)) { - error_setg(&error, - "Machine option 'max-ram-below-4g=%"PRIu64 - "' expects size less than or equal to 4G", value); - error_propagate(errp, error); - return; - } - - if (value < (1ULL << 20)) { - error_report("Warning: small max_ram_below_4g(%"PRIu64 - ") less than 1M. BIOS may not work..", - value); - } - - pcms->max_ram_below_4g = value; -} - -static void pc_machine_get_vmport(Object *obj, Visitor *v, const char *name, - void *opaque, Error **errp) -{ - PCMachineState *pcms = PC_MACHINE(obj); - OnOffAuto vmport = pcms->vmport; - - visit_type_OnOffAuto(v, name, &vmport, errp); -} - -static void pc_machine_set_vmport(Object *obj, Visitor *v, const char *name, - void *opaque, Error **errp) -{ - PCMachineState *pcms = PC_MACHINE(obj); - - visit_type_OnOffAuto(v, name, &pcms->vmport, errp); -} - -bool pc_machine_is_smm_enabled(PCMachineState *pcms) -{ - bool smm_available = false; - - if (pcms->smm == ON_OFF_AUTO_OFF) { - return false; - } - - if (tcg_enabled() || qtest_enabled()) { - smm_available = true; - } else if (kvm_enabled()) { - smm_available = kvm_has_smm(); - } - - if (smm_available) { - return true; - } - - if (pcms->smm == ON_OFF_AUTO_ON) { - error_report("System Management Mode not supported by this hypervisor."); - exit(1); - } - return false; -} - -static void pc_machine_get_smm(Object *obj, Visitor *v, const char *name, - void *opaque, Error **errp) -{ - PCMachineState *pcms = PC_MACHINE(obj); - OnOffAuto smm = pcms->smm; - - visit_type_OnOffAuto(v, name, &smm, errp); -} - -static void pc_machine_set_smm(Object *obj, Visitor *v, const char *name, - void *opaque, Error **errp) -{ - PCMachineState *pcms = PC_MACHINE(obj); - - visit_type_OnOffAuto(v, name, &pcms->smm, errp); -} - -static bool pc_machine_get_nvdimm(Object *obj, Error **errp) -{ - PCMachineState *pcms = PC_MACHINE(obj); - - return pcms->acpi_nvdimm_state.is_enabled; -} - -static void pc_machine_set_nvdimm(Object *obj, bool value, Error **errp) -{ - PCMachineState *pcms = PC_MACHINE(obj); - - pcms->acpi_nvdimm_state.is_enabled = value; -} - -static void pc_machine_initfn(Object *obj) -{ - PCMachineState *pcms = PC_MACHINE(obj); - - object_property_add(obj, PC_MACHINE_MEMHP_REGION_SIZE, "int", - pc_machine_get_hotplug_memory_region_size, - NULL, NULL, NULL, &error_abort); - - pcms->max_ram_below_4g = 1ULL << 32; /* 4G */ - object_property_add(obj, PC_MACHINE_MAX_RAM_BELOW_4G, "size", - pc_machine_get_max_ram_below_4g, - pc_machine_set_max_ram_below_4g, - NULL, NULL, &error_abort); - object_property_set_description(obj, PC_MACHINE_MAX_RAM_BELOW_4G, - "Maximum ram below the 4G boundary (32bit boundary)", - &error_abort); - - pcms->smm = ON_OFF_AUTO_AUTO; - object_property_add(obj, PC_MACHINE_SMM, "OnOffAuto", - pc_machine_get_smm, - pc_machine_set_smm, - NULL, NULL, &error_abort); - object_property_set_description(obj, PC_MACHINE_SMM, - "Enable SMM (pc & q35)", - &error_abort); - - pcms->vmport = ON_OFF_AUTO_AUTO; - object_property_add(obj, PC_MACHINE_VMPORT, "OnOffAuto", - pc_machine_get_vmport, - pc_machine_set_vmport, - NULL, NULL, &error_abort); - object_property_set_description(obj, PC_MACHINE_VMPORT, - "Enable vmport (pc & q35)", - &error_abort); - - /* nvdimm is disabled on default. */ - pcms->acpi_nvdimm_state.is_enabled = false; - object_property_add_bool(obj, PC_MACHINE_NVDIMM, pc_machine_get_nvdimm, - pc_machine_set_nvdimm, &error_abort); -} - -static void pc_machine_reset(void) -{ - CPUState *cs; - X86CPU *cpu; - - qemu_devices_reset(); - - /* Reset APIC after devices have been reset to cancel - * any changes that qemu_devices_reset() might have done. - */ - CPU_FOREACH(cs) { - cpu = X86_CPU(cs); - - if (cpu->apic_state) { - device_reset(cpu->apic_state); - } - } -} - -static unsigned pc_cpu_index_to_socket_id(unsigned cpu_index) -{ - X86CPUTopoInfo topo; - x86_topo_ids_from_idx(smp_cores, smp_threads, cpu_index, - &topo); - return topo.pkg_id; -} - -static CPUArchIdList *pc_possible_cpu_arch_ids(MachineState *machine) -{ - PCMachineState *pcms = PC_MACHINE(machine); - int len = sizeof(CPUArchIdList) + - sizeof(CPUArchId) * (pcms->possible_cpus->len); - CPUArchIdList *list = g_malloc(len); - - memcpy(list, pcms->possible_cpus, len); - return list; -} - -static void pc_machine_class_init(ObjectClass *oc, void *data) -{ - MachineClass *mc = MACHINE_CLASS(oc); - PCMachineClass *pcmc = PC_MACHINE_CLASS(oc); - HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc); - - pcmc->get_hotplug_handler = mc->get_hotplug_handler; - pcmc->pci_enabled = true; - pcmc->has_acpi_build = true; - pcmc->rsdp_in_ram = true; - pcmc->smbios_defaults = true; - pcmc->smbios_uuid_encoded = true; - pcmc->gigabyte_align = true; - pcmc->has_reserved_memory = true; - pcmc->kvmclock_enabled = true; - pcmc->enforce_aligned_dimm = true; - /* BIOS ACPI tables: 128K. Other BIOS datastructures: less than 4K reported - * to be used at the moment, 32K should be enough for a while. */ - pcmc->acpi_data_size = 0x20000 + 0x8000; - pcmc->save_tsc_khz = true; - mc->get_hotplug_handler = pc_get_hotpug_handler; - mc->cpu_index_to_socket_id = pc_cpu_index_to_socket_id; - mc->possible_cpu_arch_ids = pc_possible_cpu_arch_ids; - mc->default_boot_order = "cad"; - mc->hot_add_cpu = pc_hot_add_cpu; - mc->max_cpus = 255; - mc->reset = pc_machine_reset; - hc->plug = pc_machine_device_plug_cb; - hc->unplug_request = pc_machine_device_unplug_request_cb; - hc->unplug = pc_machine_device_unplug_cb; -} - -static const TypeInfo pc_machine_info = { - .name = TYPE_PC_MACHINE, - .parent = TYPE_MACHINE, - .abstract = true, - .instance_size = sizeof(PCMachineState), - .instance_init = pc_machine_initfn, - .class_size = sizeof(PCMachineClass), - .class_init = pc_machine_class_init, - .interfaces = (InterfaceInfo[]) { - { TYPE_HOTPLUG_HANDLER }, - { } - }, -}; - -static void pc_machine_register_types(void) -{ - type_register_static(&pc_machine_info); -} - -type_init(pc_machine_register_types) |