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/*
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* QEMU PC System Emulator
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*
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* Copyright (c) 2003-2004 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hw/hw.h" |
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#include "hw/i386/pc.h" |
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#include "hw/char/serial.h" |
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#include "hw/i386/apic.h" |
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#include "hw/block/fdc.h" |
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#include "hw/ide.h" |
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#include "hw/pci/pci.h" |
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#include "monitor/monitor.h" |
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#include "hw/nvram/fw_cfg.h" |
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#include "hw/timer/hpet.h" |
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#include "hw/i386/smbios.h" |
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#include "hw/loader.h" |
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#include "elf.h" |
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#include "multiboot.h" |
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#include "hw/timer/mc146818rtc.h" |
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#include "hw/timer/i8254.h" |
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#include "hw/audio/pcspk.h" |
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#include "hw/pci/msi.h" |
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#include "hw/sysbus.h" |
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#include "sysemu/sysemu.h" |
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#include "sysemu/kvm.h" |
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#include "kvm_i386.h" |
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#include "hw/xen/xen.h" |
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#include "sysemu/blockdev.h" |
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#include "hw/block/block.h" |
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#include "ui/qemu-spice.h" |
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#include "exec/memory.h" |
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#include "exec/address-spaces.h" |
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#include "sysemu/arch_init.h" |
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#include "qemu/bitmap.h" |
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#include "qemu/config-file.h" |
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#include "hw/acpi/acpi.h" |
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#include "hw/cpu/icc_bus.h" |
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#include "hw/boards.h" |
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|
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/* debug PC/ISA interrupts */
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//#define DEBUG_IRQ
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#ifdef DEBUG_IRQ
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#define DPRINTF(fmt, ...) \
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do { printf("CPUIRQ: " fmt , ## __VA_ARGS__); } while (0) |
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#else
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#define DPRINTF(fmt, ...)
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#endif
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/* Leave a chunk of memory at the top of RAM for the BIOS ACPI tables. */
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#define ACPI_DATA_SIZE 0x10000 |
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#define BIOS_CFG_IOPORT 0x510 |
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#define FW_CFG_ACPI_TABLES (FW_CFG_ARCH_LOCAL + 0) |
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#define FW_CFG_SMBIOS_ENTRIES (FW_CFG_ARCH_LOCAL + 1) |
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#define FW_CFG_IRQ0_OVERRIDE (FW_CFG_ARCH_LOCAL + 2) |
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#define FW_CFG_E820_TABLE (FW_CFG_ARCH_LOCAL + 3) |
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#define FW_CFG_HPET (FW_CFG_ARCH_LOCAL + 4) |
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#define IO_APIC_DEFAULT_ADDRESS 0xfec00000 |
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#define E820_NR_ENTRIES 16 |
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struct e820_entry {
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uint64_t address; |
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uint64_t length; |
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uint32_t type; |
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} QEMU_PACKED __attribute((__aligned__(4)));
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struct e820_table {
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uint32_t count; |
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struct e820_entry entry[E820_NR_ENTRIES];
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} QEMU_PACKED __attribute((__aligned__(4)));
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static struct e820_table e820_table; |
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struct hpet_fw_config hpet_cfg = {.count = UINT8_MAX};
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void gsi_handler(void *opaque, int n, int level) |
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{ |
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GSIState *s = opaque; |
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DPRINTF("pc: %s GSI %d\n", level ? "raising" : "lowering", n); |
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if (n < ISA_NUM_IRQS) {
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qemu_set_irq(s->i8259_irq[n], level); |
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} |
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qemu_set_irq(s->ioapic_irq[n], level); |
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} |
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|
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static void ioport80_write(void *opaque, hwaddr addr, uint64_t data, |
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unsigned size)
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{ |
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} |
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static uint64_t ioport80_read(void *opaque, hwaddr addr, unsigned size) |
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{ |
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return 0xffffffffffffffffULL; |
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} |
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/* MSDOS compatibility mode FPU exception support */
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static qemu_irq ferr_irq;
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void pc_register_ferr_irq(qemu_irq irq)
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{ |
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ferr_irq = irq; |
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} |
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/* XXX: add IGNNE support */
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void cpu_set_ferr(CPUX86State *s)
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{ |
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qemu_irq_raise(ferr_irq); |
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} |
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static void ioportF0_write(void *opaque, hwaddr addr, uint64_t data, |
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unsigned size)
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{ |
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qemu_irq_lower(ferr_irq); |
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} |
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static uint64_t ioportF0_read(void *opaque, hwaddr addr, unsigned size) |
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{ |
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return 0xffffffffffffffffULL; |
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} |
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/* TSC handling */
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uint64_t cpu_get_tsc(CPUX86State *env) |
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{ |
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return cpu_get_ticks();
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} |
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/* SMM support */
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static cpu_set_smm_t smm_set;
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static void *smm_arg; |
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void cpu_smm_register(cpu_set_smm_t callback, void *arg) |
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{ |
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assert(smm_set == NULL);
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assert(smm_arg == NULL);
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smm_set = callback; |
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smm_arg = arg; |
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} |
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void cpu_smm_update(CPUX86State *env)
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{ |
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if (smm_set && smm_arg && env == first_cpu)
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smm_set(!!(env->hflags & HF_SMM_MASK), smm_arg); |
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} |
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/* IRQ handling */
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int cpu_get_pic_interrupt(CPUX86State *env)
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{ |
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int intno;
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intno = apic_get_interrupt(env->apic_state); |
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if (intno >= 0) { |
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return intno;
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} |
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/* read the irq from the PIC */
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if (!apic_accept_pic_intr(env->apic_state)) {
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return -1; |
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} |
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intno = pic_read_irq(isa_pic); |
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return intno;
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} |
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static void pic_irq_request(void *opaque, int irq, int level) |
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{ |
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CPUX86State *env = first_cpu; |
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DPRINTF("pic_irqs: %s irq %d\n", level? "raise" : "lower", irq); |
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if (env->apic_state) {
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while (env) {
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if (apic_accept_pic_intr(env->apic_state)) {
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apic_deliver_pic_intr(env->apic_state, level); |
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} |
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env = env->next_cpu; |
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} |
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} else {
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CPUState *cs = CPU(x86_env_get_cpu(env)); |
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if (level) {
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cpu_interrupt(cs, CPU_INTERRUPT_HARD); |
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} else {
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cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD); |
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} |
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} |
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} |
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/* PC cmos mappings */
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#define REG_EQUIPMENT_BYTE 0x14 |
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static int cmos_get_fd_drive_type(FDriveType fd0) |
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{ |
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int val;
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switch (fd0) {
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case FDRIVE_DRV_144:
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/* 1.44 Mb 3"5 drive */
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val = 4;
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break;
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case FDRIVE_DRV_288:
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/* 2.88 Mb 3"5 drive */
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val = 5;
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break;
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case FDRIVE_DRV_120:
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/* 1.2 Mb 5"5 drive */
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val = 2;
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break;
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case FDRIVE_DRV_NONE:
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default:
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val = 0;
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break;
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} |
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return val;
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} |
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static void cmos_init_hd(ISADevice *s, int type_ofs, int info_ofs, |
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int16_t cylinders, int8_t heads, int8_t sectors) |
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{ |
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rtc_set_memory(s, type_ofs, 47);
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rtc_set_memory(s, info_ofs, cylinders); |
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rtc_set_memory(s, info_ofs + 1, cylinders >> 8); |
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rtc_set_memory(s, info_ofs + 2, heads);
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rtc_set_memory(s, info_ofs + 3, 0xff); |
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rtc_set_memory(s, info_ofs + 4, 0xff); |
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rtc_set_memory(s, info_ofs + 5, 0xc0 | ((heads > 8) << 3)); |
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rtc_set_memory(s, info_ofs + 6, cylinders);
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rtc_set_memory(s, info_ofs + 7, cylinders >> 8); |
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rtc_set_memory(s, info_ofs + 8, sectors);
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} |
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/* convert boot_device letter to something recognizable by the bios */
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static int boot_device2nibble(char boot_device) |
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{ |
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switch(boot_device) {
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case 'a': |
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case 'b': |
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return 0x01; /* floppy boot */ |
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case 'c': |
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return 0x02; /* hard drive boot */ |
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case 'd': |
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return 0x03; /* CD-ROM boot */ |
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case 'n': |
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return 0x04; /* Network boot */ |
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} |
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return 0; |
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} |
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static int set_boot_dev(ISADevice *s, const char *boot_device) |
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{ |
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#define PC_MAX_BOOT_DEVICES 3 |
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int nbds, bds[3] = { 0, }; |
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int i;
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nbds = strlen(boot_device); |
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if (nbds > PC_MAX_BOOT_DEVICES) {
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error_report("Too many boot devices for PC");
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return(1); |
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} |
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for (i = 0; i < nbds; i++) { |
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bds[i] = boot_device2nibble(boot_device[i]); |
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if (bds[i] == 0) { |
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error_report("Invalid boot device for PC: '%c'",
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boot_device[i]); |
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return(1); |
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} |
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} |
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rtc_set_memory(s, 0x3d, (bds[1] << 4) | bds[0]); |
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rtc_set_memory(s, 0x38, (bds[2] << 4) | (fd_bootchk ? 0x0 : 0x1)); |
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return(0); |
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} |
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static int pc_boot_set(void *opaque, const char *boot_device) |
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{ |
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return set_boot_dev(opaque, boot_device);
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} |
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typedef struct pc_cmos_init_late_arg { |
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ISADevice *rtc_state; |
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BusState *idebus[2];
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} pc_cmos_init_late_arg; |
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static void pc_cmos_init_late(void *opaque) |
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{ |
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pc_cmos_init_late_arg *arg = opaque; |
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ISADevice *s = arg->rtc_state; |
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int16_t cylinders; |
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int8_t heads, sectors; |
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int val;
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int i, trans;
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val = 0;
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if (ide_get_geometry(arg->idebus[0], 0, |
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&cylinders, &heads, §ors) >= 0) {
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cmos_init_hd(s, 0x19, 0x1b, cylinders, heads, sectors); |
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val |= 0xf0;
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} |
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if (ide_get_geometry(arg->idebus[0], 1, |
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&cylinders, &heads, §ors) >= 0) {
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cmos_init_hd(s, 0x1a, 0x24, cylinders, heads, sectors); |
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val |= 0x0f;
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} |
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rtc_set_memory(s, 0x12, val);
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val = 0;
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for (i = 0; i < 4; i++) { |
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/* NOTE: ide_get_geometry() returns the physical
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geometry. It is always such that: 1 <= sects <= 63, 1
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<= heads <= 16, 1 <= cylinders <= 16383. The BIOS
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geometry can be different if a translation is done. */
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if (ide_get_geometry(arg->idebus[i / 2], i % 2, |
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&cylinders, &heads, §ors) >= 0) {
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trans = ide_get_bios_chs_trans(arg->idebus[i / 2], i % 2) - 1; |
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assert((trans & ~3) == 0); |
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val |= trans << (i * 2);
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} |
337 |
} |
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rtc_set_memory(s, 0x39, val);
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|
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qemu_unregister_reset(pc_cmos_init_late, opaque); |
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} |
342 |
|
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typedef struct RTCCPUHotplugArg { |
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Notifier cpu_added_notifier; |
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ISADevice *rtc_state; |
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} RTCCPUHotplugArg; |
347 |
|
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static void rtc_notify_cpu_added(Notifier *notifier, void *data) |
349 |
{ |
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RTCCPUHotplugArg *arg = container_of(notifier, RTCCPUHotplugArg, |
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cpu_added_notifier); |
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ISADevice *s = arg->rtc_state; |
353 |
|
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/* increment the number of CPUs */
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rtc_set_memory(s, 0x5f, rtc_get_memory(s, 0x5f) + 1); |
356 |
} |
357 |
|
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void pc_cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size,
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const char *boot_device, |
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ISADevice *floppy, BusState *idebus0, BusState *idebus1, |
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ISADevice *s) |
362 |
{ |
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int val, nb, i;
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FDriveType fd_type[2] = { FDRIVE_DRV_NONE, FDRIVE_DRV_NONE };
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static pc_cmos_init_late_arg arg;
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static RTCCPUHotplugArg cpu_hotplug_cb;
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|
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/* various important CMOS locations needed by PC/Bochs bios */
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369 |
|
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/* memory size */
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/* base memory (first MiB) */
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val = MIN(ram_size / 1024, 640); |
373 |
rtc_set_memory(s, 0x15, val);
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rtc_set_memory(s, 0x16, val >> 8); |
375 |
/* extended memory (next 64MiB) */
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if (ram_size > 1024 * 1024) { |
377 |
val = (ram_size - 1024 * 1024) / 1024; |
378 |
} else {
|
379 |
val = 0;
|
380 |
} |
381 |
if (val > 65535) |
382 |
val = 65535;
|
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rtc_set_memory(s, 0x17, val);
|
384 |
rtc_set_memory(s, 0x18, val >> 8); |
385 |
rtc_set_memory(s, 0x30, val);
|
386 |
rtc_set_memory(s, 0x31, val >> 8); |
387 |
/* memory between 16MiB and 4GiB */
|
388 |
if (ram_size > 16 * 1024 * 1024) { |
389 |
val = (ram_size - 16 * 1024 * 1024) / 65536; |
390 |
} else {
|
391 |
val = 0;
|
392 |
} |
393 |
if (val > 65535) |
394 |
val = 65535;
|
395 |
rtc_set_memory(s, 0x34, val);
|
396 |
rtc_set_memory(s, 0x35, val >> 8); |
397 |
/* memory above 4GiB */
|
398 |
val = above_4g_mem_size / 65536;
|
399 |
rtc_set_memory(s, 0x5b, val);
|
400 |
rtc_set_memory(s, 0x5c, val >> 8); |
401 |
rtc_set_memory(s, 0x5d, val >> 16); |
402 |
|
403 |
/* set the number of CPU */
|
404 |
rtc_set_memory(s, 0x5f, smp_cpus - 1); |
405 |
/* init CPU hotplug notifier */
|
406 |
cpu_hotplug_cb.rtc_state = s; |
407 |
cpu_hotplug_cb.cpu_added_notifier.notify = rtc_notify_cpu_added; |
408 |
qemu_register_cpu_added_notifier(&cpu_hotplug_cb.cpu_added_notifier); |
409 |
|
410 |
if (set_boot_dev(s, boot_device)) {
|
411 |
exit(1);
|
412 |
} |
413 |
|
414 |
/* floppy type */
|
415 |
if (floppy) {
|
416 |
for (i = 0; i < 2; i++) { |
417 |
fd_type[i] = isa_fdc_get_drive_type(floppy, i); |
418 |
} |
419 |
} |
420 |
val = (cmos_get_fd_drive_type(fd_type[0]) << 4) | |
421 |
cmos_get_fd_drive_type(fd_type[1]);
|
422 |
rtc_set_memory(s, 0x10, val);
|
423 |
|
424 |
val = 0;
|
425 |
nb = 0;
|
426 |
if (fd_type[0] < FDRIVE_DRV_NONE) { |
427 |
nb++; |
428 |
} |
429 |
if (fd_type[1] < FDRIVE_DRV_NONE) { |
430 |
nb++; |
431 |
} |
432 |
switch (nb) {
|
433 |
case 0: |
434 |
break;
|
435 |
case 1: |
436 |
val |= 0x01; /* 1 drive, ready for boot */ |
437 |
break;
|
438 |
case 2: |
439 |
val |= 0x41; /* 2 drives, ready for boot */ |
440 |
break;
|
441 |
} |
442 |
val |= 0x02; /* FPU is there */ |
443 |
val |= 0x04; /* PS/2 mouse installed */ |
444 |
rtc_set_memory(s, REG_EQUIPMENT_BYTE, val); |
445 |
|
446 |
/* hard drives */
|
447 |
arg.rtc_state = s; |
448 |
arg.idebus[0] = idebus0;
|
449 |
arg.idebus[1] = idebus1;
|
450 |
qemu_register_reset(pc_cmos_init_late, &arg); |
451 |
} |
452 |
|
453 |
#define TYPE_PORT92 "port92" |
454 |
#define PORT92(obj) OBJECT_CHECK(Port92State, (obj), TYPE_PORT92)
|
455 |
|
456 |
/* port 92 stuff: could be split off */
|
457 |
typedef struct Port92State { |
458 |
ISADevice parent_obj; |
459 |
|
460 |
MemoryRegion io; |
461 |
uint8_t outport; |
462 |
qemu_irq *a20_out; |
463 |
} Port92State; |
464 |
|
465 |
static void port92_write(void *opaque, hwaddr addr, uint64_t val, |
466 |
unsigned size)
|
467 |
{ |
468 |
Port92State *s = opaque; |
469 |
|
470 |
DPRINTF("port92: write 0x%02x\n", val);
|
471 |
s->outport = val; |
472 |
qemu_set_irq(*s->a20_out, (val >> 1) & 1); |
473 |
if (val & 1) { |
474 |
qemu_system_reset_request(); |
475 |
} |
476 |
} |
477 |
|
478 |
static uint64_t port92_read(void *opaque, hwaddr addr, |
479 |
unsigned size)
|
480 |
{ |
481 |
Port92State *s = opaque; |
482 |
uint32_t ret; |
483 |
|
484 |
ret = s->outport; |
485 |
DPRINTF("port92: read 0x%02x\n", ret);
|
486 |
return ret;
|
487 |
} |
488 |
|
489 |
static void port92_init(ISADevice *dev, qemu_irq *a20_out) |
490 |
{ |
491 |
Port92State *s = PORT92(dev); |
492 |
|
493 |
s->a20_out = a20_out; |
494 |
} |
495 |
|
496 |
static const VMStateDescription vmstate_port92_isa = { |
497 |
.name = "port92",
|
498 |
.version_id = 1,
|
499 |
.minimum_version_id = 1,
|
500 |
.minimum_version_id_old = 1,
|
501 |
.fields = (VMStateField []) { |
502 |
VMSTATE_UINT8(outport, Port92State), |
503 |
VMSTATE_END_OF_LIST() |
504 |
} |
505 |
}; |
506 |
|
507 |
static void port92_reset(DeviceState *d) |
508 |
{ |
509 |
Port92State *s = PORT92(d); |
510 |
|
511 |
s->outport &= ~1;
|
512 |
} |
513 |
|
514 |
static const MemoryRegionOps port92_ops = { |
515 |
.read = port92_read, |
516 |
.write = port92_write, |
517 |
.impl = { |
518 |
.min_access_size = 1,
|
519 |
.max_access_size = 1,
|
520 |
}, |
521 |
.endianness = DEVICE_LITTLE_ENDIAN, |
522 |
}; |
523 |
|
524 |
static void port92_initfn(Object *obj) |
525 |
{ |
526 |
Port92State *s = PORT92(obj); |
527 |
|
528 |
memory_region_init_io(&s->io, NULL, &port92_ops, s, "port92", 1); |
529 |
|
530 |
s->outport = 0;
|
531 |
} |
532 |
|
533 |
static void port92_realizefn(DeviceState *dev, Error **errp) |
534 |
{ |
535 |
ISADevice *isadev = ISA_DEVICE(dev); |
536 |
Port92State *s = PORT92(dev); |
537 |
|
538 |
isa_register_ioport(isadev, &s->io, 0x92);
|
539 |
} |
540 |
|
541 |
static void port92_class_initfn(ObjectClass *klass, void *data) |
542 |
{ |
543 |
DeviceClass *dc = DEVICE_CLASS(klass); |
544 |
|
545 |
dc->no_user = 1;
|
546 |
dc->realize = port92_realizefn; |
547 |
dc->reset = port92_reset; |
548 |
dc->vmsd = &vmstate_port92_isa; |
549 |
} |
550 |
|
551 |
static const TypeInfo port92_info = { |
552 |
.name = TYPE_PORT92, |
553 |
.parent = TYPE_ISA_DEVICE, |
554 |
.instance_size = sizeof(Port92State),
|
555 |
.instance_init = port92_initfn, |
556 |
.class_init = port92_class_initfn, |
557 |
}; |
558 |
|
559 |
static void port92_register_types(void) |
560 |
{ |
561 |
type_register_static(&port92_info); |
562 |
} |
563 |
|
564 |
type_init(port92_register_types) |
565 |
|
566 |
static void handle_a20_line_change(void *opaque, int irq, int level) |
567 |
{ |
568 |
X86CPU *cpu = opaque; |
569 |
|
570 |
/* XXX: send to all CPUs ? */
|
571 |
/* XXX: add logic to handle multiple A20 line sources */
|
572 |
x86_cpu_set_a20(cpu, level); |
573 |
} |
574 |
|
575 |
int e820_add_entry(uint64_t address, uint64_t length, uint32_t type)
|
576 |
{ |
577 |
int index = le32_to_cpu(e820_table.count);
|
578 |
struct e820_entry *entry;
|
579 |
|
580 |
if (index >= E820_NR_ENTRIES)
|
581 |
return -EBUSY;
|
582 |
entry = &e820_table.entry[index++]; |
583 |
|
584 |
entry->address = cpu_to_le64(address); |
585 |
entry->length = cpu_to_le64(length); |
586 |
entry->type = cpu_to_le32(type); |
587 |
|
588 |
e820_table.count = cpu_to_le32(index); |
589 |
return index;
|
590 |
} |
591 |
|
592 |
/* Calculates the limit to CPU APIC ID values
|
593 |
*
|
594 |
* This function returns the limit for the APIC ID value, so that all
|
595 |
* CPU APIC IDs are < pc_apic_id_limit().
|
596 |
*
|
597 |
* This is used for FW_CFG_MAX_CPUS. See comments on bochs_bios_init().
|
598 |
*/
|
599 |
static unsigned int pc_apic_id_limit(unsigned int max_cpus) |
600 |
{ |
601 |
return x86_cpu_apic_id_from_index(max_cpus - 1) + 1; |
602 |
} |
603 |
|
604 |
static FWCfgState *bochs_bios_init(void) |
605 |
{ |
606 |
FWCfgState *fw_cfg; |
607 |
uint8_t *smbios_table; |
608 |
size_t smbios_len; |
609 |
uint64_t *numa_fw_cfg; |
610 |
int i, j;
|
611 |
unsigned int apic_id_limit = pc_apic_id_limit(max_cpus); |
612 |
|
613 |
fw_cfg = fw_cfg_init(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 1, 0, 0); |
614 |
/* FW_CFG_MAX_CPUS is a bit confusing/problematic on x86:
|
615 |
*
|
616 |
* SeaBIOS needs FW_CFG_MAX_CPUS for CPU hotplug, but the CPU hotplug
|
617 |
* QEMU<->SeaBIOS interface is not based on the "CPU index", but on the APIC
|
618 |
* ID of hotplugged CPUs[1]. This means that FW_CFG_MAX_CPUS is not the
|
619 |
* "maximum number of CPUs", but the "limit to the APIC ID values SeaBIOS
|
620 |
* may see".
|
621 |
*
|
622 |
* So, this means we must not use max_cpus, here, but the maximum possible
|
623 |
* APIC ID value, plus one.
|
624 |
*
|
625 |
* [1] The only kind of "CPU identifier" used between SeaBIOS and QEMU is
|
626 |
* the APIC ID, not the "CPU index"
|
627 |
*/
|
628 |
fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)apic_id_limit); |
629 |
fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
|
630 |
fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size); |
631 |
fw_cfg_add_bytes(fw_cfg, FW_CFG_ACPI_TABLES, |
632 |
acpi_tables, acpi_tables_len); |
633 |
fw_cfg_add_i32(fw_cfg, FW_CFG_IRQ0_OVERRIDE, kvm_allows_irq0_override()); |
634 |
|
635 |
smbios_table = smbios_get_table(&smbios_len); |
636 |
if (smbios_table)
|
637 |
fw_cfg_add_bytes(fw_cfg, FW_CFG_SMBIOS_ENTRIES, |
638 |
smbios_table, smbios_len); |
639 |
fw_cfg_add_bytes(fw_cfg, FW_CFG_E820_TABLE, |
640 |
&e820_table, sizeof(e820_table));
|
641 |
|
642 |
fw_cfg_add_bytes(fw_cfg, FW_CFG_HPET, &hpet_cfg, sizeof(hpet_cfg));
|
643 |
/* allocate memory for the NUMA channel: one (64bit) word for the number
|
644 |
* of nodes, one word for each VCPU->node and one word for each node to
|
645 |
* hold the amount of memory.
|
646 |
*/
|
647 |
numa_fw_cfg = g_new0(uint64_t, 1 + apic_id_limit + nb_numa_nodes);
|
648 |
numa_fw_cfg[0] = cpu_to_le64(nb_numa_nodes);
|
649 |
for (i = 0; i < max_cpus; i++) { |
650 |
unsigned int apic_id = x86_cpu_apic_id_from_index(i); |
651 |
assert(apic_id < apic_id_limit); |
652 |
for (j = 0; j < nb_numa_nodes; j++) { |
653 |
if (test_bit(i, node_cpumask[j])) {
|
654 |
numa_fw_cfg[apic_id + 1] = cpu_to_le64(j);
|
655 |
break;
|
656 |
} |
657 |
} |
658 |
} |
659 |
for (i = 0; i < nb_numa_nodes; i++) { |
660 |
numa_fw_cfg[apic_id_limit + 1 + i] = cpu_to_le64(node_mem[i]);
|
661 |
} |
662 |
fw_cfg_add_bytes(fw_cfg, FW_CFG_NUMA, numa_fw_cfg, |
663 |
(1 + apic_id_limit + nb_numa_nodes) *
|
664 |
sizeof(*numa_fw_cfg));
|
665 |
|
666 |
return fw_cfg;
|
667 |
} |
668 |
|
669 |
static long get_file_size(FILE *f) |
670 |
{ |
671 |
long where, size;
|
672 |
|
673 |
/* XXX: on Unix systems, using fstat() probably makes more sense */
|
674 |
|
675 |
where = ftell(f); |
676 |
fseek(f, 0, SEEK_END);
|
677 |
size = ftell(f); |
678 |
fseek(f, where, SEEK_SET); |
679 |
|
680 |
return size;
|
681 |
} |
682 |
|
683 |
static void load_linux(FWCfgState *fw_cfg, |
684 |
const char *kernel_filename, |
685 |
const char *initrd_filename, |
686 |
const char *kernel_cmdline, |
687 |
hwaddr max_ram_size) |
688 |
{ |
689 |
uint16_t protocol; |
690 |
int setup_size, kernel_size, initrd_size = 0, cmdline_size; |
691 |
uint32_t initrd_max; |
692 |
uint8_t header[8192], *setup, *kernel, *initrd_data;
|
693 |
hwaddr real_addr, prot_addr, cmdline_addr, initrd_addr = 0;
|
694 |
FILE *f; |
695 |
char *vmode;
|
696 |
|
697 |
/* Align to 16 bytes as a paranoia measure */
|
698 |
cmdline_size = (strlen(kernel_cmdline)+16) & ~15; |
699 |
|
700 |
/* load the kernel header */
|
701 |
f = fopen(kernel_filename, "rb");
|
702 |
if (!f || !(kernel_size = get_file_size(f)) ||
|
703 |
fread(header, 1, MIN(ARRAY_SIZE(header), kernel_size), f) !=
|
704 |
MIN(ARRAY_SIZE(header), kernel_size)) { |
705 |
fprintf(stderr, "qemu: could not load kernel '%s': %s\n",
|
706 |
kernel_filename, strerror(errno)); |
707 |
exit(1);
|
708 |
} |
709 |
|
710 |
/* kernel protocol version */
|
711 |
#if 0
|
712 |
fprintf(stderr, "header magic: %#x\n", ldl_p(header+0x202));
|
713 |
#endif
|
714 |
if (ldl_p(header+0x202) == 0x53726448) { |
715 |
protocol = lduw_p(header+0x206);
|
716 |
} else {
|
717 |
/* This looks like a multiboot kernel. If it is, let's stop
|
718 |
treating it like a Linux kernel. */
|
719 |
if (load_multiboot(fw_cfg, f, kernel_filename, initrd_filename,
|
720 |
kernel_cmdline, kernel_size, header)) { |
721 |
return;
|
722 |
} |
723 |
protocol = 0;
|
724 |
} |
725 |
|
726 |
if (protocol < 0x200 || !(header[0x211] & 0x01)) { |
727 |
/* Low kernel */
|
728 |
real_addr = 0x90000;
|
729 |
cmdline_addr = 0x9a000 - cmdline_size;
|
730 |
prot_addr = 0x10000;
|
731 |
} else if (protocol < 0x202) { |
732 |
/* High but ancient kernel */
|
733 |
real_addr = 0x90000;
|
734 |
cmdline_addr = 0x9a000 - cmdline_size;
|
735 |
prot_addr = 0x100000;
|
736 |
} else {
|
737 |
/* High and recent kernel */
|
738 |
real_addr = 0x10000;
|
739 |
cmdline_addr = 0x20000;
|
740 |
prot_addr = 0x100000;
|
741 |
} |
742 |
|
743 |
#if 0
|
744 |
fprintf(stderr,
|
745 |
"qemu: real_addr = 0x" TARGET_FMT_plx "\n"
|
746 |
"qemu: cmdline_addr = 0x" TARGET_FMT_plx "\n"
|
747 |
"qemu: prot_addr = 0x" TARGET_FMT_plx "\n",
|
748 |
real_addr,
|
749 |
cmdline_addr,
|
750 |
prot_addr);
|
751 |
#endif
|
752 |
|
753 |
/* highest address for loading the initrd */
|
754 |
if (protocol >= 0x203) { |
755 |
initrd_max = ldl_p(header+0x22c);
|
756 |
} else {
|
757 |
initrd_max = 0x37ffffff;
|
758 |
} |
759 |
|
760 |
if (initrd_max >= max_ram_size-ACPI_DATA_SIZE)
|
761 |
initrd_max = max_ram_size-ACPI_DATA_SIZE-1;
|
762 |
|
763 |
fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_ADDR, cmdline_addr); |
764 |
fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, strlen(kernel_cmdline)+1);
|
765 |
fw_cfg_add_string(fw_cfg, FW_CFG_CMDLINE_DATA, kernel_cmdline); |
766 |
|
767 |
if (protocol >= 0x202) { |
768 |
stl_p(header+0x228, cmdline_addr);
|
769 |
} else {
|
770 |
stw_p(header+0x20, 0xA33F); |
771 |
stw_p(header+0x22, cmdline_addr-real_addr);
|
772 |
} |
773 |
|
774 |
/* handle vga= parameter */
|
775 |
vmode = strstr(kernel_cmdline, "vga=");
|
776 |
if (vmode) {
|
777 |
unsigned int video_mode; |
778 |
/* skip "vga=" */
|
779 |
vmode += 4;
|
780 |
if (!strncmp(vmode, "normal", 6)) { |
781 |
video_mode = 0xffff;
|
782 |
} else if (!strncmp(vmode, "ext", 3)) { |
783 |
video_mode = 0xfffe;
|
784 |
} else if (!strncmp(vmode, "ask", 3)) { |
785 |
video_mode = 0xfffd;
|
786 |
} else {
|
787 |
video_mode = strtol(vmode, NULL, 0); |
788 |
} |
789 |
stw_p(header+0x1fa, video_mode);
|
790 |
} |
791 |
|
792 |
/* loader type */
|
793 |
/* High nybble = B reserved for QEMU; low nybble is revision number.
|
794 |
If this code is substantially changed, you may want to consider
|
795 |
incrementing the revision. */
|
796 |
if (protocol >= 0x200) { |
797 |
header[0x210] = 0xB0; |
798 |
} |
799 |
/* heap */
|
800 |
if (protocol >= 0x201) { |
801 |
header[0x211] |= 0x80; /* CAN_USE_HEAP */ |
802 |
stw_p(header+0x224, cmdline_addr-real_addr-0x200); |
803 |
} |
804 |
|
805 |
/* load initrd */
|
806 |
if (initrd_filename) {
|
807 |
if (protocol < 0x200) { |
808 |
fprintf(stderr, "qemu: linux kernel too old to load a ram disk\n");
|
809 |
exit(1);
|
810 |
} |
811 |
|
812 |
initrd_size = get_image_size(initrd_filename); |
813 |
if (initrd_size < 0) { |
814 |
fprintf(stderr, "qemu: error reading initrd %s\n",
|
815 |
initrd_filename); |
816 |
exit(1);
|
817 |
} |
818 |
|
819 |
initrd_addr = (initrd_max-initrd_size) & ~4095;
|
820 |
|
821 |
initrd_data = g_malloc(initrd_size); |
822 |
load_image(initrd_filename, initrd_data); |
823 |
|
824 |
fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_addr); |
825 |
fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size); |
826 |
fw_cfg_add_bytes(fw_cfg, FW_CFG_INITRD_DATA, initrd_data, initrd_size); |
827 |
|
828 |
stl_p(header+0x218, initrd_addr);
|
829 |
stl_p(header+0x21c, initrd_size);
|
830 |
} |
831 |
|
832 |
/* load kernel and setup */
|
833 |
setup_size = header[0x1f1];
|
834 |
if (setup_size == 0) { |
835 |
setup_size = 4;
|
836 |
} |
837 |
setup_size = (setup_size+1)*512; |
838 |
kernel_size -= setup_size; |
839 |
|
840 |
setup = g_malloc(setup_size); |
841 |
kernel = g_malloc(kernel_size); |
842 |
fseek(f, 0, SEEK_SET);
|
843 |
if (fread(setup, 1, setup_size, f) != setup_size) { |
844 |
fprintf(stderr, "fread() failed\n");
|
845 |
exit(1);
|
846 |
} |
847 |
if (fread(kernel, 1, kernel_size, f) != kernel_size) { |
848 |
fprintf(stderr, "fread() failed\n");
|
849 |
exit(1);
|
850 |
} |
851 |
fclose(f); |
852 |
memcpy(setup, header, MIN(sizeof(header), setup_size));
|
853 |
|
854 |
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, prot_addr); |
855 |
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size); |
856 |
fw_cfg_add_bytes(fw_cfg, FW_CFG_KERNEL_DATA, kernel, kernel_size); |
857 |
|
858 |
fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_ADDR, real_addr); |
859 |
fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_SIZE, setup_size); |
860 |
fw_cfg_add_bytes(fw_cfg, FW_CFG_SETUP_DATA, setup, setup_size); |
861 |
|
862 |
option_rom[nb_option_roms].name = "linuxboot.bin";
|
863 |
option_rom[nb_option_roms].bootindex = 0;
|
864 |
nb_option_roms++; |
865 |
} |
866 |
|
867 |
#define NE2000_NB_MAX 6 |
868 |
|
869 |
static const int ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360, |
870 |
0x280, 0x380 }; |
871 |
static const int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 }; |
872 |
|
873 |
static const int parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc }; |
874 |
static const int parallel_irq[MAX_PARALLEL_PORTS] = { 7, 7, 7 }; |
875 |
|
876 |
void pc_init_ne2k_isa(ISABus *bus, NICInfo *nd)
|
877 |
{ |
878 |
static int nb_ne2k = 0; |
879 |
|
880 |
if (nb_ne2k == NE2000_NB_MAX)
|
881 |
return;
|
882 |
isa_ne2000_init(bus, ne2000_io[nb_ne2k], |
883 |
ne2000_irq[nb_ne2k], nd); |
884 |
nb_ne2k++; |
885 |
} |
886 |
|
887 |
DeviceState *cpu_get_current_apic(void)
|
888 |
{ |
889 |
if (cpu_single_env) {
|
890 |
return cpu_single_env->apic_state;
|
891 |
} else {
|
892 |
return NULL; |
893 |
} |
894 |
} |
895 |
|
896 |
void pc_acpi_smi_interrupt(void *opaque, int irq, int level) |
897 |
{ |
898 |
X86CPU *cpu = opaque; |
899 |
|
900 |
if (level) {
|
901 |
cpu_interrupt(CPU(cpu), CPU_INTERRUPT_SMI); |
902 |
} |
903 |
} |
904 |
|
905 |
static X86CPU *pc_new_cpu(const char *cpu_model, int64_t apic_id, |
906 |
DeviceState *icc_bridge, Error **errp) |
907 |
{ |
908 |
X86CPU *cpu; |
909 |
Error *local_err = NULL;
|
910 |
|
911 |
cpu = cpu_x86_create(cpu_model, icc_bridge, errp); |
912 |
if (!cpu) {
|
913 |
return cpu;
|
914 |
} |
915 |
|
916 |
object_property_set_int(OBJECT(cpu), apic_id, "apic-id", &local_err);
|
917 |
object_property_set_bool(OBJECT(cpu), true, "realized", &local_err); |
918 |
|
919 |
if (local_err) {
|
920 |
if (cpu != NULL) { |
921 |
object_unref(OBJECT(cpu)); |
922 |
cpu = NULL;
|
923 |
} |
924 |
error_propagate(errp, local_err); |
925 |
} |
926 |
return cpu;
|
927 |
} |
928 |
|
929 |
static const char *current_cpu_model; |
930 |
|
931 |
void pc_hot_add_cpu(const int64_t id, Error **errp) |
932 |
{ |
933 |
DeviceState *icc_bridge; |
934 |
int64_t apic_id = x86_cpu_apic_id_from_index(id); |
935 |
|
936 |
if (id < 0) { |
937 |
error_setg(errp, "Invalid CPU id: %" PRIi64, id);
|
938 |
return;
|
939 |
} |
940 |
|
941 |
if (cpu_exists(apic_id)) {
|
942 |
error_setg(errp, "Unable to add CPU: %" PRIi64
|
943 |
", it already exists", id);
|
944 |
return;
|
945 |
} |
946 |
|
947 |
if (id >= max_cpus) {
|
948 |
error_setg(errp, "Unable to add CPU: %" PRIi64
|
949 |
", max allowed: %d", id, max_cpus - 1); |
950 |
return;
|
951 |
} |
952 |
|
953 |
icc_bridge = DEVICE(object_resolve_path_type("icc-bridge",
|
954 |
TYPE_ICC_BRIDGE, NULL));
|
955 |
pc_new_cpu(current_cpu_model, apic_id, icc_bridge, errp); |
956 |
} |
957 |
|
958 |
void pc_cpus_init(const char *cpu_model, DeviceState *icc_bridge) |
959 |
{ |
960 |
int i;
|
961 |
X86CPU *cpu = NULL;
|
962 |
Error *error = NULL;
|
963 |
|
964 |
/* init CPUs */
|
965 |
if (cpu_model == NULL) { |
966 |
#ifdef TARGET_X86_64
|
967 |
cpu_model = "qemu64";
|
968 |
#else
|
969 |
cpu_model = "qemu32";
|
970 |
#endif
|
971 |
} |
972 |
current_cpu_model = cpu_model; |
973 |
|
974 |
for (i = 0; i < smp_cpus; i++) { |
975 |
cpu = pc_new_cpu(cpu_model, x86_cpu_apic_id_from_index(i), |
976 |
icc_bridge, &error); |
977 |
if (error) {
|
978 |
fprintf(stderr, "%s\n", error_get_pretty(error));
|
979 |
error_free(error); |
980 |
exit(1);
|
981 |
} |
982 |
} |
983 |
|
984 |
/* map APIC MMIO area if CPU has APIC */
|
985 |
if (cpu && cpu->env.apic_state) {
|
986 |
/* XXX: what if the base changes? */
|
987 |
sysbus_mmio_map_overlap(SYS_BUS_DEVICE(icc_bridge), 0,
|
988 |
APIC_DEFAULT_ADDRESS, 0x1000);
|
989 |
} |
990 |
} |
991 |
|
992 |
void pc_acpi_init(const char *default_dsdt) |
993 |
{ |
994 |
char *filename;
|
995 |
|
996 |
if (acpi_tables != NULL) { |
997 |
/* manually set via -acpitable, leave it alone */
|
998 |
return;
|
999 |
} |
1000 |
|
1001 |
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, default_dsdt); |
1002 |
if (filename == NULL) { |
1003 |
fprintf(stderr, "WARNING: failed to find %s\n", default_dsdt);
|
1004 |
} else {
|
1005 |
char *arg;
|
1006 |
QemuOpts *opts; |
1007 |
Error *err = NULL;
|
1008 |
|
1009 |
arg = g_strdup_printf("file=%s", filename);
|
1010 |
|
1011 |
/* creates a deep copy of "arg" */
|
1012 |
opts = qemu_opts_parse(qemu_find_opts("acpi"), arg, 0); |
1013 |
g_assert(opts != NULL);
|
1014 |
|
1015 |
acpi_table_add(opts, &err); |
1016 |
if (err) {
|
1017 |
fprintf(stderr, "WARNING: failed to load %s: %s\n", filename,
|
1018 |
error_get_pretty(err)); |
1019 |
error_free(err); |
1020 |
} |
1021 |
g_free(arg); |
1022 |
g_free(filename); |
1023 |
} |
1024 |
} |
1025 |
|
1026 |
FWCfgState *pc_memory_init(MemoryRegion *system_memory, |
1027 |
const char *kernel_filename, |
1028 |
const char *kernel_cmdline, |
1029 |
const char *initrd_filename, |
1030 |
ram_addr_t below_4g_mem_size, |
1031 |
ram_addr_t above_4g_mem_size, |
1032 |
MemoryRegion *rom_memory, |
1033 |
MemoryRegion **ram_memory) |
1034 |
{ |
1035 |
int linux_boot, i;
|
1036 |
MemoryRegion *ram, *option_rom_mr; |
1037 |
MemoryRegion *ram_below_4g, *ram_above_4g; |
1038 |
FWCfgState *fw_cfg; |
1039 |
|
1040 |
linux_boot = (kernel_filename != NULL);
|
1041 |
|
1042 |
/* Allocate RAM. We allocate it as a single memory region and use
|
1043 |
* aliases to address portions of it, mostly for backwards compatibility
|
1044 |
* with older qemus that used qemu_ram_alloc().
|
1045 |
*/
|
1046 |
ram = g_malloc(sizeof(*ram));
|
1047 |
memory_region_init_ram(ram, NULL, "pc.ram", |
1048 |
below_4g_mem_size + above_4g_mem_size); |
1049 |
vmstate_register_ram_global(ram); |
1050 |
*ram_memory = ram; |
1051 |
ram_below_4g = g_malloc(sizeof(*ram_below_4g));
|
1052 |
memory_region_init_alias(ram_below_4g, NULL, "ram-below-4g", ram, |
1053 |
0, below_4g_mem_size);
|
1054 |
memory_region_add_subregion(system_memory, 0, ram_below_4g);
|
1055 |
if (above_4g_mem_size > 0) { |
1056 |
ram_above_4g = g_malloc(sizeof(*ram_above_4g));
|
1057 |
memory_region_init_alias(ram_above_4g, NULL, "ram-above-4g", ram, |
1058 |
below_4g_mem_size, above_4g_mem_size); |
1059 |
memory_region_add_subregion(system_memory, 0x100000000ULL,
|
1060 |
ram_above_4g); |
1061 |
} |
1062 |
|
1063 |
|
1064 |
/* Initialize PC system firmware */
|
1065 |
pc_system_firmware_init(rom_memory); |
1066 |
|
1067 |
option_rom_mr = g_malloc(sizeof(*option_rom_mr));
|
1068 |
memory_region_init_ram(option_rom_mr, NULL, "pc.rom", PC_ROM_SIZE); |
1069 |
vmstate_register_ram_global(option_rom_mr); |
1070 |
memory_region_add_subregion_overlap(rom_memory, |
1071 |
PC_ROM_MIN_VGA, |
1072 |
option_rom_mr, |
1073 |
1);
|
1074 |
|
1075 |
fw_cfg = bochs_bios_init(); |
1076 |
rom_set_fw(fw_cfg); |
1077 |
|
1078 |
if (linux_boot) {
|
1079 |
load_linux(fw_cfg, kernel_filename, initrd_filename, kernel_cmdline, below_4g_mem_size); |
1080 |
} |
1081 |
|
1082 |
for (i = 0; i < nb_option_roms; i++) { |
1083 |
rom_add_option(option_rom[i].name, option_rom[i].bootindex); |
1084 |
} |
1085 |
return fw_cfg;
|
1086 |
} |
1087 |
|
1088 |
qemu_irq *pc_allocate_cpu_irq(void)
|
1089 |
{ |
1090 |
return qemu_allocate_irqs(pic_irq_request, NULL, 1); |
1091 |
} |
1092 |
|
1093 |
DeviceState *pc_vga_init(ISABus *isa_bus, PCIBus *pci_bus) |
1094 |
{ |
1095 |
DeviceState *dev = NULL;
|
1096 |
|
1097 |
if (pci_bus) {
|
1098 |
PCIDevice *pcidev = pci_vga_init(pci_bus); |
1099 |
dev = pcidev ? &pcidev->qdev : NULL;
|
1100 |
} else if (isa_bus) { |
1101 |
ISADevice *isadev = isa_vga_init(isa_bus); |
1102 |
dev = isadev ? DEVICE(isadev) : NULL;
|
1103 |
} |
1104 |
return dev;
|
1105 |
} |
1106 |
|
1107 |
static void cpu_request_exit(void *opaque, int irq, int level) |
1108 |
{ |
1109 |
CPUX86State *env = cpu_single_env; |
1110 |
|
1111 |
if (env && level) {
|
1112 |
cpu_exit(CPU(x86_env_get_cpu(env))); |
1113 |
} |
1114 |
} |
1115 |
|
1116 |
static const MemoryRegionOps ioport80_io_ops = { |
1117 |
.write = ioport80_write, |
1118 |
.read = ioport80_read, |
1119 |
.endianness = DEVICE_NATIVE_ENDIAN, |
1120 |
.impl = { |
1121 |
.min_access_size = 1,
|
1122 |
.max_access_size = 1,
|
1123 |
}, |
1124 |
}; |
1125 |
|
1126 |
static const MemoryRegionOps ioportF0_io_ops = { |
1127 |
.write = ioportF0_write, |
1128 |
.read = ioportF0_read, |
1129 |
.endianness = DEVICE_NATIVE_ENDIAN, |
1130 |
.impl = { |
1131 |
.min_access_size = 1,
|
1132 |
.max_access_size = 1,
|
1133 |
}, |
1134 |
}; |
1135 |
|
1136 |
void pc_basic_device_init(ISABus *isa_bus, qemu_irq *gsi,
|
1137 |
ISADevice **rtc_state, |
1138 |
ISADevice **floppy, |
1139 |
bool no_vmport)
|
1140 |
{ |
1141 |
int i;
|
1142 |
DriveInfo *fd[MAX_FD]; |
1143 |
DeviceState *hpet = NULL;
|
1144 |
int pit_isa_irq = 0; |
1145 |
qemu_irq pit_alt_irq = NULL;
|
1146 |
qemu_irq rtc_irq = NULL;
|
1147 |
qemu_irq *a20_line; |
1148 |
ISADevice *i8042, *port92, *vmmouse, *pit = NULL;
|
1149 |
qemu_irq *cpu_exit_irq; |
1150 |
MemoryRegion *ioport80_io = g_new(MemoryRegion, 1);
|
1151 |
MemoryRegion *ioportF0_io = g_new(MemoryRegion, 1);
|
1152 |
|
1153 |
memory_region_init_io(ioport80_io, NULL, &ioport80_io_ops, NULL, "ioport80", 1); |
1154 |
memory_region_add_subregion(isa_bus->address_space_io, 0x80, ioport80_io);
|
1155 |
|
1156 |
memory_region_init_io(ioportF0_io, NULL, &ioportF0_io_ops, NULL, "ioportF0", 1); |
1157 |
memory_region_add_subregion(isa_bus->address_space_io, 0xf0, ioportF0_io);
|
1158 |
|
1159 |
/*
|
1160 |
* Check if an HPET shall be created.
|
1161 |
*
|
1162 |
* Without KVM_CAP_PIT_STATE2, we cannot switch off the in-kernel PIT
|
1163 |
* when the HPET wants to take over. Thus we have to disable the latter.
|
1164 |
*/
|
1165 |
if (!no_hpet && (!kvm_irqchip_in_kernel() || kvm_has_pit_state2())) {
|
1166 |
hpet = sysbus_try_create_simple("hpet", HPET_BASE, NULL); |
1167 |
|
1168 |
if (hpet) {
|
1169 |
for (i = 0; i < GSI_NUM_PINS; i++) { |
1170 |
sysbus_connect_irq(SYS_BUS_DEVICE(hpet), i, gsi[i]); |
1171 |
} |
1172 |
pit_isa_irq = -1;
|
1173 |
pit_alt_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_PIT_INT); |
1174 |
rtc_irq = qdev_get_gpio_in(hpet, HPET_LEGACY_RTC_INT); |
1175 |
} |
1176 |
} |
1177 |
*rtc_state = rtc_init(isa_bus, 2000, rtc_irq);
|
1178 |
|
1179 |
qemu_register_boot_set(pc_boot_set, *rtc_state); |
1180 |
|
1181 |
if (!xen_enabled()) {
|
1182 |
if (kvm_irqchip_in_kernel()) {
|
1183 |
pit = kvm_pit_init(isa_bus, 0x40);
|
1184 |
} else {
|
1185 |
pit = pit_init(isa_bus, 0x40, pit_isa_irq, pit_alt_irq);
|
1186 |
} |
1187 |
if (hpet) {
|
1188 |
/* connect PIT to output control line of the HPET */
|
1189 |
qdev_connect_gpio_out(hpet, 0, qdev_get_gpio_in(DEVICE(pit), 0)); |
1190 |
} |
1191 |
pcspk_init(isa_bus, pit); |
1192 |
} |
1193 |
|
1194 |
for(i = 0; i < MAX_SERIAL_PORTS; i++) { |
1195 |
if (serial_hds[i]) {
|
1196 |
serial_isa_init(isa_bus, i, serial_hds[i]); |
1197 |
} |
1198 |
} |
1199 |
|
1200 |
for(i = 0; i < MAX_PARALLEL_PORTS; i++) { |
1201 |
if (parallel_hds[i]) {
|
1202 |
parallel_init(isa_bus, i, parallel_hds[i]); |
1203 |
} |
1204 |
} |
1205 |
|
1206 |
a20_line = qemu_allocate_irqs(handle_a20_line_change, |
1207 |
x86_env_get_cpu(first_cpu), 2);
|
1208 |
i8042 = isa_create_simple(isa_bus, "i8042");
|
1209 |
i8042_setup_a20_line(i8042, &a20_line[0]);
|
1210 |
if (!no_vmport) {
|
1211 |
vmport_init(isa_bus); |
1212 |
vmmouse = isa_try_create(isa_bus, "vmmouse");
|
1213 |
} else {
|
1214 |
vmmouse = NULL;
|
1215 |
} |
1216 |
if (vmmouse) {
|
1217 |
DeviceState *dev = DEVICE(vmmouse); |
1218 |
qdev_prop_set_ptr(dev, "ps2_mouse", i8042);
|
1219 |
qdev_init_nofail(dev); |
1220 |
} |
1221 |
port92 = isa_create_simple(isa_bus, "port92");
|
1222 |
port92_init(port92, &a20_line[1]);
|
1223 |
|
1224 |
cpu_exit_irq = qemu_allocate_irqs(cpu_request_exit, NULL, 1); |
1225 |
DMA_init(0, cpu_exit_irq);
|
1226 |
|
1227 |
for(i = 0; i < MAX_FD; i++) { |
1228 |
fd[i] = drive_get(IF_FLOPPY, 0, i);
|
1229 |
} |
1230 |
*floppy = fdctrl_init_isa(isa_bus, fd); |
1231 |
} |
1232 |
|
1233 |
void pc_nic_init(ISABus *isa_bus, PCIBus *pci_bus)
|
1234 |
{ |
1235 |
int i;
|
1236 |
|
1237 |
for (i = 0; i < nb_nics; i++) { |
1238 |
NICInfo *nd = &nd_table[i]; |
1239 |
|
1240 |
if (!pci_bus || (nd->model && strcmp(nd->model, "ne2k_isa") == 0)) { |
1241 |
pc_init_ne2k_isa(isa_bus, nd); |
1242 |
} else {
|
1243 |
pci_nic_init_nofail(nd, "e1000", NULL); |
1244 |
} |
1245 |
} |
1246 |
} |
1247 |
|
1248 |
void pc_pci_device_init(PCIBus *pci_bus)
|
1249 |
{ |
1250 |
int max_bus;
|
1251 |
int bus;
|
1252 |
|
1253 |
max_bus = drive_get_max_bus(IF_SCSI); |
1254 |
for (bus = 0; bus <= max_bus; bus++) { |
1255 |
pci_create_simple(pci_bus, -1, "lsi53c895a"); |
1256 |
} |
1257 |
} |
1258 |
|
1259 |
void ioapic_init_gsi(GSIState *gsi_state, const char *parent_name) |
1260 |
{ |
1261 |
DeviceState *dev; |
1262 |
SysBusDevice *d; |
1263 |
unsigned int i; |
1264 |
|
1265 |
if (kvm_irqchip_in_kernel()) {
|
1266 |
dev = qdev_create(NULL, "kvm-ioapic"); |
1267 |
} else {
|
1268 |
dev = qdev_create(NULL, "ioapic"); |
1269 |
} |
1270 |
if (parent_name) {
|
1271 |
object_property_add_child(object_resolve_path(parent_name, NULL),
|
1272 |
"ioapic", OBJECT(dev), NULL); |
1273 |
} |
1274 |
qdev_init_nofail(dev); |
1275 |
d = SYS_BUS_DEVICE(dev); |
1276 |
sysbus_mmio_map(d, 0, IO_APIC_DEFAULT_ADDRESS);
|
1277 |
|
1278 |
for (i = 0; i < IOAPIC_NUM_PINS; i++) { |
1279 |
gsi_state->ioapic_irq[i] = qdev_get_gpio_in(dev, i); |
1280 |
} |
1281 |
} |