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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.h" |
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#include "pc.h" |
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#include "fdc.h" |
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#include "pci.h" |
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#include "vmware_vga.h" |
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#include "usb-uhci.h" |
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#include "usb-ohci.h" |
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#include "prep_pci.h" |
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#include "apb_pci.h" |
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#include "block.h" |
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#include "sysemu.h" |
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#include "audio/audio.h" |
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#include "net.h" |
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#include "smbus.h" |
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#include "boards.h" |
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#include "monitor.h" |
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#include "fw_cfg.h" |
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#include "hpet_emul.h" |
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#include "watchdog.h" |
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#include "smbios.h" |
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#include "ide.h" |
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#include "loader.h" |
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#include "elf.h" |
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#include "multiboot.h" |
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|
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/* output Bochs bios info messages */
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//#define DEBUG_BIOS
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#define BIOS_FILENAME "bios.bin" |
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#define PC_MAX_BIOS_SIZE (4 * 1024 * 1024) |
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|
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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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|
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#define MAX_IDE_BUS 2 |
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|
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static fdctrl_t *floppy_controller;
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static RTCState *rtc_state;
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static PITState *pit;
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static PCII440FXState *i440fx_state;
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|
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typedef struct isa_irq_state { |
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qemu_irq *i8259; |
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qemu_irq *ioapic; |
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} IsaIrqState; |
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static void isa_irq_handler(void *opaque, int n, int level) |
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{ |
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IsaIrqState *isa = (IsaIrqState *)opaque; |
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if (n < 16) { |
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qemu_set_irq(isa->i8259[n], level); |
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} |
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if (isa->ioapic)
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qemu_set_irq(isa->ioapic[n], level); |
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}; |
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|
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static void ioport80_write(void *opaque, uint32_t addr, uint32_t data) |
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{ |
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} |
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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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/* 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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|
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static void ioportF0_write(void *opaque, uint32_t addr, uint32_t data) |
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{ |
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qemu_irq_lower(ferr_irq); |
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} |
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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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|
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/* SMM support */
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void cpu_smm_update(CPUState *env)
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{ |
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if (i440fx_state && env == first_cpu)
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i440fx_set_smm(i440fx_state, (env->hflags >> HF_SMM_SHIFT) & 1);
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} |
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|
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|
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/* IRQ handling */
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int cpu_get_pic_interrupt(CPUState *env)
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{ |
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int intno;
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intno = apic_get_interrupt(env); |
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if (intno >= 0) { |
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/* set irq request if a PIC irq is still pending */
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/* XXX: improve that */
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pic_update_irq(isa_pic); |
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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))
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return -1; |
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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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CPUState *env = first_cpu; |
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if (env->apic_state) {
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while (env) {
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if (apic_accept_pic_intr(env))
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apic_deliver_pic_intr(env, level); |
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env = env->next_cpu; |
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} |
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} else {
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if (level)
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cpu_interrupt(env, CPU_INTERRUPT_HARD); |
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else
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cpu_reset_interrupt(env, 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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|
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#define REG_EQUIPMENT_BYTE 0x14 |
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static int cmos_get_fd_drive_type(int fd0) |
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{ |
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int val;
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switch (fd0) {
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case 0: |
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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 1: |
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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 2: |
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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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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(int type_ofs, int info_ofs, BlockDriverState *hd) |
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{ |
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RTCState *s = rtc_state; |
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int cylinders, heads, sectors;
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bdrv_get_geometry_hint(hd, &cylinders, &heads, §ors); |
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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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/* copy/pasted from cmos_init, should be made a general function
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and used there as well */
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static int pc_boot_set(void *opaque, const char *boot_device) |
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{ |
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Monitor *mon = cur_mon; |
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#define PC_MAX_BOOT_DEVICES 3 |
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RTCState *s = (RTCState *)opaque; |
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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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monitor_printf(mon, "Too many boot devices for PC\n");
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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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monitor_printf(mon, "Invalid boot device for PC: '%c'\n",
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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)); |
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return(0); |
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} |
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/* hd_table must contain 4 block drivers */
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static void cmos_init(ram_addr_t ram_size, ram_addr_t above_4g_mem_size, |
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const char *boot_device, DriveInfo **hd_table) |
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{ |
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RTCState *s = rtc_state; |
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int nbds, bds[3] = { 0, }; |
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int val;
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int fd0, fd1, nb;
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int i;
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/* various important CMOS locations needed by PC/Bochs bios */
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/* memory size */
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val = 640; /* base memory in K */ |
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rtc_set_memory(s, 0x15, val);
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rtc_set_memory(s, 0x16, val >> 8); |
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val = (ram_size / 1024) - 1024; |
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if (val > 65535) |
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val = 65535;
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rtc_set_memory(s, 0x17, val);
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rtc_set_memory(s, 0x18, val >> 8); |
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rtc_set_memory(s, 0x30, val);
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rtc_set_memory(s, 0x31, val >> 8); |
269 |
|
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if (above_4g_mem_size) {
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rtc_set_memory(s, 0x5b, (unsigned int)above_4g_mem_size >> 16); |
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rtc_set_memory(s, 0x5c, (unsigned int)above_4g_mem_size >> 24); |
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rtc_set_memory(s, 0x5d, (uint64_t)above_4g_mem_size >> 32); |
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} |
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|
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if (ram_size > (16 * 1024 * 1024)) |
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val = (ram_size / 65536) - ((16 * 1024 * 1024) / 65536); |
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else
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val = 0;
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if (val > 65535) |
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val = 65535;
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rtc_set_memory(s, 0x34, val);
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rtc_set_memory(s, 0x35, val >> 8); |
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|
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/* set the number of CPU */
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rtc_set_memory(s, 0x5f, smp_cpus - 1); |
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|
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/* set boot devices, and disable floppy signature check if requested */
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#define PC_MAX_BOOT_DEVICES 3 |
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nbds = strlen(boot_device); |
291 |
if (nbds > PC_MAX_BOOT_DEVICES) {
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fprintf(stderr, "Too many boot devices for PC\n");
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exit(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]); |
297 |
if (bds[i] == 0) { |
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fprintf(stderr, "Invalid boot device for PC: '%c'\n",
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boot_device[i]); |
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exit(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)); |
305 |
|
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/* floppy type */
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|
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fd0 = fdctrl_get_drive_type(floppy_controller, 0);
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fd1 = fdctrl_get_drive_type(floppy_controller, 1);
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|
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val = (cmos_get_fd_drive_type(fd0) << 4) | cmos_get_fd_drive_type(fd1);
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rtc_set_memory(s, 0x10, val);
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|
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val = 0;
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nb = 0;
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if (fd0 < 3) |
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nb++; |
318 |
if (fd1 < 3) |
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nb++; |
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switch (nb) {
|
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case 0: |
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break;
|
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case 1: |
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val |= 0x01; /* 1 drive, ready for boot */ |
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break;
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case 2: |
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val |= 0x41; /* 2 drives, ready for boot */ |
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break;
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} |
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val |= 0x02; /* FPU is there */ |
331 |
val |= 0x04; /* PS/2 mouse installed */ |
332 |
rtc_set_memory(s, REG_EQUIPMENT_BYTE, val); |
333 |
|
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/* hard drives */
|
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|
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rtc_set_memory(s, 0x12, (hd_table[0] ? 0xf0 : 0) | (hd_table[1] ? 0x0f : 0)); |
337 |
if (hd_table[0]) |
338 |
cmos_init_hd(0x19, 0x1b, hd_table[0]->bdrv); |
339 |
if (hd_table[1]) |
340 |
cmos_init_hd(0x1a, 0x24, hd_table[1]->bdrv); |
341 |
|
342 |
val = 0;
|
343 |
for (i = 0; i < 4; i++) { |
344 |
if (hd_table[i]) {
|
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int cylinders, heads, sectors, translation;
|
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/* NOTE: bdrv_get_geometry_hint() returns the physical
|
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geometry. It is always such that: 1 <= sects <= 63, 1
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348 |
<= heads <= 16, 1 <= cylinders <= 16383. The BIOS
|
349 |
geometry can be different if a translation is done. */
|
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translation = bdrv_get_translation_hint(hd_table[i]->bdrv); |
351 |
if (translation == BIOS_ATA_TRANSLATION_AUTO) {
|
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bdrv_get_geometry_hint(hd_table[i]->bdrv, &cylinders, &heads, §ors); |
353 |
if (cylinders <= 1024 && heads <= 16 && sectors <= 63) { |
354 |
/* No translation. */
|
355 |
translation = 0;
|
356 |
} else {
|
357 |
/* LBA translation. */
|
358 |
translation = 1;
|
359 |
} |
360 |
} else {
|
361 |
translation--; |
362 |
} |
363 |
val |= translation << (i * 2);
|
364 |
} |
365 |
} |
366 |
rtc_set_memory(s, 0x39, val);
|
367 |
} |
368 |
|
369 |
void ioport_set_a20(int enable) |
370 |
{ |
371 |
/* XXX: send to all CPUs ? */
|
372 |
cpu_x86_set_a20(first_cpu, enable); |
373 |
} |
374 |
|
375 |
int ioport_get_a20(void) |
376 |
{ |
377 |
return ((first_cpu->a20_mask >> 20) & 1); |
378 |
} |
379 |
|
380 |
static void ioport92_write(void *opaque, uint32_t addr, uint32_t val) |
381 |
{ |
382 |
ioport_set_a20((val >> 1) & 1); |
383 |
/* XXX: bit 0 is fast reset */
|
384 |
} |
385 |
|
386 |
static uint32_t ioport92_read(void *opaque, uint32_t addr) |
387 |
{ |
388 |
return ioport_get_a20() << 1; |
389 |
} |
390 |
|
391 |
/***********************************************************/
|
392 |
/* Bochs BIOS debug ports */
|
393 |
|
394 |
static void bochs_bios_write(void *opaque, uint32_t addr, uint32_t val) |
395 |
{ |
396 |
static const char shutdown_str[8] = "Shutdown"; |
397 |
static int shutdown_index = 0; |
398 |
|
399 |
switch(addr) {
|
400 |
/* Bochs BIOS messages */
|
401 |
case 0x400: |
402 |
case 0x401: |
403 |
fprintf(stderr, "BIOS panic at rombios.c, line %d\n", val);
|
404 |
exit(1);
|
405 |
case 0x402: |
406 |
case 0x403: |
407 |
#ifdef DEBUG_BIOS
|
408 |
fprintf(stderr, "%c", val);
|
409 |
#endif
|
410 |
break;
|
411 |
case 0x8900: |
412 |
/* same as Bochs power off */
|
413 |
if (val == shutdown_str[shutdown_index]) {
|
414 |
shutdown_index++; |
415 |
if (shutdown_index == 8) { |
416 |
shutdown_index = 0;
|
417 |
qemu_system_shutdown_request(); |
418 |
} |
419 |
} else {
|
420 |
shutdown_index = 0;
|
421 |
} |
422 |
break;
|
423 |
|
424 |
/* LGPL'ed VGA BIOS messages */
|
425 |
case 0x501: |
426 |
case 0x502: |
427 |
fprintf(stderr, "VGA BIOS panic, line %d\n", val);
|
428 |
exit(1);
|
429 |
case 0x500: |
430 |
case 0x503: |
431 |
#ifdef DEBUG_BIOS
|
432 |
fprintf(stderr, "%c", val);
|
433 |
#endif
|
434 |
break;
|
435 |
} |
436 |
} |
437 |
|
438 |
static void *bochs_bios_init(void) |
439 |
{ |
440 |
void *fw_cfg;
|
441 |
uint8_t *smbios_table; |
442 |
size_t smbios_len; |
443 |
uint64_t *numa_fw_cfg; |
444 |
int i, j;
|
445 |
|
446 |
register_ioport_write(0x400, 1, 2, bochs_bios_write, NULL); |
447 |
register_ioport_write(0x401, 1, 2, bochs_bios_write, NULL); |
448 |
register_ioport_write(0x402, 1, 1, bochs_bios_write, NULL); |
449 |
register_ioport_write(0x403, 1, 1, bochs_bios_write, NULL); |
450 |
register_ioport_write(0x8900, 1, 1, bochs_bios_write, NULL); |
451 |
|
452 |
register_ioport_write(0x501, 1, 2, bochs_bios_write, NULL); |
453 |
register_ioport_write(0x502, 1, 2, bochs_bios_write, NULL); |
454 |
register_ioport_write(0x500, 1, 1, bochs_bios_write, NULL); |
455 |
register_ioport_write(0x503, 1, 1, bochs_bios_write, NULL); |
456 |
|
457 |
fw_cfg = fw_cfg_init(BIOS_CFG_IOPORT, BIOS_CFG_IOPORT + 1, 0, 0); |
458 |
|
459 |
fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
|
460 |
fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size); |
461 |
fw_cfg_add_bytes(fw_cfg, FW_CFG_ACPI_TABLES, (uint8_t *)acpi_tables, |
462 |
acpi_tables_len); |
463 |
fw_cfg_add_bytes(fw_cfg, FW_CFG_IRQ0_OVERRIDE, &irq0override, 1);
|
464 |
|
465 |
smbios_table = smbios_get_table(&smbios_len); |
466 |
if (smbios_table)
|
467 |
fw_cfg_add_bytes(fw_cfg, FW_CFG_SMBIOS_ENTRIES, |
468 |
smbios_table, smbios_len); |
469 |
|
470 |
/* allocate memory for the NUMA channel: one (64bit) word for the number
|
471 |
* of nodes, one word for each VCPU->node and one word for each node to
|
472 |
* hold the amount of memory.
|
473 |
*/
|
474 |
numa_fw_cfg = qemu_mallocz((1 + smp_cpus + nb_numa_nodes) * 8); |
475 |
numa_fw_cfg[0] = cpu_to_le64(nb_numa_nodes);
|
476 |
for (i = 0; i < smp_cpus; i++) { |
477 |
for (j = 0; j < nb_numa_nodes; j++) { |
478 |
if (node_cpumask[j] & (1 << i)) { |
479 |
numa_fw_cfg[i + 1] = cpu_to_le64(j);
|
480 |
break;
|
481 |
} |
482 |
} |
483 |
} |
484 |
for (i = 0; i < nb_numa_nodes; i++) { |
485 |
numa_fw_cfg[smp_cpus + 1 + i] = cpu_to_le64(node_mem[i]);
|
486 |
} |
487 |
fw_cfg_add_bytes(fw_cfg, FW_CFG_NUMA, (uint8_t *)numa_fw_cfg, |
488 |
(1 + smp_cpus + nb_numa_nodes) * 8); |
489 |
|
490 |
return fw_cfg;
|
491 |
} |
492 |
|
493 |
static long get_file_size(FILE *f) |
494 |
{ |
495 |
long where, size;
|
496 |
|
497 |
/* XXX: on Unix systems, using fstat() probably makes more sense */
|
498 |
|
499 |
where = ftell(f); |
500 |
fseek(f, 0, SEEK_END);
|
501 |
size = ftell(f); |
502 |
fseek(f, where, SEEK_SET); |
503 |
|
504 |
return size;
|
505 |
} |
506 |
|
507 |
static void load_linux(void *fw_cfg, |
508 |
const char *kernel_filename, |
509 |
const char *initrd_filename, |
510 |
const char *kernel_cmdline, |
511 |
target_phys_addr_t max_ram_size) |
512 |
{ |
513 |
uint16_t protocol; |
514 |
int setup_size, kernel_size, initrd_size = 0, cmdline_size; |
515 |
uint32_t initrd_max; |
516 |
uint8_t header[8192], *setup, *kernel, *initrd_data;
|
517 |
target_phys_addr_t real_addr, prot_addr, cmdline_addr, initrd_addr = 0;
|
518 |
FILE *f; |
519 |
char *vmode;
|
520 |
|
521 |
/* Align to 16 bytes as a paranoia measure */
|
522 |
cmdline_size = (strlen(kernel_cmdline)+16) & ~15; |
523 |
|
524 |
/* load the kernel header */
|
525 |
f = fopen(kernel_filename, "rb");
|
526 |
if (!f || !(kernel_size = get_file_size(f)) ||
|
527 |
fread(header, 1, MIN(ARRAY_SIZE(header), kernel_size), f) !=
|
528 |
MIN(ARRAY_SIZE(header), kernel_size)) { |
529 |
fprintf(stderr, "qemu: could not load kernel '%s': %s\n",
|
530 |
kernel_filename, strerror(errno)); |
531 |
exit(1);
|
532 |
} |
533 |
|
534 |
/* kernel protocol version */
|
535 |
#if 0
|
536 |
fprintf(stderr, "header magic: %#x\n", ldl_p(header+0x202));
|
537 |
#endif
|
538 |
if (ldl_p(header+0x202) == 0x53726448) |
539 |
protocol = lduw_p(header+0x206);
|
540 |
else {
|
541 |
/* This looks like a multiboot kernel. If it is, let's stop
|
542 |
treating it like a Linux kernel. */
|
543 |
if (load_multiboot(fw_cfg, f, kernel_filename, initrd_filename,
|
544 |
kernel_cmdline, kernel_size, header)) |
545 |
return;
|
546 |
protocol = 0;
|
547 |
} |
548 |
|
549 |
if (protocol < 0x200 || !(header[0x211] & 0x01)) { |
550 |
/* Low kernel */
|
551 |
real_addr = 0x90000;
|
552 |
cmdline_addr = 0x9a000 - cmdline_size;
|
553 |
prot_addr = 0x10000;
|
554 |
} else if (protocol < 0x202) { |
555 |
/* High but ancient kernel */
|
556 |
real_addr = 0x90000;
|
557 |
cmdline_addr = 0x9a000 - cmdline_size;
|
558 |
prot_addr = 0x100000;
|
559 |
} else {
|
560 |
/* High and recent kernel */
|
561 |
real_addr = 0x10000;
|
562 |
cmdline_addr = 0x20000;
|
563 |
prot_addr = 0x100000;
|
564 |
} |
565 |
|
566 |
#if 0
|
567 |
fprintf(stderr,
|
568 |
"qemu: real_addr = 0x" TARGET_FMT_plx "\n"
|
569 |
"qemu: cmdline_addr = 0x" TARGET_FMT_plx "\n"
|
570 |
"qemu: prot_addr = 0x" TARGET_FMT_plx "\n",
|
571 |
real_addr,
|
572 |
cmdline_addr,
|
573 |
prot_addr);
|
574 |
#endif
|
575 |
|
576 |
/* highest address for loading the initrd */
|
577 |
if (protocol >= 0x203) |
578 |
initrd_max = ldl_p(header+0x22c);
|
579 |
else
|
580 |
initrd_max = 0x37ffffff;
|
581 |
|
582 |
if (initrd_max >= max_ram_size-ACPI_DATA_SIZE)
|
583 |
initrd_max = max_ram_size-ACPI_DATA_SIZE-1;
|
584 |
|
585 |
fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_ADDR, cmdline_addr); |
586 |
fw_cfg_add_i32(fw_cfg, FW_CFG_CMDLINE_SIZE, strlen(kernel_cmdline)+1);
|
587 |
fw_cfg_add_bytes(fw_cfg, FW_CFG_CMDLINE_DATA, |
588 |
(uint8_t*)strdup(kernel_cmdline), |
589 |
strlen(kernel_cmdline)+1);
|
590 |
|
591 |
if (protocol >= 0x202) { |
592 |
stl_p(header+0x228, cmdline_addr);
|
593 |
} else {
|
594 |
stw_p(header+0x20, 0xA33F); |
595 |
stw_p(header+0x22, cmdline_addr-real_addr);
|
596 |
} |
597 |
|
598 |
/* handle vga= parameter */
|
599 |
vmode = strstr(kernel_cmdline, "vga=");
|
600 |
if (vmode) {
|
601 |
unsigned int video_mode; |
602 |
/* skip "vga=" */
|
603 |
vmode += 4;
|
604 |
if (!strncmp(vmode, "normal", 6)) { |
605 |
video_mode = 0xffff;
|
606 |
} else if (!strncmp(vmode, "ext", 3)) { |
607 |
video_mode = 0xfffe;
|
608 |
} else if (!strncmp(vmode, "ask", 3)) { |
609 |
video_mode = 0xfffd;
|
610 |
} else {
|
611 |
video_mode = strtol(vmode, NULL, 0); |
612 |
} |
613 |
stw_p(header+0x1fa, video_mode);
|
614 |
} |
615 |
|
616 |
/* loader type */
|
617 |
/* High nybble = B reserved for Qemu; low nybble is revision number.
|
618 |
If this code is substantially changed, you may want to consider
|
619 |
incrementing the revision. */
|
620 |
if (protocol >= 0x200) |
621 |
header[0x210] = 0xB0; |
622 |
|
623 |
/* heap */
|
624 |
if (protocol >= 0x201) { |
625 |
header[0x211] |= 0x80; /* CAN_USE_HEAP */ |
626 |
stw_p(header+0x224, cmdline_addr-real_addr-0x200); |
627 |
} |
628 |
|
629 |
/* load initrd */
|
630 |
if (initrd_filename) {
|
631 |
if (protocol < 0x200) { |
632 |
fprintf(stderr, "qemu: linux kernel too old to load a ram disk\n");
|
633 |
exit(1);
|
634 |
} |
635 |
|
636 |
initrd_size = get_image_size(initrd_filename); |
637 |
initrd_addr = (initrd_max-initrd_size) & ~4095;
|
638 |
|
639 |
initrd_data = qemu_malloc(initrd_size); |
640 |
load_image(initrd_filename, initrd_data); |
641 |
|
642 |
fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_addr); |
643 |
fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size); |
644 |
fw_cfg_add_bytes(fw_cfg, FW_CFG_INITRD_DATA, initrd_data, initrd_size); |
645 |
|
646 |
stl_p(header+0x218, initrd_addr);
|
647 |
stl_p(header+0x21c, initrd_size);
|
648 |
} |
649 |
|
650 |
/* load kernel and setup */
|
651 |
setup_size = header[0x1f1];
|
652 |
if (setup_size == 0) |
653 |
setup_size = 4;
|
654 |
setup_size = (setup_size+1)*512; |
655 |
kernel_size -= setup_size; |
656 |
|
657 |
setup = qemu_malloc(setup_size); |
658 |
kernel = qemu_malloc(kernel_size); |
659 |
fseek(f, 0, SEEK_SET);
|
660 |
if (fread(setup, 1, setup_size, f) != setup_size) { |
661 |
fprintf(stderr, "fread() failed\n");
|
662 |
exit(1);
|
663 |
} |
664 |
if (fread(kernel, 1, kernel_size, f) != kernel_size) { |
665 |
fprintf(stderr, "fread() failed\n");
|
666 |
exit(1);
|
667 |
} |
668 |
fclose(f); |
669 |
memcpy(setup, header, MIN(sizeof(header), setup_size));
|
670 |
|
671 |
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, prot_addr); |
672 |
fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size); |
673 |
fw_cfg_add_bytes(fw_cfg, FW_CFG_KERNEL_DATA, kernel, kernel_size); |
674 |
|
675 |
fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_ADDR, real_addr); |
676 |
fw_cfg_add_i32(fw_cfg, FW_CFG_SETUP_SIZE, setup_size); |
677 |
fw_cfg_add_bytes(fw_cfg, FW_CFG_SETUP_DATA, setup, setup_size); |
678 |
|
679 |
option_rom[nb_option_roms] = "linuxboot.bin";
|
680 |
nb_option_roms++; |
681 |
} |
682 |
|
683 |
static const int ide_iobase[2] = { 0x1f0, 0x170 }; |
684 |
static const int ide_iobase2[2] = { 0x3f6, 0x376 }; |
685 |
static const int ide_irq[2] = { 14, 15 }; |
686 |
|
687 |
#define NE2000_NB_MAX 6 |
688 |
|
689 |
static const int ne2000_io[NE2000_NB_MAX] = { 0x300, 0x320, 0x340, 0x360, |
690 |
0x280, 0x380 }; |
691 |
static const int ne2000_irq[NE2000_NB_MAX] = { 9, 10, 11, 3, 4, 5 }; |
692 |
|
693 |
static const int parallel_io[MAX_PARALLEL_PORTS] = { 0x378, 0x278, 0x3bc }; |
694 |
static const int parallel_irq[MAX_PARALLEL_PORTS] = { 7, 7, 7 }; |
695 |
|
696 |
#ifdef HAS_AUDIO
|
697 |
static void audio_init (PCIBus *pci_bus, qemu_irq *pic) |
698 |
{ |
699 |
struct soundhw *c;
|
700 |
|
701 |
for (c = soundhw; c->name; ++c) {
|
702 |
if (c->enabled) {
|
703 |
if (c->isa) {
|
704 |
c->init.init_isa(pic); |
705 |
} else {
|
706 |
if (pci_bus) {
|
707 |
c->init.init_pci(pci_bus); |
708 |
} |
709 |
} |
710 |
} |
711 |
} |
712 |
} |
713 |
#endif
|
714 |
|
715 |
static void pc_init_ne2k_isa(NICInfo *nd) |
716 |
{ |
717 |
static int nb_ne2k = 0; |
718 |
|
719 |
if (nb_ne2k == NE2000_NB_MAX)
|
720 |
return;
|
721 |
isa_ne2000_init(ne2000_io[nb_ne2k], |
722 |
ne2000_irq[nb_ne2k], nd); |
723 |
nb_ne2k++; |
724 |
} |
725 |
|
726 |
int cpu_is_bsp(CPUState *env)
|
727 |
{ |
728 |
return env->cpuid_apic_id == 0; |
729 |
} |
730 |
|
731 |
static CPUState *pc_new_cpu(const char *cpu_model) |
732 |
{ |
733 |
CPUState *env; |
734 |
|
735 |
env = cpu_init(cpu_model); |
736 |
if (!env) {
|
737 |
fprintf(stderr, "Unable to find x86 CPU definition\n");
|
738 |
exit(1);
|
739 |
} |
740 |
if ((env->cpuid_features & CPUID_APIC) || smp_cpus > 1) { |
741 |
env->cpuid_apic_id = env->cpu_index; |
742 |
/* APIC reset callback resets cpu */
|
743 |
apic_init(env); |
744 |
} else {
|
745 |
qemu_register_reset((QEMUResetHandler*)cpu_reset, env); |
746 |
} |
747 |
return env;
|
748 |
} |
749 |
|
750 |
/* PC hardware initialisation */
|
751 |
static void pc_init1(ram_addr_t ram_size, |
752 |
const char *boot_device, |
753 |
const char *kernel_filename, |
754 |
const char *kernel_cmdline, |
755 |
const char *initrd_filename, |
756 |
const char *cpu_model, |
757 |
int pci_enabled)
|
758 |
{ |
759 |
char *filename;
|
760 |
int ret, linux_boot, i;
|
761 |
ram_addr_t ram_addr, bios_offset, option_rom_offset; |
762 |
ram_addr_t below_4g_mem_size, above_4g_mem_size = 0;
|
763 |
int bios_size, isa_bios_size;
|
764 |
PCIBus *pci_bus; |
765 |
ISADevice *isa_dev; |
766 |
int piix3_devfn = -1; |
767 |
CPUState *env; |
768 |
qemu_irq *cpu_irq; |
769 |
qemu_irq *isa_irq; |
770 |
qemu_irq *i8259; |
771 |
IsaIrqState *isa_irq_state; |
772 |
DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; |
773 |
DriveInfo *fd[MAX_FD]; |
774 |
void *fw_cfg;
|
775 |
|
776 |
if (ram_size >= 0xe0000000 ) { |
777 |
above_4g_mem_size = ram_size - 0xe0000000;
|
778 |
below_4g_mem_size = 0xe0000000;
|
779 |
} else {
|
780 |
below_4g_mem_size = ram_size; |
781 |
} |
782 |
|
783 |
linux_boot = (kernel_filename != NULL);
|
784 |
|
785 |
/* init CPUs */
|
786 |
if (cpu_model == NULL) { |
787 |
#ifdef TARGET_X86_64
|
788 |
cpu_model = "qemu64";
|
789 |
#else
|
790 |
cpu_model = "qemu32";
|
791 |
#endif
|
792 |
} |
793 |
|
794 |
for (i = 0; i < smp_cpus; i++) { |
795 |
env = pc_new_cpu(cpu_model); |
796 |
} |
797 |
|
798 |
vmport_init(); |
799 |
|
800 |
/* allocate RAM */
|
801 |
ram_addr = qemu_ram_alloc(0xa0000);
|
802 |
cpu_register_physical_memory(0, 0xa0000, ram_addr); |
803 |
|
804 |
/* Allocate, even though we won't register, so we don't break the
|
805 |
* phys_ram_base + PA assumption. This range includes vga (0xa0000 - 0xc0000),
|
806 |
* and some bios areas, which will be registered later
|
807 |
*/
|
808 |
ram_addr = qemu_ram_alloc(0x100000 - 0xa0000); |
809 |
ram_addr = qemu_ram_alloc(below_4g_mem_size - 0x100000);
|
810 |
cpu_register_physical_memory(0x100000,
|
811 |
below_4g_mem_size - 0x100000,
|
812 |
ram_addr); |
813 |
|
814 |
/* above 4giga memory allocation */
|
815 |
if (above_4g_mem_size > 0) { |
816 |
#if TARGET_PHYS_ADDR_BITS == 32 |
817 |
hw_error("To much RAM for 32-bit physical address");
|
818 |
#else
|
819 |
ram_addr = qemu_ram_alloc(above_4g_mem_size); |
820 |
cpu_register_physical_memory(0x100000000ULL,
|
821 |
above_4g_mem_size, |
822 |
ram_addr); |
823 |
#endif
|
824 |
} |
825 |
|
826 |
|
827 |
/* BIOS load */
|
828 |
if (bios_name == NULL) |
829 |
bios_name = BIOS_FILENAME; |
830 |
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); |
831 |
if (filename) {
|
832 |
bios_size = get_image_size(filename); |
833 |
} else {
|
834 |
bios_size = -1;
|
835 |
} |
836 |
if (bios_size <= 0 || |
837 |
(bios_size % 65536) != 0) { |
838 |
goto bios_error;
|
839 |
} |
840 |
bios_offset = qemu_ram_alloc(bios_size); |
841 |
ret = rom_add_file_fixed(bios_name, (uint32_t)(-bios_size)); |
842 |
if (ret != 0) { |
843 |
bios_error:
|
844 |
fprintf(stderr, "qemu: could not load PC BIOS '%s'\n", bios_name);
|
845 |
exit(1);
|
846 |
} |
847 |
if (filename) {
|
848 |
qemu_free(filename); |
849 |
} |
850 |
/* map the last 128KB of the BIOS in ISA space */
|
851 |
isa_bios_size = bios_size; |
852 |
if (isa_bios_size > (128 * 1024)) |
853 |
isa_bios_size = 128 * 1024; |
854 |
cpu_register_physical_memory(0x100000 - isa_bios_size,
|
855 |
isa_bios_size, |
856 |
(bios_offset + bios_size - isa_bios_size) | IO_MEM_ROM); |
857 |
|
858 |
|
859 |
|
860 |
rom_enable_driver_roms = 1;
|
861 |
option_rom_offset = qemu_ram_alloc(PC_ROM_SIZE); |
862 |
cpu_register_physical_memory(PC_ROM_MIN_VGA, PC_ROM_SIZE, option_rom_offset); |
863 |
|
864 |
/* map all the bios at the top of memory */
|
865 |
cpu_register_physical_memory((uint32_t)(-bios_size), |
866 |
bios_size, bios_offset | IO_MEM_ROM); |
867 |
|
868 |
fw_cfg = bochs_bios_init(); |
869 |
rom_set_fw(fw_cfg); |
870 |
|
871 |
if (linux_boot) {
|
872 |
load_linux(fw_cfg, kernel_filename, initrd_filename, kernel_cmdline, below_4g_mem_size); |
873 |
} |
874 |
|
875 |
for (i = 0; i < nb_option_roms; i++) { |
876 |
rom_add_option(option_rom[i]); |
877 |
} |
878 |
|
879 |
cpu_irq = qemu_allocate_irqs(pic_irq_request, NULL, 1); |
880 |
i8259 = i8259_init(cpu_irq[0]);
|
881 |
isa_irq_state = qemu_mallocz(sizeof(*isa_irq_state));
|
882 |
isa_irq_state->i8259 = i8259; |
883 |
isa_irq = qemu_allocate_irqs(isa_irq_handler, isa_irq_state, 24);
|
884 |
|
885 |
if (pci_enabled) {
|
886 |
pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, isa_irq); |
887 |
} else {
|
888 |
pci_bus = NULL;
|
889 |
isa_bus_new(NULL);
|
890 |
} |
891 |
isa_bus_irqs(isa_irq); |
892 |
|
893 |
ferr_irq = isa_reserve_irq(13);
|
894 |
|
895 |
/* init basic PC hardware */
|
896 |
register_ioport_write(0x80, 1, 1, ioport80_write, NULL); |
897 |
|
898 |
register_ioport_write(0xf0, 1, 1, ioportF0_write, NULL); |
899 |
|
900 |
if (cirrus_vga_enabled) {
|
901 |
if (pci_enabled) {
|
902 |
pci_cirrus_vga_init(pci_bus); |
903 |
} else {
|
904 |
isa_cirrus_vga_init(); |
905 |
} |
906 |
} else if (vmsvga_enabled) { |
907 |
if (pci_enabled)
|
908 |
pci_vmsvga_init(pci_bus); |
909 |
else
|
910 |
fprintf(stderr, "%s: vmware_vga: no PCI bus\n", __FUNCTION__);
|
911 |
} else if (std_vga_enabled) { |
912 |
if (pci_enabled) {
|
913 |
pci_vga_init(pci_bus, 0, 0); |
914 |
} else {
|
915 |
isa_vga_init(); |
916 |
} |
917 |
} |
918 |
|
919 |
rtc_state = rtc_init(2000);
|
920 |
|
921 |
qemu_register_boot_set(pc_boot_set, rtc_state); |
922 |
|
923 |
register_ioport_read(0x92, 1, 1, ioport92_read, NULL); |
924 |
register_ioport_write(0x92, 1, 1, ioport92_write, NULL); |
925 |
|
926 |
if (pci_enabled) {
|
927 |
isa_irq_state->ioapic = ioapic_init(); |
928 |
} |
929 |
pit = pit_init(0x40, isa_reserve_irq(0)); |
930 |
pcspk_init(pit); |
931 |
if (!no_hpet) {
|
932 |
hpet_init(isa_irq); |
933 |
} |
934 |
|
935 |
for(i = 0; i < MAX_SERIAL_PORTS; i++) { |
936 |
if (serial_hds[i]) {
|
937 |
serial_isa_init(i, serial_hds[i]); |
938 |
} |
939 |
} |
940 |
|
941 |
for(i = 0; i < MAX_PARALLEL_PORTS; i++) { |
942 |
if (parallel_hds[i]) {
|
943 |
parallel_init(i, parallel_hds[i]); |
944 |
} |
945 |
} |
946 |
|
947 |
for(i = 0; i < nb_nics; i++) { |
948 |
NICInfo *nd = &nd_table[i]; |
949 |
|
950 |
if (!pci_enabled || (nd->model && strcmp(nd->model, "ne2k_isa") == 0)) |
951 |
pc_init_ne2k_isa(nd); |
952 |
else
|
953 |
pci_nic_init_nofail(nd, "e1000", NULL); |
954 |
} |
955 |
|
956 |
if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
|
957 |
fprintf(stderr, "qemu: too many IDE bus\n");
|
958 |
exit(1);
|
959 |
} |
960 |
|
961 |
for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) { |
962 |
hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS); |
963 |
} |
964 |
|
965 |
if (pci_enabled) {
|
966 |
pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1);
|
967 |
} else {
|
968 |
for(i = 0; i < MAX_IDE_BUS; i++) { |
969 |
isa_ide_init(ide_iobase[i], ide_iobase2[i], ide_irq[i], |
970 |
hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
|
971 |
} |
972 |
} |
973 |
|
974 |
isa_dev = isa_create_simple("i8042");
|
975 |
DMA_init(0);
|
976 |
#ifdef HAS_AUDIO
|
977 |
audio_init(pci_enabled ? pci_bus : NULL, isa_irq);
|
978 |
#endif
|
979 |
|
980 |
for(i = 0; i < MAX_FD; i++) { |
981 |
fd[i] = drive_get(IF_FLOPPY, 0, i);
|
982 |
} |
983 |
floppy_controller = fdctrl_init_isa(fd); |
984 |
|
985 |
cmos_init(below_4g_mem_size, above_4g_mem_size, boot_device, hd); |
986 |
|
987 |
if (pci_enabled && usb_enabled) {
|
988 |
usb_uhci_piix3_init(pci_bus, piix3_devfn + 2);
|
989 |
} |
990 |
|
991 |
if (pci_enabled && acpi_enabled) {
|
992 |
uint8_t *eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */ |
993 |
i2c_bus *smbus; |
994 |
|
995 |
/* TODO: Populate SPD eeprom data. */
|
996 |
smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100, |
997 |
isa_reserve_irq(9));
|
998 |
for (i = 0; i < 8; i++) { |
999 |
DeviceState *eeprom; |
1000 |
eeprom = qdev_create((BusState *)smbus, "smbus-eeprom");
|
1001 |
qdev_prop_set_uint8(eeprom, "address", 0x50 + i); |
1002 |
qdev_prop_set_ptr(eeprom, "data", eeprom_buf + (i * 256)); |
1003 |
qdev_init_nofail(eeprom); |
1004 |
} |
1005 |
piix4_acpi_system_hot_add_init(pci_bus); |
1006 |
} |
1007 |
|
1008 |
if (i440fx_state) {
|
1009 |
i440fx_init_memory_mappings(i440fx_state); |
1010 |
} |
1011 |
|
1012 |
if (pci_enabled) {
|
1013 |
int max_bus;
|
1014 |
int bus;
|
1015 |
|
1016 |
max_bus = drive_get_max_bus(IF_SCSI); |
1017 |
for (bus = 0; bus <= max_bus; bus++) { |
1018 |
pci_create_simple(pci_bus, -1, "lsi53c895a"); |
1019 |
} |
1020 |
} |
1021 |
} |
1022 |
|
1023 |
static void pc_init_pci(ram_addr_t ram_size, |
1024 |
const char *boot_device, |
1025 |
const char *kernel_filename, |
1026 |
const char *kernel_cmdline, |
1027 |
const char *initrd_filename, |
1028 |
const char *cpu_model) |
1029 |
{ |
1030 |
pc_init1(ram_size, boot_device, |
1031 |
kernel_filename, kernel_cmdline, |
1032 |
initrd_filename, cpu_model, 1);
|
1033 |
} |
1034 |
|
1035 |
static void pc_init_isa(ram_addr_t ram_size, |
1036 |
const char *boot_device, |
1037 |
const char *kernel_filename, |
1038 |
const char *kernel_cmdline, |
1039 |
const char *initrd_filename, |
1040 |
const char *cpu_model) |
1041 |
{ |
1042 |
if (cpu_model == NULL) |
1043 |
cpu_model = "486";
|
1044 |
pc_init1(ram_size, boot_device, |
1045 |
kernel_filename, kernel_cmdline, |
1046 |
initrd_filename, cpu_model, 0);
|
1047 |
} |
1048 |
|
1049 |
/* set CMOS shutdown status register (index 0xF) as S3_resume(0xFE)
|
1050 |
BIOS will read it and start S3 resume at POST Entry */
|
1051 |
void cmos_set_s3_resume(void) |
1052 |
{ |
1053 |
if (rtc_state)
|
1054 |
rtc_set_memory(rtc_state, 0xF, 0xFE); |
1055 |
} |
1056 |
|
1057 |
static QEMUMachine pc_machine = {
|
1058 |
.name = "pc-0.12",
|
1059 |
.alias = "pc",
|
1060 |
.desc = "Standard PC",
|
1061 |
.init = pc_init_pci, |
1062 |
.max_cpus = 255,
|
1063 |
.is_default = 1,
|
1064 |
}; |
1065 |
|
1066 |
static QEMUMachine pc_machine_v0_11 = {
|
1067 |
.name = "pc-0.11",
|
1068 |
.desc = "Standard PC, qemu 0.11",
|
1069 |
.init = pc_init_pci, |
1070 |
.max_cpus = 255,
|
1071 |
.compat_props = (GlobalProperty[]) { |
1072 |
{ |
1073 |
.driver = "virtio-blk-pci",
|
1074 |
.property = "vectors",
|
1075 |
.value = stringify(0),
|
1076 |
},{ |
1077 |
.driver = "ide-drive",
|
1078 |
.property = "ver",
|
1079 |
.value = "0.11",
|
1080 |
},{ |
1081 |
.driver = "scsi-disk",
|
1082 |
.property = "ver",
|
1083 |
.value = "0.11",
|
1084 |
},{ |
1085 |
.driver = "PCI",
|
1086 |
.property = "rombar",
|
1087 |
.value = stringify(0),
|
1088 |
}, |
1089 |
{ /* end of list */ }
|
1090 |
} |
1091 |
}; |
1092 |
|
1093 |
static QEMUMachine pc_machine_v0_10 = {
|
1094 |
.name = "pc-0.10",
|
1095 |
.desc = "Standard PC, qemu 0.10",
|
1096 |
.init = pc_init_pci, |
1097 |
.max_cpus = 255,
|
1098 |
.compat_props = (GlobalProperty[]) { |
1099 |
{ |
1100 |
.driver = "virtio-blk-pci",
|
1101 |
.property = "class",
|
1102 |
.value = stringify(PCI_CLASS_STORAGE_OTHER), |
1103 |
},{ |
1104 |
.driver = "virtio-serial-pci",
|
1105 |
.property = "class",
|
1106 |
.value = stringify(PCI_CLASS_DISPLAY_OTHER), |
1107 |
},{ |
1108 |
.driver = "virtio-net-pci",
|
1109 |
.property = "vectors",
|
1110 |
.value = stringify(0),
|
1111 |
},{ |
1112 |
.driver = "virtio-blk-pci",
|
1113 |
.property = "vectors",
|
1114 |
.value = stringify(0),
|
1115 |
},{ |
1116 |
.driver = "ide-drive",
|
1117 |
.property = "ver",
|
1118 |
.value = "0.10",
|
1119 |
},{ |
1120 |
.driver = "scsi-disk",
|
1121 |
.property = "ver",
|
1122 |
.value = "0.10",
|
1123 |
},{ |
1124 |
.driver = "PCI",
|
1125 |
.property = "rombar",
|
1126 |
.value = stringify(0),
|
1127 |
}, |
1128 |
{ /* end of list */ }
|
1129 |
}, |
1130 |
}; |
1131 |
|
1132 |
static QEMUMachine isapc_machine = {
|
1133 |
.name = "isapc",
|
1134 |
.desc = "ISA-only PC",
|
1135 |
.init = pc_init_isa, |
1136 |
.max_cpus = 1,
|
1137 |
}; |
1138 |
|
1139 |
static void pc_machine_init(void) |
1140 |
{ |
1141 |
qemu_register_machine(&pc_machine); |
1142 |
qemu_register_machine(&pc_machine_v0_11); |
1143 |
qemu_register_machine(&pc_machine_v0_10); |
1144 |
qemu_register_machine(&isapc_machine); |
1145 |
} |
1146 |
|
1147 |
machine_init(pc_machine_init); |