The function is still used as the implementation. Signed-off-by: Avi Kivity <avi@redhat.com>
736 lines
18 KiB
C
736 lines
18 KiB
C
/*
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* QEMU System Emulator
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*
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* Copyright (c) 2003-2008 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 <stdint.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#ifndef _WIN32
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#include <sys/types.h>
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#include <sys/mman.h>
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#endif
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#include "config.h"
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#include "monitor.h"
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#include "sysemu.h"
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#include "arch_init.h"
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#include "audio/audio.h"
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#include "hw/pc.h"
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#include "hw/pci.h"
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#include "hw/audiodev.h"
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#include "kvm.h"
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#include "migration.h"
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#include "net.h"
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#include "gdbstub.h"
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#include "hw/smbios.h"
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#include "exec-memory.h"
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#ifdef TARGET_SPARC
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int graphic_width = 1024;
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int graphic_height = 768;
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int graphic_depth = 8;
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#else
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int graphic_width = 800;
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int graphic_height = 600;
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int graphic_depth = 15;
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#endif
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const char arch_config_name[] = CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf";
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#if defined(TARGET_ALPHA)
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#define QEMU_ARCH QEMU_ARCH_ALPHA
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#elif defined(TARGET_ARM)
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#define QEMU_ARCH QEMU_ARCH_ARM
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#elif defined(TARGET_CRIS)
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#define QEMU_ARCH QEMU_ARCH_CRIS
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#elif defined(TARGET_I386)
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#define QEMU_ARCH QEMU_ARCH_I386
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#elif defined(TARGET_M68K)
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#define QEMU_ARCH QEMU_ARCH_M68K
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#elif defined(TARGET_LM32)
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#define QEMU_ARCH QEMU_ARCH_LM32
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#elif defined(TARGET_MICROBLAZE)
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#define QEMU_ARCH QEMU_ARCH_MICROBLAZE
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#elif defined(TARGET_MIPS)
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#define QEMU_ARCH QEMU_ARCH_MIPS
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#elif defined(TARGET_PPC)
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#define QEMU_ARCH QEMU_ARCH_PPC
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#elif defined(TARGET_S390X)
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#define QEMU_ARCH QEMU_ARCH_S390X
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#elif defined(TARGET_SH4)
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#define QEMU_ARCH QEMU_ARCH_SH4
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#elif defined(TARGET_SPARC)
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#define QEMU_ARCH QEMU_ARCH_SPARC
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#elif defined(TARGET_XTENSA)
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#define QEMU_ARCH QEMU_ARCH_XTENSA
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#endif
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const uint32_t arch_type = QEMU_ARCH;
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/***********************************************************/
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/* ram save/restore */
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#define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
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#define RAM_SAVE_FLAG_COMPRESS 0x02
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#define RAM_SAVE_FLAG_MEM_SIZE 0x04
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#define RAM_SAVE_FLAG_PAGE 0x08
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#define RAM_SAVE_FLAG_EOS 0x10
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#define RAM_SAVE_FLAG_CONTINUE 0x20
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static int is_dup_page(uint8_t *page, uint8_t ch)
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{
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uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
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uint32_t *array = (uint32_t *)page;
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int i;
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for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
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if (array[i] != val) {
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return 0;
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}
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}
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return 1;
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}
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static RAMBlock *last_block;
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static ram_addr_t last_offset;
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static int ram_save_block(QEMUFile *f)
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{
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RAMBlock *block = last_block;
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ram_addr_t offset = last_offset;
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ram_addr_t current_addr;
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int bytes_sent = 0;
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if (!block)
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block = QLIST_FIRST(&ram_list.blocks);
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current_addr = block->offset + offset;
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do {
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if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
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uint8_t *p;
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int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
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cpu_physical_memory_reset_dirty(current_addr,
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current_addr + TARGET_PAGE_SIZE,
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MIGRATION_DIRTY_FLAG);
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p = block->host + offset;
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if (is_dup_page(p, *p)) {
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qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_COMPRESS);
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if (!cont) {
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qemu_put_byte(f, strlen(block->idstr));
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qemu_put_buffer(f, (uint8_t *)block->idstr,
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strlen(block->idstr));
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}
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qemu_put_byte(f, *p);
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bytes_sent = 1;
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} else {
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qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_PAGE);
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if (!cont) {
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qemu_put_byte(f, strlen(block->idstr));
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qemu_put_buffer(f, (uint8_t *)block->idstr,
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strlen(block->idstr));
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}
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qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
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bytes_sent = TARGET_PAGE_SIZE;
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}
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break;
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}
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offset += TARGET_PAGE_SIZE;
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if (offset >= block->length) {
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offset = 0;
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block = QLIST_NEXT(block, next);
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if (!block)
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block = QLIST_FIRST(&ram_list.blocks);
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}
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current_addr = block->offset + offset;
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} while (current_addr != last_block->offset + last_offset);
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last_block = block;
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last_offset = offset;
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return bytes_sent;
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}
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static uint64_t bytes_transferred;
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static ram_addr_t ram_save_remaining(void)
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{
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RAMBlock *block;
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ram_addr_t count = 0;
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QLIST_FOREACH(block, &ram_list.blocks, next) {
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ram_addr_t addr;
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for (addr = block->offset; addr < block->offset + block->length;
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addr += TARGET_PAGE_SIZE) {
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if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) {
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count++;
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}
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}
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}
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return count;
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}
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uint64_t ram_bytes_remaining(void)
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{
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return ram_save_remaining() * TARGET_PAGE_SIZE;
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}
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uint64_t ram_bytes_transferred(void)
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{
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return bytes_transferred;
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}
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uint64_t ram_bytes_total(void)
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{
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RAMBlock *block;
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uint64_t total = 0;
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QLIST_FOREACH(block, &ram_list.blocks, next)
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total += block->length;
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return total;
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}
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static int block_compar(const void *a, const void *b)
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{
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RAMBlock * const *ablock = a;
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RAMBlock * const *bblock = b;
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if ((*ablock)->offset < (*bblock)->offset) {
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return -1;
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} else if ((*ablock)->offset > (*bblock)->offset) {
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return 1;
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}
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return 0;
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}
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static void sort_ram_list(void)
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{
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RAMBlock *block, *nblock, **blocks;
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int n;
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n = 0;
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QLIST_FOREACH(block, &ram_list.blocks, next) {
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++n;
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}
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blocks = g_malloc(n * sizeof *blocks);
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n = 0;
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QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) {
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blocks[n++] = block;
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QLIST_REMOVE(block, next);
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}
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qsort(blocks, n, sizeof *blocks, block_compar);
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while (--n >= 0) {
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QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next);
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}
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g_free(blocks);
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}
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int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
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{
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ram_addr_t addr;
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uint64_t bytes_transferred_last;
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double bwidth = 0;
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uint64_t expected_time = 0;
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int ret;
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if (stage < 0) {
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cpu_physical_memory_set_dirty_tracking(0);
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return 0;
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}
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memory_global_sync_dirty_bitmap(get_system_memory());
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if (stage == 1) {
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RAMBlock *block;
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bytes_transferred = 0;
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last_block = NULL;
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last_offset = 0;
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sort_ram_list();
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/* Make sure all dirty bits are set */
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QLIST_FOREACH(block, &ram_list.blocks, next) {
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for (addr = block->offset; addr < block->offset + block->length;
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addr += TARGET_PAGE_SIZE) {
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if (!cpu_physical_memory_get_dirty(addr,
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MIGRATION_DIRTY_FLAG)) {
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cpu_physical_memory_set_dirty(addr);
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}
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}
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}
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/* Enable dirty memory tracking */
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cpu_physical_memory_set_dirty_tracking(1);
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qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
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QLIST_FOREACH(block, &ram_list.blocks, next) {
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qemu_put_byte(f, strlen(block->idstr));
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qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
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qemu_put_be64(f, block->length);
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}
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}
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bytes_transferred_last = bytes_transferred;
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bwidth = qemu_get_clock_ns(rt_clock);
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while ((ret = qemu_file_rate_limit(f)) == 0) {
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int bytes_sent;
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bytes_sent = ram_save_block(f);
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bytes_transferred += bytes_sent;
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if (bytes_sent == 0) { /* no more blocks */
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break;
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}
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}
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if (ret < 0) {
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return ret;
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}
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bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
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bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
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/* if we haven't transferred anything this round, force expected_time to a
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* a very high value, but without crashing */
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if (bwidth == 0) {
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bwidth = 0.000001;
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}
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/* try transferring iterative blocks of memory */
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if (stage == 3) {
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int bytes_sent;
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/* flush all remaining blocks regardless of rate limiting */
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while ((bytes_sent = ram_save_block(f)) != 0) {
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bytes_transferred += bytes_sent;
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}
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cpu_physical_memory_set_dirty_tracking(0);
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}
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qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
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expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
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return (stage == 2) && (expected_time <= migrate_max_downtime());
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}
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static inline void *host_from_stream_offset(QEMUFile *f,
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ram_addr_t offset,
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int flags)
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{
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static RAMBlock *block = NULL;
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char id[256];
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uint8_t len;
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if (flags & RAM_SAVE_FLAG_CONTINUE) {
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if (!block) {
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fprintf(stderr, "Ack, bad migration stream!\n");
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return NULL;
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}
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return block->host + offset;
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}
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len = qemu_get_byte(f);
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qemu_get_buffer(f, (uint8_t *)id, len);
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id[len] = 0;
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QLIST_FOREACH(block, &ram_list.blocks, next) {
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if (!strncmp(id, block->idstr, sizeof(id)))
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return block->host + offset;
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}
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fprintf(stderr, "Can't find block %s!\n", id);
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return NULL;
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}
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int ram_load(QEMUFile *f, void *opaque, int version_id)
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{
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ram_addr_t addr;
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int flags;
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int error;
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if (version_id < 3 || version_id > 4) {
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return -EINVAL;
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}
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do {
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addr = qemu_get_be64(f);
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flags = addr & ~TARGET_PAGE_MASK;
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addr &= TARGET_PAGE_MASK;
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if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
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if (version_id == 3) {
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if (addr != ram_bytes_total()) {
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return -EINVAL;
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}
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} else {
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/* Synchronize RAM block list */
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char id[256];
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ram_addr_t length;
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ram_addr_t total_ram_bytes = addr;
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while (total_ram_bytes) {
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RAMBlock *block;
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uint8_t len;
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len = qemu_get_byte(f);
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qemu_get_buffer(f, (uint8_t *)id, len);
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id[len] = 0;
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length = qemu_get_be64(f);
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QLIST_FOREACH(block, &ram_list.blocks, next) {
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if (!strncmp(id, block->idstr, sizeof(id))) {
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if (block->length != length)
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return -EINVAL;
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break;
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}
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}
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if (!block) {
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fprintf(stderr, "Unknown ramblock \"%s\", cannot "
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"accept migration\n", id);
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return -EINVAL;
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}
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total_ram_bytes -= length;
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}
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}
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}
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if (flags & RAM_SAVE_FLAG_COMPRESS) {
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void *host;
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uint8_t ch;
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if (version_id == 3)
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host = qemu_get_ram_ptr(addr);
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else
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host = host_from_stream_offset(f, addr, flags);
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if (!host) {
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return -EINVAL;
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}
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|
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ch = qemu_get_byte(f);
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memset(host, ch, TARGET_PAGE_SIZE);
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#ifndef _WIN32
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if (ch == 0 &&
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(!kvm_enabled() || kvm_has_sync_mmu())) {
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qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
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}
|
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#endif
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} else if (flags & RAM_SAVE_FLAG_PAGE) {
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void *host;
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|
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if (version_id == 3)
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host = qemu_get_ram_ptr(addr);
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else
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host = host_from_stream_offset(f, addr, flags);
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|
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qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
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}
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error = qemu_file_get_error(f);
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if (error) {
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return error;
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}
|
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} while (!(flags & RAM_SAVE_FLAG_EOS));
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|
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return 0;
|
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}
|
|
|
|
#ifdef HAS_AUDIO
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struct soundhw {
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const char *name;
|
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const char *descr;
|
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int enabled;
|
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int isa;
|
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union {
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int (*init_isa) (qemu_irq *pic);
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int (*init_pci) (PCIBus *bus);
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} init;
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};
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|
|
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static struct soundhw soundhw[] = {
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#ifdef HAS_AUDIO_CHOICE
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#if defined(TARGET_I386) || defined(TARGET_MIPS)
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{
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"pcspk",
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"PC speaker",
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0,
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1,
|
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{ .init_isa = pcspk_audio_init }
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},
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#endif
|
|
|
|
#ifdef CONFIG_SB16
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{
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"sb16",
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"Creative Sound Blaster 16",
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0,
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1,
|
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{ .init_isa = SB16_init }
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},
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#endif
|
|
|
|
#ifdef CONFIG_CS4231A
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{
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"cs4231a",
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"CS4231A",
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0,
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1,
|
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{ .init_isa = cs4231a_init }
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},
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#endif
|
|
|
|
#ifdef CONFIG_ADLIB
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{
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"adlib",
|
|
#ifdef HAS_YMF262
|
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"Yamaha YMF262 (OPL3)",
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#else
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"Yamaha YM3812 (OPL2)",
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#endif
|
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0,
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1,
|
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{ .init_isa = Adlib_init }
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},
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#endif
|
|
|
|
#ifdef CONFIG_GUS
|
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{
|
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"gus",
|
|
"Gravis Ultrasound GF1",
|
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0,
|
|
1,
|
|
{ .init_isa = GUS_init }
|
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},
|
|
#endif
|
|
|
|
#ifdef CONFIG_AC97
|
|
{
|
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"ac97",
|
|
"Intel 82801AA AC97 Audio",
|
|
0,
|
|
0,
|
|
{ .init_pci = ac97_init }
|
|
},
|
|
#endif
|
|
|
|
#ifdef CONFIG_ES1370
|
|
{
|
|
"es1370",
|
|
"ENSONIQ AudioPCI ES1370",
|
|
0,
|
|
0,
|
|
{ .init_pci = es1370_init }
|
|
},
|
|
#endif
|
|
|
|
#ifdef CONFIG_HDA
|
|
{
|
|
"hda",
|
|
"Intel HD Audio",
|
|
0,
|
|
0,
|
|
{ .init_pci = intel_hda_and_codec_init }
|
|
},
|
|
#endif
|
|
|
|
#endif /* HAS_AUDIO_CHOICE */
|
|
|
|
{ NULL, NULL, 0, 0, { NULL } }
|
|
};
|
|
|
|
void select_soundhw(const char *optarg)
|
|
{
|
|
struct soundhw *c;
|
|
|
|
if (*optarg == '?') {
|
|
show_valid_cards:
|
|
|
|
printf("Valid sound card names (comma separated):\n");
|
|
for (c = soundhw; c->name; ++c) {
|
|
printf ("%-11s %s\n", c->name, c->descr);
|
|
}
|
|
printf("\n-soundhw all will enable all of the above\n");
|
|
exit(*optarg != '?');
|
|
}
|
|
else {
|
|
size_t l;
|
|
const char *p;
|
|
char *e;
|
|
int bad_card = 0;
|
|
|
|
if (!strcmp(optarg, "all")) {
|
|
for (c = soundhw; c->name; ++c) {
|
|
c->enabled = 1;
|
|
}
|
|
return;
|
|
}
|
|
|
|
p = optarg;
|
|
while (*p) {
|
|
e = strchr(p, ',');
|
|
l = !e ? strlen(p) : (size_t) (e - p);
|
|
|
|
for (c = soundhw; c->name; ++c) {
|
|
if (!strncmp(c->name, p, l) && !c->name[l]) {
|
|
c->enabled = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!c->name) {
|
|
if (l > 80) {
|
|
fprintf(stderr,
|
|
"Unknown sound card name (too big to show)\n");
|
|
}
|
|
else {
|
|
fprintf(stderr, "Unknown sound card name `%.*s'\n",
|
|
(int) l, p);
|
|
}
|
|
bad_card = 1;
|
|
}
|
|
p += l + (e != NULL);
|
|
}
|
|
|
|
if (bad_card) {
|
|
goto show_valid_cards;
|
|
}
|
|
}
|
|
}
|
|
|
|
void audio_init(qemu_irq *isa_pic, PCIBus *pci_bus)
|
|
{
|
|
struct soundhw *c;
|
|
|
|
for (c = soundhw; c->name; ++c) {
|
|
if (c->enabled) {
|
|
if (c->isa) {
|
|
if (isa_pic) {
|
|
c->init.init_isa(isa_pic);
|
|
}
|
|
} else {
|
|
if (pci_bus) {
|
|
c->init.init_pci(pci_bus);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#else
|
|
void select_soundhw(const char *optarg)
|
|
{
|
|
}
|
|
void audio_init(qemu_irq *isa_pic, PCIBus *pci_bus)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
int qemu_uuid_parse(const char *str, uint8_t *uuid)
|
|
{
|
|
int ret;
|
|
|
|
if (strlen(str) != 36) {
|
|
return -1;
|
|
}
|
|
|
|
ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
|
|
&uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
|
|
&uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
|
|
&uuid[15]);
|
|
|
|
if (ret != 16) {
|
|
return -1;
|
|
}
|
|
#ifdef TARGET_I386
|
|
smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
void do_acpitable_option(const char *optarg)
|
|
{
|
|
#ifdef TARGET_I386
|
|
if (acpi_table_add(optarg) < 0) {
|
|
fprintf(stderr, "Wrong acpi table provided\n");
|
|
exit(1);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void do_smbios_option(const char *optarg)
|
|
{
|
|
#ifdef TARGET_I386
|
|
if (smbios_entry_add(optarg) < 0) {
|
|
fprintf(stderr, "Wrong smbios provided\n");
|
|
exit(1);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void cpudef_init(void)
|
|
{
|
|
#if defined(cpudef_setup)
|
|
cpudef_setup(); /* parse cpu definitions in target config file */
|
|
#endif
|
|
}
|
|
|
|
int audio_available(void)
|
|
{
|
|
#ifdef HAS_AUDIO
|
|
return 1;
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
int tcg_available(void)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
int kvm_available(void)
|
|
{
|
|
#ifdef CONFIG_KVM
|
|
return 1;
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
int xen_available(void)
|
|
{
|
|
#ifdef CONFIG_XEN
|
|
return 1;
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|