4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
28 #include <sys/types.h>
34 #include "arch_init.h"
35 #include "audio/audio.h"
38 #include "hw/audiodev.h"
40 #include "migration.h"
43 #include "hw/smbios.h"
44 #include "exec-memory.h"
47 #ifdef DEBUG_ARCH_INIT
48 #define DPRINTF(fmt, ...) \
49 do { fprintf(stdout, "arch_init: " fmt, ## __VA_ARGS__); } while (0)
51 #define DPRINTF(fmt, ...) \
56 int graphic_width = 1024;
57 int graphic_height = 768;
58 int graphic_depth = 8;
60 int graphic_width = 800;
61 int graphic_height = 600;
62 int graphic_depth = 15;
66 #if defined(TARGET_ALPHA)
67 #define QEMU_ARCH QEMU_ARCH_ALPHA
68 #elif defined(TARGET_ARM)
69 #define QEMU_ARCH QEMU_ARCH_ARM
70 #elif defined(TARGET_CRIS)
71 #define QEMU_ARCH QEMU_ARCH_CRIS
72 #elif defined(TARGET_I386)
73 #define QEMU_ARCH QEMU_ARCH_I386
74 #elif defined(TARGET_M68K)
75 #define QEMU_ARCH QEMU_ARCH_M68K
76 #elif defined(TARGET_LM32)
77 #define QEMU_ARCH QEMU_ARCH_LM32
78 #elif defined(TARGET_MICROBLAZE)
79 #define QEMU_ARCH QEMU_ARCH_MICROBLAZE
80 #elif defined(TARGET_MIPS)
81 #define QEMU_ARCH QEMU_ARCH_MIPS
82 #elif defined(TARGET_OPENRISC)
83 #define QEMU_ARCH QEMU_ARCH_OPENRISC
84 #elif defined(TARGET_PPC)
85 #define QEMU_ARCH QEMU_ARCH_PPC
86 #elif defined(TARGET_S390X)
87 #define QEMU_ARCH QEMU_ARCH_S390X
88 #elif defined(TARGET_SH4)
89 #define QEMU_ARCH QEMU_ARCH_SH4
90 #elif defined(TARGET_SPARC)
91 #define QEMU_ARCH QEMU_ARCH_SPARC
92 #elif defined(TARGET_XTENSA)
93 #define QEMU_ARCH QEMU_ARCH_XTENSA
96 const uint32_t arch_type = QEMU_ARCH;
98 /***********************************************************/
99 /* ram save/restore */
101 #define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
102 #define RAM_SAVE_FLAG_COMPRESS 0x02
103 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
104 #define RAM_SAVE_FLAG_PAGE 0x08
105 #define RAM_SAVE_FLAG_EOS 0x10
106 #define RAM_SAVE_FLAG_CONTINUE 0x20
110 #define VECTYPE vector unsigned char
111 #define SPLAT(p) vec_splat(vec_ld(0, p), 0)
112 #define ALL_EQ(v1, v2) vec_all_eq(v1, v2)
113 /* altivec.h may redefine the bool macro as vector type.
114 * Reset it to POSIX semantics. */
117 #elif defined __SSE2__
118 #include <emmintrin.h>
119 #define VECTYPE __m128i
120 #define SPLAT(p) _mm_set1_epi8(*(p))
121 #define ALL_EQ(v1, v2) (_mm_movemask_epi8(_mm_cmpeq_epi8(v1, v2)) == 0xFFFF)
123 #define VECTYPE unsigned long
124 #define SPLAT(p) (*(p) * (~0UL / 255))
125 #define ALL_EQ(v1, v2) ((v1) == (v2))
129 static struct defconfig_file {
130 const char *filename;
131 /* Indicates it is an user config file (disabled by -no-user-config) */
133 } default_config_files[] = {
134 { CONFIG_QEMU_DATADIR "/cpus-" TARGET_ARCH ".conf", false },
135 { CONFIG_QEMU_CONFDIR "/qemu.conf", true },
136 { CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf", true },
137 { NULL }, /* end of list */
141 int qemu_read_default_config_files(bool userconfig)
144 struct defconfig_file *f;
146 for (f = default_config_files; f->filename; f++) {
147 if (!userconfig && f->userconfig) {
150 ret = qemu_read_config_file(f->filename);
151 if (ret < 0 && ret != -ENOENT) {
159 static int is_dup_page(uint8_t *page)
161 VECTYPE *p = (VECTYPE *)page;
162 VECTYPE val = SPLAT(page);
165 for (i = 0; i < TARGET_PAGE_SIZE / sizeof(VECTYPE); i++) {
166 if (!ALL_EQ(val, p[i])) {
174 static void save_block_hdr(QEMUFile *f, RAMBlock *block, ram_addr_t offset,
177 qemu_put_be64(f, offset | cont | flag);
179 qemu_put_byte(f, strlen(block->idstr));
180 qemu_put_buffer(f, (uint8_t *)block->idstr,
181 strlen(block->idstr));
186 static RAMBlock *last_block;
187 static ram_addr_t last_offset;
190 * ram_save_block: Writes a page of memory to the stream f
192 * Returns: 0: if the page hasn't changed
193 * -1: if there are no more dirty pages
194 * n: the amount of bytes written in other case
197 static int ram_save_block(QEMUFile *f)
199 RAMBlock *block = last_block;
200 ram_addr_t offset = last_offset;
205 block = QLIST_FIRST(&ram_list.blocks);
209 if (memory_region_get_dirty(mr, offset, TARGET_PAGE_SIZE,
210 DIRTY_MEMORY_MIGRATION)) {
212 int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
214 memory_region_reset_dirty(mr, offset, TARGET_PAGE_SIZE,
215 DIRTY_MEMORY_MIGRATION);
217 p = memory_region_get_ram_ptr(mr) + offset;
219 if (is_dup_page(p)) {
220 save_block_hdr(f, block, offset, cont, RAM_SAVE_FLAG_COMPRESS);
221 qemu_put_byte(f, *p);
224 save_block_hdr(f, block, offset, cont, RAM_SAVE_FLAG_PAGE);
225 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
226 bytes_sent = TARGET_PAGE_SIZE;
232 offset += TARGET_PAGE_SIZE;
233 if (offset >= block->length) {
235 block = QLIST_NEXT(block, next);
237 block = QLIST_FIRST(&ram_list.blocks);
239 } while (block != last_block || offset != last_offset);
242 last_offset = offset;
247 static uint64_t bytes_transferred;
249 static ram_addr_t ram_save_remaining(void)
251 return ram_list.dirty_pages;
254 uint64_t ram_bytes_remaining(void)
256 return ram_save_remaining() * TARGET_PAGE_SIZE;
259 uint64_t ram_bytes_transferred(void)
261 return bytes_transferred;
264 uint64_t ram_bytes_total(void)
269 QLIST_FOREACH(block, &ram_list.blocks, next)
270 total += block->length;
275 static int block_compar(const void *a, const void *b)
277 RAMBlock * const *ablock = a;
278 RAMBlock * const *bblock = b;
280 return strcmp((*ablock)->idstr, (*bblock)->idstr);
283 static void sort_ram_list(void)
285 RAMBlock *block, *nblock, **blocks;
288 QLIST_FOREACH(block, &ram_list.blocks, next) {
291 blocks = g_malloc(n * sizeof *blocks);
293 QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) {
295 QLIST_REMOVE(block, next);
297 qsort(blocks, n, sizeof *blocks, block_compar);
299 QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next);
304 static void migration_end(void)
306 memory_global_dirty_log_stop();
309 static void ram_migration_cancel(void *opaque)
314 #define MAX_WAIT 50 /* ms, half buffered_file limit */
316 static int ram_save_setup(QEMUFile *f, void *opaque)
321 bytes_transferred = 0;
326 /* Make sure all dirty bits are set */
327 QLIST_FOREACH(block, &ram_list.blocks, next) {
328 for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
329 if (!memory_region_get_dirty(block->mr, addr, TARGET_PAGE_SIZE,
330 DIRTY_MEMORY_MIGRATION)) {
331 memory_region_set_dirty(block->mr, addr, TARGET_PAGE_SIZE);
336 memory_global_dirty_log_start();
338 qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
340 QLIST_FOREACH(block, &ram_list.blocks, next) {
341 qemu_put_byte(f, strlen(block->idstr));
342 qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
343 qemu_put_be64(f, block->length);
346 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
351 static int ram_save_iterate(QEMUFile *f, void *opaque)
353 uint64_t bytes_transferred_last;
357 uint64_t expected_time;
359 bytes_transferred_last = bytes_transferred;
360 bwidth = qemu_get_clock_ns(rt_clock);
363 while ((ret = qemu_file_rate_limit(f)) == 0) {
366 bytes_sent = ram_save_block(f);
367 /* no more blocks to sent */
368 if (bytes_sent < 0) {
371 bytes_transferred += bytes_sent;
372 /* we want to check in the 1st loop, just in case it was the 1st time
373 and we had to sync the dirty bitmap.
374 qemu_get_clock_ns() is a bit expensive, so we only check each some
378 uint64_t t1 = (qemu_get_clock_ns(rt_clock) - bwidth) / 1000000;
380 DPRINTF("big wait: " PRIu64 " milliseconds, %d iterations\n",
392 bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
393 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
395 /* if we haven't transferred anything this round, force expected_time to a
396 * a very high value, but without crashing */
401 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
403 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
405 DPRINTF("ram_save_live: expected(" PRIu64 ") <= max(" PRIu64 ")?\n",
406 expected_time, migrate_max_downtime());
408 if (expected_time <= migrate_max_downtime()) {
409 memory_global_sync_dirty_bitmap(get_system_memory());
410 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
412 return expected_time <= migrate_max_downtime();
417 static int ram_save_complete(QEMUFile *f, void *opaque)
419 memory_global_sync_dirty_bitmap(get_system_memory());
421 /* try transferring iterative blocks of memory */
423 /* flush all remaining blocks regardless of rate limiting */
427 bytes_sent = ram_save_block(f);
428 /* no more blocks to sent */
429 if (bytes_sent < 0) {
432 bytes_transferred += bytes_sent;
434 memory_global_dirty_log_stop();
436 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
441 static inline void *host_from_stream_offset(QEMUFile *f,
445 static RAMBlock *block = NULL;
449 if (flags & RAM_SAVE_FLAG_CONTINUE) {
451 fprintf(stderr, "Ack, bad migration stream!\n");
455 return memory_region_get_ram_ptr(block->mr) + offset;
458 len = qemu_get_byte(f);
459 qemu_get_buffer(f, (uint8_t *)id, len);
462 QLIST_FOREACH(block, &ram_list.blocks, next) {
463 if (!strncmp(id, block->idstr, sizeof(id)))
464 return memory_region_get_ram_ptr(block->mr) + offset;
467 fprintf(stderr, "Can't find block %s!\n", id);
471 static int ram_load(QEMUFile *f, void *opaque, int version_id)
476 static uint64_t seq_iter;
480 if (version_id < 4 || version_id > 4) {
485 addr = qemu_get_be64(f);
487 flags = addr & ~TARGET_PAGE_MASK;
488 addr &= TARGET_PAGE_MASK;
490 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
491 if (version_id == 4) {
492 /* Synchronize RAM block list */
495 ram_addr_t total_ram_bytes = addr;
497 while (total_ram_bytes) {
501 len = qemu_get_byte(f);
502 qemu_get_buffer(f, (uint8_t *)id, len);
504 length = qemu_get_be64(f);
506 QLIST_FOREACH(block, &ram_list.blocks, next) {
507 if (!strncmp(id, block->idstr, sizeof(id))) {
508 if (block->length != length) {
517 fprintf(stderr, "Unknown ramblock \"%s\", cannot "
518 "accept migration\n", id);
523 total_ram_bytes -= length;
528 if (flags & RAM_SAVE_FLAG_COMPRESS) {
532 host = host_from_stream_offset(f, addr, flags);
537 ch = qemu_get_byte(f);
538 memset(host, ch, TARGET_PAGE_SIZE);
541 (!kvm_enabled() || kvm_has_sync_mmu())) {
542 qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
545 } else if (flags & RAM_SAVE_FLAG_PAGE) {
548 host = host_from_stream_offset(f, addr, flags);
553 qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
555 error = qemu_file_get_error(f);
560 } while (!(flags & RAM_SAVE_FLAG_EOS));
563 DPRINTF("Completed load of VM with exit code %d seq iteration " PRIu64 "\n",
568 SaveVMHandlers savevm_ram_handlers = {
569 .save_live_setup = ram_save_setup,
570 .save_live_iterate = ram_save_iterate,
571 .save_live_complete = ram_save_complete,
572 .load_state = ram_load,
573 .cancel = ram_migration_cancel,
583 int (*init_isa) (ISABus *bus);
584 int (*init_pci) (PCIBus *bus);
588 static struct soundhw soundhw[] = {
589 #ifdef HAS_AUDIO_CHOICE
596 { .init_isa = pcspk_audio_init }
603 "Creative Sound Blaster 16",
606 { .init_isa = SB16_init }
610 #ifdef CONFIG_CS4231A
616 { .init_isa = cs4231a_init }
624 "Yamaha YMF262 (OPL3)",
626 "Yamaha YM3812 (OPL2)",
630 { .init_isa = Adlib_init }
637 "Gravis Ultrasound GF1",
640 { .init_isa = GUS_init }
647 "Intel 82801AA AC97 Audio",
650 { .init_pci = ac97_init }
657 "ENSONIQ AudioPCI ES1370",
660 { .init_pci = es1370_init }
670 { .init_pci = intel_hda_and_codec_init }
674 #endif /* HAS_AUDIO_CHOICE */
676 { NULL, NULL, 0, 0, { NULL } }
679 void select_soundhw(const char *optarg)
683 if (is_help_option(optarg)) {
686 printf("Valid sound card names (comma separated):\n");
687 for (c = soundhw; c->name; ++c) {
688 printf ("%-11s %s\n", c->name, c->descr);
690 printf("\n-soundhw all will enable all of the above\n");
691 exit(!is_help_option(optarg));
699 if (!strcmp(optarg, "all")) {
700 for (c = soundhw; c->name; ++c) {
709 l = !e ? strlen(p) : (size_t) (e - p);
711 for (c = soundhw; c->name; ++c) {
712 if (!strncmp(c->name, p, l) && !c->name[l]) {
721 "Unknown sound card name (too big to show)\n");
724 fprintf(stderr, "Unknown sound card name `%.*s'\n",
729 p += l + (e != NULL);
733 goto show_valid_cards;
738 void audio_init(ISABus *isa_bus, PCIBus *pci_bus)
742 for (c = soundhw; c->name; ++c) {
746 c->init.init_isa(isa_bus);
750 c->init.init_pci(pci_bus);
757 void select_soundhw(const char *optarg)
760 void audio_init(ISABus *isa_bus, PCIBus *pci_bus)
765 int qemu_uuid_parse(const char *str, uint8_t *uuid)
769 if (strlen(str) != 36) {
773 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
774 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
775 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
782 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
787 void do_acpitable_option(const char *optarg)
790 if (acpi_table_add(optarg) < 0) {
791 fprintf(stderr, "Wrong acpi table provided\n");
797 void do_smbios_option(const char *optarg)
800 if (smbios_entry_add(optarg) < 0) {
801 fprintf(stderr, "Wrong smbios provided\n");
807 void cpudef_init(void)
809 #if defined(cpudef_setup)
810 cpudef_setup(); /* parse cpu definitions in target config file */
814 int audio_available(void)
823 int tcg_available(void)
828 int kvm_available(void)
837 int xen_available(void)