diff options
Diffstat (limited to 'vl.c')
| -rw-r--r-- | vl.c | 94 |
1 files changed, 1 insertions, 93 deletions
@@ -2792,58 +2792,7 @@ void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque) /***********************************************************/ /* ram save/restore */ -#define BDRV_HASH_BLOCK_SIZE 1024 -#define IOBUF_SIZE 4096 -#define RAM_CBLOCK_MAGIC 0xfabe - -typedef struct RamDecompressState { - z_stream zstream; - QEMUFile *f; - uint8_t buf[IOBUF_SIZE]; -} RamDecompressState; - -static int ram_decompress_open(RamDecompressState *s, QEMUFile *f) -{ - int ret; - memset(s, 0, sizeof(*s)); - s->f = f; - ret = inflateInit(&s->zstream); - if (ret != Z_OK) - return -1; - return 0; -} - -static int ram_decompress_buf(RamDecompressState *s, uint8_t *buf, int len) -{ - int ret, clen; - - s->zstream.avail_out = len; - s->zstream.next_out = buf; - while (s->zstream.avail_out > 0) { - if (s->zstream.avail_in == 0) { - if (qemu_get_be16(s->f) != RAM_CBLOCK_MAGIC) - return -1; - clen = qemu_get_be16(s->f); - if (clen > IOBUF_SIZE) - return -1; - qemu_get_buffer(s->f, s->buf, clen); - s->zstream.avail_in = clen; - s->zstream.next_in = s->buf; - } - ret = inflate(&s->zstream, Z_PARTIAL_FLUSH); - if (ret != Z_OK && ret != Z_STREAM_END) { - return -1; - } - } - return 0; -} - -static void ram_decompress_close(RamDecompressState *s) -{ - inflateEnd(&s->zstream); -} - -#define RAM_SAVE_FLAG_FULL 0x01 +#define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */ #define RAM_SAVE_FLAG_COMPRESS 0x02 #define RAM_SAVE_FLAG_MEM_SIZE 0x04 #define RAM_SAVE_FLAG_PAGE 0x08 @@ -2991,47 +2940,11 @@ static int ram_save_live(QEMUFile *f, int stage, void *opaque) return (stage == 2) && (expected_time <= migrate_max_downtime()); } -static int ram_load_dead(QEMUFile *f, void *opaque) -{ - RamDecompressState s1, *s = &s1; - uint8_t buf[10]; - ram_addr_t i; - - if (ram_decompress_open(s, f) < 0) - return -EINVAL; - for(i = 0; i < last_ram_offset; i+= BDRV_HASH_BLOCK_SIZE) { - if (ram_decompress_buf(s, buf, 1) < 0) { - fprintf(stderr, "Error while reading ram block header\n"); - goto error; - } - if (buf[0] == 0) { - if (ram_decompress_buf(s, qemu_get_ram_ptr(i), - BDRV_HASH_BLOCK_SIZE) < 0) { - fprintf(stderr, "Error while reading ram block address=0x%08" PRIx64, (uint64_t)i); - goto error; - } - } else { - error: - printf("Error block header\n"); - return -EINVAL; - } - } - ram_decompress_close(s); - - return 0; -} - static int ram_load(QEMUFile *f, void *opaque, int version_id) { ram_addr_t addr; int flags; - if (version_id == 2) { - if (qemu_get_be32(f) != last_ram_offset) - return -EINVAL; - return ram_load_dead(f, opaque); - } - if (version_id != 3) return -EINVAL; @@ -3046,11 +2959,6 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id) return -EINVAL; } - if (flags & RAM_SAVE_FLAG_FULL) { - if (ram_load_dead(f, opaque) < 0) - return -EINVAL; - } - if (flags & RAM_SAVE_FLAG_COMPRESS) { uint8_t ch = qemu_get_byte(f); memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE); |