diff options
Diffstat (limited to 'arch_init.c')
| -rw-r--r-- | arch_init.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/arch_init.c b/arch_init.c index 09a712528e..68a7ab784f 100644 --- a/arch_init.c +++ b/arch_init.c @@ -118,6 +118,7 @@ static void check_guest_throttling(void); #define RAM_SAVE_FLAG_EOS 0x10 #define RAM_SAVE_FLAG_CONTINUE 0x20 #define RAM_SAVE_FLAG_XBZRLE 0x40 +/* 0x80 is reserved in migration.h start with 0x100 next */ static struct defconfig_file { @@ -475,6 +476,7 @@ static int ram_save_block(QEMUFile *f, bool last_stage) ram_bulk_stage = false; } } else { + int ret; uint8_t *p; int cont = (block == last_sent_block) ? RAM_SAVE_FLAG_CONTINUE : 0; @@ -483,7 +485,18 @@ static int ram_save_block(QEMUFile *f, bool last_stage) /* In doubt sent page as normal */ bytes_sent = -1; - if (is_zero_page(p)) { + ret = ram_control_save_page(f, block->offset, + offset, TARGET_PAGE_SIZE, &bytes_sent); + + if (ret != RAM_SAVE_CONTROL_NOT_SUPP) { + if (ret != RAM_SAVE_CONTROL_DELAYED) { + if (bytes_sent > 0) { + acct_info.norm_pages++; + } else if (bytes_sent == 0) { + acct_info.dup_pages++; + } + } + } else if (is_zero_page(p)) { acct_info.dup_pages++; bytes_sent = save_block_hdr(f, block, offset, cont, RAM_SAVE_FLAG_COMPRESS); @@ -635,6 +648,10 @@ static int ram_save_setup(QEMUFile *f, void *opaque) } qemu_mutex_unlock_ramlist(); + + ram_control_before_iterate(f, RAM_CONTROL_SETUP); + ram_control_after_iterate(f, RAM_CONTROL_SETUP); + qemu_put_be64(f, RAM_SAVE_FLAG_EOS); return 0; @@ -653,6 +670,8 @@ static int ram_save_iterate(QEMUFile *f, void *opaque) reset_ram_globals(); } + ram_control_before_iterate(f, RAM_CONTROL_ROUND); + t0 = qemu_get_clock_ns(rt_clock); i = 0; while ((ret = qemu_file_rate_limit(f)) == 0) { @@ -684,6 +703,12 @@ static int ram_save_iterate(QEMUFile *f, void *opaque) qemu_mutex_unlock_ramlist(); + /* + * Must occur before EOS (or any QEMUFile operation) + * because of RDMA protocol. + */ + ram_control_after_iterate(f, RAM_CONTROL_ROUND); + if (ret < 0) { bytes_transferred += total_sent; return ret; @@ -701,6 +726,8 @@ static int ram_save_complete(QEMUFile *f, void *opaque) qemu_mutex_lock_ramlist(); migration_bitmap_sync(); + ram_control_before_iterate(f, RAM_CONTROL_FINISH); + /* try transferring iterative blocks of memory */ /* flush all remaining blocks regardless of rate limiting */ @@ -714,6 +741,8 @@ static int ram_save_complete(QEMUFile *f, void *opaque) } bytes_transferred += bytes_sent; } + + ram_control_after_iterate(f, RAM_CONTROL_FINISH); migration_end(); qemu_mutex_unlock_ramlist(); @@ -917,6 +946,8 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id) ret = -EINVAL; goto done; } + } else if (flags & RAM_SAVE_FLAG_HOOK) { + ram_control_load_hook(f, flags); } error = qemu_file_get_error(f); if (error) { |