From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38243) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aRzBn-0002rT-Hh for qemu-devel@nongnu.org; Sat, 06 Feb 2016 04:30:00 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aRzBm-0001TF-Fu for qemu-devel@nongnu.org; Sat, 06 Feb 2016 04:29:59 -0500 Received: from szxga03-in.huawei.com ([119.145.14.66]:22511) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aRzBl-0001Rw-NM for qemu-devel@nongnu.org; Sat, 06 Feb 2016 04:29:58 -0500 From: zhanghailiang Date: Sat, 6 Feb 2016 17:28:40 +0800 Message-ID: <1454750932-7556-29-git-send-email-zhang.zhanghailiang@huawei.com> In-Reply-To: <1454750932-7556-1-git-send-email-zhang.zhanghailiang@huawei.com> References: <1454750932-7556-1-git-send-email-zhang.zhanghailiang@huawei.com> MIME-Version: 1.0 Content-Type: text/plain Subject: [Qemu-devel] [PATCH COLO-Frame v14 28/40] migration/savevm: Export two helper functions for savevm process List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: xiecl.fnst@cn.fujitsu.com, lizhijian@cn.fujitsu.com, quintela@redhat.com, armbru@redhat.com, yunhong.jiang@intel.com, eddie.dong@intel.com, peter.huangpeng@huawei.com, dgilbert@redhat.com, zhanghailiang , arei.gonglei@huawei.com, stefanha@redhat.com, amit.shah@redhat.com, zhangchen.fnst@cn.fujitsu.com, hongyang.yang@easystack.cn We add a new helper functions qemu_savevm_live_state(), and make qemu_save_device_state() public. Signed-off-by: zhanghailiang Signed-off-by: Li Zhijian --- v14: - New patch split from previous 'COLO: Separate the process of saving/loading ram and device state' --- include/sysemu/sysemu.h | 3 +++ migration/savevm.c | 15 +++++++++++---- 2 files changed, 14 insertions(+), 4 deletions(-) diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h index c0694a1..7b1748c 100644 --- a/include/sysemu/sysemu.h +++ b/include/sysemu/sysemu.h @@ -133,6 +133,9 @@ void qemu_savevm_send_postcopy_ram_discard(QEMUFile *f, const char *name, uint64_t *start_list, uint64_t *length_list); +void qemu_savevm_live_state(QEMUFile *f); +int qemu_save_device_state(QEMUFile *f); + int qemu_loadvm_state(QEMUFile *f); int qemu_loadvm_state_begin(QEMUFile *f); int qemu_loadvm_state_main(QEMUFile *f, MigrationIncomingState *mis); diff --git a/migration/savevm.c b/migration/savevm.c index c32b2fe..0c3b960 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -1192,13 +1192,20 @@ static int qemu_savevm_state(QEMUFile *f, Error **errp) return ret; } -static int qemu_save_device_state(QEMUFile *f) +void qemu_savevm_live_state(QEMUFile *f) { - SaveStateEntry *se; + /* save QEMU_VM_SECTION_END section */ + qemu_savevm_state_complete_precopy(f, true); + qemu_put_byte(f, QEMU_VM_EOF); +} - qemu_put_be32(f, QEMU_VM_FILE_MAGIC); - qemu_put_be32(f, QEMU_VM_FILE_VERSION); +int qemu_save_device_state(QEMUFile *f) +{ + SaveStateEntry *se; + if (!migration_in_colo_state()) { + qemu_savevm_state_header(f); + } cpu_synchronize_all_states(); QTAILQ_FOREACH(se, &savevm_state.handlers, entry) { -- 1.8.3.1