From patchwork Fri Jun 3 07:52:39 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhanghailiang X-Patchwork-Id: 9152071 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E146E6072B for ; Fri, 3 Jun 2016 08:11:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CF68E2675C for ; Fri, 3 Jun 2016 08:11:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C31B7282E8; Fri, 3 Jun 2016 08:11:22 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 75AFD2675C for ; Fri, 3 Jun 2016 08:11:21 +0000 (UTC) Received: from localhost ([::1]:53118 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b8kCO-0005v9-0L for patchwork-qemu-devel@patchwork.kernel.org; Fri, 03 Jun 2016 04:11:20 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41408) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b8jvn-0007BT-2h for qemu-devel@nongnu.org; Fri, 03 Jun 2016 03:54:14 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1b8jvi-0004nV-VW for qemu-devel@nongnu.org; Fri, 03 Jun 2016 03:54:10 -0400 Received: from szxga03-in.huawei.com ([119.145.14.66]:24119) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b8jvi-0004j1-A8 for qemu-devel@nongnu.org; Fri, 03 Jun 2016 03:54:06 -0400 Received: from 172.24.1.36 (EHLO szxeml422-hub.china.huawei.com) ([172.24.1.36]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id CCR25140; Fri, 03 Jun 2016 15:53:22 +0800 (CST) Received: from localhost (10.177.24.212) by szxeml422-hub.china.huawei.com (10.82.67.152) with Microsoft SMTP Server id 14.3.235.1; Fri, 3 Jun 2016 15:53:15 +0800 From: zhanghailiang To: , , , Date: Fri, 3 Jun 2016 15:52:39 +0800 Message-ID: <1464940366-9880-28-git-send-email-zhang.zhanghailiang@huawei.com> X-Mailer: git-send-email 2.7.2.windows.1 In-Reply-To: <1464940366-9880-1-git-send-email-zhang.zhanghailiang@huawei.com> References: <1464940366-9880-1-git-send-email-zhang.zhanghailiang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.177.24.212] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090202.57513795.004C, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: d67ab8018030fcbc9a671f5b20a8ae5a X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 119.145.14.66 Subject: [Qemu-devel] [PATCH COLO-Frame v17 27/34] migration/savevm: Export two helper functions for savevm process X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: xiecl.fnst@cn.fujitsu.com, lizhijian@cn.fujitsu.com, yunhong.jiang@intel.com, eddie.dong@intel.com, peter.huangpeng@huawei.com, zhanghailiang , arei.gonglei@huawei.com, stefanha@redhat.com, zhangchen.fnst@cn.fujitsu.com, hongyang.yang@easystack.cn Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP 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 Reviewed-by: Dr. David Alan Gilbert --- v15: - Add Reviewd-by tag 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 | 16 ++++++++++++---- 2 files changed, 15 insertions(+), 4 deletions(-) diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h index 2b44981..2f2161a 100644 --- a/include/sysemu/sysemu.h +++ b/include/sysemu/sysemu.h @@ -132,6 +132,9 @@ 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 98abb5c..55a2eab 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -53,6 +53,7 @@ #include "qemu/cutils.h" #include "io/channel-buffer.h" #include "io/channel-file.h" +#include "migration/colo.h" #ifndef ETH_P_RARP #define ETH_P_RARP 0x8035 @@ -1178,13 +1179,20 @@ 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) {