From patchwork Wed Aug 3 12:26:05 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhanghailiang X-Patchwork-Id: 9261197 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 C1E0B6048F for ; Wed, 3 Aug 2016 12:56:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B2DEB28307 for ; Wed, 3 Aug 2016 12:56:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A7AA528581; Wed, 3 Aug 2016 12:56:10 +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 3FFDB28307 for ; Wed, 3 Aug 2016 12:56:10 +0000 (UTC) Received: from localhost ([::1]:34320 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bUviT-0005Eo-BQ for patchwork-qemu-devel@patchwork.kernel.org; Wed, 03 Aug 2016 08:56:09 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60879) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bUvGP-0000lW-Jk for qemu-devel@nongnu.org; Wed, 03 Aug 2016 08:27:12 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bUvGK-0006cI-Gr for qemu-devel@nongnu.org; Wed, 03 Aug 2016 08:27:08 -0400 Received: from szxga03-in.huawei.com ([119.145.14.66]:42854) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bUvGJ-0006bI-SI for qemu-devel@nongnu.org; Wed, 03 Aug 2016 08:27:04 -0400 Received: from 172.24.1.137 (EHLO szxeml431-hub.china.huawei.com) ([172.24.1.137]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id CFU48229; Wed, 03 Aug 2016 20:26:51 +0800 (CST) Received: from localhost (10.177.24.212) by szxeml431-hub.china.huawei.com (10.82.67.208) with Microsoft SMTP Server id 14.3.235.1; Wed, 3 Aug 2016 20:26:43 +0800 From: zhanghailiang To: Date: Wed, 3 Aug 2016 20:26:05 +0800 Message-ID: <1470227172-13704-28-git-send-email-zhang.zhanghailiang@huawei.com> X-Mailer: git-send-email 2.7.2.windows.1 In-Reply-To: <1470227172-13704-1-git-send-email-zhang.zhanghailiang@huawei.com> References: <1470227172-13704-1-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=0001.0A0B0207.57A1E30B.016D, 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: bd761a1aceb427eb1bc117ea4fb3d1c5 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 v18 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, quintela@redhat.com, eddie.dong@intel.com, peter.huangpeng@huawei.com, dgilbert@redhat.com, amit.shah@redhat.com, zhangchen.fnst@cn.fujitsu.com, zhanghailiang 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 9fe8224..ac2ed76 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 390816a..9085338 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -54,6 +54,7 @@ #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 @@ -1189,13 +1190,20 @@ done: 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) {