From patchwork Tue Apr 16 14:42:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Maciej S. Szmigiero" X-Patchwork-Id: 13631978 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 41D4DC4345F for ; Tue, 16 Apr 2024 14:45:35 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rwk2k-00051p-Nm; Tue, 16 Apr 2024 10:44:18 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rwk2j-00051T-RH for qemu-devel@nongnu.org; Tue, 16 Apr 2024 10:44:17 -0400 Received: from vps-vb.mhejs.net ([37.28.154.113]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rwk2i-0002An-B5 for qemu-devel@nongnu.org; Tue, 16 Apr 2024 10:44:17 -0400 Received: from MUA by vps-vb.mhejs.net with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1rwk2S-0002es-UZ; Tue, 16 Apr 2024 16:44:00 +0200 From: "Maciej S. Szmigiero" To: Peter Xu , Fabiano Rosas Cc: Alex Williamson , =?utf-8?q?C=C3=A9dric_Le_G?= =?utf-8?q?oater?= , Eric Blake , Markus Armbruster , Avihai Horon , Joao Martins , qemu-devel@nongnu.org Subject: [PATCH RFC 09/26] migration: Add send/receive header for postcopy preempt channel Date: Tue, 16 Apr 2024 16:42:48 +0200 Message-ID: X-Mailer: git-send-email 2.44.0 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=37.28.154.113; envelope-from=mail@maciej.szmigiero.name; helo=vps-vb.mhejs.net X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Avihai Horon Add send and receive migration channel header for postcopy preempt channel. Signed-off-by: Avihai Horon [MSS: Adapt to rewritten migration header passing commit] Signed-off-by: Maciej S. Szmigiero --- migration/channel.h | 1 + migration/migration.c | 5 +++++ migration/postcopy-ram.c | 5 ++++- 3 files changed, 10 insertions(+), 1 deletion(-) diff --git a/migration/channel.h b/migration/channel.h index 95d281828aaa..c59ccedc7b6b 100644 --- a/migration/channel.h +++ b/migration/channel.h @@ -31,6 +31,7 @@ int migration_channel_read_peek(QIOChannel *ioc, Error **errp); typedef enum { MIG_CHANNEL_TYPE_MAIN, + MIG_CHANNEL_TYPE_POSTCOPY_PREEMPT, } MigChannelTypes; typedef struct QEMU_PACKED { diff --git a/migration/migration.c b/migration/migration.c index 0eb5b4f4f5a1..ac9ecf1f4f22 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -1019,6 +1019,11 @@ void migration_ioc_process_incoming(QIOChannel *ioc, Error **errp) migration_incoming_setup(f); default_channel = true; break; + case MIG_CHANNEL_TYPE_POSTCOPY_PREEMPT: + assert(migrate_postcopy_preempt()); + f = qemu_file_new_input(ioc); + postcopy_preempt_new_channel(migration_incoming_get_current(), f); + break; default: error_setg(errp, "Received unknown migration channel type %u", header.channel_type); diff --git a/migration/postcopy-ram.c b/migration/postcopy-ram.c index 53c90344acce..c7e9f7345970 100644 --- a/migration/postcopy-ram.c +++ b/migration/postcopy-ram.c @@ -1775,8 +1775,11 @@ int postcopy_preempt_establish_channel(MigrationState *s) void postcopy_preempt_setup(MigrationState *s) { PostcopyPChannelConnectData *data; + MigChannelHeader header = {}; - data = pcopy_preempt_connect_data_new(s, NULL); + header.channel_type = MIG_CHANNEL_TYPE_POSTCOPY_PREEMPT; + + data = pcopy_preempt_connect_data_new(s, &header); /* Kick an async task to connect */ socket_send_channel_create(postcopy_preempt_send_channel_new, data, pcopy_preempt_connect_data_unref);