From patchwork Wed Feb 26 06:30:40 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhijian Li (Fujitsu)" X-Patchwork-Id: 13991582 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 4A85FC19776 for ; Wed, 26 Feb 2025 06:31:06 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tnAvA-0001jJ-8q; Wed, 26 Feb 2025 01:29:29 -0500 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 1tnAv9-0001ih-3K for qemu-devel@nongnu.org; Wed, 26 Feb 2025 01:29:27 -0500 Received: from esa6.hc1455-7.c3s2.iphmx.com ([68.232.139.139]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tnAv6-0001vH-2a for qemu-devel@nongnu.org; Wed, 26 Feb 2025 01:29:26 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=fujitsu.com; i=@fujitsu.com; q=dns/txt; s=fj2; t=1740551364; x=1772087364; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=pkZwIs9/cYDv5hTZNoRRBNEigCZj1TZSZF90ccJyt/Q=; b=hbXUs4nFfKspI5g3y4HVSJvAe5iac/532DvxZvKpJ3DB8xkVNFhtXIrj +DrV4VCOA9KjjIaia5wZrYaMAJFNES4eCA057HjbAPQAcdVH9jJimhfbV LRWoc+fFB7ga9QT5ZADCjLxWl8mjkftGQtsXBNBZI7DsXoaE4AsIgWeSN 4hbZNlaAOkvEyZGhijxVtiwg1gQiHgPKYiHI/5RGIVyXZAsG2+AMHU7Om 8p2QNvBZ7iTQ84JwHsdmoiATh6o6ve9sET1XJX4/pnrtIsfzow4wuGAH2 ti0MqpCdjTXcZw7ISuOpex4GjN5+Uluu1dkfUlL7RzPWN3XyTw6yas5+J A==; X-CSE-ConnectionGUID: xkZdEotmQZebUKJV1vBRuA== X-CSE-MsgGUID: 5zixxtj9TGGopJqKb1vHpg== X-IronPort-AV: E=McAfee;i="6700,10204,11356"; a="193851339" X-IronPort-AV: E=Sophos;i="6.13,316,1732546800"; d="scan'208";a="193851339" Received: from unknown (HELO oym-r2.gw.nic.fujitsu.com) ([210.162.30.90]) by esa6.hc1455-7.c3s2.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Feb 2025 15:29:17 +0900 Received: from oym-m3.gw.nic.fujitsu.com (oym-nat-oym-m3.gw.nic.fujitsu.com [192.168.87.60]) by oym-r2.gw.nic.fujitsu.com (Postfix) with ESMTP id A6E07E6146 for ; Wed, 26 Feb 2025 15:29:15 +0900 (JST) Received: from edo.cn.fujitsu.com (edo.cn.fujitsu.com [10.167.33.5]) by oym-m3.gw.nic.fujitsu.com (Postfix) with ESMTP id 70E80D6FE3 for ; Wed, 26 Feb 2025 15:29:15 +0900 (JST) Received: from iaas-rdma.. (unknown [10.167.135.44]) by edo.cn.fujitsu.com (Postfix) with ESMTP id C857E1A006C; Wed, 26 Feb 2025 14:29:14 +0800 (CST) To: qemu-devel@nongnu.org Cc: Peter Xu , Fabiano Rosas , Laurent Vivier , Paolo Bonzini , Li Zhijian Subject: [PATCH v4 3/6] migration: disable RDMA + postcopy-ram Date: Wed, 26 Feb 2025 14:30:40 +0800 Message-ID: <20250226063043.732455-4-lizhijian@fujitsu.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20250226063043.732455-1-lizhijian@fujitsu.com> References: <20250226063043.732455-1-lizhijian@fujitsu.com> MIME-Version: 1.0 Received-SPF: pass client-ip=68.232.139.139; envelope-from=lizhijian@fujitsu.com; helo=esa6.hc1455-7.c3s2.iphmx.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_PASS=-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: , Reply-to: Li Zhijian X-Patchwork-Original-From: Li Zhijian via From: "Zhijian Li (Fujitsu)" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org It's believed that RDMA + postcopy-ram has been broken for a while. Rather than spending time re-enabling it, let's simply disable it as a trade-off. Reviewed-by: Peter Xu Signed-off-by: Li Zhijian --- V3: - collect Reviewed tag - reoder: 6th -> 3th --- migration/options.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/migration/options.c b/migration/options.c index c6f18df5864..527ba05d413 100644 --- a/migration/options.c +++ b/migration/options.c @@ -449,6 +449,10 @@ bool migrate_rdma_caps_check(bool *caps, Error **errp) error_setg(errp, "RDMA and multifd can't be used together"); return false; } + if (caps[MIGRATION_CAPABILITY_POSTCOPY_RAM]) { + error_setg(errp, "RDMA and postcopy-ram can't be used together"); + return false; + } return true; }