From patchwork Mon Oct 19 09:15:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zenghui Yu X-Patchwork-Id: 270994 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0E3D1C433E7 for ; Mon, 19 Oct 2020 09:19:25 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 70EB022200 for ; Mon, 19 Oct 2020 09:19:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 70EB022200 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:40890 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kURK6-0000zL-72 for qemu-devel@archiver.kernel.org; Mon, 19 Oct 2020 05:19:22 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45622) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kURIv-0000OU-Ls; Mon, 19 Oct 2020 05:18:09 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:5251 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kURIt-0007HQ-El; Mon, 19 Oct 2020 05:18:09 -0400 Received: from DGGEMS403-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 4861E83B05A9DF46EF03; Mon, 19 Oct 2020 17:17:54 +0800 (CST) Received: from DESKTOP-8RFUVS3.china.huawei.com (10.174.185.179) by DGGEMS403-HUB.china.huawei.com (10.3.19.203) with Microsoft SMTP Server id 14.3.487.0; Mon, 19 Oct 2020 17:17:44 +0800 From: Zenghui Yu To: , Subject: [PATCH] [RFC] hw/arm/smmuv3: Set the restoration priority of the vSMMUv3 explicitly Date: Mon, 19 Oct 2020 17:15:08 +0800 Message-ID: <20201019091508.197-1-yuzenghui@huawei.com> X-Mailer: git-send-email 2.23.0.windows.1 MIME-Version: 1.0 X-Originating-IP: [10.174.185.179] X-CFilter-Loop: Reflected Received-SPF: pass client-ip=45.249.212.191; envelope-from=yuzenghui@huawei.com; helo=huawei.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/19 05:17:55 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Zenghui Yu , wanghaibin.wang@huawei.com, qemu-arm@nongnu.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Ensure the vSMMUv3 will be restored before all PCIe devices so that DMA translation can work properly during migration. Signed-off-by: Zenghui Yu Acked-by: Eric Auger --- not sure if anything would actually go wrong... hw/arm/smmuv3.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c index 0122700e72..2017ba7a5a 100644 --- a/hw/arm/smmuv3.c +++ b/hw/arm/smmuv3.c @@ -1440,6 +1440,7 @@ static const VMStateDescription vmstate_smmuv3 = { .name = "smmuv3", .version_id = 1, .minimum_version_id = 1, + .priority = MIG_PRI_IOMMU, .fields = (VMStateField[]) { VMSTATE_UINT32(features, SMMUv3State), VMSTATE_UINT8(sid_size, SMMUv3State),