From nobody Wed Nov 27 00:33:41 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1703180759; cv=none; d=zohomail.com; s=zohoarc; b=iL4Ff1LFAFZsLt6TY/wdnEEDqT18gHpUf/mp4/sycY8h+uEHRBXZec0t7u5T/mfxztdad0UsX9XAILcVYAOC3EmHZTLDPxTIBFMEUuWl3mFt9VbMbPxJk1f6eJaVLq/TIqOQhsdTDexKF0YbXeukgKjRAClLziL9D+s7IxPAgE4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1703180759; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=5U4m8fIAMN0n6WTo/QLzpZYbobkarUjTFlCLBwhwyvM=; b=HycJ0PqCEm2U3G+nHjaLeLtVe2LC08iOwt6D3xNuWcTTTdmpMewWjYiq17ZN3o5CFkeNjPkZXJeVuziYLmcmUsF35E4JP4Ncm2RCSHekF/ilcLIfVAonGL8oiaXP2NhW/oslr5ZrbsM/j7NDaF2hyRQiybCv6EaSTi9nTPcIuO4= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1703180759706697.8248416485436; Thu, 21 Dec 2023 09:45:59 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rGN5P-00028o-PX; Thu, 21 Dec 2023 12:43:55 -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 1rGN5H-00025k-Ra for qemu-devel@nongnu.org; Thu, 21 Dec 2023 12:43:50 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rGN5F-0004Tm-CW for qemu-devel@nongnu.org; Thu, 21 Dec 2023 12:43:47 -0500 Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-587-p2sLhM77Nfq3KyI01dQB-Q-1; Thu, 21 Dec 2023 12:43:41 -0500 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 98C9C85A58A; Thu, 21 Dec 2023 17:43:40 +0000 (UTC) Received: from eperezma.remote.csb (unknown [10.39.193.3]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0026C492BC6; Thu, 21 Dec 2023 17:43:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1703180624; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5U4m8fIAMN0n6WTo/QLzpZYbobkarUjTFlCLBwhwyvM=; b=Hz0b4fA9C29xiWbhCjZuEXDckU2gSKvOm3shHPEKl95wnU52zN4KmCqPqotMFnm+OB9Prg p7riRGRDZOE9bMenYf5hQ6YvF8198XGum3b9rz5HJg81PZXzsnmK969HuHW907VCf6Wx6j rRDVYbywF9k+5dHTQvJNeQVfpvBzzXA= X-MC-Unique: p2sLhM77Nfq3KyI01dQB-Q-1 From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= To: qemu-devel@nongnu.org Cc: Dragos Tatulea , Zhu Lingshan , Parav Pandit , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , si-wei.liu@oracle.com, Laurent Vivier , Lei Yang Subject: [PATCH v4 07/13] vdpa: move iotlb_batch_begin_sent to vhost_vdpa_shared Date: Thu, 21 Dec 2023 18:43:16 +0100 Message-Id: <20231221174322.3130442-8-eperezma@redhat.com> In-Reply-To: <20231221174322.3130442-1-eperezma@redhat.com> References: <20231221174322.3130442-1-eperezma@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.9 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=eperezma@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.061, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1703180761509100003 Next patches will register the vhost_vdpa memory listener while the VM is migrating at the destination, so we can map the memory to the device before stopping the VM at the source. The main goal is to reduce the downtime. However, the destination QEMU is unaware of which vhost_vdpa device will register its memory_listener. If the source guest has CVQ enabled, it will be the CVQ device. Otherwise, it will be the first one. Move the iotlb_batch_begin_sent member to VhostVDPAShared so all vhost_vdpa can use it, rather than always in the first / last vhost_vdpa. Signed-off-by: Eugenio P=C3=A9rez Acked-by: Jason Wang --- include/hw/virtio/vhost-vdpa.h | 3 ++- hw/virtio/vhost-vdpa.c | 8 ++++---- 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/include/hw/virtio/vhost-vdpa.h b/include/hw/virtio/vhost-vdpa.h index 796a180afa..05219bbcf7 100644 --- a/include/hw/virtio/vhost-vdpa.h +++ b/include/hw/virtio/vhost-vdpa.h @@ -38,6 +38,8 @@ typedef struct vhost_vdpa_shared { /* IOVA mapping used by the Shadow Virtqueue */ VhostIOVATree *iova_tree; =20 + bool iotlb_batch_begin_sent; + /* Vdpa must send shadow addresses as IOTLB key for data queues, not G= PA */ bool shadow_data; } VhostVDPAShared; @@ -45,7 +47,6 @@ typedef struct vhost_vdpa_shared { typedef struct vhost_vdpa { int index; uint32_t msg_type; - bool iotlb_batch_begin_sent; uint32_t address_space_id; MemoryListener listener; uint64_t acked_features; diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index 095543395b..85b13e09f4 100644 --- a/hw/virtio/vhost-vdpa.c +++ b/hw/virtio/vhost-vdpa.c @@ -162,11 +162,11 @@ static void vhost_vdpa_listener_begin_batch(struct vh= ost_vdpa *v) static void vhost_vdpa_iotlb_batch_begin_once(struct vhost_vdpa *v) { if (v->dev->backend_cap & (0x1ULL << VHOST_BACKEND_F_IOTLB_BATCH) && - !v->iotlb_batch_begin_sent) { + !v->shared->iotlb_batch_begin_sent) { vhost_vdpa_listener_begin_batch(v); } =20 - v->iotlb_batch_begin_sent =3D true; + v->shared->iotlb_batch_begin_sent =3D true; } =20 static void vhost_vdpa_listener_commit(MemoryListener *listener) @@ -180,7 +180,7 @@ static void vhost_vdpa_listener_commit(MemoryListener *= listener) return; } =20 - if (!v->iotlb_batch_begin_sent) { + if (!v->shared->iotlb_batch_begin_sent) { return; } =20 @@ -193,7 +193,7 @@ static void vhost_vdpa_listener_commit(MemoryListener *= listener) fd, errno, strerror(errno)); } =20 - v->iotlb_batch_begin_sent =3D false; + v->shared->iotlb_batch_begin_sent =3D false; } =20 static void vhost_vdpa_iommu_map_notify(IOMMUNotifier *n, IOMMUTLBEntry *i= otlb) --=20 2.39.3