From nobody Sat Sep 21 07:35:06 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=1704999864; cv=none; d=zohomail.com; s=zohoarc; b=Iw1qPx5IWXhnokqpvO3roV/8KeISEnOZrWXI4q5uTPKlYKoIFL802rzPgUNvsDNPTwBmXJkMwnLUuwKf/R+alZRsHHQHRYF3gDkgdbdFXn2asclvRUsLz1F7TJucRU5pT1z/n88ORMEd6oythunUg1rjA7cgGgt8OCDFzMnQcw0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1704999864; 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=ZNYtP0/fqUQrbz1uancjxE/XlEOpkN/LmQB3y+vqoIQ=; b=cCOBl2MuQdDXdsN031VS8GL+CTlisKISEalf+BwE8lnWpxF386NsyGCmRwk5TfDG4OgB9hIuBxtBnWmm4mhag6IaJSnP/FxI3odqxVVxizrocePpoUJdB1PPbWATXO/+rdMeuYnBr5zeFR0L/TJF41Jt/Azgrf2Z3woAf8+PrdA= 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 1704999864273880.656821262037; Thu, 11 Jan 2024 11:04:24 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rO0K8-0001yZ-Ig; Thu, 11 Jan 2024 14:02:40 -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 1rO0K7-0001y5-1D for qemu-devel@nongnu.org; Thu, 11 Jan 2024 14:02:39 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rO0K5-0002NJ-AL for qemu-devel@nongnu.org; Thu, 11 Jan 2024 14:02:38 -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-582-AeBOwCZUP_O5KmmZjDJ-mQ-1; Thu, 11 Jan 2024 14:02:32 -0500 Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) (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 63B8C85A58A; Thu, 11 Jan 2024 19:02:32 +0000 (UTC) Received: from eperezma.remote.csb (unknown [10.39.194.34]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9BE65492C25; Thu, 11 Jan 2024 19:02:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1704999756; 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=ZNYtP0/fqUQrbz1uancjxE/XlEOpkN/LmQB3y+vqoIQ=; b=B2ja8fD9k4WUgXeAWGLtCskCwCzGdBFhwL0c2w+7rReH8V85WbMeXYZkQk+IppEdKzcCpG rodEs36IOlgBYPk0Bv1t4G//eOKWGJDtDUnSh7P9Ak4X0EUkUQw/4tUXbM8DLxraVLoG5g Mcd8uQcvBWGvpwoA1ZzGH/DB6j7HQNo= X-MC-Unique: AeBOwCZUP_O5KmmZjDJ-mQ-1 From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= To: mst@redhat.com, qemu-devel@nongnu.org Cc: Peter Xu , Dragos Tatulea , Zhu Lingshan , Jason Wang , Lei Yang , Laurent Vivier , si-wei.liu@oracle.com, Stefano Garzarella , Parav Pandit Subject: [PATCH 3/6] vdpa: set backend capabilities at vhost_vdpa_init Date: Thu, 11 Jan 2024 20:02:19 +0100 Message-Id: <20240111190222.496695-4-eperezma@redhat.com> In-Reply-To: <20240111190222.496695-1-eperezma@redhat.com> References: <20240111190222.496695-1-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 10.11.54.10 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=170.10.133.124; envelope-from=eperezma@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -45 X-Spam_score: -4.6 X-Spam_bar: ---- X-Spam_report: (-4.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-2.467, 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_H3=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: 1704999865775100003 The backend does not reset them until the vdpa file descriptor is closed so there is no harm in doing it only once. This allows the destination of a live migration to premap memory in batches, using VHOST_BACKEND_F_IOTLB_BATCH. Signed-off-by: Eugenio P=C3=A9rez --- hw/virtio/vhost-vdpa.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index 33ae285f87..bd4db7ba5f 100644 --- a/hw/virtio/vhost-vdpa.c +++ b/hw/virtio/vhost-vdpa.c @@ -620,6 +620,12 @@ static int vhost_vdpa_init(struct vhost_dev *dev, void= *opaque, Error **errp) v->dev =3D dev; dev->opaque =3D opaque ; v->shared->listener =3D vhost_vdpa_memory_listener; + + ret =3D vhost_vdpa_set_backend_cap(dev); + if (unlikely(ret !=3D 0)) { + return ret; + } + vhost_vdpa_init_svq(dev, v); =20 error_propagate(&dev->migration_blocker, v->migration_blocker); @@ -1506,7 +1512,6 @@ const VhostOps vdpa_ops =3D { .vhost_set_vring_kick =3D vhost_vdpa_set_vring_kick, .vhost_set_vring_call =3D vhost_vdpa_set_vring_call, .vhost_get_features =3D vhost_vdpa_get_features, - .vhost_set_backend_cap =3D vhost_vdpa_set_backend_cap, .vhost_set_owner =3D vhost_vdpa_set_owner, .vhost_set_vring_endian =3D NULL, .vhost_backend_memslots_limit =3D vhost_vdpa_memslots_limit, --=20 2.39.3