From mboxrd@z Thu Jan 1 00:00:00 1970 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=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 4AFD0C433B4 for ; Wed, 19 May 2021 16:50:50 +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 F207D61363 for ; Wed, 19 May 2021 16:50:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F207D61363 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:43706 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ljPPF-0001FB-0W for qemu-devel@archiver.kernel.org; Wed, 19 May 2021 12:50:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:34862) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ljP6C-0004kC-N0 for qemu-devel@nongnu.org; Wed, 19 May 2021 12:31:08 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:35956) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ljP6B-0005h2-2E for qemu-devel@nongnu.org; Wed, 19 May 2021 12:31:08 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1621441866; 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=eDk6ORb0CFQX0SjnjEy5Mjgwnx7Of5HDLZ0WqbSxD4w=; b=c9qJE3yIss8CfECwZSLXDq4OEY8M2KTVbfziJFGOTR0jDne8v41O0fn/HjVLvg1LDIphYm 95WVYwm8kMqAtsIR/2LC9oaJACN8Ze9bR9ugmftCD7/7BPUBUSaw4WdpPmAkNAAzU0omGX pxCaFJPd01B0F9crQ0Jx7WV6gFWuEAY= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-272-OB_nGhGKP5y1vWnP045JCA-1; Wed, 19 May 2021 12:31:03 -0400 X-MC-Unique: OB_nGhGKP5y1vWnP045JCA-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 72BFE108BD0C; Wed, 19 May 2021 16:31:02 +0000 (UTC) Received: from eperezma.remote.csb (ovpn-113-65.ams2.redhat.com [10.36.113.65]) by smtp.corp.redhat.com (Postfix) with ESMTP id 859ED5D6D5; Wed, 19 May 2021 16:30:59 +0000 (UTC) From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= To: qemu-devel@nongnu.org Subject: [RFC v3 14/29] vhost: add vhost_has_limited_iova_range Date: Wed, 19 May 2021 18:28:48 +0200 Message-Id: <20210519162903.1172366-15-eperezma@redhat.com> In-Reply-To: <20210519162903.1172366-1-eperezma@redhat.com> References: <20210519162903.1172366-1-eperezma@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eperezma@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.39, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Parav Pandit , "Michael S. Tsirkin" , Jason Wang , Juan Quintela , Markus Armbruster , virtualization@lists.linux-foundation.org, Harpreet Singh Anand , Xiao W Wang , Stefan Hajnoczi , Eli Cohen , Michael Lilja , Stefano Garzarella Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Eugenio Pérez --- include/hw/virtio/vhost.h | 5 +++++ hw/virtio/vhost.c | 17 +++++++++++++++++ 2 files changed, 22 insertions(+) diff --git a/include/hw/virtio/vhost.h b/include/hw/virtio/vhost.h index 67cedf83da..c97a4c0017 100644 --- a/include/hw/virtio/vhost.h +++ b/include/hw/virtio/vhost.h @@ -88,6 +88,10 @@ struct vhost_dev { bool log_enabled; bool shadow_vqs_enabled; uint64_t log_size; + struct { + hwaddr first; + hwaddr last; + } iova_range; VhostShadowVirtqueue **shadow_vqs; Error *migration_blocker; const VhostOps *vhost_ops; @@ -129,6 +133,7 @@ uint64_t vhost_get_features(struct vhost_dev *hdev, const int *feature_bits, void vhost_ack_features(struct vhost_dev *hdev, const int *feature_bits, uint64_t features); bool vhost_has_free_slot(void); +bool vhost_has_limited_iova_range(const struct vhost_dev *hdev); int vhost_net_set_backend(struct vhost_dev *hdev, struct vhost_vring_file *file); diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index 9c9c63345b..333877ca3b 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -1386,6 +1386,18 @@ int vhost_dev_init(struct vhost_dev *hdev, void *opaque, goto fail; } + if (hdev->vhost_ops->vhost_get_iova_range) { + r = hdev->vhost_ops->vhost_get_iova_range(hdev, + &hdev->iova_range.first, + &hdev->iova_range.last); + if (unlikely(r != 0)) { + error_report("Can't request IOVA range"); + goto fail; + } + } else { + hdev->iova_range.last = (hwaddr)-1; + } + for (i = 0; i < hdev->nvqs; ++i, ++n_initialized_vqs) { r = vhost_virtqueue_init(hdev, hdev->vqs + i, hdev->vq_index + i); if (r < 0) { @@ -1622,6 +1634,11 @@ void vhost_virtqueue_mask(struct vhost_dev *hdev, VirtIODevice *vdev, int n, } } +bool vhost_has_limited_iova_range(const struct vhost_dev *hdev) +{ + return hdev->iova_range.first || hdev->iova_range.last != HWADDR_MAX; +} + uint64_t vhost_get_features(struct vhost_dev *hdev, const int *feature_bits, uint64_t features) { -- 2.27.0