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 1A7B3C433B4 for ; Wed, 19 May 2021 16:47:06 +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 C863F6124C for ; Wed, 19 May 2021 16:47:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C863F6124C 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]:34926 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ljPLc-0003Zi-M0 for qemu-devel@archiver.kernel.org; Wed, 19 May 2021 12:47:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:34838) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ljP69-0004ZC-S6 for qemu-devel@nongnu.org; Wed, 19 May 2021 12:31:05 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:58322) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ljP67-0005fl-OK for qemu-devel@nongnu.org; Wed, 19 May 2021 12:31:05 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1621441863; 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=L2lLIl9UsgREXs2nPJJjVHAoVYw+HdUzi/kUksrz3ms=; b=SQB9dl1VT+jxN/gBdHd4xofx+1fC3gIkuwPAsXLOyTh/nQ3drE7EeU6VLDq6InqciPcK4T Z+GT38dygA2o2NYC34LkdBq4B1qpfecO6m5L7ObKBN0/x/yVZ1WqjWVytvGfAuF8Zc6dAb kongxf4k4QqtewzFy+5qnnGZ3rQwUT4= 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-447-l-anlM_ZMQKjN4oyPi9KlA-1; Wed, 19 May 2021 12:31:00 -0400 X-MC-Unique: l-anlM_ZMQKjN4oyPi9KlA-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 2EA80180FD69; Wed, 19 May 2021 16:30:59 +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 3DC5F5D6AC; Wed, 19 May 2021 16:30:56 +0000 (UTC) From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= To: qemu-devel@nongnu.org Subject: [RFC v3 13/29] vhost: Add vhost_get_iova_range operation Date: Wed, 19 May 2021 18:28:47 +0200 Message-Id: <20210519162903.1172366-14-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=216.205.24.124; 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" For simplicity, If a device does not support this operation it means that it can handle full (uint64_t)-1 iova address. Signed-off-by: Eugenio Pérez --- include/hw/virtio/vhost-backend.h | 5 +++++ hw/virtio/vhost-vdpa.c | 18 ++++++++++++++++++ hw/virtio/trace-events | 1 + 3 files changed, 24 insertions(+) diff --git a/include/hw/virtio/vhost-backend.h b/include/hw/virtio/vhost-backend.h index 94d3323905..bcb112c166 100644 --- a/include/hw/virtio/vhost-backend.h +++ b/include/hw/virtio/vhost-backend.h @@ -36,6 +36,7 @@ struct vhost_vring_addr; struct vhost_scsi_target; struct vhost_iotlb_msg; struct vhost_virtqueue; +struct vhost_vdpa_iova_range; typedef int (*vhost_backend_init)(struct vhost_dev *dev, void *opaque); typedef int (*vhost_backend_cleanup)(struct vhost_dev *dev); @@ -127,6 +128,9 @@ typedef bool (*vhost_force_iommu_op)(struct vhost_dev *dev); typedef int (*vhost_vring_pause_op)(struct vhost_dev *dev); +typedef int (*vhost_get_iova_range)(struct vhost_dev *dev, + hwaddr *first, hwaddr *last); + typedef struct VhostOps { VhostBackendType backend_type; vhost_backend_init vhost_backend_init; @@ -173,6 +177,7 @@ typedef struct VhostOps { vhost_get_device_id_op vhost_get_device_id; vhost_vring_pause_op vhost_vring_pause; vhost_force_iommu_op vhost_force_iommu; + vhost_get_iova_range vhost_get_iova_range; } VhostOps; extern const VhostOps user_ops; diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index 01d2101d09..74fe92935e 100644 --- a/hw/virtio/vhost-vdpa.c +++ b/hw/virtio/vhost-vdpa.c @@ -579,6 +579,23 @@ static bool vhost_vdpa_force_iommu(struct vhost_dev *dev) return true; } +static int vhost_vdpa_get_iova_range(struct vhost_dev *dev, + hwaddr *first, hwaddr *last) +{ + int ret; + struct vhost_vdpa_iova_range range; + + ret = vhost_vdpa_call(dev, VHOST_VDPA_GET_IOVA_RANGE, &range); + if (ret != 0) { + return ret; + } + + *first = range.first; + *last = range.last; + trace_vhost_vdpa_get_iova_range(dev, *first, *last); + return ret; +} + const VhostOps vdpa_ops = { .backend_type = VHOST_BACKEND_TYPE_VDPA, .vhost_backend_init = vhost_vdpa_init, @@ -611,4 +628,5 @@ const VhostOps vdpa_ops = { .vhost_get_device_id = vhost_vdpa_get_device_id, .vhost_vq_get_addr = vhost_vdpa_vq_get_addr, .vhost_force_iommu = vhost_vdpa_force_iommu, + .vhost_get_iova_range = vhost_vdpa_get_iova_range, }; diff --git a/hw/virtio/trace-events b/hw/virtio/trace-events index c62727f879..5debe3a681 100644 --- a/hw/virtio/trace-events +++ b/hw/virtio/trace-events @@ -52,6 +52,7 @@ vhost_vdpa_set_vring_call(void *dev, unsigned int index, int fd) "dev: %p index: vhost_vdpa_get_features(void *dev, uint64_t features) "dev: %p features: 0x%"PRIx64 vhost_vdpa_set_owner(void *dev) "dev: %p" vhost_vdpa_vq_get_addr(void *dev, void *vq, uint64_t desc_user_addr, uint64_t avail_user_addr, uint64_t used_user_addr) "dev: %p vq: %p desc_user_addr: 0x%"PRIx64" avail_user_addr: 0x%"PRIx64" used_user_addr: 0x%"PRIx64 +vhost_vdpa_get_iova_range(void *dev, uint64_t first, uint64_t last) "dev: %p first: 0x%"PRIx64" last: 0x%"PRIx64 # virtio.c virtqueue_alloc_element(void *elem, size_t sz, unsigned in_num, unsigned out_num) "elem %p size %zd in_num %u out_num %u" -- 2.27.0