From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 052BE42B9D; Thu, 25 May 2023 18:18:30 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 1871A42D5A; Thu, 25 May 2023 18:16:59 +0200 (CEST) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by mails.dpdk.org (Postfix) with ESMTP id 79EF540FAE for ; Thu, 25 May 2023 18:16:56 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1685031416; 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=y+TEPirlb+wDds0kd2o148PP5zMX1aP0VmLytrR1aKU=; b=dtQuDCRKAabZP+pIyx8/IF8i7ULl4tDT2DaHwSkfY5l5NL2ZIcFmQqEQ4y2MSB/Jlb4cNh SimPnQPPDO/d6wDKekIK5e3v/RvOEzDcNpcMKKHJbxMOWrQ6Z1sejO8K7wazuQseS4suGq UzDc8+zmEYLaBfQncPihaEEmKxNHDik= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-647-Em19X1gnP66vnVpLha3jiA-1; Thu, 25 May 2023 12:16:54 -0400 X-MC-Unique: Em19X1gnP66vnVpLha3jiA-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 7D3F73C13509; Thu, 25 May 2023 16:16:54 +0000 (UTC) Received: from max-t490s.redhat.com (unknown [10.39.208.23]) by smtp.corp.redhat.com (Postfix) with ESMTP id F1844C154D1; Thu, 25 May 2023 16:16:51 +0000 (UTC) From: Maxime Coquelin To: dev@dpdk.org, chenbo.xia@intel.com, david.marchand@redhat.com, mkp@redhat.com, fbl@redhat.com, jasowang@redhat.com, cunming.liang@intel.com, xieyongji@bytedance.com, echaudro@redhat.com, eperezma@redhat.com, amorenoz@redhat.com, lulu@redhat.com Cc: Maxime Coquelin Subject: [PATCH v2 20/28] vhost: add VDUSE callback for IOTLB entry removal Date: Thu, 25 May 2023 18:15:42 +0200 Message-Id: <20230525161551.70002-21-maxime.coquelin@redhat.com> In-Reply-To: <20230525161551.70002-1-maxime.coquelin@redhat.com> References: <20230525161551.70002-1-maxime.coquelin@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.8 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII"; x-default=true X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org This patch implements the VDUSE callback for IOTLB entry removal, where it unmaps the pages from the invalidated IOTLB entry. Signed-off-by: Maxime Coquelin --- lib/vhost/vduse.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/lib/vhost/vduse.c b/lib/vhost/vduse.c index f72c7bf6ab..58c1b384a8 100644 --- a/lib/vhost/vduse.c +++ b/lib/vhost/vduse.c @@ -42,6 +42,12 @@ (1ULL << VIRTIO_F_IN_ORDER) | \ (1ULL << VIRTIO_F_IOMMU_PLATFORM)) +static void +vduse_iotlb_remove_notify(uint64_t addr, uint64_t offset, uint64_t size) +{ + munmap((void *)(uintptr_t)addr, offset + size); +} + static int vduse_iotlb_miss(struct virtio_net *dev, uint64_t iova, uint8_t perm __rte_unused) { @@ -99,6 +105,7 @@ vduse_iotlb_miss(struct virtio_net *dev, uint64_t iova, uint8_t perm __rte_unuse static struct vhost_backend_ops vduse_backend_ops = { .iotlb_miss = vduse_iotlb_miss, + .iotlb_remove_notify = vduse_iotlb_remove_notify, }; int -- 2.40.1