From patchwork Fri Jun 7 14:37:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 13690759 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 75190C27C55 for ; Fri, 7 Jun 2024 23:53:13 +0000 (UTC) Received: from [::1] (helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sFal0-0006rZ-TS; Fri, 07 Jun 2024 10:39:54 -0400 Received: from [2001:470:142:3::10] (helo=eggs.gnu.org) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sFaky-0006m4-Sp for qemu-devel@nongnu.org; Fri, 07 Jun 2024 10:39:52 -0400 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 1sFakx-0003Pi-CP for qemu-devel@nongnu.org; Fri, 07 Jun 2024 10:39:52 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1717771190; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=NZxtuEQbwcSWkjTtgaPcpq0g8+TJ5S9KsG5IajnwesQ=; b=ZMEaHJ142OvevFzBmTi+uHvScW70ygBuO33dJqOepZM7xIH2BET9fF62vXW97T425dKKvH N2Udf4pSd+spkOI39qroAIv78Uckz+Ha9yz/Xf8h7z6J+WSH1tvpQSryk4K5c3IsUvKzZi LrBR2dHtp4/CkOpgOF1htP5eYQySav8= Received: from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-133-gT1PyPkvOFaDGANimmSrCw-1; Fri, 07 Jun 2024 10:39:46 -0400 X-MC-Unique: gT1PyPkvOFaDGANimmSrCw-1 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (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 mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 62E9E19560BB; Fri, 7 Jun 2024 14:39:44 +0000 (UTC) Received: from laptop.redhat.com (unknown [10.39.193.191]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 8B99F1956048; Fri, 7 Jun 2024 14:39:38 +0000 (UTC) From: Eric Auger To: eric.auger.pro@gmail.com, eric.auger@redhat.com, qemu-devel@nongnu.org, qemu-arm@nongnu.org, mst@redhat.com, jean-philippe@linaro.org, imammedo@redhat.com, peter.maydell@linaro.org, clg@redhat.com, yanghliu@redhat.com, zhenzhong.duan@intel.com Cc: alex.williamson@redhat.com, jasowang@redhat.com, pbonzini@redhat.com, berrange@redhat.com Subject: [RFC v2 5/7] virtio-iommu: Remove the implementation of iommu_set_iova_range Date: Fri, 7 Jun 2024 16:37:25 +0200 Message-ID: <20240607143905.765133-6-eric.auger@redhat.com> In-Reply-To: <20240607143905.765133-1-eric.auger@redhat.com> References: <20240607143905.765133-1-eric.auger@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Received-SPF: pass client-ip=170.10.129.124; envelope-from=eric.auger@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 12 X-Spam_score: 1.2 X-Spam_bar: + X-Spam_report: (1.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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, RCVD_IN_SBL_CSS=3.335, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Now that we use PCIIOMMUOps to convey information about usable IOVA ranges we do not to implement the iommu_set_iova_ranges IOMMU MR callback. Signed-off-by: Eric Auger Reviewed-by: Zhenzhong Duan --- hw/virtio/virtio-iommu.c | 67 ---------------------------------------- 1 file changed, 67 deletions(-) diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c index 33e9682b83..643bbb060b 100644 --- a/hw/virtio/virtio-iommu.c +++ b/hw/virtio/virtio-iommu.c @@ -1360,72 +1360,6 @@ static int virtio_iommu_set_page_size_mask(IOMMUMemoryRegion *mr, return 0; } -/** - * virtio_iommu_set_iova_ranges: Conveys the usable IOVA ranges - * - * The function turns those into reserved ranges. Once some - * reserved ranges have been set, new reserved regions cannot be - * added outside of the original ones. - * - * @mr: IOMMU MR - * @iova_ranges: list of usable IOVA ranges - * @errp: error handle - */ -static int virtio_iommu_set_iova_ranges(IOMMUMemoryRegion *mr, - GList *iova_ranges, - Error **errp) -{ - IOMMUDevice *sdev = container_of(mr, IOMMUDevice, iommu_mr); - GList *current_ranges = sdev->host_resv_ranges; - GList *l, *tmp, *new_ranges = NULL; - int ret = -EINVAL; - - /* check that each new resv region is included in an existing one */ - if (sdev->host_resv_ranges) { - range_inverse_array(iova_ranges, - &new_ranges, - 0, UINT64_MAX); - - for (tmp = new_ranges; tmp; tmp = tmp->next) { - Range *newr = (Range *)tmp->data; - bool included = false; - - for (l = current_ranges; l; l = l->next) { - Range * r = (Range *)l->data; - - if (range_contains_range(r, newr)) { - included = true; - break; - } - } - if (!included) { - goto error; - } - } - /* all new reserved ranges are included in existing ones */ - ret = 0; - goto out; - } - - if (sdev->probe_done) { - warn_report("%s: Notified about new host reserved regions after probe", - mr->parent_obj.name); - } - - range_inverse_array(iova_ranges, - &sdev->host_resv_ranges, - 0, UINT64_MAX); - rebuild_resv_regions(sdev); - - return 0; -error: - error_setg(errp, "IOMMU mr=%s Conflicting host reserved ranges set!", - mr->parent_obj.name); -out: - g_list_free_full(new_ranges, g_free); - return ret; -} - static void virtio_iommu_system_reset(void *opaque) { VirtIOIOMMU *s = opaque; @@ -1751,7 +1685,6 @@ static void virtio_iommu_memory_region_class_init(ObjectClass *klass, imrc->replay = virtio_iommu_replay; imrc->notify_flag_changed = virtio_iommu_notify_flag_changed; imrc->iommu_set_page_size_mask = virtio_iommu_set_page_size_mask; - imrc->iommu_set_iova_ranges = virtio_iommu_set_iova_ranges; } static const TypeInfo virtio_iommu_info = {