From patchwork Mon Oct 19 10:43:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Eugenio Perez Martin X-Patchwork-Id: 11844077 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D41B2157C for ; Mon, 19 Oct 2020 10:52:18 +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 5F6CF22263 for ; Mon, 19 Oct 2020 10:52:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="G7E6Uy4s" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5F6CF22263 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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:50060 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kUSm1-0007Up-7Z for patchwork-qemu-devel@patchwork.kernel.org; Mon, 19 Oct 2020 06:52:17 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35006) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kUSeM-00080R-AG for qemu-devel@nongnu.org; Mon, 19 Oct 2020 06:44:22 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:22559) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kUSeK-0000sa-Fx for qemu-devel@nongnu.org; Mon, 19 Oct 2020 06:44:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1603104259; 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=v5B3t3XCxMQs1HUtG1Qyz3lDsRgW8bKPDQ5//xb+e6U=; b=G7E6Uy4s1vh7wd5Lozd4e8tipDUApwNA5notfVK282WSFmvib/GQ1VTicLxMUgU0f0rNP/ QGnHuLSFoLQ+rDrQo8yhzVcj2Lr7q71oP8MoKNUVmTiX5sr/jgBYLYVg9H9mL5ZZOETlUC R++rrujcs+7D8Sl192/pcGqbT6mXkwA= 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-255-yclZmFcqMi2cabgcfmHVoA-1; Mon, 19 Oct 2020 06:44:17 -0400 X-MC-Unique: yclZmFcqMi2cabgcfmHVoA-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 48044107AD93; Mon, 19 Oct 2020 10:44:16 +0000 (UTC) Received: from eperezma.remote.csb (ovpn-113-59.ams2.redhat.com [10.36.113.59]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3BBD210013C4; Mon, 19 Oct 2020 10:44:12 +0000 (UTC) From: =?utf-8?q?Eugenio_P=C3=A9rez?= To: qemu-devel@nongnu.org, Peter Xu , "Michael S. Tsirkin" Subject: [PATCH v2 3/5] memory: Add IOMMU_NOTIFIER_DEVIOTLB_UNMAP IOMMUTLBNotificationType Date: Mon, 19 Oct 2020 12:43:30 +0200 Message-Id: <20201019104332.22033-4-eperezma@redhat.com> In-Reply-To: <20201019104332.22033-1-eperezma@redhat.com> References: <20201019104332.22033-1-eperezma@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 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 Received-SPF: pass client-ip=216.205.24.124; envelope-from=eperezma@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/19 01:44:30 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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: Peter Maydell , Aleksandar Rikalo , Yan Zhao , Eduardo Habkost , Juan Quintela , qemu-ppc@nongnu.org, Jason Wang , Eric Auger , qemu-arm@nongnu.org, =?utf-8?q?Herv=C3=A9_Poussineau?= , Avi Kivity , Paolo Bonzini , Richard Henderson , David Gibson Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" This allows us to differentiate between regular IOMMU map/unmap events and DEVIOTLB unmap. Doing so, notifiers that only need device IOTLB invalidations will not receive regular IOMMU unmappings. Adapt intel and vhost to use it. Signed-off-by: Eugenio Pérez Reviewed-by: Peter Xu Reviewed-by: Juan Quintela --- include/exec/memory.h | 7 ++++++- hw/i386/intel_iommu.c | 2 +- hw/virtio/vhost.c | 2 +- 3 files changed, 8 insertions(+), 3 deletions(-) diff --git a/include/exec/memory.h b/include/exec/memory.h index ab60870c76..f33ee672c6 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -82,9 +82,14 @@ typedef enum { IOMMU_NOTIFIER_UNMAP = 0x1, /* Notify entry changes (newly created entries) */ IOMMU_NOTIFIER_MAP = 0x2, + /* Notify changes on device IOTLB entries */ + IOMMU_NOTIFIER_DEVIOTLB_UNMAP = 0x04, } IOMMUNotifierFlag; -#define IOMMU_NOTIFIER_ALL (IOMMU_NOTIFIER_MAP | IOMMU_NOTIFIER_UNMAP) +#define IOMMU_NOTIFIER_IOTLB_EVENTS (IOMMU_NOTIFIER_MAP | IOMMU_NOTIFIER_UNMAP) +#define IOMMU_NOTIFIER_DEVIOTLB_EVENTS IOMMU_NOTIFIER_DEVIOTLB_UNMAP +#define IOMMU_NOTIFIER_ALL (IOMMU_NOTIFIER_IOTLB_EVENTS | \ + IOMMU_NOTIFIER_DEVIOTLB_EVENTS) struct IOMMUNotifier; typedef void (*IOMMUNotify)(struct IOMMUNotifier *notifier, diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c index 3976161317..6cc217742a 100644 --- a/hw/i386/intel_iommu.c +++ b/hw/i386/intel_iommu.c @@ -2468,7 +2468,7 @@ static bool vtd_process_device_iotlb_desc(IntelIOMMUState *s, sz = VTD_PAGE_SIZE; } - event.type = IOMMU_NOTIFIER_UNMAP; + event.type = IOMMU_NOTIFIER_DEVIOTLB_UNMAP; event.entry.target_as = &vtd_dev_as->as; event.entry.addr_mask = sz - 1; event.entry.iova = addr; diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index 3077fa6ef5..6816037d6e 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -728,7 +728,7 @@ static void vhost_iommu_region_add(MemoryListener *listener, iommu_idx = memory_region_iommu_attrs_to_index(iommu_mr, MEMTXATTRS_UNSPECIFIED); iommu_notifier_init(&iommu->n, vhost_iommu_unmap_notify, - IOMMU_NOTIFIER_UNMAP, + IOMMU_NOTIFIER_DEVIOTLB_UNMAP, section->offset_within_region, int128_get64(end), iommu_idx);