From patchwork Mon Nov 7 07:09:53 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Wang X-Patchwork-Id: 691778 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3tC3d92Mjcz9t3K for ; Mon, 7 Nov 2016 18:15:57 +1100 (AEDT) Received: from localhost ([::1]:51712 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c3e9q-0001A3-CG for incoming@patchwork.ozlabs.org; Mon, 07 Nov 2016 02:15:54 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44888) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c3e4g-0005IU-OJ for qemu-devel@nongnu.org; Mon, 07 Nov 2016 02:10:35 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c3e4f-0002l6-W8 for qemu-devel@nongnu.org; Mon, 07 Nov 2016 02:10:34 -0500 Received: from mx1.redhat.com ([209.132.183.28]:45244) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1c3e4f-0002kH-QQ for qemu-devel@nongnu.org; Mon, 07 Nov 2016 02:10:33 -0500 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 316ECC056790; Mon, 7 Nov 2016 07:10:33 +0000 (UTC) Received: from jason-ThinkPad-T450s.redhat.com (vpn1-5-181.pek2.redhat.com [10.72.5.181]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id uA779tmr014620; Mon, 7 Nov 2016 02:10:29 -0500 From: Jason Wang To: qemu-devel@nongnu.org, mst@redhat.com Date: Mon, 7 Nov 2016 15:09:53 +0800 Message-Id: <1478502595-8484-9-git-send-email-jasowang@redhat.com> In-Reply-To: <1478502595-8484-1-git-send-email-jasowang@redhat.com> References: <1478502595-8484-1-git-send-email-jasowang@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Mon, 07 Nov 2016 07:10:33 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH V3 08/10] memory: handle alias for iommu notifier X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jason Wang , peterx@redhat.com, vkaplans@redhat.com, wexu@redhat.com, cornelia.huck@de.ibm.com, pbonzini@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Cc: Paolo Bonzini Acked-by: Paolo Bonzini Signed-off-by: Jason Wang Reviewed-by: Peter Xu --- memory.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/memory.c b/memory.c index 33110e9..2bfc37f 100644 --- a/memory.c +++ b/memory.c @@ -1603,6 +1603,11 @@ static void memory_region_update_iommu_notify_flags(MemoryRegion *mr) void memory_region_register_iommu_notifier(MemoryRegion *mr, IOMMUNotifier *n) { + if (mr->alias) { + memory_region_register_iommu_notifier(mr->alias, n); + return; + } + /* We need to register for at least one bitfield */ assert(n->notifier_flags != IOMMU_NOTIFIER_NONE); QLIST_INSERT_HEAD(&mr->iommu_notify, n, node); @@ -1643,6 +1648,10 @@ void memory_region_iommu_replay(MemoryRegion *mr, IOMMUNotifier *n, void memory_region_unregister_iommu_notifier(MemoryRegion *mr, IOMMUNotifier *n) { + if (mr->alias) { + memory_region_unregister_iommu_notifier(mr->alias, n); + return; + } QLIST_REMOVE(n, node); memory_region_update_iommu_notify_flags(mr); }