From patchwork Tue Dec 6 10:36:23 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Xu X-Patchwork-Id: 9462321 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 182F06022E for ; Tue, 6 Dec 2016 10:47:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1A2B327D13 for ; Tue, 6 Dec 2016 10:47:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0E5B9280DE; Tue, 6 Dec 2016 10:47:17 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id B829E27D13 for ; Tue, 6 Dec 2016 10:47:16 +0000 (UTC) Received: from localhost ([::1]:48912 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cEDHH-0007Xw-MJ for patchwork-qemu-devel@patchwork.kernel.org; Tue, 06 Dec 2016 05:47:15 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:54811) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cED7Q-0007VJ-67 for qemu-devel@nongnu.org; Tue, 06 Dec 2016 05:37:05 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cED7P-00020D-2z for qemu-devel@nongnu.org; Tue, 06 Dec 2016 05:37:04 -0500 Received: from mx1.redhat.com ([209.132.183.28]:35050) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cED7O-0001zI-TS for qemu-devel@nongnu.org; Tue, 06 Dec 2016 05:37:03 -0500 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (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 09C99C04D2A8; Tue, 6 Dec 2016 10:37:02 +0000 (UTC) Received: from pxdev.xzpeter.org.com (dhcp-14-171.nay.redhat.com [10.66.14.171]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id uB6AaVDu027788; Tue, 6 Dec 2016 05:36:59 -0500 From: Peter Xu To: qemu-devel@nongnu.org Date: Tue, 6 Dec 2016 18:36:23 +0800 Message-Id: <1481020588-4245-9-git-send-email-peterx@redhat.com> In-Reply-To: <1481020588-4245-1-git-send-email-peterx@redhat.com> References: <1481020588-4245-1-git-send-email-peterx@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Tue, 06 Dec 2016 10:37:02 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [RFC PATCH 08/13] memory: provide iommu_replay_all() 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: tianyu.lan@intel.com, kevin.tian@intel.com, mst@redhat.com, jan.kiszka@siemens.com, bd.aviv@gmail.com, peterx@redhat.com, alex.williamson@redhat.com, jasowang@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP This is an "global" version of exising memory_region_iommu_replay() - we announce the translations to all the registered notifiers, instead of a specific one. Signed-off-by: Peter Xu --- include/exec/memory.h | 8 ++++++++ memory.c | 9 +++++++++ 2 files changed, 17 insertions(+) diff --git a/include/exec/memory.h b/include/exec/memory.h index cb2d432..1669c7b 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -693,6 +693,14 @@ void memory_region_iommu_replay(MemoryRegion *mr, IOMMUNotifier *n, bool is_write); /** + * memory_region_iommu_replay_all: replay existing IOMMU translations + * to all the notifiers registered. + * + * @mr: the memory region to observe + */ +void memory_region_iommu_replay_all(MemoryRegion *mr); + +/** * memory_region_unregister_iommu_notifier: unregister a notifier for * changes to IOMMU translation entries. * diff --git a/memory.c b/memory.c index f73c897..62ca6e0 100644 --- a/memory.c +++ b/memory.c @@ -1641,6 +1641,15 @@ void memory_region_iommu_replay(MemoryRegion *mr, IOMMUNotifier *n, } } +void memory_region_iommu_replay_all(MemoryRegion *mr) +{ + IOMMUNotifier *notifier; + + QLIST_FOREACH(notifier, &mr->iommu_notify, node) { + memory_region_iommu_replay(mr, notifier, false); + } +} + void memory_region_unregister_iommu_notifier(MemoryRegion *mr, IOMMUNotifier *n) {