From patchwork Thu Apr 6 07:08:38 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Xu X-Patchwork-Id: 747618 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 3vzDPP4tm2z9ryQ for ; Thu, 6 Apr 2017 17:10:17 +1000 (AEST) Received: from localhost ([::1]:44122 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cw1Yd-0003gX-4m for incoming@patchwork.ozlabs.org; Thu, 06 Apr 2017 03:10:15 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41743) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cw1Xw-0003eK-EV for qemu-devel@nongnu.org; Thu, 06 Apr 2017 03:09:33 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cw1Xv-0002Sy-Iu for qemu-devel@nongnu.org; Thu, 06 Apr 2017 03:09:32 -0400 Received: from mx1.redhat.com ([209.132.183.28]:41686) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cw1Xv-0002Sk-Cs for qemu-devel@nongnu.org; Thu, 06 Apr 2017 03:09:31 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 68852AA463; Thu, 6 Apr 2017 07:09:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 68852AA463 Authentication-Results: ext-mx06.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx06.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=peterx@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 68852AA463 Received: from pxdev.xzpeter.org.com (ovpn-8-73.pek2.redhat.com [10.72.8.73]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8E85F7DB33; Thu, 6 Apr 2017 07:09:25 +0000 (UTC) From: Peter Xu To: qemu-devel@nongnu.org Date: Thu, 6 Apr 2017 15:08:38 +0800 Message-Id: <1491462524-1617-4-git-send-email-peterx@redhat.com> In-Reply-To: <1491462524-1617-1-git-send-email-peterx@redhat.com> References: <1491462524-1617-1-git-send-email-peterx@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Thu, 06 Apr 2017 07:09:30 +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] [PATCH v8 3/9] 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, jasowang@redhat.com, peterx@redhat.com, alex.williamson@redhat.com, Marcel Apfelbaum , bd.aviv@gmail.com, David Gibson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" 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. Reviewed-by: David Gibson Signed-off-by: Peter Xu Reviewed-by: Michael S. Tsirkin --- 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 07e43da..fb7dff3 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -713,6 +713,14 @@ 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 7496b3d..b4ed67b 100644 --- a/memory.c +++ b/memory.c @@ -1642,6 +1642,15 @@ void memory_region_iommu_replay(MemoryRegion *mr, IOMMUNotifier *n, } } +void memory_region_iommu_replay_all(MemoryRegion *mr) +{ + IOMMUNotifier *notifier; + + IOMMU_NOTIFIER_FOREACH(notifier, mr) { + memory_region_iommu_replay(mr, notifier, false); + } +} + void memory_region_unregister_iommu_notifier(MemoryRegion *mr, IOMMUNotifier *n) {