From patchwork Wed Apr 26 10:06:47 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Liu, Yi L" X-Patchwork-Id: 755379 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 3wCbtk0NXtz9s2Q for ; Wed, 26 Apr 2017 20:30:06 +1000 (AEST) Received: from localhost ([::1]:54060 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d3KCx-0007oF-G2 for incoming@patchwork.ozlabs.org; Wed, 26 Apr 2017 06:30:03 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50730) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d3K81-0003Qw-CU for qemu-devel@nongnu.org; Wed, 26 Apr 2017 06:24:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d3K7w-0002gA-F7 for qemu-devel@nongnu.org; Wed, 26 Apr 2017 06:24:57 -0400 Received: from mga01.intel.com ([192.55.52.88]:4834) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1d3K7w-0002fi-4v for qemu-devel@nongnu.org; Wed, 26 Apr 2017 06:24:52 -0400 Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 26 Apr 2017 03:24:51 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.37,254,1488873600"; d="scan'208";a="79066571" Received: from sky-dev.bj.intel.com ([10.238.145.47]) by orsmga002.jf.intel.com with ESMTP; 26 Apr 2017 03:24:47 -0700 From: "Liu, Yi L" To: qemu-devel@nongnu.org, alex.williamson@redhat.com, peterx@redhat.com Date: Wed, 26 Apr 2017 18:06:47 +0800 Message-Id: <1493201210-14357-18-git-send-email-yi.l.liu@linux.intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1493201210-14357-1-git-send-email-yi.l.liu@linux.intel.com> References: <1493201210-14357-1-git-send-email-yi.l.liu@linux.intel.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 192.55.52.88 Subject: [Qemu-devel] [RFC PATCH 17/20] Memory: Add func to fire TLB invalidate 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: tianyu.lan@intel.com, "Liu, Yi L" , kevin.tian@intel.com, yi.l.liu@intel.com, ashok.raj@intel.com, kvm@vger.kernel.org, jean-philippe.brucker@arm.com, jasowang@redhat.com, iommu@lists.linux-foundation.org, jacob.jun.pan@intel.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" This patch adds a separate function to fire IOMMU TLB invalidate notifier. Signed-off-by: Liu, Yi L --- include/exec/memory.h | 9 +++++++++ memory.c | 18 ++++++++++++++++++ 2 files changed, 27 insertions(+) diff --git a/include/exec/memory.h b/include/exec/memory.h index af15351..0155bad 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -707,6 +707,15 @@ void memory_region_notify_iommu(MemoryRegion *mr, void memory_region_notify_iommu_svm_bind(MemoryRegion *mr, void *data); +/* + * memory_region_notify_iommu_invalidate: notify IOMMU + * TLB invalidation passdown. + * + * @mr: the memory region of IOMMU + * @data: IOMMU SVM data + */ +void memory_region_notify_iommu_invalidate(MemoryRegion *mr, + void *data); /** * memory_region_notify_one: notify a change in an IOMMU translation diff --git a/memory.c b/memory.c index ce0b0ff..8c572d5 100644 --- a/memory.c +++ b/memory.c @@ -1750,6 +1750,24 @@ void memory_region_notify_iommu_svm_bind(MemoryRegion *mr, } } +void memory_region_notify_iommu_invalidate(MemoryRegion *mr, + void *data) +{ + IOMMUNotifier *iommu_notifier; + IOMMUNotifierFlag request_flags; + + assert(memory_region_is_iommu(mr)); + + request_flags = IOMMU_NOTIFIER_IOMMU_TLB_INV; + + QLIST_FOREACH(iommu_notifier, &mr->iommu_notify, node) { + if (iommu_notifier->notifier_flags & request_flags) { + iommu_notifier->notify(iommu_notifier, data); + break; + } + } +} + void memory_region_set_log(MemoryRegion *mr, bool log, unsigned client) { uint8_t mask = 1 << client;