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: 9700993 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 AF02A603F4 for ; Wed, 26 Apr 2017 10:25:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8BD6F284EE for ; Wed, 26 Apr 2017 10:25:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 80826285F0; Wed, 26 Apr 2017 10:25:07 +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 vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 26253284EE for ; Wed, 26 Apr 2017 10:25:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2998106AbdDZKZE (ORCPT ); Wed, 26 Apr 2017 06:25:04 -0400 Received: from mga04.intel.com ([192.55.52.120]:24339 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2998103AbdDZKYv (ORCPT ); Wed, 26 Apr 2017 06:24:51 -0400 Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 26 Apr 2017 03:24:50 -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 Cc: kvm@vger.kernel.org, jasowang@redhat.com, iommu@lists.linux-foundation.org, kevin.tian@intel.com, ashok.raj@intel.com, jacob.jun.pan@intel.com, tianyu.lan@intel.com, yi.l.liu@intel.com, jean-philippe.brucker@arm.com, "Liu, Yi L" Subject: [RFC PATCH 17/20] Memory: Add func to fire TLB invalidate notifier 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> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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;