From patchwork Wed Apr 26 10:06:42 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: 9700979 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 D0A30603F4 for ; Wed, 26 Apr 2017 10:24:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AB16A284EE for ; Wed, 26 Apr 2017 10:24:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9FB12285F3; Wed, 26 Apr 2017 10:24:32 +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 25FDB284EE for ; Wed, 26 Apr 2017 10:24:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2998087AbdDZKYa (ORCPT ); Wed, 26 Apr 2017 06:24:30 -0400 Received: from mga01.intel.com ([192.55.52.88]:47666 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2998086AbdDZKYZ (ORCPT ); Wed, 26 Apr 2017 06:24:25 -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 03:24:24 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.37,254,1488873600"; d="scan'208";a="79066462" Received: from sky-dev.bj.intel.com ([10.238.145.47]) by orsmga002.jf.intel.com with ESMTP; 26 Apr 2017 03:24:21 -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 12/20] Memory: Add func to fire pasidt_bind notifier Date: Wed, 26 Apr 2017 18:06:42 +0800 Message-Id: <1493201210-14357-13-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 Add a separate function to fire pasid table bind notifier. In future there may be more pasid bind type with different granularity. e.g. binding pasid entry instead of binding pasid table. It can be supported by adding bind_type, check bind_type in fire func and trigger correct notifier. Signed-off-by: Liu, Yi L --- include/exec/memory.h | 11 +++++++++++ memory.c | 21 +++++++++++++++++++++ 2 files changed, 32 insertions(+) diff --git a/include/exec/memory.h b/include/exec/memory.h index 49087ef..3b8f487 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -695,6 +695,17 @@ uint64_t memory_region_iommu_get_min_page_size(MemoryRegion *mr); void memory_region_notify_iommu(MemoryRegion *mr, IOMMUTLBEntry entry); +/* + * memory_region_notify_iommu_svm_bind notify SVM bind + * request from vIOMMU emulator. + * + * @mr: the memory region of IOMMU + * @data: IOMMU SVM data + */ +void memory_region_notify_iommu_svm_bind(MemoryRegion *mr, + void *data); + + /** * memory_region_notify_one: notify a change in an IOMMU translation * entry to a single notifier diff --git a/memory.c b/memory.c index 45ef069..ce0b0ff 100644 --- a/memory.c +++ b/memory.c @@ -1729,6 +1729,27 @@ void memory_region_notify_iommu(MemoryRegion *mr, } } +void memory_region_notify_iommu_svm_bind(MemoryRegion *mr, + void *data) +{ + IOMMUNotifier *iommu_notifier; + IOMMUNotifierFlag request_flags; + + assert(memory_region_is_iommu(mr)); + + /*TODO: support other bind requests with smaller gran, + * e.g. bind signle pasid entry + */ + request_flags = IOMMU_NOTIFIER_SVM_PASIDT_BIND; + + 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;