From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50557) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d3K7W-0002yz-Ec for qemu-devel@nongnu.org; Wed, 26 Apr 2017 06:24:27 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d3K7V-0002X1-4o for qemu-devel@nongnu.org; Wed, 26 Apr 2017 06:24:26 -0400 Received: from mga03.intel.com ([134.134.136.65]:25915) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1d3K7U-0002V7-Qc for qemu-devel@nongnu.org; Wed, 26 Apr 2017 06:24:25 -0400 From: "Liu, Yi L" Date: Wed, 26 Apr 2017 18:06:42 +0800 Message-Id: <1493201210-14357-13-git-send-email-yi.l.liu@linux.intel.com> 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> Subject: [Qemu-devel] [RFC PATCH 12/20] Memory: Add func to fire pasidt_bind notifier List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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" 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; -- 1.9.1