From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751500AbdKVTZb (ORCPT ); Wed, 22 Nov 2017 14:25:31 -0500 Received: from mga01.intel.com ([192.55.52.88]:43065 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751249AbdKVTZa (ORCPT ); Wed, 22 Nov 2017 14:25:30 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.44,436,1505804400"; d="scan'208";a="10816012" From: Sohil Mehta To: Joerg Roedel , Alex Williamson Cc: David Woodhouse , Ashok Raj , iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Jacob Pan , Gayatri Kammela , Sohil Mehta , Ravi V Shankar , Andriy Shevchenko Subject: [PATCH v2 0/6] Intel IOMMU debugfs support Date: Wed, 22 Nov 2017 11:25:40 -0800 Message-Id: <1511378746-109275-1-git-send-email-sohil.mehta@intel.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, This series aims to add debugfs support for Intel IOMMU. It exposes IOMMU registers, internal context and dumps individual table entries to help debug Intel IOMMUs. The first patch does the ground work for the following patches by creating a new Kconfig option - INTEL_IOMMU_DEBUG. It also reorganizes some Intel IOMMU data structures. The next five patches add debugfs support for IOMMU context internals, extended context, register contents, PASID internals, and Interrupt remapping in that order. The information can be accessed in sysfs at '/sys/kernel/debug/intel_iommu/'. Regards, Sohil Changes since v1: - Fixed seq_printf formatting - Handled the case when Interrupt remapping is not enabled Gayatri Kammela (5): iommu/vt-d: Add debugfs support for Intel IOMMU internals iommu/vt-d: Add Intel IOMMU debugfs to show context internals iommu/vt-d: Add Intel IOMMU debugfs to show extended context internals iommu/vt-d: Add debugfs extension to show register contents iommu/vt-d: Add debugfs extension to show Pasid table contents Sohil Mehta (1): iommu/vt-d: Add debugfs support for Intel IOMMU Interrupt remapping drivers/iommu/Kconfig | 10 + drivers/iommu/Makefile | 1 + drivers/iommu/intel-iommu-debug.c | 435 ++++++++++++++++++++++++++++++++++++++ drivers/iommu/intel-iommu.c | 35 +-- drivers/iommu/intel-svm.c | 8 - include/linux/intel-iommu.h | 32 +++ include/linux/intel-svm.h | 10 +- 7 files changed, 494 insertions(+), 37 deletions(-) create mode 100644 drivers/iommu/intel-iommu-debug.c -- 2.7.4