[PATCH 0/6] Intel IOMMU debugfs support
From: Sohil Mehta
Date: Thu Oct 12 2017 - 20:03:42 EST
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
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: Debugfs support for Intel IOMMU Interrupt remapping
drivers/iommu/Kconfig | 10 +
drivers/iommu/Makefile | 1 +
drivers/iommu/intel-iommu-debug.c | 429 ++++++++++++++++++++++++++++++++++++++
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, 488 insertions(+), 37 deletions(-)
create mode 100644 drivers/iommu/intel-iommu-debug.c
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2.7.4