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authorGary R Hook <gary.hook@amd.com>2018-06-13 00:41:30 +0300
committerJoerg Roedel <jroedel@suse.de>2018-07-06 15:06:30 +0300
commit7d0f5fd3e4d687424cc2ab68b55472e328e2ee0a (patch)
tree4005d7036fae71fcef2dc6c93f7e653d8f75a546 /drivers/iommu/Kconfig
parentbad614b24293ae463e74d2465685f0e4e229baca (diff)
downloadlinux-7d0f5fd3e4d687424cc2ab68b55472e328e2ee0a.tar.xz
iommu/amd: Add basic debugfs infrastructure for AMD IOMMU
Implement a skeleton framework for debugfs support in the AMD IOMMU. Add an AMD-specific Kconfig boolean that depends upon general enablement of DebugFS in the IOMMU. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/Kconfig')
-rw-r--r--drivers/iommu/Kconfig12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index ab9181d8af3b..8d0a2886658f 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -145,6 +145,18 @@ config AMD_IOMMU_V2
hardware. Select this option if you want to use devices that support
the PCI PRI and PASID interface.
+config AMD_IOMMU_DEBUGFS
+ bool "Enable AMD IOMMU internals in DebugFS"
+ depends on AMD_IOMMU && IOMMU_DEBUGFS
+ ---help---
+ !!!WARNING!!! !!!WARNING!!! !!!WARNING!!! !!!WARNING!!!
+
+ DO NOT ENABLE THIS OPTION UNLESS YOU REALLY, -REALLY- KNOW WHAT YOU ARE DOING!!!
+ Exposes AMD IOMMU device internals in DebugFS.
+
+ This option is -NOT- intended for production environments, and should
+ not generally be enabled.
+
# Intel IOMMU support
config DMAR_TABLE
bool