1 files changed, 13 insertions, 0 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 249d1e0824b5..862adb9bf0d4 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -586,6 +586,16 @@ config AMD_IOMMU
           your BIOS for an option to enable it or if you have an IVRS ACPI
           table.
 
+config AMD_IOMMU_STATS
+        bool "Export AMD IOMMU statistics to debugfs"
+        depends on AMD_IOMMU
+        select DEBUG_FS
+        help
+          This option enables code in the AMD IOMMU driver to collect various
+          statistics about whats happening in the driver and exports that
+          information to userspace via debugfs.
+          If unsure, say N.
+
 # need this always selected by IOMMU for the VIA workaround
 config SWIOTLB
         def_bool y if X86_64
@@ -599,6 +609,9 @@ config SWIOTLB
 config IOMMU_HELPER
         def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB || AMD_IOMMU)
 
+config IOMMU_API
+        def_bool (AMD_IOMMU || DMAR)
+
 config MAXSMP
         bool "Configure Maximum number of SMP Processors and NUMA Nodes"
         depends on X86_64 && SMP && DEBUG_KERNEL && EXPERIMENTAL