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-rw-r--r--Documentation/ABI/testing/sysfs-class-iommu17
-rw-r--r--Documentation/ABI/testing/sysfs-class-iommu-amd-iommu14
-rw-r--r--Documentation/ABI/testing/sysfs-class-iommu-intel-iommu32
3 files changed, 63 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-iommu b/Documentation/ABI/testing/sysfs-class-iommu
new file mode 100644
index 000000000000..6d0a1b4be82d
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-iommu
@@ -0,0 +1,17 @@
+What: /sys/class/iommu/<iommu>/devices/
+Date: June 2014
+KernelVersion: 3.17
+Contact: Alex Williamson <alex.williamson@redhat.com>
+Description:
+ IOMMU drivers are able to link devices managed by a
+ given IOMMU here to allow association of IOMMU to
+ device.
+
+What: /sys/devices/.../iommu
+Date: June 2014
+KernelVersion: 3.17
+Contact: Alex Williamson <alex.williamson@redhat.com>
+Description:
+ IOMMU drivers are able to link the IOMMU for a
+ given device here to allow association of device to
+ IOMMU.
diff --git a/Documentation/ABI/testing/sysfs-class-iommu-amd-iommu b/Documentation/ABI/testing/sysfs-class-iommu-amd-iommu
new file mode 100644
index 000000000000..d6ba8e8a4a97
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-iommu-amd-iommu
@@ -0,0 +1,14 @@
+What: /sys/class/iommu/<iommu>/amd-iommu/cap
+Date: June 2014
+KernelVersion: 3.17
+Contact: Alex Williamson <alex.williamson@redhat.com>
+Description:
+ IOMMU capability header as documented in the AMD IOMMU
+ specification. Format: %x
+
+What: /sys/class/iommu/<iommu>/amd-iommu/features
+Date: June 2014
+KernelVersion: 3.17
+Contact: Alex Williamson <alex.williamson@redhat.com>
+Description:
+ Extended features of the IOMMU. Format: %llx
diff --git a/Documentation/ABI/testing/sysfs-class-iommu-intel-iommu b/Documentation/ABI/testing/sysfs-class-iommu-intel-iommu
new file mode 100644
index 000000000000..258cc246d98e
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-iommu-intel-iommu
@@ -0,0 +1,32 @@
+What: /sys/class/iommu/<iommu>/intel-iommu/address
+Date: June 2014
+KernelVersion: 3.17
+Contact: Alex Williamson <alex.williamson@redhat.com>
+Description:
+ Physical address of the VT-d DRHD for this IOMMU.
+ Format: %llx. This allows association of a sysfs
+ intel-iommu with a DMAR DRHD table entry.
+
+What: /sys/class/iommu/<iommu>/intel-iommu/cap
+Date: June 2014
+KernelVersion: 3.17
+Contact: Alex Williamson <alex.williamson@redhat.com>
+Description:
+ The cached hardware capability register value
+ of this DRHD unit. Format: %llx.
+
+What: /sys/class/iommu/<iommu>/intel-iommu/ecap
+Date: June 2014
+KernelVersion: 3.17
+Contact: Alex Williamson <alex.williamson@redhat.com>
+Description:
+ The cached hardware extended capability register
+ value of this DRHD unit. Format: %llx.
+
+What: /sys/class/iommu/<iommu>/intel-iommu/version
+Date: June 2014
+KernelVersion: 3.17
+Contact: Alex Williamson <alex.williamson@redhat.com>
+Description:
+ The architecture version as reported from the
+ VT-d VER_REG. Format: %d:%d, major:minor