summaryrefslogtreecommitdiffstats
path: root/kernel/Documentation/ABI/testing/sysfs-class-iommu-intel-iommu
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/Documentation/ABI/testing/sysfs-class-iommu-intel-iommu')
-rw-r--r--kernel/Documentation/ABI/testing/sysfs-class-iommu-intel-iommu32
1 files changed, 32 insertions, 0 deletions
diff --git a/kernel/Documentation/ABI/testing/sysfs-class-iommu-intel-iommu b/kernel/Documentation/ABI/testing/sysfs-class-iommu-intel-iommu
new file mode 100644
index 000000000..258cc246d
--- /dev/null
+++ b/kernel/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