aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/ABI/testing/sysfs-kernel-iommu_groups
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/ABI/testing/sysfs-kernel-iommu_groups')
-rw-r--r--Documentation/ABI/testing/sysfs-kernel-iommu_groups14
1 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-kernel-iommu_groups b/Documentation/ABI/testing/sysfs-kernel-iommu_groups
new file mode 100644
index 00000000000..9b31556cfdd
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-iommu_groups
@@ -0,0 +1,14 @@
+What: /sys/kernel/iommu_groups/
+Date: May 2012
+KernelVersion: v3.5
+Contact: Alex Williamson <alex.williamson@redhat.com>
+Description: /sys/kernel/iommu_groups/ contains a number of sub-
+ directories, each representing an IOMMU group. The
+ name of the sub-directory matches the iommu_group_id()
+ for the group, which is an integer value. Within each
+ subdirectory is another directory named "devices" with
+ links to the sysfs devices contained in this group.
+ The group directory also optionally contains a "name"
+ file if the IOMMU driver has chosen to register a more
+ common name for the group.
+Users: