Merge branches 'pm-core', 'pm-qos', 'pm-domains' and 'pm-opp'

[linux.git] / Documentation / ABI / testing / sysfs-kernel-iommu_groups

diff --git a/Documentation/ABI/testing/sysfs-kernel-iommu_groups b/Documentation/ABI/testing/sysfs-kernel-iommu_groups
index 9b31556cfdda8e6171b82cdfc05c51a251ff2428..35c64e00b35c055c4382762bbb782cbc70b5e72f 100644 (file)
--- a/Documentation/ABI/testing/sysfs-kernel-iommu_groups
+++ b/Documentation/ABI/testing/sysfs-kernel-iommu_groups
@@ -12,3 +12,15 @@ Description: /sys/kernel/iommu_groups/ contains a number of sub-
                file if the IOMMU driver has chosen to register a more
                common name for the group.
 Users:
+
+What:          /sys/kernel/iommu_groups/reserved_regions
+Date:          January 2017
+KernelVersion:  v4.11
+Contact:       Eric Auger <eric.auger@redhat.com>
+Description:    /sys/kernel/iommu_groups/reserved_regions list IOVA
+               regions that are reserved. Not necessarily all
+               reserved regions are listed. This is typically used to
+               output direct-mapped, MSI, non mappable regions. Each
+               region is described on a single line: the 1st field is
+               the base IOVA, the second is the end IOVA and the third
+               field describes the type of the region.