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-rw-r--r--Documentation/ABI/stable/sysfs-devices-system-cpu4
-rw-r--r--Documentation/ABI/testing/sysfs-devices-system-cpu6
2 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-devices-system-cpu b/Documentation/ABI/stable/sysfs-devices-system-cpu
index 3965ce504484..902392d7eddf 100644
--- a/Documentation/ABI/stable/sysfs-devices-system-cpu
+++ b/Documentation/ABI/stable/sysfs-devices-system-cpu
@@ -86,6 +86,10 @@ What: /sys/devices/system/cpu/cpuX/topology/die_cpus
Description: internal kernel map of CPUs within the same die.
Values: hexadecimal bitmask.
+What: /sys/devices/system/cpu/cpuX/topology/ppin
+Description: per-socket protected processor inventory number
+Values: hexadecimal.
+
What: /sys/devices/system/cpu/cpuX/topology/die_cpus_list
Description: human-readable list of CPUs within the same die.
The format is like 0-3, 8-11, 14,17.
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
index 2281d5eff403..2ad01cad7f1c 100644
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -73,6 +73,7 @@ What: /sys/devices/system/cpu/cpuX/topology/core_id
/sys/devices/system/cpu/cpuX/topology/physical_package_id
/sys/devices/system/cpu/cpuX/topology/thread_siblings
/sys/devices/system/cpu/cpuX/topology/thread_siblings_list
+ /sys/devices/system/cpu/cpuX/topology/ppin
Date: December 2008
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
Description: CPU topology files that describe a logical CPU's relationship
@@ -103,6 +104,11 @@ Description: CPU topology files that describe a logical CPU's relationship
thread_siblings_list: human-readable list of cpuX's hardware
threads within the same core as cpuX
+ ppin: human-readable Protected Processor Identification
+ Number of the socket the cpu# belongs to. There should be
+ one per physical_package_id. File is readable only to
+ admin.
+
See Documentation/admin-guide/cputopology.rst for more information.