@@ -124,3 +124,18 @@ Description: admin read only
created and give error when reading it.
* The end user reading this sysfs file need to decode sysfs file data as per
underneath platform/firmware.
+
+What: /sys/devices/hv_gpci/interface/affinity_domain_via_virtual_processor
+Date: June 2023
+Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
+Description: admin read only
+ This sysfs file exposes the system topology information by making HCALL
+ H_GET_PERF_COUNTER_INFO. The HCALL is made with counter request value
+ AFFINITY_DOMAIN_INFORMATION_BY_VIRTUAL_PROCESSOR(0xA0).
+ * This sysfs file is only be created for power10 and above platforms.
+ * User need root access to read data from this sysfs file.
+ * Incase the HCALL fails with hardware/permission issue, or the support for
+ AFFINITY_DOMAIN_INFORMATION_BY_VIRTUAL_PROCESSOR counter request value
+ removed, this sysfs file still be created and give error when reading it.
+ * The end user reading this sysfs file need to decode sysfs file data as per
+ underneath platform/firmware.
Add details of the new hv-gpci interface file called "affinity_domain_via_virtual_processor" in the ABI documentation. Signed-off-by: Kajol Jain <kjain@linux.ibm.com> --- .../sysfs-bus-event_source-devices-hv_gpci | 15 +++++++++++++++ 1 file changed, 15 insertions(+)