Measurements of pseudo-locked regions were disabled because of their
incorrect usage of the performance monitoring hardware.
Cache pseudo-locking measurements are now done correctly with the
in-kernel perf API and its use can be re-enabled at this time.
The adjustment to the in-kernel perf API also separated the L2 and L3
measurements that can be triggered separately from user space.
Signed-off-by: Reinette Chatre <reinette.cha...@intel.com>
---
arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c
b/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c
index aa27e8081bae..ab371eb819fd 100644
--- a/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c
+++ b/arch/x86/kernel/cpu/intel_rdt_pseudo_lock.c
@@ -1332,7 +1332,7 @@ static ssize_t pseudo_lock_measure_trigger(struct file
*file,
buf[buf_size] = '\0';
ret = kstrtoint(buf, 10, &sel);
if (ret == 0) {
- if (sel != 1)
+ if (sel != 1 && sel != 2 && sel != 3)
return -EINVAL;
ret = debugfs_file_get(file->f_path.dentry);
if (ret)
--
2.17.0
