diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index d82ce17f2962..460924407875 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -416,6 +416,7 @@ static struct cpu_attr cpu_attrs[] = {
 	_CPU_ATTR(online, &__cpu_online_mask),
 	_CPU_ATTR(possible, &__cpu_possible_mask),
 	_CPU_ATTR(present, &__cpu_present_mask),
+	_CPU_ATTR(core_ctl_isolated, &__cpu_isolated_mask),
 };
 
 /*
@@ -651,6 +652,7 @@ static struct attribute *cpu_root_attrs[] = {
 	&cpu_attrs[0].attr.attr,
 	&cpu_attrs[1].attr.attr,
 	&cpu_attrs[2].attr.attr,
+	&cpu_attrs[3].attr.attr,
 	&dev_attr_kernel_max.attr,
 	&dev_attr_offline.attr,
 	&dev_attr_isolated.attr,