mainline inclusion
from linux-next
commit de190555
category: feature
bugzilla: 11011
CVE: NA

-------------------------------------------------

For a while Arm64 has been capable of force enabling
or disabling the kpti mitigations. Lets make sure the
documentation reflects that.
Signed-off-by: NJeremy Linton <jeremy.linton@arm.com>
Reviewed-by: NAndre Przywara <andre.przywara@arm.com>
Signed-off-by: NJonathan Corbet <corbet@lwn.net>
Signed-off-by: NHanjun Guo <guohanjun@huawei.com>
Reviewed-by: NYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>