diff options
| author | Jeremy Linton <jeremy.linton@arm.com> | 2019-01-25 12:07:00 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-29 10:24:40 +0100 |
| commit | 8973a61e77444907ff2ea7feb53f9f5edcdc7296 (patch) | |
| tree | 4804daee6498d322c8d29c9f1349575aaa829005 /Documentation | |
| parent | 51772996274874a6bccda05b827f92582ce7b565 (diff) | |
Documentation: Document arm64 kpti control
commit de19055564c8f8f9d366f8db3395836da0b2176c upstream.
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: Jeremy Linton <jeremy.linton@arm.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
[florian: patch the correct file]
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 1bc12619bedd..b2d2f4539a3f 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1965,6 +1965,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted. kmemcheck=2 (one-shot mode) Default: 2 (one-shot mode) + kpti= [ARM64] Control page table isolation of user + and kernel address spaces. + Default: enabled on cores which need mitigation. + 0: force disabled + 1: force enabled + kstack=N [X86] Print N words from the kernel stack in oops dumps. |