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| author | Jeremy Linton <jeremy.linton@arm.com> | 2019-01-25 12:07:00 -0600 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2019-02-06 17:26:04 -0700 |
| commit | de19055564c8f8f9d366f8db3395836da0b2176c (patch) | |
| tree | bbd204a9526f60b7f8f775b22413b09185aff882 /Documentation/admin-guide | |
| parent | 0c5e194947fc5ccc82bdd656d0efcd2d13b6e743 (diff) | |
Documentation: Document arm64 kpti control
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>
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 2238fb3c7dcf..b251494d1b66 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1983,6 +1983,12 @@ Built with CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF=y, the default is off. + 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 + kvm.ignore_msrs=[KVM] Ignore guest accesses to unhandled MSRs. Default is 0 (don't ignore, but inject #GP) |