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| author | Jeremy Linton <jeremy.linton@arm.com> | 2019-01-25 12:07:00 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-29 16:43:19 +0100 |
| commit | a243850af3fb3e748694073fa6679edfbbdc3f3a (patch) | |
| tree | c9fc6efb2e0fee28bd3cb0f2c696e911ebcbec0e /Documentation | |
| parent | 6491a9dd3cf9d92f058d96698d22bf6eb87b9da8 (diff) | |
| download | linux-stable-a243850af3fb3e748694073fa6679edfbbdc3f3a.tar.gz linux-stable-a243850af3fb3e748694073fa6679edfbbdc3f3a.tar.bz2 linux-stable-a243850af3fb3e748694073fa6679edfbbdc3f3a.zip | |
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
| -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 e6b6ec974eeb..8bf0c0532046 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1946,6 +1946,12 @@ 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) |