From: Jeremy Linton Date: Fri, 25 Jan 2019 18:07:00 +0000 (-0600) Subject: Documentation: Document arm64 kpti control X-Git-Tag: v5.1-rc1~93^2~26 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=de19055564c8f8f9d366f8db3395836da0b2176c;p=linux.git 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 Reviewed-by: Andre Przywara Signed-off-by: Jonathan Corbet --- 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)