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Diffstat (limited to 'arch/arm64/Kconfig')
| -rw-r--r-- | arch/arm64/Kconfig | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index b1b4476ddb83..9cee2008ea9e 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1484,6 +1484,22 @@ config ARM64_PTR_AUTH endmenu +menu "ARMv8.5 architectural features" + +config ARM64_E0PD + bool "Enable support for E0PD" + default y + help + E0PD (part of the ARMv8.5 extensions) allows us to ensure + that EL0 accesses made via TTBR1 always fault in constant time, + providing similar benefits to KASLR as those provided by KPTI, but + with lower overhead and without disrupting legitimate access to + kernel memory such as SPE. + + This option enables E0PD for TTBR1 where available. + +endmenu + config ARM64_SVE bool "ARM Scalable Vector Extension support" default y |