As it's seen in unmap_kernel_at_el0 (both the function definition
and its usage in arm64_features[]) from arch/arm64/kernel/cpufeature.c
the kernel reports this string:
CPU features: detected: Kernel page table isolation (KPTI)
or (before commit e0f6429dc1c0 ("arm64: cpufeature: Remove redundant "feature"
in reports")):
CPU features: detected feature: Kernel page table isolation (KPTI)
if KPTI is enabled on the system.
So on let's adjust check_variant3_linux() to make it grep these
strings if executed on an aarch64 platform.
Tested on a Cavium ThunderX2 machine.
Signed-off-by: Stanislav Kholmanskikh <stanislav.kholmanskikh@oracle.com>
Stanislav Kholmanskikh