[PATCH v2] arm64: kpti: Use early_param for kpti= command-line option
From: Sudeep Holla <hidden>
Date: 2018-06-22 10:25:21
On 22/06/18 10:25, Will Deacon wrote:
We inspect __kpti_forced early on as part of the cpufeature enable callback which remaps the swapper page table using non-global entries. Ensure that __kpti_forced has been updated to reflect the kpti= command-line option before we start using it.
This also fixes the case where SPE driver complains about missing kpti=off even when it's present as __setup parse kpti only after boot CPU detects and marks ARM64_UNMAP_KERNEL_AT_EL0 capability. Tested-by: Sudeep Holla <redacted> -- Regards, Sudeep