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| author | Will Deacon <will.deacon@arm.com> | 2018-06-22 10:25:25 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@google.com> | 2020-11-15 15:49:07 +0100 |
| commit | 5a6ac2fc8c2456d424b30febac4330eecdc1d65c (patch) | |
| tree | 34bd0fcfcc0684c3691c6eac01065b32a2ee85d4 /arch/arm64/include/asm/stacktrace.h | |
| parent | 2d8cfe57bb054ab8e21453355607030a910adc02 (diff) | |
UPSTREAM: arm64: kpti: Use early_param for kpti= command-line option
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.
Fixes: ea1e3de85e94 ("arm64: entry: Add fake CPU feature for unmapping the kernel at EL0")
Cc: <stable@vger.kernel.org> # 4.16.x-
Reported-by: Wei Xu <xuwei5@hisilicon.com>
Tested-by: Sudeep Holla <sudeep.holla@arm.com>
Tested-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit b5b7dd647f2d21b93f734ce890671cd908e69b0a)
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I3e60345e179a88bd125442413f9e10d6930a2ff2
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat (limited to 'arch/arm64/include/asm/stacktrace.h')
0 files changed, 0 insertions, 0 deletions