Thread (4 messages) 4 messages, 3 authors, 2018-06-20
STALE2954d

[PATCH] arm64: kpti: Use early_param for kpti= command-line option

From: catalin.marinas@arm.com (Catalin Marinas)
Date: 2018-06-20 15:40:32

On Wed, Jun 20, 2018 at 04:23:47PM +0100, 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.

Reported-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Will Deacon <redacted>
Does it need a fixes tag?

Fixes: ea1e3de85e94 ("arm64: entry: Add fake CPU feature for unmapping the kernel at EL0")

-- 
Catalin
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