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arm64: mm: avoid x18 in idmap_kpti_install_ng_mappings
authorSami Tolvanen <samitolvanen@google.com>
Fri, 6 Dec 2019 22:13:37 +0000 (14:13 -0800)
committerWill Deacon <will@kernel.org>
Thu, 16 Jan 2020 17:32:56 +0000 (17:32 +0000)
commite3ec6582d1cf1c4922200f7cddd96d5ee55235d2
tree2bad509c585e7f9136e5d55c6f9166e1b92d48b3tree | snapshot
parentc54f90c2627cc316d365e3073614731e17dbc631commit | diff
arm64: mm: avoid x18 in idmap_kpti_install_ng_mappings

idmap_kpti_install_ng_mappings uses x18 as a temporary register, which
will result in a conflict when x18 is reserved. Use x16 and x17 instead
where needed.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
arch/arm64/mm/proc.S diff | blob | history
Domain: System / Kernel;