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(parent: da64e9d) | patch
arm64: Preserve register x18 when CPU is suspended
authorSami Tolvanen <samitolvanen@google.com>
Mon, 27 Apr 2020 16:00:12 +0000 (09:00 -0700)
committerWill Deacon <will@kernel.org>
Fri, 15 May 2020 15:35:50 +0000 (16:35 +0100)
commit6d37d81f449a103a8b43c5c972b5055b8936ef0e
tree86b92094d4b520b008f4545bf7f1e97bddaa1d68tree | snapshot
parentda64e9d1f8c3dad6898dac6edb39a68d3aa9ce93commit | diff
arm64: Preserve register x18 when CPU is suspended

Don't lose the current task's shadow stack when the CPU is suspended.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
arch/arm64/include/asm/suspend.h diff | blob | history
arch/arm64/mm/proc.S diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git