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(parent: 9489a05) | 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)
commit8373fd60013f0016730eb4af44ffbe41fca4d18c
tree86b92094d4b520b008f4545bf7f1e97bddaa1d68tree | snapshot
parent9489a05f5ff93fac37f39d6dbcb69ab079aabb42commit | 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
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