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(parent: cde5dec) | patch
arm64: Disable SCS for hypervisor code
authorSami Tolvanen <samitolvanen@google.com>
Mon, 27 Apr 2020 16:00:15 +0000 (09:00 -0700)
committerWill Deacon <will@kernel.org>
Fri, 15 May 2020 15:35:50 +0000 (16:35 +0100)
commit9654736891c3ac6a60b52ce70d33cf57cf95bff7
tree19d185903f3721fc76a47f31ad6a1379184a111ftree | snapshot
parentcde5dec89e5dee5a6de12cd99fdb24651ee03146commit | diff
arm64: Disable SCS for hypervisor code

Disable SCS for code that runs at a different exception level by
adding __noscs to __hyp_text.

Suggested-by: James Morse <james.morse@arm.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
arch/arm64/include/asm/kvm_hyp.h diff | blob | history
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