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(parent: df89556) | patch
arm64: Save and restore OSDLR_EL1 across suspend/resume
authorJean-Philippe Brucker <jean-philippe.brucker@arm.com>
Mon, 8 Apr 2019 17:17:19 +0000 (18:17 +0100)
committerWill Deacon <will.deacon@arm.com>
Tue, 9 Apr 2019 11:39:13 +0000 (12:39 +0100)
commita2bf163e924dfffd7e244360d6b77a8779b4d4ac
tree2931dfa38b16416f454d9091cbd8c4ff0d9b081etree | snapshot
parentdf895561cde10e0774f2d8ab63d45cdf6320f681commit | diff
arm64: Save and restore OSDLR_EL1 across suspend/resume

When the CPU comes out of suspend, the firmware may have modified the OS
Double Lock Register. Save it in an unused slot of cpu_suspend_ctx, and
restore it on resume.

Cc: <stable@vger.kernel.org>
Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
arch/arm64/mm/proc.S diff | blob | history
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