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(parent: bd254f9) | 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)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 22 May 2019 05:38:36 +0000 (07:38 +0200)
commitd81b4ae57fe9756e43f627d67030ea56686c3c6c
treedcf04df34b3e144beaa49d5a7435c50a2cef4b35tree
parentbd254f9d1157194586d1b535387e377306149d7bcommit | diff
arm64: Save and restore OSDLR_EL1 across suspend/resume

commit 827a108e354db633698f0b4a10c1ffd2b1f8d1d0 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/arm64/mm/proc.S diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git