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(parent: f273cd1) | 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 05:37:36 +0000 (07:37 +0200)
commitd8d751efec2819ec6d4fdfc04b20e4f67f0c157e
treee0ea4e5439c373d18c149dfd917759beb9357c0dtree | snapshot
parentf273cd16554a92ea746cf117a126ff5be8c54794commit | 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 | history
Domain: System / Kernel;