Marc Zyngier a43ae4dfe5 arm64: Add 'ssbd' command-line option
On a system where the firmware implements ARCH_WORKAROUND_2,
it may be useful to either permanently enable or disable the
workaround for cases where the user decides that they'd rather
not get a trap overhead, and keep the mitigation permanently
on or off instead of switching it on exception entry/exit.

In any case, default to the mitigation being enabled.

Reviewed-by: Julien Grall <julien.grall@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-05-31 17:34:49 +01:00
..
2018-05-23 11:46:42 +01:00
2018-05-31 17:34:38 +01:00
2017-04-04 17:03:32 +01:00
2018-04-24 19:07:55 +01:00