linux_dsm_epyc7002/arch/arm64/include
Marc Zyngier 647d0519b5 arm64: ssbd: Restore mitigation status on CPU resume
On a system where firmware can dynamically change the state of the
mitigation, the CPU will always come up with the mitigation enabled,
including when coming back from suspend.

If the user has requested "no mitigation" via a command line option,
let's enforce it by calling into the firmware again to disable it.

Similarily, for a resume from hibernate, the mitigation could have
been disabled by the boot kernel. Let's ensure that it is set
back on in that case.

Acked-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-05-31 17:35:19 +01:00
..
asm arm64: ssbd: Restore mitigation status on CPU resume 2018-05-31 17:35:19 +01:00
uapi/asm arm/arm64: KVM: Add PSCI version selection API 2018-04-20 16:32:23 +01:00