drivers/firmware: Expose psci_get_version through psci_ops structure

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Entry into recent versions of ARM Trusted Firmware will invalidate the CPU
branch predictor state in order to protect against aliasing attacks.

This patch exposes the PSCI "VERSION" function via psci_ops, so that it
can be invoked outside of the PSCI driver where necessary.

Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Will Deacon 2018-01-02 21:45:41 +00:00 • committed by Catalin Marinas

parent 0a0d111d40

commit d68e3ba530

2 changed files with 3 additions and 0 deletions

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drivers/firmware/psci.c

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1

include/linux/psci.h

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