# SPDX-License-Identifier: GPL-2.0-only
config HAVE_ARM_SMCCC
	bool
	help
	  Include support for the Secure Monitor Call (SMC) and Hypervisor
	  Call (HVC) instructions on Armv7 and above architectures.

config HAVE_ARM_SMCCC_DISCOVERY
	bool
	depends on ARM_PSCI_FW
	default y
	help
	 SMCCC v1.0 lacked discoverability and hence PSCI v1.0 was updated
	 to add SMCCC discovery mechanism though the PSCI firmware
	 implementation of PSCI_FEATURES(SMCCC_VERSION) which returns
	 success on firmware compliant to SMCCC v1.1 and above.

config ARM_SMCCC_SOC_ID
	bool "SoC bus device for the ARM SMCCC SOC_ID"
	depends on HAVE_ARM_SMCCC_DISCOVERY
	default y
	select SOC_BUS
	help
	  Include support for the SoC bus on the ARM SMCCC firmware based
	  platforms providing some sysfs information about the SoC variant.

config ARM_LFA
	tristate "Arm Live Firmware activation support"
	depends on HAVE_ARM_SMCCC_DISCOVERY && ARM64
	default y
	help
	  Include support for triggering a Live Firmware Activation (LFA),
	  which allows to upgrade certain firmware components without a reboot.
	  This is described in the Arm DEN0147 specification, and relies on
	  a firmware agent running in EL3.
