linux/drivers/tee/optee/Kconfig

# SPDX-License-Identifier: GPL-2.0-only
# OP-TEE Trusted Execution Environment Configuration
config OPTEE
	tristate "OP-TEE"
	depends on HAVE_ARM_SMCCC
	depends on MMU
	help
	  This implements the OP-TEE Trusted Execution Environment (TEE)
	  driver.
treewide: Add SPDX license identifier - Makefile/Kconfig Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2019-05-19 20:07:45 +08:00			`# SPDX-License-Identifier: GPL-2.0-only`
tee: add OP-TEE driver Adds a OP-TEE driver which also can be compiled as a loadable module. * Targets ARM and ARM64 * Supports using reserved memory from OP-TEE as shared memory * Probes OP-TEE version using SMCs * Accepts requests on privileged and unprivileged device * Uses OPTEE message protocol version 2 to communicate with secure world Acked-by: Andreas Dannenberg <dannenberg@ti.com> Tested-by: Jerome Forissier <jerome.forissier@linaro.org> (HiKey) Tested-by: Volodymyr Babchuk <vlad.babchuk@gmail.com> (RCAR H3) Tested-by: Scott Branden <scott.branden@broadcom.com> Reviewed-by: Javier González <javier@javigon.com> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> 2015-04-14 20:33:20 +08:00			`# OP-TEE Trusted Execution Environment Configuration`
			`config OPTEE`
			`tristate "OP-TEE"`
			`depends on HAVE_ARM_SMCCC`
tee: optee: Fix compilation issue with nommu The optee driver uses specific page table types to verify if a memory region is normal. These types are not defined in nommu systems. Trying to compile the driver in these systems results in a build error: linux/drivers/tee/optee/call.c: In function ‘is_normal_memory’: linux/drivers/tee/optee/call.c:533:26: error: ‘L_PTE_MT_MASK’ undeclared (first use in this function); did you mean ‘PREEMPT_MASK’? return (pgprot_val(p) & L_PTE_MT_MASK) == L_PTE_MT_WRITEALLOC; ^~~~~~~~~~~~~ PREEMPT_MASK linux/drivers/tee/optee/call.c:533:26: note: each undeclared identifier is reported only once for each function it appears in linux/drivers/tee/optee/call.c:533:44: error: ‘L_PTE_MT_WRITEALLOC’ undeclared (first use in this function) return (pgprot_val(p) & L_PTE_MT_MASK) == L_PTE_MT_WRITEALLOC; ^~~~~~~~~~~~~~~~~~~ Make the optee driver depend on MMU to fix the compilation issue. Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> [jw: update commit title] Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> 2020-01-10 20:28:07 +08:00			`depends on MMU`
tee: add OP-TEE driver Adds a OP-TEE driver which also can be compiled as a loadable module. * Targets ARM and ARM64 * Supports using reserved memory from OP-TEE as shared memory * Probes OP-TEE version using SMCs * Accepts requests on privileged and unprivileged device * Uses OPTEE message protocol version 2 to communicate with secure world Acked-by: Andreas Dannenberg <dannenberg@ti.com> Tested-by: Jerome Forissier <jerome.forissier@linaro.org> (HiKey) Tested-by: Volodymyr Babchuk <vlad.babchuk@gmail.com> (RCAR H3) Tested-by: Scott Branden <scott.branden@broadcom.com> Reviewed-by: Javier González <javier@javigon.com> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org> 2015-04-14 20:33:20 +08:00			`help`
			`This implements the OP-TEE Trusted Execution Environment (TEE)`
			`driver.`