Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
33 lines
1.1 KiB
Plaintext
33 lines
1.1 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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# OP-TEE Trusted Execution Environment Configuration
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config OPTEE
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tristate "OP-TEE"
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depends on HAVE_ARM_SMCCC
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depends on MMU
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depends on RPMB || !RPMB
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help
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This implements the OP-TEE Trusted Execution Environment (TEE)
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driver.
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config OPTEE_INSECURE_LOAD_IMAGE
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bool "Load OP-TEE image as firmware"
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default n
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depends on OPTEE && ARM64
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help
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This loads the BL32 image for OP-TEE as firmware when the driver is
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probed. This returns -EPROBE_DEFER until the firmware is loadable from
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the filesystem which is determined by checking the system_state until
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it is in SYSTEM_RUNNING. This also requires enabling the corresponding
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option in Trusted Firmware for Arm. The documentation there explains
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the security threat associated with enabling this as well as
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mitigations at the firmware and platform level.
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https://trustedfirmware-a.readthedocs.io/en/latest/threat_model/threat_model.html
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Additional documentation on kernel security risks are at
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Documentation/tee/op-tee.rst.
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config OPTEE_STATIC_PROTMEM_POOL
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bool
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depends on HAS_IOMEM && TEE_DMABUF_HEAPS
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default y
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