core: arm: sm: upgrade to PSCI 1.1

Add support for new functions, introduced in PSCI v1.1 spec [1] (all
are optional):
* SYSTEM_RESET2 - extends existing SYSTEM_RESET. It provides

core: arm: sm: upgrade to PSCI 1.1

Add support for new functions, introduced in PSCI v1.1 spec [1] (all
are optional):
* SYSTEM_RESET2 - extends existing SYSTEM_RESET. It provides
architectural reset definitions and vendor-specific
resets.
* MEM_PROTECT - provides protection against cold reboot attacks,
by ensuring that memory is overwritten before it is
handed over to an operating system loader.
* MEM_PROTECT_CHECK_RANGE - used to check whether a memory range is
protected by MEM_PROTECT.

[1] https://developer.arm.com/documentation/den0022/latest/

Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Igor Opaniuk <igor.opaniuk@foundries.io>

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core: remove generic_ from generic_boot

Now that the CFG_GENERIC_BOOT configuration flag has been removed also
remove "generic_" prefix from and in the related files.

Acked-by: Etienne Carriere <et

core: remove generic_ from generic_boot

Now that the CFG_GENERIC_BOOT configuration flag has been removed also
remove "generic_" prefix from and in the related files.

Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Acked-by: Jerome Forissier <jerome@forissier.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

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Add SPDX license identifiers

Adds one SPDX-License-Identifier line [1] to each source files that
contains license text.

Generated by [2]:
spdxify.py --add-spdx optee_os/

The scancode tool [3] wa

Add SPDX license identifiers

Adds one SPDX-License-Identifier line [1] to each source files that
contains license text.

Generated by [2]:
spdxify.py --add-spdx optee_os/

The scancode tool [3] was used to double check the license matching
code in the Python script. All the licenses detected by scancode are
either detected by spdxify.py, or have no SPDX identifier, or are false
matches.

Link: [1] https://spdx.org/licenses/
Link: [2] https://github.com/jforissier/misc/blob/f7b56c8/spdxify.py
Link: [3] https://github.com/nexB/scancode-toolkit
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Joakim Bech <joakim.bech@linaro.org>

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core: arm: psci: pass nsec ctx to system_suspend

In the commit 732fc43(core: arm: psci: pass nsec ctx to psci), we have
done the job, but we forgot to follow it in the later commit 1d40eb8
(core: ar

core: arm: psci: pass nsec ctx to system_suspend

In the commit 732fc43(core: arm: psci: pass nsec ctx to psci), we have
done the job, but we forgot to follow it in the later commit 1d40eb8
(core: arm: sm: add PSCI system suspend), fix it in this patch.

Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Zeng Tao <prime.zeng@hisilicon.com>

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core: arm: psci: pass nsec ctx to psci

Pass non-secure context to psci functions. When cpu/system suspends,
cpu may loose power, so when back to linux from tee, tee
needs to return to a linux resume

core: arm: psci: pass nsec ctx to psci

Pass non-secure context to psci functions. When cpu/system suspends,
cpu may loose power, so when back to linux from tee, tee
needs to return to a linux resume point, not the usual return address
after "smc" instruction. So we need to modify the mon_lr
value in non-secure context.

Psci runs in monitor mode, sm_get_nsec_ctx can not be used,
so pass the non-secure context pointer to the psci suspend function.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: arm: sm: add PSCI system suspend

Add __weak property for the function, developers
could have their own implementation.

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Acked-by: Jerome Fori

core: arm: sm: add PSCI system suspend

Add __weak property for the function, developers
could have their own implementation.

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Acked-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: arm: sm: fix PSCI reset

PSCI reset entry must call psci_system_reset(), not
psci_system_off().

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.or

core: arm: sm: fix PSCI reset

PSCI reset entry must call psci_system_reset(), not
psci_system_off().

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
[jf: Rebase, reword commit message]
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>

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core: arm: add PSCI support

Introduce basic PSCI support.
When CFG_PSCI_ARM32 is defined, PSCI functions will be enabled.
Add __weak property for the PSCI functions, developers could
have their own

core: arm: add PSCI support

Introduce basic PSCI support.
When CFG_PSCI_ARM32 is defined, PSCI functions will be enabled.
Add __weak property for the PSCI functions, developers could
have their own implementation.

PSCI is handled in monitor mode, and when finished, directly returns
to nsec world.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
[s/psci/PSCI/ in commit log. Rebase on top of master.]
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>

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