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arch: arm: improve help text for ARM_SECURE_FIRMWARE

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This commit improves the help text description for K-config
option: ARM_SECURE_FIRMWARE.

Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
This commit is contained in:
Ioannis Glaropoulos 2018-05-22 12:00:16 +02:00 • committed by Carles Cufí
commit 158ea44ed3
1 changed files with 5 additions and 2 deletions
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7
arch/arm/core/Kconfig
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@ -62,10 +62,13 @@ config ARM_SECURE_FIRMWARE
bool bool
default n default n
help help
This option indicates that we are building a Zephyr image that
is intended to execute in Secure state. The option is only
applicable to ARMv8-M MCUs that implement the Security Extension.
This option enables Zephyr to include code that executes in This option enables Zephyr to include code that executes in
Secure state, as well as to exclude code that is designed to Secure state, as well as to exclude code that is designed to
execute only in Non-secure state. The option is only applicable execute only in Non-secure state.
to ARMv8-M MCUs that implement the Security Extension.
Code executing in Secure state has access to both the Secure Code executing in Secure state has access to both the Secure
and Non-Secure resources of the Cortex-M MCU. and Non-Secure resources of the Cortex-M MCU.