diff --git a/Makefile b/Makefile index becbf03..65ebb93 100644 --- a/Makefile +++ b/Makefile @@ -659,6 +659,10 @@ SDEI_SUPPORT is enabled") endif +ifeq ($(COT_DESC_IN_DTB),1) + $(info CoT in device tree is an experimental feature) +endif + # If pointer authentication is used in the firmware, make sure that all the # registers associated to it are also saved and restored. # Not doing it would leak the value of the keys used by EL3 to EL1 and S-EL1. @@ -903,6 +907,7 @@ $(eval $(call assert_boolean,ENCRYPT_BL32)) $(eval $(call assert_boolean,ERRATA_SPECULATIVE_AT)) $(eval $(call assert_boolean,RAS_TRAP_LOWER_EL_ERR_ACCESS)) +$(eval $(call assert_boolean,COT_DESC_IN_DTB)) $(eval $(call assert_numeric,ARM_ARCH_MAJOR)) $(eval $(call assert_numeric,ARM_ARCH_MINOR)) @@ -983,6 +988,7 @@ $(eval $(call add_define,USE_SPINLOCK_CAS)) $(eval $(call add_define,ERRATA_SPECULATIVE_AT)) $(eval $(call add_define,RAS_TRAP_LOWER_EL_ERR_ACCESS)) +$(eval $(call add_define,COT_DESC_IN_DTB)) ifeq (${SANITIZE_UB},trap) $(eval $(call add_define,MONITOR_TRAPS)) diff --git a/docs/getting_started/build-options.rst b/docs/getting_started/build-options.rst index 81903e1..bfc50df 100644 --- a/docs/getting_started/build-options.rst +++ b/docs/getting_started/build-options.rst @@ -648,6 +648,13 @@ configuration device tree, instead of static structure in the code base. This is currently an experimental feature. +- ``COT_DESC_IN_DTB``: This flag determines whether to create COT descriptors + at runtime using fconf. If this flag is enabled, COT descriptors are + statically captured in tb_fw_config file in the form of device tree nodes + and properties. Currently, COT descriptors used by BL2 are moved to the + device tree and COT descriptors used by BL1 are retained in the code + base statically. This is currently an experimental feature. + - ``SDEI_IN_FCONF``: This flag determines whether to configure SDEI setup in runtime using firmware configuration framework. The platform specific SDEI shared and private events configuration is retrieved from device tree rather diff --git a/make_helpers/defaults.mk b/make_helpers/defaults.mk index 6db228f..9a6fd58 100644 --- a/make_helpers/defaults.mk +++ b/make_helpers/defaults.mk @@ -305,3 +305,6 @@ # Trap RAS error record access from lower EL RAS_TRAP_LOWER_EL_ERR_ACCESS := 0 + +# Build option to create cot descriptors using fconf +COT_DESC_IN_DTB := 0