tfm: Add BL2 log level configuration and disable it with TFM silent conf

Add choice for BL2 log level configuration. Silence TF-M BL2 logging when TF-M is configured to be silent. Signed-off-by: Joakim Andersson <[email protected]>
zephyrproject-rtos · Oct 26, 2023 · 96c5052 · 96c5052
1 parent baad781
commit 96c5052
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diff --git a/modules/trusted-firmware-m/CMakeLists.txt b/modules/trusted-firmware-m/CMakeLists.txt
@@ -101,6 +101,25 @@ if (CONFIG_BUILD_WITH_TFM)
     list(APPEND TFM_CMAKE_ARGS -DTFM_EXCEPTION_INFO_DUMP=OFF)
   endif()
 
+  if (CONFIG_TFM_BL2)
+    if (CONFIG_TFM_BL2_LOG_LEVEL_DEBUG)
+      set(TFM_BL2_LOG_LEVEL "DEBUG")
+    elseif (CONFIG_TFM_BL2_LOG_LEVEL_INFO)
+      set(TFM_BL2_LOG_LEVEL "INFO")
+    elseif (CONFIG_TFM_BL2_LOG_LEVEL_WARNING)
+      set(TFM_BL2_LOG_LEVEL "WARNING")
+    elseif (CONFIG_TFM_BL2_LOG_LEVEL_ERROR)
+      set(TFM_BL2_LOG_LEVEL "ERROR")
+    elseif (CONFIG_TFM_BL2_LOG_LEVEL_OFF OR CONFIG_TFM_LOG_LEVEL_SILENCE)
+      set(TFM_BL2_LOG_LEVEL "OFF")
+    endif()
+
+    if (DEFINED TFM_BL2_LOG_LEVEL)
+      # BL2 uses MCUBOOT_LOG_LEVEL configuration
+      list(APPEND TFM_CMAKE_ARGS -DMCUBOOT_LOG_LEVEL=${TFM_BL2_LOG_LEVEL})
+    endif()
+  endif()
+
   if (CONFIG_TFM_PARTITION_LOG_LEVEL_DEBUG)
     set(TFM_PARTITION_LOG_LEVEL "TFM_PARTITION_LOG_LEVEL_DEBUG")
   elseif (CONFIG_TFM_PARTITION_LOG_LEVEL_INFO)

diff --git a/modules/trusted-firmware-m/Kconfig.tfm b/modules/trusted-firmware-m/Kconfig.tfm
@@ -397,6 +397,21 @@ config ROM_START_OFFSET
 	  needs to be updated if TF-M switches to use a different header
 	  size for BL2.
 
+choice TFM_BL2_LOG_LEVEL
+	prompt "BL2 Log Level" if !TFM_LOG_LEVEL_SILENCE
+	default TFM_BL2_LOG_LEVEL_INFO
+	config TFM_BL2_LOG_LEVEL_DEBUG
+		bool "Debug"
+	config TFM_BL2_LOG_LEVEL_INFO
+		bool "Info"
+	config TFM_BL2_LOG_LEVEL_WARNING
+		bool "Warning"
+	config TFM_BL2_LOG_LEVEL_ERROR
+		bool "Error"
+	config TFM_BL2_LOG_LEVEL_OFF
+		bool "Off"
+endchoice
+
 endif # !TFM_BL2
 
 # Option to instruct flashing a merged binary consisting of BL2 (optionally),