FVP: Enable capability to disable auth via dynamic config
This patch adds capability to FVP to disable authentication dynamically
via the `disable_auth` property in TB_FW_CONFIG. Both BL1 and BL2 parses
the TB_FW_CONFIG for the `disable_auth` property and invokes the
`load_dyn_disable_auth()` API to disable authentication if the
property is set to 1. The DYN_DISABLE_AUTH is enabled by default for
FVP as it is a development platform. Note that the TB_FW_CONFIG has to
be authenticated by BL1 irrespective of these settings.
The arm_bl2_dyn_cfg_init() is now earlier in bl2_plat_preload_setup()
rather than in bl2_platform_setup() as we need to get the value of
`disable_auth` property prior to authentication of any image by BL2.
Change-Id: I734acd59572849793e5020ec44c6ac51f654a4d1
Signed-off-by: Soby Mathew <soby.mathew@arm.com>
diff --git a/include/plat/arm/common/arm_dyn_cfg_helpers.h b/include/plat/arm/common/arm_dyn_cfg_helpers.h
index 4a0f639..826924d 100644
--- a/include/plat/arm/common/arm_dyn_cfg_helpers.h
+++ b/include/plat/arm/common/arm_dyn_cfg_helpers.h
@@ -12,5 +12,6 @@
int arm_dyn_get_hwconfig_info(void *dtb, int node,
uint64_t *hw_config_addr, uint32_t *hw_config_size);
int arm_dyn_tb_fw_cfg_init(void *dtb, int *node);
+int arm_dyn_get_disable_auth(void *dtb, int node, uint32_t *disable_auth);
#endif /* __ARM_DYN_CFG_HELPERS_H__ */