1. 23 May, 2017 1 commit
    • Masahiro Yamada's avatar
      cert: move platform_oid.h to include/tools_share for all platforms · bb41eb7a
      Masahiro Yamada authored
      
      
      Platforms aligned with TBBR are supposed to use their own OIDs, but
      defining the same macros with different OIDs does not provide any
      value (at least technically).
      
      For easier use of TBBR, this commit allows platforms to reuse the OIDs
      obtained by ARM Ltd.  This will be useful for non-ARM vendors that
      do not need their own extension fields in their certificate files.
      
      The OIDs of ARM Ltd. have been moved to include/tools_share/tbbr_oid.h
      
      Platforms can include <tbbr_oid.h> instead of <platform_oid.h> by
      defining USE_TBBR_DEFS as 1.  USE_TBBR_DEFS is 0 by default to keep the
      backward compatibility.
      
      For clarification, I inserted a blank line between headers from the
      include/ directory (#include <...>) and ones from a local directory
      (#include "..." ).
      Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
      bb41eb7a
  2. 03 May, 2017 1 commit
  3. 31 Mar, 2016 1 commit
    • Juan Castillo's avatar
      TBB: add non-volatile counter support · 48279d52
      Juan Castillo authored
      This patch adds support for non-volatile counter authentication to
      the Authentication Module. This method consists of matching the
      counter values provided in the certificates with the ones stored
      in the platform. If the value from the certificate is lower than
      the platform, the boot process is aborted. This mechanism protects
      the system against rollback.
      
      The TBBR CoT has been updated to include this method as part of the
      authentication process. Two counters are used: one for the trusted
      world images and another for the non trusted world images.
      
      ** NEW PLATFORM APIs (mandatory when TBB is enabled) **
      
      int plat_get_nv_ctr(void *cookie, unsigned int *nv_ctr);
      
          This API returns the non-volatile counter value stored
          in the platform. The cookie in the first argument may be
          used to select the counter in case the platform provides
          more than one (i.e. TBSA compliant platforms must provide
          trusted and non-trusted counters). This cookie is specified
          in the CoT.
      
      int plat_set_nv_ctr(void *cookie, unsigned int nv_ctr);
      
          This API sets a new counter value. The cookie may be
          used to select the counter to be updated.
      
      An implementation of these new APIs for ARM platforms is also
      provided. The values are obtained from the Trusted Non-Volatile
      Counters peripheral. The cookie is used to pass the extension OID.
      This OID may be interpreted by the platform to know which counter
      must return. On Juno, The trusted and non-trusted counter values
      have been tied to 31 and 223, respectively, and cannot be modified.
      
      ** IMPORTANT **
      
      THIS PATCH BREAKS THE BUILD WHEN TRUSTED_BOARD_BOOT IS ENABLED. THE
      NEW PLATFORM APIs INTRODUCED IN THIS PATCH MUST BE IMPLEMENTED IN
      ORDER TO SUCCESSFULLY BUILD TF.
      
      Change-Id: Ic943b76b25f2a37f490eaaab6d87b4a8b3cbc89a
      48279d52
  4. 14 Dec, 2015 2 commits
    • Juan Castillo's avatar
      Replace all SCP FW (BL0, BL3-0) references · f59821d5
      Juan Castillo authored
      This patch replaces all references to the SCP Firmware (BL0, BL30,
      BL3-0, bl30) with the image terminology detailed in the TF wiki
      (https://github.com/ARM-software/arm-trusted-firmware/wiki):
      
          BL0          -->  SCP_BL1
          BL30, BL3-0  -->  SCP_BL2
          bl30         -->  scp_bl2
      
      This change affects code, documentation, build system, tools and
      platform ports that load SCP firmware. ARM plaforms have been
      updated to the new porting API.
      
      IMPORTANT: build option to specify the SCP FW image has changed:
      
          BL30 --> SCP_BL2
      
      IMPORTANT: This patch breaks compatibility for platforms that use BL2
      to load SCP firmware. Affected platforms must be updated as follows:
      
          BL30_IMAGE_ID --> SCP_BL2_IMAGE_ID
          BL30_BASE --> SCP_BL2_BASE
          bl2_plat_get_bl30_meminfo() --> bl2_plat_get_scp_bl2_meminfo()
          bl2_plat_handle_bl30() --> bl2_plat_handle_scp_bl2()
      
      Change-Id: I24c4c1a4f0e4b9f17c9e4929da815c4069549e58
      f59821d5
    • Juan Castillo's avatar
      TBB: apply TBBR naming convention to certificates and extensions · 516beb58
      Juan Castillo authored
      This patch applies the TBBR naming convention to the certificates
      and the corresponding extensions defined by the CoT:
      
          * Certificate UUID names
          * Certificate identifier names
          * OID names
      
      Changes apply to:
      
          * Generic code (variables and defines)
          * The default certificate identifiers provided in the generic
            code
          * Build system
          * ARM platforms port
          * cert_create tool internal definitions
          * fip_create and cert_create tools command line options
          * Documentation
      
      IMPORTANT: this change breaks the compatibility with platforms
      that use TBBR. The platform will need to adapt the identifiers
      and OIDs to the TBBR naming convention introduced by this patch:
      
      Certificate UUIDs:
      
          UUID_TRUSTED_BOOT_FIRMWARE_BL2_CERT --> UUID_TRUSTED_BOOT_FW_CERT
          UUID_SCP_FIRMWARE_BL30_KEY_CERT --> UUID_SCP_FW_KEY_CERT
          UUID_SCP_FIRMWARE_BL30_CERT --> UUID_SCP_FW_CONTENT_CERT
          UUID_EL3_RUNTIME_FIRMWARE_BL31_KEY_CERT --> UUID_SOC_FW_KEY_CERT
          UUID_EL3_RUNTIME_FIRMWARE_BL31_CERT --> UUID_SOC_FW_CONTENT_CERT
          UUID_SECURE_PAYLOAD_BL32_KEY_CERT --> UUID_TRUSTED_OS_FW_KEY_CERT
          UUID_SECURE_PAYLOAD_BL32_CERT --> UUID_TRUSTED_OS_FW_CONTENT_CERT
          UUID_NON_TRUSTED_FIRMWARE_BL33_KEY_CERT --> UUID_NON_TRUSTED_FW_KEY_CERT
          UUID_NON_TRUSTED_FIRMWARE_BL33_CERT --> UUID_NON_TRUSTED_FW_CONTENT_CERT
      
      Certificate identifiers:
      
          BL2_CERT_ID --> TRUSTED_BOOT_FW_CERT_ID
          BL30_KEY_CERT_ID --> SCP_FW_KEY_CERT_ID
          BL30_CERT_ID --> SCP_FW_CONTENT_CERT_ID
          BL31_KEY_CERT_ID --> SOC_FW_KEY_CERT_ID
          BL31_CERT_ID --> SOC_FW_CONTENT_CERT_ID
          BL32_KEY_CERT_ID --> TRUSTED_OS_FW_KEY_CERT_ID
          BL32_CERT_ID --> TRUSTED_OS_FW_CONTENT_CERT_ID
          BL33_KEY_CERT_ID --> NON_TRUSTED_FW_KEY_CERT_ID
          BL33_CERT_ID --> NON_TRUSTED_FW_CONTENT_CERT_ID
      
      OIDs:
      
          TZ_FW_NVCOUNTER_OID --> TRUSTED_FW_NVCOUNTER_OID
          NTZ_FW_NVCOUNTER_OID --> NON_TRUSTED_FW_NVCOUNTER_OID
          BL2_HASH_OID --> TRUSTED_BOOT_FW_HASH_OID
          TZ_WORLD_PK_OID --> TRUSTED_WORLD_PK_OID
          NTZ_WORLD_PK_OID --> NON_TRUSTED_WORLD_PK_OID
          BL30_CONTENT_CERT_PK_OID --> SCP_FW_CONTENT_CERT_PK_OID
          BL30_HASH_OID --> SCP_FW_HASH_OID
          BL31_CONTENT_CERT_PK_OID --> SOC_FW_CONTENT_CERT_PK_OID
          BL31_HASH_OID --> SOC_AP_FW_HASH_OID
          BL32_CONTENT_CERT_PK_OID --> TRUSTED_OS_FW_CONTENT_CERT_PK_OID
          BL32_HASH_OID --> TRUSTED_OS_FW_HASH_OID
          BL33_CONTENT_CERT_PK_OID --> NON_TRUSTED_FW_CONTENT_CERT_PK_OID
          BL33_HASH_OID --> NON_TRUSTED_WORLD_BOOTLOADER_HASH_OID
          BL2U_HASH_OID --> AP_FWU_CFG_HASH_OID
          SCP_BL2U_HASH_OID --> SCP_FWU_CFG_HASH_OID
          NS_BL2U_HASH_OID --> FWU_HASH_OID
      
      Change-Id: I1e047ae046299ca913911c39ac3a6e123bd41079
      516beb58
  5. 09 Dec, 2015 1 commit
    • Yatharth Kochar's avatar
      FWU: Add Generic Firmware Update framework support in BL1 · 48bfb88e
      Yatharth Kochar authored
      Firmware update(a.k.a FWU) feature is part of the TBB architecture.
      BL1 is responsible for carrying out the FWU process if platform
      specific code detects that it is needed.
      
      This patch adds support for FWU feature support in BL1 which is
      included by enabling `TRUSTED_BOARD_BOOT` compile time flag.
      
      This patch adds bl1_fwu.c which contains all the core operations
      of FWU, which are; SMC handler, image copy, authentication, execution
      and resumption. It also adds bl1.h introducing #defines for all
      BL1 SMCs.
      
      Following platform porting functions are introduced:
      
      int bl1_plat_mem_check(uintptr_t mem_base, unsigned int mem_size,
      unsigned int flags);
      	This function can be used to add platform specific memory checks
      	for the provided base/size for the given security state.
      	The weak definition will invoke `assert()` and return -ENOMEM.
      
      __dead2 void bl1_plat_fwu_done(void *cookie, void *reserved);
      	This function can be used to initiate platform specific procedure
      	to mark completion of the FWU process.
      	The weak definition waits forever calling `wfi()`.
      
      plat_bl1_common.c contains weak definitions for above functions.
      
      FWU process starts when platform detects it and return the image_id
      other than BL2_IMAGE_ID by using `bl1_plat_get_next_image_id()` in
      `bl1_main()`.
      
      NOTE: User MUST provide platform specific real definition for
      bl1_plat_mem_check() in order to use it for Firmware update.
      
      Change-Id: Ice189a0885d9722d9e1dd03f76cac1aceb0e25ed
      48bfb88e
  6. 25 Jun, 2015 1 commit
    • Juan Castillo's avatar
      TBB: add TBBR Chain of Trust · dff93c86
      Juan Castillo authored
      This patch adds a CoT based on the Trusted Board Boot Requirements
      document*. The CoT consists of an array of authentication image
      descriptors indexed by the image identifiers.
      
      A new header file with TBBR image identifiers has been added.
      Platforms that use the TBBR (i.e. ARM platforms) may reuse these
      definitions as part of their platform porting.
      
      PLATFORM PORT - IMPORTANT:
      
      Default image IDs have been removed from the platform common
      definitions file (common_def.h). As a consequence, platforms that
      used those common definitons must now either include the IDs
      provided by the TBBR header file or define their own IDs.
      
      *The NVCounter authentication method has not been implemented yet.
      
      Change-Id: I7c4d591863ef53bb0cd4ce6c52a60b06fa0102d5
      dff93c86