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authorSandrine Bailleux <sandrine.bailleux@arm.com>2020-02-11 16:15:45 +0000
committerTrustedFirmware Code Review <review@review.trustedfirmware.org>2020-02-11 16:15:45 +0000
commit21c4f56fa7335fbfd3aeb1175b38b84ef9c798ec (patch)
treeaa6c50e7b657592f39dc2c4286095575eda0a5c6
parent63aa4094fb08d262546afa51d33611a8be0bc4d2 (diff)
parent97399821256653115c9d6b5d3233934aa7689c0c (diff)
downloadtrusted-firmware-a-21c4f56fa7335fbfd3aeb1175b38b84ef9c798ec.tar.gz
Merge changes from topic "lm/fconf" into integration
* changes: arm-io: Panic in case of io setup failure MISRA fix: Use boolean essential type fconf: Add documentation fconf: Move platform io policies into fconf fconf: Add mbedtls shared heap as property fconf: Add TBBR disable_authentication property fconf: Add dynamic config DTBs info as property fconf: Populate properties from dtb during bl2 setup fconf: Load config dtb from bl1 fconf: initial commit
-rw-r--r--Makefile2
-rw-r--r--bl2/bl2.ld.S12
-rw-r--r--common/bl_common.c2
-rw-r--r--docs/components/fconf.rst85
-rw-r--r--docs/components/index.rst1
-rw-r--r--docs/getting_started/build-options.rst5
-rw-r--r--docs/global_substitutions.txt2
-rw-r--r--docs/glossary.rst6
-rw-r--r--docs/resources/diagrams/plantuml/fconf_bl1_load_config.puml52
-rw-r--r--docs/resources/diagrams/plantuml/fconf_bl2_populate.puml41
-rw-r--r--drivers/auth/auth_mod.c8
-rw-r--r--include/drivers/io/io_storage.h4
-rw-r--r--include/lib/fconf/fconf.h61
-rw-r--r--include/lib/fconf/fconf_dyn_cfg_getter.h24
-rw-r--r--include/lib/fconf/fconf_tbbr_getter.h27
-rw-r--r--include/plat/arm/common/arm_dyn_cfg_helpers.h7
-rw-r--r--include/plat/arm/common/arm_fconf_getter.h24
-rw-r--r--include/plat/arm/common/arm_fconf_io_storage.h19
-rw-r--r--include/plat/arm/common/plat_arm.h9
-rw-r--r--include/tools_share/uuid.h7
-rw-r--r--lib/fconf/fconf.c85
-rw-r--r--lib/fconf/fconf.mk12
-rw-r--r--lib/fconf/fconf_dyn_cfg_getter.c95
-rw-r--r--lib/fconf/fconf_tbbr_getter.c75
-rw-r--r--make_helpers/defaults.mk3
-rw-r--r--plat/arm/board/a5ds/fdts/a5ds_fw_config.dts35
-rw-r--r--plat/arm/board/a5ds/fdts/a5ds_tb_fw_config.dts18
-rw-r--r--plat/arm/board/a5ds/platform.mk9
-rw-r--r--plat/arm/board/fvp/fdts/fvp_fw_config.dts96
-rw-r--r--plat/arm/board/fvp/fvp_io_storage.c18
-rw-r--r--plat/arm/board/fvp/jmptbl.i2
-rw-r--r--plat/arm/board/fvp/platform.mk9
-rw-r--r--plat/arm/board/fvp_ve/fdts/fvp_ve_fw_config.dts35
-rw-r--r--plat/arm/board/fvp_ve/fdts/fvp_ve_tb_fw_config.dts18
-rw-r--r--plat/arm/board/fvp_ve/platform.mk9
-rw-r--r--plat/arm/board/juno/fdts/juno_fw_config.dts (renamed from plat/arm/board/fvp/fdts/fvp_tb_fw_config.dts)33
-rw-r--r--plat/arm/board/juno/fdts/juno_tb_fw_config.dts25
-rw-r--r--plat/arm/board/juno/jmptbl.i2
-rw-r--r--plat/arm/board/juno/juno_bl1_setup.c12
-rw-r--r--plat/arm/board/juno/platform.mk4
-rw-r--r--plat/arm/common/arm_bl1_setup.c17
-rw-r--r--plat/arm/common/arm_bl2_setup.c9
-rw-r--r--plat/arm/common/arm_common.mk16
-rw-r--r--plat/arm/common/arm_dyn_cfg.c143
-rw-r--r--plat/arm/common/arm_dyn_cfg_helpers.c163
-rw-r--r--plat/arm/common/arm_fconf_io_storage.c143
-rw-r--r--plat/arm/common/arm_io_storage.c35
-rw-r--r--plat/arm/common/fconf/arm_fconf_io.c143
48 files changed, 1232 insertions, 430 deletions
diff --git a/Makefile b/Makefile
index 0d8ddd8e1..7e416784b 100644
--- a/Makefile
+++ b/Makefile
@@ -786,6 +786,7 @@ $(eval $(call assert_boolean,SPM_MM))
$(eval $(call assert_boolean,TRUSTED_BOARD_BOOT))
$(eval $(call assert_boolean,USE_COHERENT_MEM))
$(eval $(call assert_boolean,USE_DEBUGFS))
+$(eval $(call assert_boolean,USE_FCONF_BASED_IO))
$(eval $(call assert_boolean,USE_ROMLIB))
$(eval $(call assert_boolean,USE_TBBR_DEFS))
$(eval $(call assert_boolean,WARMBOOT_ENABLE_DCACHE_EARLY))
@@ -854,6 +855,7 @@ $(eval $(call add_define,SPM_MM))
$(eval $(call add_define,TRUSTED_BOARD_BOOT))
$(eval $(call add_define,USE_COHERENT_MEM))
$(eval $(call add_define,USE_DEBUGFS))
+$(eval $(call add_define,USE_FCONF_BASED_IO))
$(eval $(call add_define,USE_ROMLIB))
$(eval $(call add_define,USE_TBBR_DEFS))
$(eval $(call add_define,WARMBOOT_ENABLE_DCACHE_EARLY))
diff --git a/bl2/bl2.ld.S b/bl2/bl2.ld.S
index 6230562ed..c1338e22d 100644
--- a/bl2/bl2.ld.S
+++ b/bl2/bl2.ld.S
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -46,6 +46,11 @@ SECTIONS
__RODATA_START__ = .;
*(SORT_BY_ALIGNMENT(.rodata*))
+ . = ALIGN(8);
+ __FCONF_POPULATOR_START__ = .;
+ KEEP(*(.fconf_populator))
+ __FCONF_POPULATOR_END__ = .;
+
/* Ensure 8-byte alignment for descriptors and ensure inclusion */
. = ALIGN(8);
__PARSER_LIB_DESCS_START__ = .;
@@ -62,6 +67,11 @@ SECTIONS
*(SORT_BY_ALIGNMENT(.text*))
*(SORT_BY_ALIGNMENT(.rodata*))
+ . = ALIGN(8);
+ __FCONF_POPULATOR_START__ = .;
+ KEEP(*(.fconf_populator))
+ __FCONF_POPULATOR_END__ = .;
+
/* Ensure 8-byte alignment for descriptors and ensure inclusion */
. = ALIGN(8);
__PARSER_LIB_DESCS_START__ = .;
diff --git a/common/bl_common.c b/common/bl_common.c
index b74225b13..2fcb5385d 100644
--- a/common/bl_common.c
+++ b/common/bl_common.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
diff --git a/docs/components/fconf.rst b/docs/components/fconf.rst
new file mode 100644
index 000000000..cec3cebe4
--- /dev/null
+++ b/docs/components/fconf.rst
@@ -0,0 +1,85 @@
+Firmware Configuration Framework
+================================
+
+This document provides an overview of the |FCONF| framework.
+
+Introduction
+~~~~~~~~~~~~
+
+The Firmware CONfiguration Framework (|FCONF|) is an abstraction layer for
+platform specific data, allowing a "property" to be queried and a value
+retrieved without the requesting entity knowing what backing store is being used
+to hold the data.
+
+It is used to bridge new and old ways of providing platform-specific data.
+Today, information like the Chain of Trust is held within several, nested
+platform-defined tables. In the future, it may be provided as part of a device
+blob, along with the rest of the information about images to load.
+Introducing this abstraction layer will make migration easier and will preserve
+functionality for platforms that cannot / don't want to use device tree.
+
+Accessing properties
+~~~~~~~~~~~~~~~~~~~~
+
+Properties defined in the |FCONF| are grouped around namespaces and
+sub-namespaces: a.b.property.
+Examples namespace can be:
+
+- (|TBBR|) Chain of Trust data: tbbr.cot.trusted_boot_fw_cert
+- (|TBBR|) dynamic configuration info: tbbr.dyn_config.disable_auth
+- Arm io policies: arm.io_policies.bl2_image
+
+Properties can be accessed with the ``FCONF_GET_PROPERTY(a,b,property)`` macro.
+
+Defining properties
+~~~~~~~~~~~~~~~~~~~
+
+Properties composing the |FCONF| have to be stored in C structures. If another
+backing store is wanted to be used, the platform has to provide a ``populate()``
+function to fill the corresponding C structure.
+
+The ``populate()`` function must be registered to the |FCONF| framework with
+the ``FCONF_REGISTER_POPULATOR()`` macro. This ensures that the function would
+be called inside the generic ``fconf_populate()`` function during
+initialization.
+
+::
+
+ int fconf_populate_tbbr_dyn_config(uintptr_t config)
+ {
+ /* read dtb and fill tbbr_dyn_config struct */
+ }
+
+ FCONF_REGISTER_POPULATOR(fconf_populate_tbbr_dyn_config);
+
+Then, a wrapper has to be provided to match the ``FCONF_GET_PROPERTY()`` macro:
+
+::
+
+ /* generic getter */
+ #define FCONF_GET_PROPERTY(a,b,property) a##__##b##_getter(property)
+
+ /* my specific getter */
+ #define tbbr__dyn_config_getter(id) tbbr_dyn_config.id
+
+This second level wrapper can be used to remap the ``FCONF_GET_PROPERTY()`` to
+anything appropriate: structure, array, function, etc..
+
+Loading the property device tree
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The ``fconf_load_config()`` must be called to load the device tree containing
+the properties' values. This must be done after the io layer is initialized, as
+the |DTB| is stored on an external device (FIP).
+
+.. uml:: ../resources/diagrams/plantuml/fconf_bl1_load_config.puml
+
+Populating the properties
+~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Once a valid device tree is available, the ``fconf_populate(config)`` function
+can be used to fill the C data structure with the data from the config |DTB|.
+This function will call all the ``populate()`` callbacks which have been
+registered with ``FCONF_REGISTER_POPULATOR()``.
+
+.. uml:: ../resources/diagrams/plantuml/fconf_bl2_populate.puml
diff --git a/docs/components/index.rst b/docs/components/index.rst
index f1904c004..6a6b1b0d5 100644
--- a/docs/components/index.rst
+++ b/docs/components/index.rst
@@ -9,6 +9,7 @@ Components
spd/index
arm-sip-service
exception-handling
+ fconf
firmware-update
platform-interrupt-controller-API
ras
diff --git a/docs/getting_started/build-options.rst b/docs/getting_started/build-options.rst
index 031836a81..8854a7989 100644
--- a/docs/getting_started/build-options.rst
+++ b/docs/getting_started/build-options.rst
@@ -578,6 +578,11 @@ Common build options
exposing a virtual filesystem interface through BL31 as a SiP SMC function.
Default is 0.
+- ``USE_FCONF_BASED_IO``: This flag determines whether to use IO based on the
+ firmware configuration framework. This allows moving the io_policies into a
+ configuration device tree, instead of static structure in the code base.
+
+
- ``USE_ROMLIB``: This flag determines whether library at ROM will be used.
This feature creates a library of functions to be placed in ROM and thus
reduces SRAM usage. Refer to :ref:`Library at ROM` for further details. Default
diff --git a/docs/global_substitutions.txt b/docs/global_substitutions.txt
index 491b160e6..4dda1dcd4 100644
--- a/docs/global_substitutions.txt
+++ b/docs/global_substitutions.txt
@@ -6,11 +6,13 @@
.. |COT| replace:: :term:`COT`
.. |CSS| replace:: :term:`CSS`
.. |CVE| replace:: :term:`CVE`
+.. |DTB| replace:: :term:`DTB`
.. |DS-5| replace:: :term:`DS-5`
.. |DSU| replace:: :term:`DSU`
.. |DT| replace:: :term:`DT`
.. |EL| replace:: :term:`EL`
.. |EHF| replace:: :term:`EHF`
+.. |FCONF| replace:: :term:`FCONF`
.. |FDT| replace:: :term:`FDT`
.. |FIP| replace:: :term:`FIP`
.. |FVP| replace:: :term:`FVP`
diff --git a/docs/glossary.rst b/docs/glossary.rst
index 2f19df59c..3da30b02a 100644
--- a/docs/glossary.rst
+++ b/docs/glossary.rst
@@ -42,12 +42,18 @@ You can find additional definitions in the `Arm Glossary`_.
DT
Device Tree
+ DTB
+ Device Tree Blob
+
EL
Exception Level
EHF
Exception Handling Framework
+ FCONF
+ Firmware Configuration Framework
+
FDT
Flattened Device Tree
diff --git a/docs/resources/diagrams/plantuml/fconf_bl1_load_config.puml b/docs/resources/diagrams/plantuml/fconf_bl1_load_config.puml
new file mode 100644
index 000000000..c36e54423
--- /dev/null
+++ b/docs/resources/diagrams/plantuml/fconf_bl1_load_config.puml
@@ -0,0 +1,52 @@
+@startuml
+
+box "BL1 common code"
+ participant bl1_main
+ participant bl_common
+end box
+
+box "arm platform code" #LightBlue
+ participant fvp_bl1_setup
+ participant arm_bl1_setup
+ participant arm_io_storage
+end box
+
+box "platform common code"
+ participant plat_bl1_common
+ participant fconf
+end box
+
+bl1_main -> fvp_bl1_setup : bl1_platform_setup()
+fvp_bl1_setup -> arm_bl1_setup : arm_bl1_platform_setup()
+arm_bl1_setup -> arm_io_storage : plat_arm_io_setup()
+note over arm_io_storage : register and setup fip
+arm_bl1_setup -> fconf : fconf_load_config()
+activate fconf
+ note over fconf
+ create and populate an
+ image_desc_t for TB_FW_CONFIG
+ end note
+ fconf -> bl_common : load_auth_image(TB_FW_CONFIG_ID, &image_info)
+ activate bl_common
+ note over bl_common
+ load and auth image from fip
+ with info from plat_io_policy
+ end note
+ bl_common -> arm_io_storage
+ arm_io_storage -> fconf: FCONF_GET_PROPERTY(arm, arm_io_policies, tb_fw_cfg)
+ note over fconf: use staticaly defined policies in bl1
+ fconf <- bl_common : image_info
+ deactivate bl_common
+ note over fconf : get tb_fw_config_dtb from image_info
+ fconf -> plat_bl1_common : bl1_plat_get_image_desc(BL2_IMAGE_ID)
+ fconf <- plat_bl1_common : BL2_IMAGE_DESC
+ note over fconf
+ set ep_info.args.arg0 of BL2_IMAGE_DESC
+ to TB_FW_CONFIG base address
+ end note
+arm_bl1_setup <- fconf
+deactivate fconf
+
+== load & auth, prepare and jump to BL2 ==
+
+@enduml
diff --git a/docs/resources/diagrams/plantuml/fconf_bl2_populate.puml b/docs/resources/diagrams/plantuml/fconf_bl2_populate.puml
new file mode 100644
index 000000000..98a3ff19b
--- /dev/null
+++ b/docs/resources/diagrams/plantuml/fconf_bl2_populate.puml
@@ -0,0 +1,41 @@
+@startuml
+
+box "BL2 common code"
+ participant bl2_entrypoint
+ participant bl2_main
+end box
+
+box "platform common code"
+ participant fconf
+ participant fconf_tbbr_getter
+end box
+
+box "arm platform code" #LightBlue
+ participant arm_bl2_setup
+ participant arm_io_storage
+ participant arm_fconf_io
+end box
+
+== bl2 setup ==
+bl2_entrypoint -> bl2_main : bl2_setup()
+bl2_main -> arm_bl2_setup : bl2_early_platform_setup2(\n\t arg0, arg1, arg2, arg3)
+note over arm_bl2_setup
+ arg0 = tb_fw_config
+ arg1 = mem_layout
+end note
+arm_bl2_setup -> arm_bl2_setup : arm_bl2_early_platform_setup(\n\t tb_fw_config, mem_layout)
+activate arm_bl2_setup
+ arm_bl2_setup -> fconf: fconf_polulate(tb_fw_config)
+ activate fconf
+ fconf -> fconf_tbbr_getter: fconf_populate_tbbr_dyn_config(uintptr_t dtb)
+ note over fconf_tbbr_getter: read tbbr propeties from dtb
+ fconf -> arm_fconf_io: fconf_populate_arm_io_policies(uintptr_t dtb)
+ note over arm_fconf_io: read arm io propeties from dtb
+ deactivate fconf
+ arm_bl2_setup -> arm_io_storage : plat_arm_io_setup()
+ note over arm_io_storage: use populated properties
+deactivate arm_bl2_setup
+
+== bl2 main ==
+
+@enduml
diff --git a/drivers/auth/auth_mod.c b/drivers/auth/auth_mod.c
index 3fb2d1a48..91ee1bea9 100644
--- a/drivers/auth/auth_mod.c
+++ b/drivers/auth/auth_mod.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2015-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -16,6 +16,7 @@
#include <drivers/auth/auth_mod.h>
#include <drivers/auth/crypto_mod.h>
#include <drivers/auth/img_parser_mod.h>
+#include <lib/fconf/fconf_tbbr_getter.h>
#include <plat/common/platform.h>
/* ASN.1 tags */
@@ -302,9 +303,8 @@ int auth_mod_get_parent_id(unsigned int img_id, unsigned int *parent_id)
const auth_img_desc_t *img_desc = NULL;
assert(parent_id != NULL);
-
/* Get the image descriptor */
- img_desc = cot_desc_ptr[img_id];
+ img_desc = FCONF_GET_PROPERTY(tbbr, cot, img_id);
/* Check if the image has no parent (ROT) */
if (img_desc->parent == NULL) {
@@ -353,7 +353,7 @@ int auth_mod_verify_img(unsigned int img_id,
int rc, i;
/* Get the image descriptor from the chain of trust */
- img_desc = cot_desc_ptr[img_id];
+ img_desc = FCONF_GET_PROPERTY(tbbr, cot, img_id);
/* Ask the parser to check the image integrity */
rc = img_parser_check_integrity(img_desc->img_type, img_ptr, img_len);
diff --git a/include/drivers/io/io_storage.h b/include/drivers/io/io_storage.h
index 0e6ffd619..a301ad563 100644
--- a/include/drivers/io/io_storage.h
+++ b/include/drivers/io/io_storage.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2014-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -53,7 +53,7 @@ typedef struct io_file_spec {
/* UUID specification - used to refer to data accessed using UUIDs (i.e. FIP
* images) */
typedef struct io_uuid_spec {
- const uuid_t uuid;
+ uuid_t uuid;
} io_uuid_spec_t;
/* Block specification - used to refer to data on a device supporting
diff --git a/include/lib/fconf/fconf.h b/include/lib/fconf/fconf.h
new file mode 100644
index 000000000..f58ff5710
--- /dev/null
+++ b/include/lib/fconf/fconf.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2019-2020, ARM Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef FCONF_H
+#define FCONF_H
+
+#include <stdint.h>
+
+/* Public API */
+#define FCONF_GET_PROPERTY(a, b, c) a##__##b##_getter(c)
+
+#define FCONF_REGISTER_POPULATOR(name, callback) \
+ __attribute__((used, section(".fconf_populator"))) \
+ const struct fconf_populator name##__populator = { \
+ .info = #name, \
+ .populate = callback \
+ };
+
+/*
+ * Populator callback
+ *
+ * This structure are used by the fconf_populate function and should only be
+ * defined by the FCONF_REGISTER_POPULATOR macro.
+ */
+struct fconf_populator {
+ /* Description of the data loaded by the callback */
+ const char *info;
+
+ /* Callback used by fconf_populate function with a provided config dtb.
+ * Return 0 on success, err_code < 0 otherwise.
+ */
+ int (*populate)(uintptr_t config);
+};
+
+/* Load firmware configuration dtb */
+void fconf_load_config(void);
+
+/* Top level populate function
+ *
+ * This function takes a configuration dtb and calls all the registered
+ * populator callback with it.
+ *
+ * Panic on error.
+ */
+void fconf_populate(uintptr_t config);
+
+/* FCONF specific getter */
+#define fconf__dtb_getter(prop) fconf_dtb_info.prop
+
+/* Structure used to locally keep a reference to the config dtb. */
+struct fconf_dtb_info_t {
+ uintptr_t base_addr;
+ size_t size;
+};
+
+extern struct fconf_dtb_info_t fconf_dtb_info;
+
+#endif /* FCONF_H */
diff --git a/include/lib/fconf/fconf_dyn_cfg_getter.h b/include/lib/fconf/fconf_dyn_cfg_getter.h
new file mode 100644
index 000000000..0fda8c9b2
--- /dev/null
+++ b/include/lib/fconf/fconf_dyn_cfg_getter.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2019-2020, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef FCONF_DYN_CFG_GETTER_H
+#define FCONF_DYN_CFG_GETTER_H
+
+#include <lib/fconf/fconf.h>
+
+/* Dynamic configuration related getter */
+#define dyn_cfg__dtb_getter(id) dyn_cfg_dtb_info_getter(id)
+
+struct dyn_cfg_dtb_info_t {
+ uintptr_t config_addr;
+ size_t config_max_size;
+ unsigned int config_id;
+};
+
+struct dyn_cfg_dtb_info_t *dyn_cfg_dtb_info_getter(unsigned int config_id);
+int fconf_populate_dtb_registry(uintptr_t config);
+
+#endif /* FCONF_DYN_CFG_GETTER_H */
diff --git a/include/lib/fconf/fconf_tbbr_getter.h b/include/lib/fconf/fconf_tbbr_getter.h
new file mode 100644
index 000000000..eddc0c4b5
--- /dev/null
+++ b/include/lib/fconf/fconf_tbbr_getter.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2019-2020, ARM Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef FCONF_TBBR_GETTER_H
+#define FCONF_TBBR_GETTER_H
+
+#include <lib/fconf/fconf.h>
+
+/* TBBR related getter */
+#define tbbr__cot_getter(id) cot_desc_ptr[id]
+
+#define tbbr__dyn_config_getter(id) tbbr_dyn_config.id
+
+struct tbbr_dyn_config_t {
+ uint32_t disable_auth;
+ void *mbedtls_heap_addr;
+ size_t mbedtls_heap_size;
+};
+
+extern struct tbbr_dyn_config_t tbbr_dyn_config;
+
+int fconf_populate_tbbr_dyn_config(uintptr_t config);
+
+#endif /* FCONF_TBBR_GETTER_H */
diff --git a/include/plat/arm/common/arm_dyn_cfg_helpers.h b/include/plat/arm/common/arm_dyn_cfg_helpers.h
index 3ad6d5468..2dc94abe3 100644
--- a/include/plat/arm/common/arm_dyn_cfg_helpers.h
+++ b/include/plat/arm/common/arm_dyn_cfg_helpers.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2018-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -10,12 +10,7 @@
#include <stdint.h>
/* Function declarations */
-int arm_dyn_get_config_load_info(void *dtb, int node, unsigned int config_id,
- uint64_t *config_addr, uint32_t *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);
-int arm_get_dtb_mbedtls_heap_info(void *dtb, void **heap_addr,
- size_t *heap_size);
int arm_set_dtb_mbedtls_heap_info(void *dtb, void *heap_addr,
size_t heap_size);
diff --git a/include/plat/arm/common/arm_fconf_getter.h b/include/plat/arm/common/arm_fconf_getter.h
new file mode 100644
index 000000000..28913a43f
--- /dev/null
+++ b/include/plat/arm/common/arm_fconf_getter.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2019-2020, ARM Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef ARM_FCONF_GETTER
+#define ARM_FCONF_GETTER
+
+#include <lib/fconf/fconf.h>
+
+/* ARM io policies */
+#define arm__io_policies_getter(id) &policies[id]
+
+struct plat_io_policy {
+ uintptr_t *dev_handle;
+ uintptr_t image_spec;
+ int (*check)(const uintptr_t spec);
+};
+
+extern struct plat_io_policy policies[];
+int fconf_populate_arm_io_policies(uintptr_t config);
+
+#endif /* ARM_FCONF_GETTER */
diff --git a/include/plat/arm/common/arm_fconf_io_storage.h b/include/plat/arm/common/arm_fconf_io_storage.h
new file mode 100644
index 000000000..02ee66c35
--- /dev/null
+++ b/include/plat/arm/common/arm_fconf_io_storage.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2020, ARM Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#ifndef ARM_FCONF_IO_STORAGE_H
+#define ARM_FCONF_IO_STORAGE_H
+
+#include <stdint.h>
+
+/* IO devices handle */
+extern uintptr_t memmap_dev_handle;
+extern uintptr_t fip_dev_handle;
+
+/* Function declarations */
+int open_fip(const uintptr_t spec);
+int open_memmap(const uintptr_t spec);
+
+#endif /* ARM_FCONF_IO_STORAGE_H */
diff --git a/include/plat/arm/common/plat_arm.h b/include/plat/arm/common/plat_arm.h
index 32dc9f93d..025a64fa2 100644
--- a/include/plat/arm/common/plat_arm.h
+++ b/include/plat/arm/common/plat_arm.h
@@ -6,6 +6,7 @@
#ifndef PLAT_ARM_H
#define PLAT_ARM_H
+#include <stdbool.h>
#include <stdint.h>
#include <drivers/arm/tzc_common.h>
@@ -148,7 +149,7 @@ void arm_setup_romlib(void);
#define ARM_ROTPK_DEVEL_ECDSA_ID 3
/* IO storage utility functions */
-void arm_io_setup(void);
+int arm_io_setup(void);
/* Security utility functions */
void arm_tzc400_setup(const arm_tzc_regions_info_t *tzc_regions);
@@ -222,11 +223,9 @@ void arm_sp_min_early_platform_setup(void *from_bl2, uintptr_t tos_fw_config,
void arm_sp_min_plat_runtime_setup(void);
/* FIP TOC validity check */
-int arm_io_is_toc_valid(void);
+bool arm_io_is_toc_valid(void);
/* Utility functions for Dynamic Config */
-void arm_load_tb_fw_config(void);
-void arm_bl2_set_tb_cfg_addr(void *dtb);
void arm_bl2_dyn_cfg_init(void);
void arm_bl1_set_mbedtls_heap(void);
int arm_get_mbedtls_heap(void **heap_addr, size_t *heap_size);
@@ -256,7 +255,7 @@ void plat_arm_interconnect_init(void);
void plat_arm_interconnect_enter_coherency(void);
void plat_arm_interconnect_exit_coherency(void);
void plat_arm_program_trusted_mailbox(uintptr_t address);
-int plat_arm_bl1_fwu_needed(void);
+bool plat_arm_bl1_fwu_needed(void);
__dead2 void plat_arm_error_handler(int err);
/*
diff --git a/include/tools_share/uuid.h b/include/tools_share/uuid.h
index 7d0043206..36be9ed37 100644
--- a/include/tools_share/uuid.h
+++ b/include/tools_share/uuid.h
@@ -27,7 +27,7 @@
*/
/*
- * Portions copyright (c) 2014, ARM Limited and Contributors.
+ * Portions copyright (c) 2014-2020, ARM Limited and Contributors.
* All rights reserved.
*/
@@ -56,6 +56,11 @@ struct uuid {
uint8_t node[_UUID_NODE_LEN];
};
+union uuid_helper_t {
+ struct uuid uuid_struct;
+ uint32_t word[4];
+};
+
/* XXX namespace pollution? */
typedef struct uuid uuid_t;
diff --git a/lib/fconf/fconf.c b/lib/fconf/fconf.c
new file mode 100644
index 000000000..a6da56b00
--- /dev/null
+++ b/lib/fconf/fconf.c
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2019-2020, ARM Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+
+#include <common/debug.h>
+#include <common/fdt_wrappers.h>
+#include <lib/fconf/fconf.h>
+#include <libfdt.h>
+#include <plat/common/platform.h>
+#include <platform_def.h>
+
+struct fconf_dtb_info_t fconf_dtb_info;
+
+void fconf_load_config(void)
+{
+ int err;
+ /* fconf FW_CONFIG and TB_FW_CONFIG are currently the same DTB */
+ image_info_t arm_tb_fw_info = {
+ .h.type = (uint8_t)PARAM_IMAGE_BINARY,
+ .h.version = (uint8_t)VERSION_2,
+ .h.size = (uint16_t)sizeof(image_info_t),
+ .h.attr = 0,
+ .image_base = ARM_TB_FW_CONFIG_BASE,
+ .image_max_size = (uint32_t)
+ (ARM_TB_FW_CONFIG_LIMIT - ARM_TB_FW_CONFIG_BASE)
+ };
+
+ VERBOSE("FCONF: Loading FW_CONFIG\n");
+ err = load_auth_image(TB_FW_CONFIG_ID, &arm_tb_fw_info);
+ if (err != 0) {
+ /* Return if FW_CONFIG is not loaded */
+ VERBOSE("Failed to load FW_CONFIG\n");
+ return;
+ }
+
+ /* At this point we know that a DTB is indeed available */
+ fconf_dtb_info.base_addr = arm_tb_fw_info.image_base;
+ fconf_dtb_info.size = (size_t)arm_tb_fw_info.image_size;
+
+#if !BL2_AT_EL3
+ image_desc_t *desc;
+
+ /* The BL2 ep_info arg0 is modified to point to FW_CONFIG */
+ desc = bl1_plat_get_image_desc(BL2_IMAGE_ID);
+ assert(desc != NULL);
+ desc->ep_info.args.arg0 = arm_tb_fw_info.image_base;
+#endif
+
+ INFO("FCONF: FW_CONFIG loaded at address = 0x%lx\n", arm_tb_fw_info.image_base);
+}
+
+void fconf_populate(uintptr_t config)
+{
+ assert(config != 0UL);
+
+ /* Check if the pointer to DTB is correct */
+ if (fdt_check_header((void *)config) != 0) {
+ ERROR("FCONF: Invalid DTB file passed for FW_CONFIG\n");
+ panic();
+ }
+
+ INFO("FCONF: Reading firmware configuration file from: 0x%lx\n", config);
+
+ /* Go through all registered populate functions */
+ IMPORT_SYM(struct fconf_populator *, __FCONF_POPULATOR_START__, start);
+ IMPORT_SYM(struct fconf_populator *, __FCONF_POPULATOR_END__, end);
+ const struct fconf_populator *populator;
+
+ for (populator = start; populator != end; populator++) {
+ assert((populator->info != NULL) && (populator->populate != NULL));
+
+ INFO("FCONF: Reading firmware configuration information for: %s\n", populator->info);
+ if (populator->populate(config) != 0) {
+ /* TODO: handle property miss */
+ panic();
+ }
+ }
+
+ /* save local pointer to the config dtb */
+ fconf_dtb_info.base_addr = config;
+}
diff --git a/lib/fconf/fconf.mk b/lib/fconf/fconf.mk
new file mode 100644
index 000000000..703196949
--- /dev/null
+++ b/lib/fconf/fconf.mk
@@ -0,0 +1,12 @@
+#
+# Copyright (c) 2019-2020, ARM Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+# Add Firmware Configuration files
+FCONF_SOURCES := lib/fconf/fconf.c \
+ lib/fconf/fconf_dyn_cfg_getter.c
+
+BL1_SOURCES += ${FCONF_SOURCES}
+BL2_SOURCES += ${FCONF_SOURCES}
diff --git a/lib/fconf/fconf_dyn_cfg_getter.c b/lib/fconf/fconf_dyn_cfg_getter.c
new file mode 100644
index 000000000..d313a5618
--- /dev/null
+++ b/lib/fconf/fconf_dyn_cfg_getter.c
@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2019-2020, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+
+#include <common/debug.h>
+#include <common/fdt_wrappers.h>
+#include <lib/fconf/fconf_dyn_cfg_getter.h>
+#include <lib/object_pool.h>
+#include <libfdt.h>
+
+/* We currently use TB_FW, SOC_FW, TOS_FW, NS_fw and HW configs */
+#define MAX_DTB_INFO U(5)
+
+static struct dyn_cfg_dtb_info_t dtb_infos[MAX_DTB_INFO];
+static OBJECT_POOL_ARRAY(dtb_info_pool, dtb_infos);
+
+struct dyn_cfg_dtb_info_t *dyn_cfg_dtb_info_getter(unsigned int config_id)
+{
+ unsigned int index;
+ struct dyn_cfg_dtb_info_t *info;
+
+ /* Positions index to the proper config-id */
+ for (index = 0; index < MAX_DTB_INFO; index++) {
+ if (dtb_infos[index].config_id == config_id) {
+ info = &dtb_infos[index];
+ break;
+ }
+ }
+
+ if (index == MAX_DTB_INFO) {
+ WARN("FCONF: Invalid config id %u\n", config_id);
+ info = NULL;
+ }
+
+ return info;
+}
+
+int fconf_populate_dtb_registry(uintptr_t config)
+{
+ int rc;
+ int node, child;
+ struct dyn_cfg_dtb_info_t *dtb_info;
+
+ /* As libfdt use void *, we can't avoid this cast */
+ const void *dtb = (void *)config;
+
+ /* Find the node offset point to "arm,dyn_cfg-dtb_registry" compatible property */
+ const char *compatible_str = "arm,dyn_cfg-dtb_registry";
+ node = fdt_node_offset_by_compatible(dtb, -1, compatible_str);
+ if (node < 0) {
+ ERROR("FCONF: Can't find %s compatible in dtb\n", compatible_str);
+ return node;
+ }
+
+ fdt_for_each_subnode(child, dtb, node) {
+ dtb_info = pool_alloc(&dtb_info_pool);
+
+ /* Read configuration dtb information */
+ rc = fdtw_read_cells(dtb, child, "load-address", 2, &dtb_info->config_addr);
+ if (rc < 0) {
+ ERROR("FCONF: Incomplete configuration property in dtb-registry.\n");
+ return rc;
+ }
+
+ rc = fdtw_read_cells(dtb, child, "max-size", 1, &dtb_info->config_max_size);
+ if (rc < 0) {
+ ERROR("FCONF: Incomplete configuration property in dtb-registry.\n");
+ return rc;
+ }
+
+ rc = fdtw_read_cells(dtb, child, "id", 1, &dtb_info->config_id);
+ if (rc < 0) {
+ ERROR("FCONF: Incomplete configuration property in dtb-registry.\n");
+ return rc;
+ }
+
+ VERBOSE("FCONF: dyn_cfg.dtb_registry cell found with:\n");
+ VERBOSE("\tload-address = %lx\n", dtb_info->config_addr);
+ VERBOSE("\tmax-size = 0x%zx\n", dtb_info->config_max_size);
+ VERBOSE("\tconfig-id = %u\n", dtb_info->config_id);
+ }
+
+ if ((child < 0) && (child != -FDT_ERR_NOTFOUND)) {
+ ERROR("%d: fdt_for_each_subnode(): %d\n", __LINE__, node);
+ return child;
+ }
+
+ return 0;
+}
+
+FCONF_REGISTER_POPULATOR(dyn_cfg, fconf_populate_dtb_registry);
diff --git a/lib/fconf/fconf_tbbr_getter.c b/lib/fconf/fconf_tbbr_getter.c
new file mode 100644
index 000000000..c6df9c876
--- /dev/null
+++ b/lib/fconf/fconf_tbbr_getter.c
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2019-2020, ARM Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#include <assert.h>
+
+#include <common/bl_common.h>
+#include <common/debug.h>
+#include <common/fdt_wrappers.h>
+#include <lib/fconf/fconf_tbbr_getter.h>
+#include <libfdt.h>
+
+struct tbbr_dyn_config_t tbbr_dyn_config;
+
+int fconf_populate_tbbr_dyn_config(uintptr_t config)
+{
+ int err;
+ int node;
+
+ /* As libfdt use void *, we can't avoid this cast */
+ const void *dtb = (void *)config;
+
+ /* Assert the node offset point to "arm,tb_fw" compatible property */
+ const char *compatible_str = "arm,tb_fw";
+ node = fdt_node_offset_by_compatible(dtb, -1, compatible_str);
+ if (node < 0) {
+ ERROR("FCONF: Can't find %s compatible in dtb\n", compatible_str);
+ return node;
+ }
+
+ /* Locate the disable_auth cell and read the value */
+ err = fdtw_read_cells(dtb, node, "disable_auth", 1, &tbbr_dyn_config.disable_auth);
+ if (err < 0) {
+ WARN("FCONF: Read cell failed for `disable_auth`\n");
+ return err;
+ }
+
+ /* Check if the value is boolean */
+ if ((tbbr_dyn_config.disable_auth != 0U) && (tbbr_dyn_config.disable_auth != 1U)) {
+ WARN("Invalid value for `disable_auth` cell %d\n", tbbr_dyn_config.disable_auth);
+ return -1;
+ }
+
+#if defined(DYN_DISABLE_AUTH)
+ if (tbbr_dyn_config.disable_auth == 1)
+ dyn_disable_auth();
+#endif
+
+ /* Retrieve the Mbed TLS heap details from the DTB */
+ err = fdtw_read_cells(dtb, node,
+ "mbedtls_heap_addr", 2, &tbbr_dyn_config.mbedtls_heap_addr);
+ if (err < 0) {
+ ERROR("FCONF: Read cell failed for mbedtls_heap\n");
+ return err;
+ }
+
+ err = fdtw_read_cells(dtb, node,
+ "mbedtls_heap_size", 1, &tbbr_dyn_config.mbedtls_heap_size);
+ if (err < 0) {
+ ERROR("FCONF: Read cell failed for mbedtls_heap\n");
+ return err;
+ }
+
+ VERBOSE("FCONF:tbbr.disable_auth cell found with value = %d\n",
+ tbbr_dyn_config.disable_auth);
+ VERBOSE("FCONF:tbbr.mbedtls_heap_addr cell found with value = %p\n",
+ tbbr_dyn_config.mbedtls_heap_addr);
+ VERBOSE("FCONF:tbbr.mbedtls_heap_size cell found with value = %zu\n",
+ tbbr_dyn_config.mbedtls_heap_size);
+
+ return 0;
+}
+
+FCONF_REGISTER_POPULATOR(tbbr, fconf_populate_tbbr_dyn_config);
diff --git a/make_helpers/defaults.mk b/make_helpers/defaults.mk
index fff336cd2..e8e990d45 100644
--- a/make_helpers/defaults.mk
+++ b/make_helpers/defaults.mk
@@ -201,6 +201,9 @@ USE_COHERENT_MEM := 1
# Build option to add debugfs support
USE_DEBUGFS := 0
+# Build option to fconf based io
+USE_FCONF_BASED_IO := 0
+
# Build option to choose whether Trusted Firmware uses library at ROM
USE_ROMLIB := 0
diff --git a/plat/arm/board/a5ds/fdts/a5ds_fw_config.dts b/plat/arm/board/a5ds/fdts/a5ds_fw_config.dts
new file mode 100644
index 000000000..2f2d265c5
--- /dev/null
+++ b/plat/arm/board/a5ds/fdts/a5ds_fw_config.dts
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2019-2020, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <export/common/tbbr/tbbr_img_def_exp.h>
+
+/dts-v1/;
+
+/ {
+ dtb-registry {
+ compatible = "arm,dyn_cfg-dtb_registry";
+
+ /* tb_fw_config is temporarily contained in this dtb */
+ tb_fw-config {
+ load-address = <0x0 0x2001010>;
+ max-size = <0x200>;
+ id = <TB_FW_CONFIG_ID>;
+ };
+
+ hw-config {
+ load-address = <0x0 0x83000000>;
+ max-size = <0x01000000>;
+ id = <HW_CONFIG_ID>;
+ };
+ };
+
+ tb_fw-config {
+ compatible = "arm,tb_fw";
+
+ /* Disable authentication for development */
+ disable_auth = <0x0>;
+ };
+};
diff --git a/plat/arm/board/a5ds/fdts/a5ds_tb_fw_config.dts b/plat/arm/board/a5ds/fdts/a5ds_tb_fw_config.dts
deleted file mode 100644
index 7b3aa1144..000000000
--- a/plat/arm/board/a5ds/fdts/a5ds_tb_fw_config.dts
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * Copyright (c) 2019-2020, Arm Limited. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-/dts-v1/;
-
-/ {
- /* Platform Config */
- plat_arm_bl2 {
- compatible = "arm,tb_fw";
- hw_config_addr = <0x0 0x83000000>;
- hw_config_max_size = <0x01000000>;
- /* Disable authentication for development */
- disable_auth = <0x0>;
- };
-};
diff --git a/plat/arm/board/a5ds/platform.mk b/plat/arm/board/a5ds/platform.mk
index d42b2bfa8..719884217 100644
--- a/plat/arm/board/a5ds/platform.mk
+++ b/plat/arm/board/a5ds/platform.mk
@@ -1,9 +1,12 @@
#
-# Copyright (c) 2019, Arm Limited. All rights reserved.
+# Copyright (c) 2019-2020, Arm Limited. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
+# Firmware Configuration Framework sources
+include lib/fconf/fconf.mk
+
# Add `libfdt` and Arm common helpers required for Dynamic Config
include lib/libfdt/libfdt.mk
@@ -67,7 +70,7 @@ BL2_SOURCES += lib/aarch32/arm32_aeabi_divmod.c \
# Add the FDT_SOURCES and options for Dynamic Config (only for Unix env)
ifdef UNIX_MK
-FVP_TB_FW_CONFIG := ${BUILD_PLAT}/fdts/a5ds_tb_fw_config.dtb
+FVP_TB_FW_CONFIG := ${BUILD_PLAT}/fdts/a5ds_fw_config.dtb
# Add the TB_FW_CONFIG to FIP and specify the same to certtool
$(eval $(call TOOL_ADD_PAYLOAD,${FVP_TB_FW_CONFIG},--tb-fw-config))
@@ -77,7 +80,7 @@ $(eval FVP_HW_CONFIG := ${BUILD_PLAT}/$(patsubst %.dts,%.dtb, \
# Add the HW_CONFIG to FIP and specify the same to certtool
$(eval $(call TOOL_ADD_PAYLOAD,${FVP_HW_CONFIG},--hw-config))
-FDT_SOURCES += plat/arm/board/a5ds/fdts/a5ds_tb_fw_config.dts \
+FDT_SOURCES += plat/arm/board/a5ds/fdts/a5ds_fw_config.dts \
${FVP_HW_CONFIG_DTS}
endif
diff --git a/plat/arm/board/fvp/fdts/fvp_fw_config.dts b/plat/arm/board/fvp/fdts/fvp_fw_config.dts
new file mode 100644
index 000000000..d0f60331d
--- /dev/null
+++ b/plat/arm/board/fvp/fdts/fvp_fw_config.dts
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2019-2020, ARM Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <export/common/tbbr/tbbr_img_def_exp.h>
+
+/dts-v1/;
+
+/ {
+ dtb-registry {
+ compatible = "arm,dyn_cfg-dtb_registry";
+
+ /* tb_fw_config is temporarily contained on this dtb */
+ tb_fw-config {
+ load-address = <0x0 0x4001010>;
+ max-size = <0x200>;
+ id = <TB_FW_CONFIG_ID>;
+ };
+
+ hw-config {
+ load-address = <0x0 0x82000000>;
+ max-size = <0x01000000>;
+ id = <HW_CONFIG_ID>;
+ };
+
+ /*
+ * Load SoC and TOS firmware configs at the base of
+ * non shared SRAM. The runtime checks ensure we don't
+ * overlap BL2, BL31 or BL32. The NT firmware config
+ * is loaded at base of DRAM.
+ */
+ soc_fw-config {
+ load-address = <0x0 0x04001000>;
+ max-size = <0x200>;
+ id = <SOC_FW_CONFIG_ID>;
+ };
+
+ tos_fw-config {
+ load-address = <0x0 0x04001200>;
+ max-size = <0x200>;
+ id = <TOS_FW_CONFIG_ID>;
+ };
+
+ nt_fw-config {
+ load-address = <0x0 0x80000000>;
+ max-size = <0x200>;
+ id = <NT_FW_CONFIG_ID>;
+ };
+ };
+
+ tb_fw-config {
+ compatible = "arm,tb_fw";
+
+ /* Disable authentication for development */
+ disable_auth = <0x0>;
+
+ /*
+ * The following two entries are placeholders for Mbed TLS
+ * heap information. The default values don't matter since
+ * they will be overwritten by BL1.
+ * In case of having shared Mbed TLS heap between BL1 and BL2,
+ * BL1 will populate these two properties with the respective
+ * info about the shared heap. This info will be available for
+ * BL2 in order to locate and re-use the heap.
+ */
+ mbedtls_heap_addr = <0x0 0x0>;
+ mbedtls_heap_size = <0x0>;
+ };
+
+ arm-io_policies {
+ fip-handles {
+ compatible = "arm,io-fip-handle";
+ scp_bl2_uuid = <0x3dfd6697 0x49e8be89 0xa1785dae 0x13826040>;
+ bl31_uuid = <0x6d08d447 0x4698fe4c 0x5029959b 0x005abdcb>;
+ bl32_uuid = <0x89e1d005 0x4713dc53 0xa502b8d 0x383e7a4b>;
+ bl32_extra1_uuid = <0x9bc2700b 0x40785a2a 0x560a659f 0x88827382>;
+ bl32_extra2_uuid = <0xb17ba88e 0x4d3fa2cf 0xbbe7fd85 0xd92002a5>;
+ bl33_uuid = <0xa7eed0d6 0x4bd5eafc 0x34998297 0xe4b634f2>;
+ hw_cfg_uuid = <0xd9f1b808 0x4993cfc9 0xbc6f62a9 0xcc65726b>;
+ soc_fw_cfg_uuid = <0x4b817999 0x46fb7603 0x268d8e8c 0xe059787f>;
+ tos_fw_cfg_uuid = <0x1a7c2526 0x477fc6db 0xc4c4968d 0x218024b0>;
+ nt_fw_cfg_uuid = <0x1598da28 0x447ee893 0xaf1a66ac 0xf9501580>;
+ t_key_cert_uuid = <0x90e87e82 0x11e460f8 0x7a77b4a1 0x4cf9b421>;
+ scp_fw_key_uuid = <0xa1214202 0x11e460f8 0x3cf39b8d 0x14a0150e>;
+ soc_fw_key_uuid = <0xccbeb88a 0x11e460f9 0x48ebd09a 0xf8dcd822>;
+ tos_fw_key_cert_uuid = <0x3d67794 0x11e460fb 0x10b7dd85 0x4ee8c5b>;
+ nt_fw_key_cert_uuid = <0x2a83d58a 0x11e460fb 0x30dfaf8a 0x5998c4bb>;
+ scp_fw_content_cert_uuid = <0x046fbe44 0x11e4635e 0xd8738bb2 0x5696aeea>;
+ soc_fw_content_cert_uuid = <0x200cb2e2 0x11e4635e 0xccabe89c 0x66b62bf9>;
+ tos_fw_content_cert_uuid = <0x11449fa4 0x11e4635e 0x53f2887 0x3df32a72>;
+ nt_fw_content_cert_uuid = <0xf3c1c48e 0x11e4635d 0xee87a9a7 0xa73fb240>;
+ };
+ };
+};
diff --git a/plat/arm/board/fvp/fvp_io_storage.c b/plat/arm/board/fvp/fvp_io_storage.c
index 9c4c1d574..109d32150 100644
--- a/plat/arm/board/fvp/fvp_io_storage.c
+++ b/plat/arm/board/fvp/fvp_io_storage.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2014-2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2014-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -120,18 +120,22 @@ void plat_arm_io_setup(void)
{
int io_result;
- arm_io_setup();
+ io_result = arm_io_setup();
+ if (io_result < 0) {
+ panic();
+ }
/* Register the additional IO devices on this platform */
io_result = register_io_dev_sh(&sh_dev_con);
- assert(io_result == 0);
+ if (io_result < 0) {
+ panic();
+ }
/* Open connections to devices and cache the handles */
io_result = io_dev_open(sh_dev_con, (uintptr_t)NULL, &sh_dev_handle);
- assert(io_result == 0);
-
- /* Ignore improbable errors in release builds */
- (void)io_result;
+ if (io_result < 0) {
+ panic();
+ }
}
/*
diff --git a/plat/arm/board/fvp/jmptbl.i b/plat/arm/board/fvp/jmptbl.i
index 6ccdd283f..b1b9ed463 100644
--- a/plat/arm/board/fvp/jmptbl.i
+++ b/plat/arm/board/fvp/jmptbl.i
@@ -20,6 +20,8 @@ fdt fdt_setprop_inplace
fdt fdt_check_header
fdt fdt_node_offset_by_compatible
fdt fdt_setprop_inplace_namelen_partial
+fdt fdt_first_subnode
+fdt fdt_next_subnode
mbedtls mbedtls_asn1_get_alg
mbedtls mbedtls_asn1_get_alg_null
mbedtls mbedtls_asn1_get_bitstring_null
diff --git a/plat/arm/board/fvp/platform.mk b/plat/arm/board/fvp/platform.mk
index 4cc3bc680..60374352a 100644
--- a/plat/arm/board/fvp/platform.mk
+++ b/plat/arm/board/fvp/platform.mk
@@ -10,6 +10,11 @@ FVP_USE_GIC_DRIVER := FVP_GICV3
# Use the SP804 timer instead of the generic one
FVP_USE_SP804_TIMER := 0
+# Use fconf based io for FVP
+ifeq ($(BL2_AT_EL3), 0)
+USE_FCONF_BASED_IO := 1
+endif
+
# Default cluster count for FVP
FVP_CLUSTER_COUNT := 2
@@ -205,12 +210,12 @@ endif
ifdef UNIX_MK
FVP_HW_CONFIG_DTS := fdts/${FVP_DT_PREFIX}.dts
FDT_SOURCES += $(addprefix plat/arm/board/fvp/fdts/, \
- ${PLAT}_tb_fw_config.dts \
+ ${PLAT}_fw_config.dts \
${PLAT}_soc_fw_config.dts \
${PLAT}_nt_fw_config.dts \
)
-FVP_TB_FW_CONFIG := ${BUILD_PLAT}/fdts/${PLAT}_tb_fw_config.dtb
+FVP_TB_FW_CONFIG := ${BUILD_PLAT}/fdts/${PLAT}_fw_config.dtb
FVP_SOC_FW_CONFIG := ${BUILD_PLAT}/fdts/${PLAT}_soc_fw_config.dtb
FVP_NT_FW_CONFIG := ${BUILD_PLAT}/fdts/${PLAT}_nt_fw_config.dtb
diff --git a/plat/arm/board/fvp_ve/fdts/fvp_ve_fw_config.dts b/plat/arm/board/fvp_ve/fdts/fvp_ve_fw_config.dts
new file mode 100644
index 000000000..147c8f366
--- /dev/null
+++ b/plat/arm/board/fvp_ve/fdts/fvp_ve_fw_config.dts
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2019-2020, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <export/common/tbbr/tbbr_img_def_exp.h>
+
+/dts-v1/;
+
+/ {
+ dtb-registry {
+ compatible = "arm,dyn_cfg-dtb_registry";
+
+ /* tb_fw_config is temporarily contained on this dtb */
+ tb_fw-config {
+ load-address = <0x0 0x80001010>;
+ max-size = <0x200>;
+ id = <TB_FW_CONFIG_ID>;
+ };
+
+ hw-config {
+ load-address = <0x0 0x82000000>;
+ max-size = <0x01000000>;
+ id = <HW_CONFIG_ID>;
+ };
+ };
+
+ tb_fw-config {
+ compatible = "arm,tb_fw";
+
+ /* Disable authentication for development */
+ disable_auth = <0x0>;
+ };
+};
diff --git a/plat/arm/board/fvp_ve/fdts/fvp_ve_tb_fw_config.dts b/plat/arm/board/fvp_ve/fdts/fvp_ve_tb_fw_config.dts
deleted file mode 100644
index 9ab2d9656..000000000
--- a/plat/arm/board/fvp_ve/fdts/fvp_ve_tb_fw_config.dts
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * Copyright (c) 2019, Arm Limited. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-/dts-v1/;
-
-/ {
- /* Platform Config */
- plat_arm_bl2 {
- compatible = "arm,tb_fw";
- hw_config_addr = <0x0 0x82000000>;
- hw_config_max_size = <0x01000000>;
- /* Disable authentication for development */
- disable_auth = <0x0>;
- };
-};
diff --git a/plat/arm/board/fvp_ve/platform.mk b/plat/arm/board/fvp_ve/platform.mk
index 4d21f4ba0..7883719b0 100644
--- a/plat/arm/board/fvp_ve/platform.mk
+++ b/plat/arm/board/fvp_ve/platform.mk
@@ -1,5 +1,5 @@
#
-# Copyright (c) 2019, Arm Limited. All rights reserved.
+# Copyright (c) 2019-2020, Arm Limited. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
@@ -72,9 +72,9 @@ BL2_SOURCES += plat/arm/board/fvp_ve/fvp_ve_bl2_setup.c \
# Add the FDT_SOURCES and options for Dynamic Config (only for Unix env)
ifdef UNIX_MK
-FDT_SOURCES += plat/arm/board/fvp_ve/fdts/fvp_ve_tb_fw_config.dts
+FDT_SOURCES += plat/arm/board/fvp_ve/fdts/fvp_ve_fw_config.dts
-FVP_TB_FW_CONFIG := ${BUILD_PLAT}/fdts/fvp_ve_tb_fw_config.dtb
+FVP_TB_FW_CONFIG := ${BUILD_PLAT}/fdts/fvp_ve_fw_config.dtb
# Add the TB_FW_CONFIG to FIP and specify the same to certtool
$(eval $(call TOOL_ADD_PAYLOAD,${FVP_TB_FW_CONFIG},--tb-fw-config))
@@ -116,6 +116,9 @@ else
PLAT_BL_COMMON_SOURCES += ${XLAT_TABLES_LIB_SRCS}
endif
+# Firmware Configuration Framework sources
+include lib/fconf/fconf.mk
+
# Add `libfdt` and Arm common helpers required for Dynamic Config
include lib/libfdt/libfdt.mk
diff --git a/plat/arm/board/fvp/fdts/fvp_tb_fw_config.dts b/plat/arm/board/juno/fdts/juno_fw_config.dts
index ce589385c..cab6f2bf4 100644
--- a/plat/arm/board/fvp/fdts/fvp_tb_fw_config.dts
+++ b/plat/arm/board/juno/fdts/juno_fw_config.dts
@@ -1,32 +1,31 @@
/*
- * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2019-2020, ARM Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
+#include <export/common/tbbr/tbbr_img_def_exp.h>
+
/dts-v1/;
/ {
- /* Platform Config */
- plat_arm_bl2 {
+ dtb-registry {
+ compatible = "arm,dyn_cfg-dtb_registry";
+
+ /* tb_fw_config is temporarily contained on this dtb */
+ tb_fw-config {
+ load-address = <0x0 0x4001010>;
+ max-size = <0x200>;
+ id = <TB_FW_CONFIG_ID>;
+ };
+ };
+
+ tb_fw-config {
+ /* Platform Config */
compatible = "arm,tb_fw";
- hw_config_addr = <0x0 0x82000000>;
- hw_config_max_size = <0x01000000>;
/* Disable authentication for development */
disable_auth = <0x0>;
/*
- * Load SoC and TOS firmware configs at the base of
- * non shared SRAM. The runtime checks ensure we don't
- * overlap BL2, BL31 or BL32. The NT firmware config
- * is loaded at base of DRAM.
- */
- soc_fw_config_addr = <0x0 0x04001000>;
- soc_fw_config_max_size = <0x200>;
- tos_fw_config_addr = <0x0 0x04001200>;
- tos_fw_config_max_size = <0x200>;
- nt_fw_config_addr = <0x0 0x80000000>;
- nt_fw_config_max_size = <0x200>;
- /*
* The following two entries are placeholders for Mbed TLS
* heap information. The default values don't matter since
* they will be overwritten by BL1.
diff --git a/plat/arm/board/juno/fdts/juno_tb_fw_config.dts b/plat/arm/board/juno/fdts/juno_tb_fw_config.dts
deleted file mode 100644
index a8ab6c5f9..000000000
--- a/plat/arm/board/juno/fdts/juno_tb_fw_config.dts
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-/dts-v1/;
-
-/ {
- /* Platform Config */
- compatible = "arm,tb_fw";
- /* Disable authentication for development */
- disable_auth = <0x0>;
- /*
- * The following two entries are placeholders for Mbed TLS
- * heap information. The default values don't matter since
- * they will be overwritten by BL1.
- * In case of having shared Mbed TLS heap between BL1 and BL2,
- * BL1 will populate these two properties with the respective
- * info about the shared heap. This info will be available for
- * BL2 in order to locate and re-use the heap.
- */
- mbedtls_heap_addr = <0x0 0x0>;
- mbedtls_heap_size = <0x0>;
-};
diff --git a/plat/arm/board/juno/jmptbl.i b/plat/arm/board/juno/jmptbl.i
index 6ccdd283f..b1b9ed463 100644
--- a/plat/arm/board/juno/jmptbl.i
+++ b/plat/arm/board/juno/jmptbl.i
@@ -20,6 +20,8 @@ fdt fdt_setprop_inplace
fdt fdt_check_header
fdt fdt_node_offset_by_compatible
fdt fdt_setprop_inplace_namelen_partial
+fdt fdt_first_subnode
+fdt fdt_next_subnode
mbedtls mbedtls_asn1_get_alg
mbedtls mbedtls_asn1_get_alg_null
mbedtls mbedtls_asn1_get_bitstring_null
diff --git a/plat/arm/board/juno/juno_bl1_setup.c b/plat/arm/board/juno/juno_bl1_setup.c
index 89398d686..25a27da07 100644
--- a/plat/arm/board/juno/juno_bl1_setup.c
+++ b/plat/arm/board/juno/juno_bl1_setup.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2015-2016, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -60,17 +60,13 @@ static int is_watchdog_reset(void)
* The following function checks if Firmware update is needed,
* by checking if TOC in FIP image is valid or watchdog reset happened.
******************************************************************************/
-int plat_arm_bl1_fwu_needed(void)
+bool plat_arm_bl1_fwu_needed(void)
{
const int32_t *nv_flags_ptr = (const int32_t *)V2M_SYS_NVFLAGS_ADDR;
/* Check if TOC is invalid or watchdog reset happened. */
- if ((arm_io_is_toc_valid() != 1) ||
- (((*nv_flags_ptr == -EAUTH) || (*nv_flags_ptr == -ENOENT))
- && is_watchdog_reset()))
- return 1;
-
- return 0;
+ return (!arm_io_is_toc_valid() || (((*nv_flags_ptr == -EAUTH) ||
+ (*nv_flags_ptr == -ENOENT)) && is_watchdog_reset()));
}
/*******************************************************************************
diff --git a/plat/arm/board/juno/platform.mk b/plat/arm/board/juno/platform.mk
index a85ad5376..27650d266 100644
--- a/plat/arm/board/juno/platform.mk
+++ b/plat/arm/board/juno/platform.mk
@@ -156,8 +156,8 @@ else
endif
# Add the FDT_SOURCES and options for Dynamic Config
-FDT_SOURCES += plat/arm/board/juno/fdts/${PLAT}_tb_fw_config.dts
-TB_FW_CONFIG := ${BUILD_PLAT}/fdts/${PLAT}_tb_fw_config.dtb
+FDT_SOURCES += plat/arm/board/juno/fdts/${PLAT}_fw_config.dts
+TB_FW_CONFIG := ${BUILD_PLAT}/fdts/${PLAT}_fw_config.dtb
# Add the TB_FW_CONFIG to FIP and specify the same to certtool
$(eval $(call TOOL_ADD_PAYLOAD,${TB_FW_CONFIG},--tb-fw-config))
diff --git a/plat/arm/common/arm_bl1_setup.c b/plat/arm/common/arm_bl1_setup.c
index b19a7c39c..c2f49c211 100644
--- a/plat/arm/common/arm_bl1_setup.c
+++ b/plat/arm/common/arm_bl1_setup.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2015-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -11,6 +11,7 @@
#include <arch.h>
#include <bl1/bl1.h>
#include <common/bl_common.h>
+#include <lib/fconf/fconf.h>
#include <lib/utils.h>
#include <lib/xlat_tables/xlat_tables_compat.h>
#include <plat/arm/common/plat_arm.h>
@@ -143,7 +144,10 @@ void arm_bl1_platform_setup(void)
{
/* Initialise the IO layer and register platform IO devices */
plat_arm_io_setup();
- arm_load_tb_fw_config();
+
+ /* Load fw config */
+ fconf_load_config();
+
#if TRUSTED_BOARD_BOOT
/* Share the Mbed TLS heap info with other images */
arm_bl1_set_mbedtls_heap();
@@ -184,9 +188,9 @@ void bl1_plat_prepare_exit(entry_point_info_t *ep_info)
* On Arm platforms, the FWU process is triggered when the FIP image has
* been tampered with.
*/
-int plat_arm_bl1_fwu_needed(void)
+bool plat_arm_bl1_fwu_needed(void)
{
- return (arm_io_is_toc_valid() != 1);
+ return !arm_io_is_toc_valid();
}
/*******************************************************************************
@@ -195,8 +199,5 @@ int plat_arm_bl1_fwu_needed(void)
******************************************************************************/
unsigned int bl1_plat_get_next_image_id(void)
{
- if (plat_arm_bl1_fwu_needed() != 0)
- return NS_BL1U_IMAGE_ID;
-
- return BL2_IMAGE_ID;
+ return plat_arm_bl1_fwu_needed() ? NS_BL1U_IMAGE_ID : BL2_IMAGE_ID;
}
diff --git a/plat/arm/common/arm_bl2_setup.c b/plat/arm/common/arm_bl2_setup.c
index 9adb1ea5e..dd392085d 100644
--- a/plat/arm/common/arm_bl2_setup.c
+++ b/plat/arm/common/arm_bl2_setup.c
@@ -14,6 +14,7 @@
#include <common/debug.h>
#include <common/desc_image_load.h>
#include <drivers/generic_delay_timer.h>
+#include <lib/fconf/fconf.h>
#ifdef SPD_opteed
#include <lib/optee_utils.h>
#endif
@@ -58,11 +59,13 @@ void arm_bl2_early_platform_setup(uintptr_t tb_fw_config,
/* Setup the BL2 memory layout */
bl2_tzram_layout = *mem_layout;
+ /* Fill the properties struct with the info from the config dtb */
+ if (tb_fw_config != 0U) {
+ fconf_populate(tb_fw_config);
+ }
+
/* Initialise the IO layer and register platform IO devices */
plat_arm_io_setup();
-
- if (tb_fw_config != 0U)
- arm_bl2_set_tb_cfg_addr((void *)tb_fw_config);
}
void bl2_early_platform_setup2(u_register_t arg0, u_register_t arg1, u_register_t arg2, u_register_t arg3)
diff --git a/plat/arm/common/arm_common.mk b/plat/arm/common/arm_common.mk
index d2578b777..17058d1a5 100644
--- a/plat/arm/common/arm_common.mk
+++ b/plat/arm/common/arm_common.mk
@@ -177,12 +177,20 @@ include lib/xlat_tables_v2/xlat_tables.mk
PLAT_BL_COMMON_SOURCES += ${XLAT_TABLES_LIB_SRCS}
endif
+ifeq (${USE_FCONF_BASED_IO}, 0)
+ARM_IO_SOURCES += plat/arm/common/arm_io_storage.c
+else
+ARM_IO_SOURCES += plat/arm/common/arm_fconf_io_storage.c \
+ plat/arm/common/fconf/arm_fconf_io.c
+endif
+
BL1_SOURCES += drivers/io/io_fip.c \
drivers/io/io_memmap.c \
drivers/io/io_storage.c \
plat/arm/common/arm_bl1_setup.c \
plat/arm/common/arm_err.c \
- plat/arm/common/arm_io_storage.c
+ ${ARM_IO_SOURCES}
+
ifdef EL3_PAYLOAD_BASE
# Need the plat_arm_program_trusted_mailbox() function to release secondary CPUs from
# their holding pen
@@ -196,7 +204,10 @@ BL2_SOURCES += drivers/delay_timer/delay_timer.c \
drivers/io/io_storage.c \
plat/arm/common/arm_bl2_setup.c \
plat/arm/common/arm_err.c \
- plat/arm/common/arm_io_storage.c
+ ${ARM_IO_SOURCES}
+
+# Firmware Configuration Framework sources
+include lib/fconf/fconf.mk
# Add `libfdt` and Arm common helpers required for Dynamic Config
include lib/libfdt/libfdt.mk
@@ -278,6 +289,7 @@ ifneq (${TRUSTED_BOARD_BOOT},0)
AUTH_SOURCES := drivers/auth/auth_mod.c \
drivers/auth/crypto_mod.c \
drivers/auth/img_parser_mod.c \
+ lib/fconf/fconf_tbbr_getter.c
# Include the selected chain of trust sources.
ifeq (${COT},tbbr)
diff --git a/plat/arm/common/arm_dyn_cfg.c b/plat/arm/common/arm_dyn_cfg.c
index fdc3ef394..443d40fe8 100644
--- a/plat/arm/common/arm_dyn_cfg.c
+++ b/plat/arm/common/arm_dyn_cfg.c
@@ -16,13 +16,13 @@
#if TRUSTED_BOARD_BOOT
#include <drivers/auth/mbedtls/mbedtls_config.h>
#endif
+#include <lib/fconf/fconf.h>
+#include <lib/fconf/fconf_dyn_cfg_getter.h>
+#include <lib/fconf/fconf_tbbr_getter.h>
#include <plat/arm/common/arm_dyn_cfg_helpers.h>
#include <plat/arm/common/plat_arm.h>
#include <plat/common/platform.h>
-/* Variable to store the address to TB_FW_CONFIG passed from BL1 */
-static void *tb_fw_cfg_dtb;
-
#if TRUSTED_BOARD_BOOT
static void *mbedtls_heap_addr;
@@ -57,20 +57,10 @@ int arm_get_mbedtls_heap(void **heap_addr, size_t *heap_size)
#elif defined(IMAGE_BL2)
- int err;
-
/* If in BL2, retrieve the already allocated heap's info from DTB */
- if (tb_fw_cfg_dtb != NULL) {
- err = arm_get_dtb_mbedtls_heap_info(tb_fw_cfg_dtb, heap_addr,
- heap_size);
- if (err < 0) {
- ERROR("BL2: unable to retrieve shared Mbed TLS heap information from DTB\n");
- panic();
- }
- } else {
- ERROR("BL2: DTB missing, cannot get Mbed TLS heap\n");
- panic();
- }
+ *heap_addr = FCONF_GET_PROPERTY(tbbr, dyn_config, mbedtls_heap_addr);
+ *heap_size = FCONF_GET_PROPERTY(tbbr, dyn_config, mbedtls_heap_size);
+
#endif
return 0;
@@ -83,6 +73,7 @@ int arm_get_mbedtls_heap(void **heap_addr, size_t *heap_size)
void arm_bl1_set_mbedtls_heap(void)
{
int err;
+ uintptr_t tb_fw_cfg_dtb;
/*
* If tb_fw_cfg_dtb==NULL then DTB is not present for the current
@@ -96,8 +87,15 @@ void arm_bl1_set_mbedtls_heap(void)
* information, we would need to call plat_get_mbedtls_heap to retrieve
* the default heap's address and size.
*/
- if ((tb_fw_cfg_dtb != NULL) && (mbedtls_heap_addr != NULL)) {
- err = arm_set_dtb_mbedtls_heap_info(tb_fw_cfg_dtb,
+
+ /* fconf FW_CONFIG and TB_FW_CONFIG are currently the same DTB*/
+ tb_fw_cfg_dtb = FCONF_GET_PROPERTY(fconf, dtb, base_addr);
+
+ if ((tb_fw_cfg_dtb != 0UL) && (mbedtls_heap_addr != NULL)) {
+ /* As libfdt use void *, we can't avoid this cast */
+ void *dtb = (void *)tb_fw_cfg_dtb;
+
+ err = arm_set_dtb_mbedtls_heap_info(dtb,
mbedtls_heap_addr, mbedtls_heap_size);
if (err < 0) {
ERROR("BL1: unable to write shared Mbed TLS heap information to DTB\n");
@@ -108,91 +106,23 @@ void arm_bl1_set_mbedtls_heap(void)
* images. It's critical because BL2 won't be able to proceed
* without the heap info.
*/
- flush_dcache_range((uintptr_t)tb_fw_cfg_dtb,
- fdt_totalsize(tb_fw_cfg_dtb));
+ flush_dcache_range(tb_fw_cfg_dtb, fdt_totalsize(dtb));
}
}
#endif /* TRUSTED_BOARD_BOOT */
/*
- * Helper function to load TB_FW_CONFIG and populate the load information to
- * arg0 of BL2 entrypoint info.
- */
-void arm_load_tb_fw_config(void)
-{
- int err;
- uintptr_t config_base = 0UL;
- image_desc_t *desc;
-
- image_desc_t arm_tb_fw_info = {
- .image_id = TB_FW_CONFIG_ID,
- SET_STATIC_PARAM_HEAD(image_info, PARAM_IMAGE_BINARY,
- VERSION_2, image_info_t, 0),
- .image_info.image_base = ARM_TB_FW_CONFIG_BASE,
- .image_info.image_max_size =
- ARM_TB_FW_CONFIG_LIMIT - ARM_TB_FW_CONFIG_BASE
- };
-
- VERBOSE("BL1: Loading TB_FW_CONFIG\n");
- err = load_auth_image(TB_FW_CONFIG_ID, &arm_tb_fw_info.image_info);
- if (err != 0) {
- /* Return if TB_FW_CONFIG is not loaded */
- VERBOSE("Failed to load TB_FW_CONFIG\n");
- return;
- }
-
- /* At this point we know that a DTB is indeed available */
- config_base = arm_tb_fw_info.image_info.image_base;
- tb_fw_cfg_dtb = (void *)config_base;
-
- /* The BL2 ep_info arg0 is modified to point to TB_FW_CONFIG */
- desc = bl1_plat_get_image_desc(BL2_IMAGE_ID);
- assert(desc != NULL);
- desc->ep_info.args.arg0 = config_base;
-
- INFO("BL1: TB_FW_CONFIG loaded at address = 0x%lx\n", config_base);
-
-#if TRUSTED_BOARD_BOOT && defined(DYN_DISABLE_AUTH)
- int tb_fw_node;
- uint32_t disable_auth = 0;
-
- err = arm_dyn_tb_fw_cfg_init((void *)config_base, &tb_fw_node);
- if (err < 0) {
- ERROR("Invalid TB_FW_CONFIG loaded\n");
- panic();
- }
-
- err = arm_dyn_get_disable_auth((void *)config_base, tb_fw_node, &disable_auth);
- if (err < 0)
- return;
-
- if (disable_auth == 1)
- dyn_disable_auth();
-#endif
-}
-
-/*
- * BL2 utility function to set the address of TB_FW_CONFIG passed from BL1.
- */
-void arm_bl2_set_tb_cfg_addr(void *dtb)
-{
- assert(dtb != NULL);
- tb_fw_cfg_dtb = dtb;
-}
-
-/*
* BL2 utility function to initialize dynamic configuration specified by
* TB_FW_CONFIG. Populate the bl_mem_params_node_t of other FW_CONFIGs if
* specified in TB_FW_CONFIG.
*/
void arm_bl2_dyn_cfg_init(void)
{
- int err = 0, tb_fw_node;
unsigned int i;
bl_mem_params_node_t *cfg_mem_params = NULL;
- uint64_t image_base;
- uint32_t image_size;
+ uintptr_t image_base;
+ size_t image_size;
const unsigned int config_ids[] = {
HW_CONFIG_ID,
SOC_FW_CONFIG_ID,
@@ -203,16 +133,7 @@ void arm_bl2_dyn_cfg_init(void)
#endif
};
- if (tb_fw_cfg_dtb == NULL) {
- VERBOSE("No TB_FW_CONFIG specified\n");
- return;
- }
-
- err = arm_dyn_tb_fw_cfg_init(tb_fw_cfg_dtb, &tb_fw_node);
- if (err < 0) {
- ERROR("Invalid TB_FW_CONFIG passed from BL1\n");
- panic();
- }
+ const struct dyn_cfg_dtb_info_t *dtb_info;
/* Iterate through all the fw config IDs */
for (i = 0; i < ARRAY_SIZE(config_ids); i++) {
@@ -223,14 +144,16 @@ void arm_bl2_dyn_cfg_init(void)
continue;
}
- err = arm_dyn_get_config_load_info(tb_fw_cfg_dtb, tb_fw_node,
- config_ids[i], &image_base, &image_size);
- if (err < 0) {
+ dtb_info = FCONF_GET_PROPERTY(dyn_cfg, dtb, config_ids[i]);
+ if (dtb_info == NULL) {
VERBOSE("Couldn't find config_id %d load info in TB_FW_CONFIG\n",
config_ids[i]);
continue;
}
+ image_base = dtb_info->config_addr;
+ image_size = dtb_info->config_max_size;
+
/*
* Do some runtime checks on the load addresses of soc_fw_config,
* tos_fw_config, nt_fw_config. This is not a comprehensive check
@@ -262,8 +185,8 @@ void arm_bl2_dyn_cfg_init(void)
}
- cfg_mem_params->image_info.image_base = (uintptr_t)image_base;
- cfg_mem_params->image_info.image_max_size = image_size;
+ cfg_mem_params->image_info.image_base = image_base;
+ cfg_mem_params->image_info.image_max_size = (uint32_t)image_size;
/*
* Remove the IMAGE_ATTRIB_SKIP_LOADING attribute from
@@ -271,16 +194,4 @@ void arm_bl2_dyn_cfg_init(void)
*/
cfg_mem_params->image_info.h.attr &= ~IMAGE_ATTRIB_SKIP_LOADING;
}
-
-#if TRUSTED_BOARD_BOOT && defined(DYN_DISABLE_AUTH)
- uint32_t disable_auth = 0;
-
- err = arm_dyn_get_disable_auth(tb_fw_cfg_dtb, tb_fw_node,
- &disable_auth);
- if (err < 0)
- return;
-
- if (disable_auth == 1)
- dyn_disable_auth();
-#endif
}
diff --git a/plat/arm/common/arm_dyn_cfg_helpers.c b/plat/arm/common/arm_dyn_cfg_helpers.c
index daf0f0a63..909c4a671 100644
--- a/plat/arm/common/arm_dyn_cfg_helpers.c
+++ b/plat/arm/common/arm_dyn_cfg_helpers.c
@@ -15,128 +15,6 @@
#define DTB_PROP_MBEDTLS_HEAP_ADDR "mbedtls_heap_addr"
#define DTB_PROP_MBEDTLS_HEAP_SIZE "mbedtls_heap_size"
-typedef struct config_load_info_prop {
- unsigned int config_id;
- const char *config_addr;
- const char *config_max_size;
-} config_load_info_prop_t;
-
-static const config_load_info_prop_t prop_names[] = {
- {HW_CONFIG_ID, "hw_config_addr", "hw_config_max_size"},
- {SOC_FW_CONFIG_ID, "soc_fw_config_addr", "soc_fw_config_max_size"},
- {TOS_FW_CONFIG_ID, "tos_fw_config_addr", "tos_fw_config_max_size"},
- {NT_FW_CONFIG_ID, "nt_fw_config_addr", "nt_fw_config_max_size"}
-};
-
-/*******************************************************************************
- * Helper to read the load information corresponding to the `config_id` in
- * TB_FW_CONFIG. This function expects the following properties to be defined :
- * <config>_addr size : 2 cells
- * <config>_max_size size : 1 cell
- *
- * Arguments:
- * void *dtb - pointer to the TB_FW_CONFIG in memory
- * int node - The node offset to appropriate node in the
- * DTB.
- * unsigned int config_id - The configuration id
- * uint64_t *config_addr - Returns the `config` load address if read
- * is successful.
- * uint32_t *config_size - Returns the `config` size if read is
- * successful.
- *
- * Returns 0 on success and -1 on error.
- ******************************************************************************/
-int arm_dyn_get_config_load_info(void *dtb, int node, unsigned int config_id,
- uint64_t *config_addr, uint32_t *config_size)
-{
- int err;
- unsigned int i;
-
- assert(dtb != NULL);
- assert(config_addr != NULL);
- assert(config_size != NULL);
-
- for (i = 0; i < ARRAY_SIZE(prop_names); i++) {
- if (prop_names[i].config_id == config_id)
- break;
- }
-
- if (i == ARRAY_SIZE(prop_names)) {
- WARN("Invalid config id %d\n", config_id);
- return -1;
- }
-
- /* Check if the pointer to DT is correct */
- assert(fdt_check_header(dtb) == 0);
-
- /* Assert the node offset point to "arm,tb_fw" compatible property */
- assert(node == fdt_node_offset_by_compatible(dtb, -1, "arm,tb_fw"));
-
- err = fdtw_read_cells(dtb, node, prop_names[i].config_addr, 2,
- (void *) config_addr);
- if (err < 0) {
- WARN("Read cell failed for %s\n", prop_names[i].config_addr);
- return -1;
- }
-
- err = fdtw_read_cells(dtb, node, prop_names[i].config_max_size, 1,
- (void *) config_size);
- if (err < 0) {
- WARN("Read cell failed for %s\n", prop_names[i].config_max_size);
- return -1;
- }
-
- VERBOSE("Dyn cfg: Read config_id %d load info from TB_FW_CONFIG 0x%llx 0x%x\n",
- config_id, (unsigned long long)*config_addr, *config_size);
-
- return 0;
-}
-
-/*******************************************************************************
- * Helper to read the `disable_auth` property in config DTB. This function
- * expects the following properties to be present in the config DTB.
- * name : disable_auth size : 1 cell
- *
- * Arguments:
- * void *dtb - pointer to the TB_FW_CONFIG in memory
- * int node - The node offset to appropriate node in the
- * DTB.
- * uint64_t *disable_auth - The value of `disable_auth` property on
- * successful read. Must be 0 or 1.
- *
- * Returns 0 on success and -1 on error.
- ******************************************************************************/
-int arm_dyn_get_disable_auth(void *dtb, int node, uint32_t *disable_auth)
-{
- int err;
-
- assert(dtb != NULL);
- assert(disable_auth != NULL);
-
- /* Check if the pointer to DT is correct */
- assert(fdt_check_header(dtb) == 0);
-
- /* Assert the node offset point to "arm,tb_fw" compatible property */
- assert(node == fdt_node_offset_by_compatible(dtb, -1, "arm,tb_fw"));
-
- /* Locate the disable_auth cell and read the value */
- err = fdtw_read_cells(dtb, node, "disable_auth", 1, disable_auth);
- if (err < 0) {
- WARN("Read cell failed for `disable_auth`\n");
- return -1;
- }
-
- /* Check if the value is boolean */
- if ((*disable_auth != 0U) && (*disable_auth != 1U)) {
- WARN("Invalid value for `disable_auth` cell %d\n", *disable_auth);
- return -1;
- }
-
- VERBOSE("Dyn cfg: `disable_auth` cell found with value = %d\n",
- *disable_auth);
- return 0;
-}
-
/*******************************************************************************
* Validate the tb_fw_config is a valid DTB file and returns the node offset
* to "arm,tb_fw" property.
@@ -169,47 +47,6 @@ int arm_dyn_tb_fw_cfg_init(void *dtb, int *node)
}
/*
- * Reads and returns the Mbed TLS shared heap information from the DTB.
- * This function is supposed to be called *only* when a DTB is present.
- * This function is supposed to be called only by BL2.
- *
- * Returns:
- * 0 = success
- * -1 = error. In this case the values of heap_addr, heap_size should be
- * considered as garbage by the caller.
- */
-int arm_get_dtb_mbedtls_heap_info(void *dtb, void **heap_addr,
- size_t *heap_size)
-{
- int err, dtb_root;
-
- /* Verify the DTB is valid and get the root node */
- err = arm_dyn_tb_fw_cfg_init(dtb, &dtb_root);
- if (err < 0) {
- ERROR("Invalid TB_FW_CONFIG. Cannot retrieve Mbed TLS heap information from DTB\n");
- return -1;
- }
-
- /* Retrieve the Mbed TLS heap details from the DTB */
- err = fdtw_read_cells(dtb, dtb_root,
- DTB_PROP_MBEDTLS_HEAP_ADDR, 2, heap_addr);
- if (err < 0) {
- ERROR("Error while reading %s from DTB\n",
- DTB_PROP_MBEDTLS_HEAP_ADDR);
- return -1;
- }
- err = fdtw_read_cells(dtb, dtb_root,
- DTB_PROP_MBEDTLS_HEAP_SIZE, 1, heap_size);
- if (err < 0) {
- ERROR("Error while reading %s from DTB\n",
- DTB_PROP_MBEDTLS_HEAP_SIZE);
- return -1;
- }
- return 0;
-}
-
-
-/*
* This function writes the Mbed TLS heap address and size in the DTB. When it
* is called, it is guaranteed that a DTB is available. However it is not
* guaranteed that the shared Mbed TLS heap implementation is used. Thus we
diff --git a/plat/arm/common/arm_fconf_io_storage.c b/plat/arm/common/arm_fconf_io_storage.c
new file mode 100644
index 000000000..341622a0b
--- /dev/null
+++ b/plat/arm/common/arm_fconf_io_storage.c
@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2015-2020, ARM Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+
+#include <common/debug.h>
+#include <drivers/io/io_driver.h>
+#include <drivers/io/io_fip.h>
+#include <drivers/io/io_memmap.h>
+#include <drivers/io/io_storage.h>
+#include <lib/utils.h>
+#include <tools_share/firmware_image_package.h>
+
+#include <plat/arm/common/arm_fconf_getter.h>
+#include <plat/arm/common/arm_fconf_io_storage.h>
+#include <plat/arm/common/plat_arm.h>
+#include <plat/common/platform.h>
+#include <platform_def.h>
+
+/* IO devices */
+static const io_dev_connector_t *fip_dev_con;
+uintptr_t fip_dev_handle;
+static const io_dev_connector_t *memmap_dev_con;
+uintptr_t memmap_dev_handle;
+
+/* Weak definitions may be overridden in specific ARM standard platform */
+#pragma weak plat_arm_io_setup
+#pragma weak plat_arm_get_alt_image_source
+
+int open_fip(const uintptr_t spec)
+{
+ int result;
+ uintptr_t local_image_handle;
+
+ /* See if a Firmware Image Package is available */
+ result = io_dev_init(fip_dev_handle, (uintptr_t)FIP_IMAGE_ID);
+ if (result == 0) {
+ result = io_open(fip_dev_handle, spec, &local_image_handle);
+ if (result == 0) {
+ VERBOSE("Using FIP\n");
+ io_close(local_image_handle);
+ }
+ }
+ return result;
+}
+
+int open_memmap(const uintptr_t spec)
+{
+ int result;
+ uintptr_t local_image_handle;
+
+ result = io_dev_init(memmap_dev_handle, (uintptr_t)NULL);
+ if (result == 0) {
+ result = io_open(memmap_dev_handle, spec, &local_image_handle);
+ if (result == 0) {
+ VERBOSE("Using Memmap\n");
+ io_close(local_image_handle);
+ }
+ }
+ return result;
+}
+
+int arm_io_setup(void)
+{
+ int io_result;
+
+ io_result = register_io_dev_fip(&fip_dev_con);
+ if (io_result < 0) {
+ return io_result;
+ }
+
+ io_result = register_io_dev_memmap(&memmap_dev_con);
+ if (io_result < 0) {
+ return io_result;
+ }
+
+ /* Open connections to devices and cache the handles */
+ io_result = io_dev_open(fip_dev_con, (uintptr_t)NULL,
+ &fip_dev_handle);
+ if (io_result < 0) {
+ return io_result;
+ }
+
+ io_result = io_dev_open(memmap_dev_con, (uintptr_t)NULL,
+ &memmap_dev_handle);
+
+ return io_result;
+}
+
+void plat_arm_io_setup(void)
+{
+ int err;
+
+ err = arm_io_setup();
+ if (err < 0) {
+ panic();
+ }
+}
+
+int plat_arm_get_alt_image_source(
+ unsigned int image_id __unused,
+ uintptr_t *dev_handle __unused,
+ uintptr_t *image_spec __unused)
+{
+ /* By default do not try an alternative */
+ return -ENOENT;
+}
+
+/* Return an IO device handle and specification which can be used to access
+ * an image. Use this to enforce platform load policy */
+int plat_get_image_source(unsigned int image_id, uintptr_t *dev_handle,
+ uintptr_t *image_spec)
+{
+ int result;
+ const struct plat_io_policy *policy;
+
+ assert(image_id < MAX_NUMBER_IDS);
+
+ policy = FCONF_GET_PROPERTY(arm, io_policies, image_id);
+ result = policy->check(policy->image_spec);
+ if (result == 0) {
+ *image_spec = policy->image_spec;
+ *dev_handle = *(policy->dev_handle);
+ } else {
+ VERBOSE("Trying alternative IO\n");
+ result = plat_arm_get_alt_image_source(image_id, dev_handle,
+ image_spec);
+ }
+
+ return result;
+}
+
+/*
+ * See if a Firmware Image Package is available,
+ * by checking if TOC is valid or not.
+ */
+bool arm_io_is_toc_valid(void)
+{
+ return (io_dev_init(fip_dev_handle, (uintptr_t)FIP_IMAGE_ID) == 0);
+}
diff --git a/plat/arm/common/arm_io_storage.c b/plat/arm/common/arm_io_storage.c
index fc1eb490e..f5d8a414d 100644
--- a/plat/arm/common/arm_io_storage.c
+++ b/plat/arm/common/arm_io_storage.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -292,32 +292,41 @@ static int open_memmap(const uintptr_t spec)
}
-void arm_io_setup(void)
+int arm_io_setup(void)
{
int io_result;
io_result = register_io_dev_fip(&fip_dev_con);
- assert(io_result == 0);
+ if (io_result < 0) {
+ return io_result;
+ }
io_result = register_io_dev_memmap(&memmap_dev_con);
- assert(io_result == 0);
+ if (io_result < 0) {
+ return io_result;
+ }
/* Open connections to devices and cache the handles */
io_result = io_dev_open(fip_dev_con, (uintptr_t)NULL,
&fip_dev_handle);
- assert(io_result == 0);
+ if (io_result < 0) {
+ return io_result;
+ }
io_result = io_dev_open(memmap_dev_con, (uintptr_t)NULL,
&memmap_dev_handle);
- assert(io_result == 0);
- /* Ignore improbable errors in release builds */
- (void)io_result;
+ return io_result;
}
void plat_arm_io_setup(void)
{
- arm_io_setup();
+ int err;
+
+ err = arm_io_setup();
+ if (err < 0) {
+ panic();
+ }
}
int plat_arm_get_alt_image_source(
@@ -357,12 +366,8 @@ int plat_get_image_source(unsigned int image_id, uintptr_t *dev_handle,
* See if a Firmware Image Package is available,
* by checking if TOC is valid or not.
*/
-int arm_io_is_toc_valid(void)
+bool arm_io_is_toc_valid(void)
{
- int result;
-
- result = io_dev_init(fip_dev_handle, (uintptr_t)FIP_IMAGE_ID);
-
- return (result == 0);
+ return (io_dev_init(fip_dev_handle, (uintptr_t)FIP_IMAGE_ID) == 0);
}
diff --git a/plat/arm/common/fconf/arm_fconf_io.c b/plat/arm/common/fconf/arm_fconf_io.c
new file mode 100644
index 000000000..3c0586fd0
--- /dev/null
+++ b/plat/arm/common/fconf/arm_fconf_io.c
@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2019-2020, ARM Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+
+#include <common/debug.h>
+#include <common/fdt_wrappers.h>
+#include <drivers/io/io_storage.h>
+#include <lib/object_pool.h>
+#include <libfdt.h>
+#include <tools_share/firmware_image_package.h>
+
+#include <plat/arm/common/arm_fconf_getter.h>
+#include <plat/arm/common/arm_fconf_io_storage.h>
+#include <platform_def.h>
+
+const io_block_spec_t fip_block_spec = {
+ .offset = PLAT_ARM_FIP_BASE,
+ .length = PLAT_ARM_FIP_MAX_SIZE
+};
+
+const io_uuid_spec_t arm_uuid_spec[MAX_NUMBER_IDS] = {
+ [BL2_IMAGE_ID] = {UUID_TRUSTED_BOOT_FIRMWARE_BL2},
+ [TB_FW_CONFIG_ID] = {UUID_TB_FW_CONFIG},
+#if TRUSTED_BOARD_BOOT
+ [TRUSTED_BOOT_FW_CERT_ID] = {UUID_TRUSTED_BOOT_FW_CERT},
+#endif /* TRUSTED_BOARD_BOOT */
+};
+
+/* By default, ARM platforms load images from the FIP */
+struct plat_io_policy policies[MAX_NUMBER_IDS] = {
+ [FIP_IMAGE_ID] = {
+ &memmap_dev_handle,
+ (uintptr_t)&fip_block_spec,
+ open_memmap
+ },
+ [BL2_IMAGE_ID] = {
+ &fip_dev_handle,
+ (uintptr_t)&arm_uuid_spec[BL2_IMAGE_ID],
+ open_fip
+ },
+ [TB_FW_CONFIG_ID] = {
+ &fip_dev_handle,
+ (uintptr_t)&arm_uuid_spec[TB_FW_CONFIG_ID],
+ open_fip
+ },
+#if TRUSTED_BOARD_BOOT
+ [TRUSTED_BOOT_FW_CERT_ID] = {
+ &fip_dev_handle,
+ (uintptr_t)&arm_uuid_spec[TRUSTED_BOOT_FW_CERT_ID],
+ open_fip
+ },
+#endif /* TRUSTED_BOARD_BOOT */
+};
+
+#ifdef IMAGE_BL2
+
+#if TRUSTED_BOARD_BOOT
+#define FCONF_ARM_IO_UUID_NUMBER 19
+#else
+#define FCONF_ARM_IO_UUID_NUMBER 10
+#endif
+
+static io_uuid_spec_t fconf_arm_uuids[FCONF_ARM_IO_UUID_NUMBER];
+static OBJECT_POOL_ARRAY(fconf_arm_uuids_pool, fconf_arm_uuids);
+
+struct policies_load_info {
+ unsigned int image_id;
+ const char *name;
+};
+
+/* image id to property name table */
+static const struct policies_load_info load_info[FCONF_ARM_IO_UUID_NUMBER] = {
+ {SCP_BL2_IMAGE_ID, "scp_bl2_uuid"},
+ {BL31_IMAGE_ID, "bl31_uuid"},
+ {BL32_IMAGE_ID, "bl32_uuid"},
+ {BL32_EXTRA1_IMAGE_ID, "bl32_extra1_uuid"},
+ {BL32_EXTRA2_IMAGE_ID, "bl32_extra2_uuid"},
+ {BL33_IMAGE_ID, "bl33_uuid"},
+ {HW_CONFIG_ID, "hw_cfg_uuid"},
+ {SOC_FW_CONFIG_ID, "soc_fw_cfg_uuid"},
+ {TOS_FW_CONFIG_ID, "tos_fw_cfg_uuid"},
+ {NT_FW_CONFIG_ID, "nt_fw_cfg_uuid"},
+#if TRUSTED_BOARD_BOOT
+ {TRUSTED_KEY_CERT_ID, "t_key_cert_uuid"},
+ {SCP_FW_KEY_CERT_ID, "scp_fw_key_uuid"},
+ {SOC_FW_KEY_CERT_ID, "soc_fw_key_uuid"},
+ {TRUSTED_OS_FW_KEY_CERT_ID, "tos_fw_key_cert_uuid"},
+ {NON_TRUSTED_FW_KEY_CERT_ID, "nt_fw_key_cert_uuid"},
+ {SCP_FW_CONTENT_CERT_ID, "scp_fw_content_cert_uuid"},
+ {SOC_FW_CONTENT_CERT_ID, "soc_fw_content_cert_uuid"},
+ {TRUSTED_OS_FW_CONTENT_CERT_ID, "tos_fw_content_cert_uuid"},
+ {NON_TRUSTED_FW_CONTENT_CERT_ID, "nt_fw_content_cert_uuid"},
+#endif /* TRUSTED_BOARD_BOOT */
+};
+
+int fconf_populate_arm_io_policies(uintptr_t config)
+{
+ int err, node;
+ unsigned int i;
+
+ union uuid_helper_t uuid_helper;
+ io_uuid_spec_t *uuid_ptr;
+
+ /* As libfdt uses void *, we can't avoid this cast */
+ const void *dtb = (void *)config;
+
+ /* Assert the node offset point to "arm,io-fip-handle" compatible property */
+ const char *compatible_str = "arm,io-fip-handle";
+ node = fdt_node_offset_by_compatible(dtb, -1, compatible_str);
+ if (node < 0) {
+ ERROR("FCONF: Can't find %s compatible in dtb\n", compatible_str);
+ return node;
+ }
+
+ /* Locate the uuid cells and read the value for all the load info uuid */
+ for (i = 0; i < FCONF_ARM_IO_UUID_NUMBER; i++) {
+ uuid_ptr = pool_alloc(&fconf_arm_uuids_pool);
+ err = fdtw_read_array(dtb, node, load_info[i].name, 4, &uuid_helper.word);
+ if (err < 0) {
+ WARN("FCONF: Read cell failed for %s\n", load_info[i].name);
+ return err;
+ }
+
+ VERBOSE("FCONF: arm-io_policies.%s cell found with value = 0x%x 0x%x 0x%x 0x%x\n",
+ load_info[i].name,
+ uuid_helper.word[0], uuid_helper.word[1],
+ uuid_helper.word[2], uuid_helper.word[3]);
+
+ uuid_ptr->uuid = uuid_helper.uuid_struct;
+ policies[load_info[i].image_id].image_spec = (uintptr_t)uuid_ptr;
+ policies[load_info[i].image_id].dev_handle = &fip_dev_handle;
+ policies[load_info[i].image_id].check = open_fip;
+ }
+ return 0;
+}
+
+FCONF_REGISTER_POPULATOR(arm_io, fconf_populate_arm_io_policies);
+
+#endif /* IMAGE_BL2 */