mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
synced 2025-04-24 13:55:56 +00:00
c2ad38ce4f
This patch provides support for using the scatterfile format as the linker script with the 'armlink' linker for Tegra platforms. In order to enable the scatterfile usage the following changes have been made: * provide mapping for ld.S symbols in bl_common.h * include bl_common.h from all the affected files * update the makefile rules to use the scatterfile and armlink to compile BL31 * update pubsub.h to add sections to the scatterfile NOTE: THIS CHANGE HAS BEEN VERIFIED WITH TEGRA PLATFORMS ONLY. Change-Id: I7bb78b991c97d74a842e5635c74cb0b18e0fce67 Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
254 lines
8.9 KiB
C
254 lines
8.9 KiB
C
/*
|
|
* Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#ifndef BL_COMMON_H
|
|
#define BL_COMMON_H
|
|
|
|
#include <common/ep_info.h>
|
|
#include <common/param_header.h>
|
|
#include <lib/utils_def.h>
|
|
|
|
#define UP U(1)
|
|
#define DOWN U(0)
|
|
|
|
/*******************************************************************************
|
|
* Constants to identify the location of a memory region in a given memory
|
|
* layout.
|
|
******************************************************************************/
|
|
#define TOP U(0x1)
|
|
#define BOTTOM U(0x0)
|
|
|
|
/*
|
|
* The following are used for image state attributes.
|
|
* Image can only be in one of the following state.
|
|
*/
|
|
#define IMAGE_STATE_RESET U(0)
|
|
#define IMAGE_STATE_COPIED U(1)
|
|
#define IMAGE_STATE_COPYING U(2)
|
|
#define IMAGE_STATE_AUTHENTICATED U(3)
|
|
#define IMAGE_STATE_EXECUTED U(4)
|
|
#define IMAGE_STATE_INTERRUPTED U(5)
|
|
|
|
#define IMAGE_ATTRIB_SKIP_LOADING U(0x02)
|
|
#define IMAGE_ATTRIB_PLAT_SETUP U(0x04)
|
|
|
|
#define INVALID_IMAGE_ID U(0xFFFFFFFF)
|
|
|
|
/*******************************************************************************
|
|
* Constants to indicate type of exception to the common exception handler.
|
|
******************************************************************************/
|
|
#define SYNC_EXCEPTION_SP_EL0 U(0x0)
|
|
#define IRQ_SP_EL0 U(0x1)
|
|
#define FIQ_SP_EL0 U(0x2)
|
|
#define SERROR_SP_EL0 U(0x3)
|
|
#define SYNC_EXCEPTION_SP_ELX U(0x4)
|
|
#define IRQ_SP_ELX U(0x5)
|
|
#define FIQ_SP_ELX U(0x6)
|
|
#define SERROR_SP_ELX U(0x7)
|
|
#define SYNC_EXCEPTION_AARCH64 U(0x8)
|
|
#define IRQ_AARCH64 U(0x9)
|
|
#define FIQ_AARCH64 U(0xa)
|
|
#define SERROR_AARCH64 U(0xb)
|
|
#define SYNC_EXCEPTION_AARCH32 U(0xc)
|
|
#define IRQ_AARCH32 U(0xd)
|
|
#define FIQ_AARCH32 U(0xe)
|
|
#define SERROR_AARCH32 U(0xf)
|
|
|
|
/*
|
|
* Mapping to connect linker symbols from .ld.S with their counterparts
|
|
* from .scat for the BL31 image
|
|
*/
|
|
#if defined(USE_ARM_LINK)
|
|
#define __BL31_END__ Load$$LR$$LR_END$$Base
|
|
#define __BSS_START__ Load$$LR$$LR_BSS$$Base
|
|
#define __BSS_END__ Load$$LR$$LR_BSS$$Limit
|
|
#define __BSS_SIZE__ Load$$LR$$LR_BSS$$Length
|
|
#define __COHERENT_RAM_START__ Load$$LR$$LR_COHERENT_RAM$$Base
|
|
#define __COHERENT_RAM_END_UNALIGNED__ Load$$__COHERENT_RAM_EPILOGUE_UNALIGNED__$$Base
|
|
#define __COHERENT_RAM_END__ Load$$LR$$LR_COHERENT_RAM$$Limit
|
|
#define __COHERENT_RAM_UNALIGNED_SIZE__ Load$$__COHERENT_RAM__$$Length
|
|
#define __CPU_OPS_START__ Load$$__CPU_OPS__$$Base
|
|
#define __CPU_OPS_END__ Load$$__CPU_OPS__$$Limit
|
|
#define __DATA_START__ Load$$__DATA__$$Base
|
|
#define __DATA_END__ Load$$__DATA__$$Limit
|
|
#define __GOT_START__ Load$$__GOT__$$Base
|
|
#define __GOT_END__ Load$$__GOT__$$Limit
|
|
#define __PERCPU_BAKERY_LOCK_START__ Load$$__BAKERY_LOCKS__$$Base
|
|
#define __PERCPU_BAKERY_LOCK_END__ Load$$__BAKERY_LOCKS_EPILOGUE__$$Base
|
|
#define __PMF_SVC_DESCS_START__ Load$$__PMF_SVC_DESCS__$$Base
|
|
#define __PMF_SVC_DESCS_END__ Load$$__PMF_SVC_DESCS__$$Limit
|
|
#define __PMF_TIMESTAMP_START__ Load$$__PMF_TIMESTAMP__$$Base
|
|
#define __PMF_TIMESTAMP_END__ Load$$__PER_CPU_TIMESTAMPS__$$Limit
|
|
#define __PMF_PERCPU_TIMESTAMP_END__ Load$$__PMF_TIMESTAMP_EPILOGUE__$$Base
|
|
#define __RELA_END__ Load$$__RELA__$$Limit
|
|
#define __RELA_START__ Load$$__RELA__$$Base
|
|
#define __RODATA_START__ Load$$__RODATA__$$Base
|
|
#define __RODATA_END__ Load$$__RODATA_EPILOGUE__$$Base
|
|
#define __RT_SVC_DESCS_START__ Load$$__RT_SVC_DESCS__$$Base
|
|
#define __RT_SVC_DESCS_END__ Load$$__RT_SVC_DESCS__$$Limit
|
|
#define __RW_START__ Load$$LR$$LR_RW_DATA$$Base
|
|
#define __RW_END__ Load$$LR$$LR_END$$Base
|
|
#define __SPM_SHIM_EXCEPTIONS_START__ Load$$__SPM_SHIM_EXCEPTIONS__$$Base
|
|
#define __SPM_SHIM_EXCEPTIONS_END__ Load$$__SPM_SHIM_EXCEPTIONS_EPILOGUE__$$Base
|
|
#define __STACKS_START__ Load$$__STACKS__$$Base
|
|
#define __STACKS_END__ Load$$__STACKS__$$Limit
|
|
#define __TEXT_START__ Load$$__TEXT__$$Base
|
|
#define __TEXT_END__ Load$$__TEXT_EPILOGUE__$$Base
|
|
#endif /* USE_ARM_LINK */
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#include <lib/cassert.h>
|
|
|
|
/*
|
|
* Declarations of linker defined symbols to help determine memory layout of
|
|
* BL images
|
|
*/
|
|
#if SEPARATE_CODE_AND_RODATA
|
|
IMPORT_SYM(uintptr_t, __TEXT_START__, BL_CODE_BASE);
|
|
IMPORT_SYM(uintptr_t, __TEXT_END__, BL_CODE_END);
|
|
IMPORT_SYM(uintptr_t, __RODATA_START__, BL_RO_DATA_BASE);
|
|
IMPORT_SYM(uintptr_t, __RODATA_END__, BL_RO_DATA_END);
|
|
#else
|
|
IMPORT_SYM(uintptr_t, __RO_START__, BL_CODE_BASE);
|
|
IMPORT_SYM(uintptr_t, __RO_END__, BL_CODE_END);
|
|
#endif
|
|
|
|
#if defined(IMAGE_BL1)
|
|
IMPORT_SYM(uintptr_t, __BL1_ROM_END__, BL1_ROM_END);
|
|
|
|
IMPORT_SYM(uintptr_t, __BL1_RAM_START__, BL1_RAM_BASE);
|
|
IMPORT_SYM(uintptr_t, __BL1_RAM_END__, BL1_RAM_LIMIT);
|
|
#elif defined(IMAGE_BL2)
|
|
IMPORT_SYM(uintptr_t, __BL2_END__, BL2_END);
|
|
#elif defined(IMAGE_BL2U)
|
|
IMPORT_SYM(uintptr_t, __BL2U_END__, BL2U_END);
|
|
#elif defined(IMAGE_BL31)
|
|
IMPORT_SYM(uintptr_t, __BL31_START__, BL31_START);
|
|
IMPORT_SYM(uintptr_t, __BL31_END__, BL31_END);
|
|
#elif defined(IMAGE_BL32)
|
|
IMPORT_SYM(uintptr_t, __BL32_END__, BL32_END);
|
|
#endif /* IMAGE_BLX */
|
|
|
|
/* The following symbols are only exported from the BL2 at EL3 linker script. */
|
|
#if BL2_IN_XIP_MEM && defined(IMAGE_BL2)
|
|
IMPORT_SYM(uintptr_t, __BL2_ROM_END__, BL2_ROM_END);
|
|
|
|
IMPORT_SYM(uintptr_t, __BL2_RAM_START__, BL2_RAM_BASE);
|
|
IMPORT_SYM(uintptr_t, __BL2_RAM_END__, BL2_RAM_END);
|
|
#endif /* BL2_IN_XIP_MEM */
|
|
|
|
/*
|
|
* The next 2 constants identify the extents of the coherent memory region.
|
|
* These addresses are used by the MMU setup code and therefore they must be
|
|
* page-aligned. It is the responsibility of the linker script to ensure that
|
|
* __COHERENT_RAM_START__ and __COHERENT_RAM_END__ linker symbols refer to
|
|
* page-aligned addresses.
|
|
*/
|
|
#if USE_COHERENT_MEM
|
|
IMPORT_SYM(uintptr_t, __COHERENT_RAM_START__, BL_COHERENT_RAM_BASE);
|
|
IMPORT_SYM(uintptr_t, __COHERENT_RAM_END__, BL_COHERENT_RAM_END);
|
|
#endif
|
|
|
|
/*******************************************************************************
|
|
* Structure used for telling the next BL how much of a particular type of
|
|
* memory is available for its use and how much is already used.
|
|
******************************************************************************/
|
|
typedef struct meminfo {
|
|
uintptr_t total_base;
|
|
size_t total_size;
|
|
} meminfo_t;
|
|
|
|
/*****************************************************************************
|
|
* Image info binary provides information from the image loader that
|
|
* can be used by the firmware to manage available trusted RAM.
|
|
* More advanced firmware image formats can provide additional
|
|
* information that enables optimization or greater flexibility in the
|
|
* common firmware code
|
|
*****************************************************************************/
|
|
typedef struct image_info {
|
|
param_header_t h;
|
|
uintptr_t image_base; /* physical address of base of image */
|
|
uint32_t image_size; /* bytes read from image file */
|
|
uint32_t image_max_size;
|
|
} image_info_t;
|
|
|
|
/*****************************************************************************
|
|
* The image descriptor struct definition.
|
|
*****************************************************************************/
|
|
typedef struct image_desc {
|
|
/* Contains unique image id for the image. */
|
|
unsigned int image_id;
|
|
/*
|
|
* This member contains Image state information.
|
|
* Refer IMAGE_STATE_XXX defined above.
|
|
*/
|
|
unsigned int state;
|
|
uint32_t copied_size; /* image size copied in blocks */
|
|
image_info_t image_info;
|
|
entry_point_info_t ep_info;
|
|
} image_desc_t;
|
|
|
|
/* BL image node in the BL image loading sequence */
|
|
typedef struct bl_load_info_node {
|
|
unsigned int image_id;
|
|
image_info_t *image_info;
|
|
struct bl_load_info_node *next_load_info;
|
|
} bl_load_info_node_t;
|
|
|
|
/* BL image head node in the BL image loading sequence */
|
|
typedef struct bl_load_info {
|
|
param_header_t h;
|
|
bl_load_info_node_t *head;
|
|
} bl_load_info_t;
|
|
|
|
/* BL image node in the BL image execution sequence */
|
|
typedef struct bl_params_node {
|
|
unsigned int image_id;
|
|
image_info_t *image_info;
|
|
entry_point_info_t *ep_info;
|
|
struct bl_params_node *next_params_info;
|
|
} bl_params_node_t;
|
|
|
|
/*
|
|
* BL image head node in the BL image execution sequence
|
|
* It is also used to pass information to next BL image.
|
|
*/
|
|
typedef struct bl_params {
|
|
param_header_t h;
|
|
bl_params_node_t *head;
|
|
} bl_params_t;
|
|
|
|
/*******************************************************************************
|
|
* Function & variable prototypes
|
|
******************************************************************************/
|
|
int load_auth_image(unsigned int image_id, image_info_t *image_data);
|
|
|
|
#if TRUSTED_BOARD_BOOT && defined(DYN_DISABLE_AUTH)
|
|
/*
|
|
* API to dynamically disable authentication. Only meant for development
|
|
* systems.
|
|
*/
|
|
void dyn_disable_auth(void);
|
|
#endif
|
|
|
|
extern const char build_message[];
|
|
extern const char version_string[];
|
|
|
|
void print_entry_point_info(const entry_point_info_t *ep_info);
|
|
uintptr_t page_align(uintptr_t value, unsigned dir);
|
|
|
|
struct mmap_region;
|
|
|
|
void setup_page_tables(const struct mmap_region *bl_regions,
|
|
const struct mmap_region *plat_regions);
|
|
|
|
#endif /*__ASSEMBLY__*/
|
|
|
|
#endif /* BL_COMMON_H */
|