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/*
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* Copyright (c) 2015-2022, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef COMMON_DEF_H
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#define COMMON_DEF_H
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#include <common/bl_common.h>
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#include <lib/utils_def.h>
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#include <lib/xlat_tables/xlat_tables_defs.h>
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Add descriptor based image management support in BL1
As of now BL1 loads and execute BL2 based on hard coded information
provided in BL1. But due to addition of support for upcoming Firmware
Update feature, BL1 now require more flexible approach to load and
run different images using information provided by the platform.
This patch adds new mechanism to load and execute images based on
platform provided image id's. BL1 now queries the platform to fetch
the image id of the next image to be loaded and executed. In order
to achieve this, a new struct image_desc_t was added which holds the
information about images, such as: ep_info and image_info.
This patch introduces following platform porting functions:
unsigned int bl1_plat_get_next_image_id(void);
This is used to identify the next image to be loaded
and executed by BL1.
struct image_desc *bl1_plat_get_image_desc(unsigned int image_id);
This is used to retrieve the image_desc for given image_id.
void bl1_plat_set_ep_info(unsigned int image_id,
struct entry_point_info *ep_info);
This function allows platforms to update ep_info for given
image_id.
The plat_bl1_common.c file provides default weak implementations of
all above functions, the `bl1_plat_get_image_desc()` always return
BL2 image descriptor, the `bl1_plat_get_next_image_id()` always return
BL2 image ID and `bl1_plat_set_ep_info()` is empty and just returns.
These functions gets compiled into all BL1 platforms by default.
Platform setup in BL1, using `bl1_platform_setup()`, is now done
_after_ the initialization of authentication module. This change
provides the opportunity to use authentication while doing the
platform setup in BL1.
In order to store secure/non-secure context, BL31 uses percpu_data[]
to store context pointer for each core. In case of BL1 only the
primary CPU will be active hence percpu_data[] is not required to
store the context pointer.
This patch introduce bl1_cpu_context[] and bl1_cpu_context_ptr[] to
store the context and context pointers respectively. It also also
re-defines cm_get_context() and cm_set_context() for BL1 in
bl1/bl1_context_mgmt.c.
BL1 now follows the BL31 pattern of using SP_EL0 for the C runtime
environment, to support resuming execution from a previously saved
context.
NOTE: THE `bl1_plat_set_bl2_ep_info()` PLATFORM PORTING FUNCTION IS
NO LONGER CALLED BY BL1 COMMON CODE. PLATFORMS THAT OVERRIDE
THIS FUNCTION MAY NEED TO IMPLEMENT `bl1_plat_set_ep_info()`
INSTEAD TO MAINTAIN EXISTING BEHAVIOUR.
Change-Id: Ieee4c124b951c2e9bc1c1013fa2073221195d881
9 years ago
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#include <platform_def.h>
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#define SZ_32 U(0x00000020)
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#define SZ_64 U(0x00000040)
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#define SZ_128 U(0x00000080)
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#define SZ_256 U(0x00000100)
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#define SZ_512 U(0x00000200)
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#define SZ_1K U(0x00000400)
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#define SZ_2K U(0x00000800)
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#define SZ_4K U(0x00001000)
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#define SZ_8K U(0x00002000)
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#define SZ_16K U(0x00004000)
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#define SZ_32K U(0x00008000)
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#define SZ_64K U(0x00010000)
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#define SZ_128K U(0x00020000)
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#define SZ_256K U(0x00040000)
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#define SZ_512K U(0x00080000)
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#define SZ_1M U(0x00100000)
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#define SZ_2M U(0x00200000)
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#define SZ_4M U(0x00400000)
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#define SZ_8M U(0x00800000)
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#define SZ_16M U(0x01000000)
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#define SZ_32M U(0x02000000)
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#define SZ_64M U(0x04000000)
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#define SZ_128M U(0x08000000)
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#define SZ_256M U(0x10000000)
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#define SZ_512M U(0x20000000)
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#define SZ_1G U(0x40000000)
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#define SZ_2G U(0x80000000)
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/******************************************************************************
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* Required platform porting definitions that are expected to be common to
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* all platforms
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*****************************************************************************/
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/*
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* Platform binary types for linking
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*/
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#ifdef __aarch64__
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#define PLATFORM_LINKER_FORMAT "elf64-littleaarch64"
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#define PLATFORM_LINKER_ARCH aarch64
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#else
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#define PLATFORM_LINKER_FORMAT "elf32-littlearm"
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#define PLATFORM_LINKER_ARCH arm
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#endif /* __aarch64__ */
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/*
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* Generic platform constants
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*/
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#define FIRMWARE_WELCOME_STR "Booting Trusted Firmware\n"
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#define BL2_IMAGE_DESC { \
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.image_id = BL2_IMAGE_ID, \
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SET_STATIC_PARAM_HEAD(image_info, PARAM_EP, \
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VERSION_2, image_info_t, 0), \
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.image_info.image_base = BL2_BASE, \
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.image_info.image_max_size = BL2_LIMIT - BL2_BASE,\
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SET_STATIC_PARAM_HEAD(ep_info, PARAM_EP, \
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VERSION_2, entry_point_info_t, SECURE | EXECUTABLE),\
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.ep_info.pc = BL2_BASE, \
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}
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Add descriptor based image management support in BL1
As of now BL1 loads and execute BL2 based on hard coded information
provided in BL1. But due to addition of support for upcoming Firmware
Update feature, BL1 now require more flexible approach to load and
run different images using information provided by the platform.
This patch adds new mechanism to load and execute images based on
platform provided image id's. BL1 now queries the platform to fetch
the image id of the next image to be loaded and executed. In order
to achieve this, a new struct image_desc_t was added which holds the
information about images, such as: ep_info and image_info.
This patch introduces following platform porting functions:
unsigned int bl1_plat_get_next_image_id(void);
This is used to identify the next image to be loaded
and executed by BL1.
struct image_desc *bl1_plat_get_image_desc(unsigned int image_id);
This is used to retrieve the image_desc for given image_id.
void bl1_plat_set_ep_info(unsigned int image_id,
struct entry_point_info *ep_info);
This function allows platforms to update ep_info for given
image_id.
The plat_bl1_common.c file provides default weak implementations of
all above functions, the `bl1_plat_get_image_desc()` always return
BL2 image descriptor, the `bl1_plat_get_next_image_id()` always return
BL2 image ID and `bl1_plat_set_ep_info()` is empty and just returns.
These functions gets compiled into all BL1 platforms by default.
Platform setup in BL1, using `bl1_platform_setup()`, is now done
_after_ the initialization of authentication module. This change
provides the opportunity to use authentication while doing the
platform setup in BL1.
In order to store secure/non-secure context, BL31 uses percpu_data[]
to store context pointer for each core. In case of BL1 only the
primary CPU will be active hence percpu_data[] is not required to
store the context pointer.
This patch introduce bl1_cpu_context[] and bl1_cpu_context_ptr[] to
store the context and context pointers respectively. It also also
re-defines cm_get_context() and cm_set_context() for BL1 in
bl1/bl1_context_mgmt.c.
BL1 now follows the BL31 pattern of using SP_EL0 for the C runtime
environment, to support resuming execution from a previously saved
context.
NOTE: THE `bl1_plat_set_bl2_ep_info()` PLATFORM PORTING FUNCTION IS
NO LONGER CALLED BY BL1 COMMON CODE. PLATFORMS THAT OVERRIDE
THIS FUNCTION MAY NEED TO IMPLEMENT `bl1_plat_set_ep_info()`
INSTEAD TO MAINTAIN EXISTING BEHAVIOUR.
Change-Id: Ieee4c124b951c2e9bc1c1013fa2073221195d881
9 years ago
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/*
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* The following constants identify the extents of the code & read-only data
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* regions. These addresses are used by the MMU setup code and therefore they
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* must be page-aligned.
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*
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* When the code and read-only data are mapped as a single atomic section
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* (i.e. when SEPARATE_CODE_AND_RODATA=0) then we treat the whole section as
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* code by specifying the read-only data section as empty.
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*
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* BL1 is different than the other images in the sense that its read-write data
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* originally lives in Trusted ROM and needs to be relocated in Trusted SRAM at
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* run-time. Therefore, the read-write data in ROM can be mapped with the same
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* memory attributes as the read-only data region. For this reason, BL1 uses
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* different macros.
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*
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* Note that BL1_ROM_END is not necessarily aligned on a page boundary as it
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* just points to the end of BL1's actual content in Trusted ROM. Therefore it
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* needs to be rounded up to the next page size in order to map the whole last
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* page of it with the right memory attributes.
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*/
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#if SEPARATE_CODE_AND_RODATA
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#define BL1_CODE_END BL_CODE_END
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#define BL1_RO_DATA_BASE BL_RO_DATA_BASE
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#define BL1_RO_DATA_END round_up(BL1_ROM_END, PAGE_SIZE)
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#if BL2_IN_XIP_MEM
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#define BL2_CODE_END BL_CODE_END
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#define BL2_RO_DATA_BASE BL_RO_DATA_BASE
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#define BL2_RO_DATA_END round_up(BL2_ROM_END, PAGE_SIZE)
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#endif /* BL2_IN_XIP_MEM */
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#else
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#define BL_RO_DATA_BASE UL(0)
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#define BL_RO_DATA_END UL(0)
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#define BL1_CODE_END round_up(BL1_ROM_END, PAGE_SIZE)
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#if BL2_IN_XIP_MEM
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#define BL2_RO_DATA_BASE UL(0)
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#define BL2_RO_DATA_END UL(0)
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#define BL2_CODE_END round_up(BL2_ROM_END, PAGE_SIZE)
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#endif /* BL2_IN_XIP_MEM */
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#endif /* SEPARATE_CODE_AND_RODATA */
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#if MEASURED_BOOT
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/*
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* Start critical data Ids from 2^32/2 reserving Ids from 0 to (2^32/2 - 1)
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* for Images, It is a critical data Id base for all platforms.
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*/
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#define CRITICAL_DATA_ID_BASE U(0x80000000)
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#endif /* MEASURED_BOOT */
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#endif /* COMMON_DEF_H */
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