1 /* SPDX-License-Identifier: BSD-2-Clause */ 2 /* 3 * Copyright (c) 2015-2020, Linaro Limited 4 * Copyright (c) 2021-2023, Arm Limited 5 */ 6 #ifndef __KERNEL_BOOT_H 7 #define __KERNEL_BOOT_H 8 9 #include <initcall.h> 10 #include <types_ext.h> 11 12 /* 13 * struct boot_embdata - Embedded boot data 14 * @total_len: Total length of the embedded boot data 15 * @num_blobs: Number of blobs in the embedded boot data, always 2 even if 16 * one blob is empty 17 * @hashes_offset: Offset of hashes from start of this struct 18 * @hashes_len: Length of hashes 19 * @reloc_offset: Offset of reloc from start of this struct 20 * @reloc_len: Length of reloc 21 * 22 * This struct is initialized by scripts/gen_tee_bin.py and must be kept 23 * in sync with that script. The struct and the following data is loaded 24 * at different addresses at boot depending on CFG_WITH_PAGER. 25 * 26 * If configured with CFG_WITH_PAGER=y the struct with data is following 27 * init part, this is together with the init part moved by the primary CPU 28 * so it ends up at __init_end. Whatever need to be saved for later need to 29 * be copied to a safe location in init_runtime(). 30 * 31 * If configured with CFG_WITH_PAGER=n following the struct with data is 32 * __data_end, this is moved by the primary CPU so it ends up at __end. 33 */ 34 struct boot_embdata { 35 uint32_t total_len; 36 uint32_t num_blobs; 37 uint32_t hashes_offset; 38 uint32_t hashes_len; 39 uint32_t reloc_offset; 40 uint32_t reloc_len; 41 }; 42 43 extern const struct core_mmu_config boot_mmu_config; 44 45 void boot_init_primary_early(void); 46 void boot_init_primary_late(unsigned long fdt, unsigned long manifest); 47 void boot_init_memtag(void); 48 void boot_save_args(unsigned long a0, unsigned long a1, unsigned long a2, 49 unsigned long a3, unsigned long a4); 50 51 void __panic_at_smc_return(void) __noreturn; 52 53 #if defined(CFG_WITH_ARM_TRUSTED_FW) 54 unsigned long cpu_on_handler(unsigned long a0, unsigned long a1); 55 unsigned long boot_cpu_on_handler(unsigned long a0, unsigned long a1); 56 #else 57 void boot_init_secondary(unsigned long nsec_entry); 58 #endif 59 60 void boot_primary_init_intc(void); 61 void boot_secondary_init_intc(void); 62 63 void init_sec_mon(unsigned long nsec_entry); 64 void init_tee_runtime(void); 65 66 /* weak routines eventually overridden by platform */ 67 void plat_cpu_reset_early(void); 68 void plat_primary_init_early(void); 69 unsigned long plat_get_aslr_seed(void); 70 unsigned long plat_get_freq(void); 71 #if defined(_CFG_CORE_STACK_PROTECTOR) || defined(CFG_WITH_STACK_CANARIES) 72 /* 73 * plat_get_random_stack_canaries() - Get random values for stack canaries. 74 * @buf: Pointer to the buffer where to store canaries 75 * @ncan: The number of canaries to generate. 76 * @size: The size (in bytes) of each canary. 77 * 78 * This function has a __weak default implementation. 79 */ 80 void plat_get_random_stack_canaries(void *buf, size_t ncan, size_t size); 81 #endif 82 void arm_cl2_config(vaddr_t pl310); 83 void arm_cl2_enable(vaddr_t pl310); 84 85 #if defined(CFG_BOOT_SECONDARY_REQUEST) 86 void boot_set_core_ns_entry(size_t core_idx, uintptr_t entry, 87 uintptr_t context_id); 88 89 int boot_core_release(size_t core_idx, paddr_t entry); 90 struct ns_entry_context *boot_core_hpen(void); 91 #endif 92 93 /* Returns TOS_FW_CONFIG DTB or SP manifest DTB if present, otherwise NULL */ 94 void *get_manifest_dt(void); 95 96 /* 97 * get_aslr_seed() - return a random seed for core ASLR 98 * 99 * This function has a __weak default implementation. 100 */ 101 unsigned long get_aslr_seed(void); 102 103 #endif /* __KERNEL_BOOT_H */ 104