/* * Copyright (c) 2013-2017, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ #ifndef __PLATFORM_H__ #define __PLATFORM_H__ #include #include #include /******************************************************************************* * Forward declarations ******************************************************************************/ struct auth_img_desc_s; struct meminfo; struct image_info; struct entry_point_info; struct bl31_params; struct image_desc; struct bl_load_info; struct bl_params; /******************************************************************************* * plat_get_rotpk_info() flags ******************************************************************************/ #define ROTPK_IS_HASH (1 << 0) /* Flag used to skip verification of the certificate ROTPK while the platform ROTPK is not deployed */ #define ROTPK_NOT_DEPLOYED (1 << 1) /******************************************************************************* * Function declarations ******************************************************************************/ /******************************************************************************* * Mandatory common functions ******************************************************************************/ unsigned long long plat_get_syscnt_freq(void) __deprecated; unsigned int plat_get_syscnt_freq2(void); int plat_get_image_source(unsigned int image_id, uintptr_t *dev_handle, uintptr_t *image_spec); uintptr_t plat_get_ns_image_entrypoint(void); unsigned int plat_my_core_pos(void); int plat_core_pos_by_mpidr(u_register_t mpidr); #if STACK_PROTECTOR_ENABLED /* * Return a new value to be used for the stack protection's canary. * * Ideally, this value is a random number that is impossible to predict by an * attacker. */ u_register_t plat_get_stack_protector_canary(void); #endif /* STACK_PROTECTOR_ENABLED */ /******************************************************************************* * Mandatory interrupt management functions ******************************************************************************/ uint32_t plat_ic_get_pending_interrupt_id(void); uint32_t plat_ic_get_pending_interrupt_type(void); uint32_t plat_ic_acknowledge_interrupt(void); uint32_t plat_ic_get_interrupt_type(uint32_t id); void plat_ic_end_of_interrupt(uint32_t id); uint32_t plat_interrupt_type_to_line(uint32_t type, uint32_t security_state); /******************************************************************************* * Optional interrupt management functions, depending on chosen EL3 components. ******************************************************************************/ unsigned int plat_ic_get_running_priority(void); int plat_ic_is_spi(unsigned int id); int plat_ic_is_ppi(unsigned int id); int plat_ic_is_sgi(unsigned int id); unsigned int plat_ic_get_interrupt_active(unsigned int id); void plat_ic_disable_interrupt(unsigned int id); void plat_ic_enable_interrupt(unsigned int id); int plat_ic_has_interrupt_type(unsigned int type); void plat_ic_set_interrupt_type(unsigned int id, unsigned int type); void plat_ic_set_interrupt_priority(unsigned int id, unsigned int priority); void plat_ic_raise_el3_sgi(int sgi_num, u_register_t target); /******************************************************************************* * Optional common functions (may be overridden) ******************************************************************************/ uintptr_t plat_get_my_stack(void); void plat_report_exception(unsigned int exception_type); int plat_crash_console_init(void); int plat_crash_console_putc(int c); int plat_crash_console_flush(void); void plat_error_handler(int err) __dead2; void plat_panic_handler(void) __dead2; const char *plat_log_get_prefix(unsigned int log_level); /******************************************************************************* * Mandatory BL1 functions ******************************************************************************/ void bl1_early_platform_setup(void); void bl1_plat_arch_setup(void); void bl1_platform_setup(void); struct meminfo *bl1_plat_sec_mem_layout(void); /* * The following function is mandatory when the * firmware update feature is used. */ int bl1_plat_mem_check(uintptr_t mem_base, unsigned int mem_size, unsigned int flags); /******************************************************************************* * Optional BL1 functions (may be overridden) ******************************************************************************/ void bl1_init_bl2_mem_layout(const struct meminfo *bl1_mem_layout, struct meminfo *bl2_mem_layout); /* * The following functions are used for image loading process in BL1. */ void bl1_plat_set_ep_info(unsigned int image_id, struct entry_point_info *ep_info); /* * The following functions are mandatory when firmware update * feature is used and optional otherwise. */ unsigned int bl1_plat_get_next_image_id(void); struct image_desc *bl1_plat_get_image_desc(unsigned int image_id); /* * The following functions are used by firmware update * feature and may optionally be overridden. */ __dead2 void bl1_plat_fwu_done(void *client_cookie, void *reserved); /******************************************************************************* * Mandatory BL2 functions ******************************************************************************/ void bl2_early_platform_setup(struct meminfo *mem_layout); void bl2_plat_arch_setup(void); void bl2_platform_setup(void); struct meminfo *bl2_plat_sec_mem_layout(void); #if LOAD_IMAGE_V2 /* * This function can be used by the platforms to update/use image * information for given `image_id`. */ int bl2_plat_handle_post_image_load(unsigned int image_id); #else /* LOAD_IMAGE_V2 */ /* * This function returns a pointer to the shared memory that the platform has * kept aside to pass trusted firmware related information that BL31 * could need */ struct bl31_params *bl2_plat_get_bl31_params(void); /* * This function returns a pointer to the shared memory that the platform * has kept to point to entry point information of BL31 to BL2 */ struct entry_point_info *bl2_plat_get_bl31_ep_info(void); /* * This function flushes to main memory all the params that are * passed to BL31 */ void bl2_plat_flush_bl31_params(void); /* * The next 2 functions allow the platform to change the entrypoint information * for the mandatory 3rd level BL images, BL31 and BL33. This is done after * BL2 has loaded those images into memory but before BL31 is executed. */ void bl2_plat_set_bl31_ep_info(struct image_info *image, struct entry_point_info *ep); void bl2_plat_set_bl33_ep_info(struct image_info *image, struct entry_point_info *ep); /* Gets the memory layout for BL33 */ void bl2_plat_get_bl33_meminfo(struct meminfo *mem_info); /******************************************************************************* * Conditionally mandatory BL2 functions: must be implemented if SCP_BL2 image * is supported ******************************************************************************/ /* Gets the memory layout for SCP_BL2 */ void bl2_plat_get_scp_bl2_meminfo(struct meminfo *mem_info); /* * This function is called after loading SCP_BL2 image and it is used to perform * any platform-specific actions required to handle the SCP firmware. */ int bl2_plat_handle_scp_bl2(struct image_info *scp_bl2_image_info); /******************************************************************************* * Conditionally mandatory BL2 functions: must be implemented if BL32 image * is supported ******************************************************************************/ void bl2_plat_set_bl32_ep_info(struct image_info *image, struct entry_point_info *ep); /* Gets the memory layout for BL32 */ void bl2_plat_get_bl32_meminfo(struct meminfo *mem_info); #endif /* LOAD_IMAGE_V2 */ /******************************************************************************* * Optional BL2 functions (may be overridden) ******************************************************************************/ /******************************************************************************* * Mandatory BL2U functions. ******************************************************************************/ void bl2u_early_platform_setup(struct meminfo *mem_layout, void *plat_info); void bl2u_plat_arch_setup(void); void bl2u_platform_setup(void); /******************************************************************************* * Conditionally mandatory BL2U functions for CSS platforms. ******************************************************************************/ /* * This function is used to perform any platform-specific actions required to * handle the BL2U_SCP firmware. */ int bl2u_plat_handle_scp_bl2u(void); /******************************************************************************* * Mandatory BL31 functions ******************************************************************************/ #if LOAD_IMAGE_V2 void bl31_early_platform_setup(void *from_bl2, void *plat_params_from_bl2); #else void bl31_early_platform_setup(struct bl31_params *from_bl2, void *plat_params_from_bl2); #endif void bl31_plat_arch_setup(void); void bl31_platform_setup(void); void bl31_plat_runtime_setup(void); struct entry_point_info *bl31_plat_get_next_image_ep_info(uint32_t type); /******************************************************************************* * Mandatory PSCI functions (BL31) ******************************************************************************/ int plat_setup_psci_ops(uintptr_t sec_entrypoint, const struct plat_psci_ops **); const unsigned char *plat_get_power_domain_tree_desc(void); /******************************************************************************* * Optional PSCI functions (BL31). ******************************************************************************/ void plat_psci_stat_accounting_start(const psci_power_state_t *state_info); void plat_psci_stat_accounting_stop(const psci_power_state_t *state_info); u_register_t plat_psci_stat_get_residency(unsigned int lvl, const psci_power_state_t *state_info, int last_cpu_index); plat_local_state_t plat_get_target_pwr_state(unsigned int lvl, const plat_local_state_t *states, unsigned int ncpu); /******************************************************************************* * Optional BL31 functions (may be overridden) ******************************************************************************/ void bl31_plat_enable_mmu(uint32_t flags); /******************************************************************************* * Optional BL32 functions (may be overridden) ******************************************************************************/ void bl32_plat_enable_mmu(uint32_t flags); /******************************************************************************* * Trusted Board Boot functions ******************************************************************************/ int plat_get_rotpk_info(void *cookie, void **key_ptr, unsigned int *key_len, unsigned int *flags); int plat_get_nv_ctr(void *cookie, unsigned int *nv_ctr); int plat_set_nv_ctr(void *cookie, unsigned int nv_ctr); int plat_set_nv_ctr2(void *cookie, const struct auth_img_desc_s *img_desc, unsigned int nv_ctr); #if LOAD_IMAGE_V2 /******************************************************************************* * Mandatory BL image load functions(may be overridden). ******************************************************************************/ /* * This function returns pointer to the list of images that the * platform has populated to load. */ struct bl_load_info *plat_get_bl_image_load_info(void); /* * This function returns a pointer to the shared memory that the * platform has kept aside to pass trusted firmware related * information that next BL image could need. */ struct bl_params *plat_get_next_bl_params(void); /* * This function flushes to main memory all the params that are * passed to next image. */ void plat_flush_next_bl_params(void); #endif /* LOAD_IMAGE_V2 */ #if ENABLE_PLAT_COMPAT /* * The below declarations are to enable compatibility for the platform ports * using the old platform interface. */ /******************************************************************************* * Optional common functions (may be overridden) ******************************************************************************/ unsigned int platform_get_core_pos(unsigned long mpidr); /******************************************************************************* * Mandatory PSCI Compatibility functions (BL31) ******************************************************************************/ int platform_setup_pm(const plat_pm_ops_t **); unsigned int plat_get_aff_count(unsigned int, unsigned long); unsigned int plat_get_aff_state(unsigned int, unsigned long); #else /* __ENABLE_PLAT_COMPAT__ */ /* * The below function enable Trusted Firmware components like SPDs which * haven't migrated to the new platform API to compile on platforms which * have the compatibility layer disabled. */ unsigned int platform_get_core_pos(unsigned long mpidr) __deprecated; #endif /* __ENABLE_PLAT_COMPAT__ */ #endif /* __PLATFORM_H__ */