1 2 #ifndef _DRIVERS_FIRMWARE_EFI_EFISTUB_H 3 #define _DRIVERS_FIRMWARE_EFI_EFISTUB_H 4 5 /* error code which can't be mistaken for valid address */ 6 #define EFI_ERROR (~0UL) 7 8 /* 9 * __init annotations should not be used in the EFI stub, since the code is 10 * either included in the decompressor (x86, ARM) where they have no effect, 11 * or the whole stub is __init annotated at the section level (arm64), by 12 * renaming the sections, in which case the __init annotation will be 13 * redundant, and will result in section names like .init.init.text, and our 14 * linker script does not expect that. 15 */ 16 #undef __init 17 18 extern int __pure nokaslr(void); 19 20 void efi_char16_printk(efi_system_table_t *, efi_char16_t *); 21 22 efi_status_t efi_open_volume(efi_system_table_t *sys_table_arg, void *__image, 23 void **__fh); 24 25 efi_status_t efi_file_size(efi_system_table_t *sys_table_arg, void *__fh, 26 efi_char16_t *filename_16, void **handle, 27 u64 *file_sz); 28 29 efi_status_t efi_file_read(void *handle, unsigned long *size, void *addr); 30 31 efi_status_t efi_file_close(void *handle); 32 33 unsigned long get_dram_base(efi_system_table_t *sys_table_arg); 34 35 efi_status_t allocate_new_fdt_and_exit_boot(efi_system_table_t *sys_table, 36 void *handle, 37 unsigned long *new_fdt_addr, 38 unsigned long max_addr, 39 u64 initrd_addr, u64 initrd_size, 40 char *cmdline_ptr, 41 unsigned long fdt_addr, 42 unsigned long fdt_size); 43 44 void *get_fdt(efi_system_table_t *sys_table, unsigned long *fdt_size); 45 46 void efi_get_virtmap(efi_memory_desc_t *memory_map, unsigned long map_size, 47 unsigned long desc_size, efi_memory_desc_t *runtime_map, 48 int *count); 49 50 efi_status_t efi_get_random_bytes(efi_system_table_t *sys_table, 51 unsigned long size, u8 *out); 52 53 efi_status_t efi_random_alloc(efi_system_table_t *sys_table_arg, 54 unsigned long size, unsigned long align, 55 unsigned long *addr, unsigned long random_seed); 56 57 efi_status_t check_platform_features(efi_system_table_t *sys_table_arg); 58 59 #endif 60