diff options
Diffstat (limited to 'include/linux/efi.h')
| -rw-r--r-- | include/linux/efi.h | 106 |
1 files changed, 96 insertions, 10 deletions
diff --git a/include/linux/efi.h b/include/linux/efi.h index 6c100ff0cae4..45cb4ffdea62 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -20,6 +20,7 @@ #include <linux/ioport.h> #include <linux/pfn.h> #include <linux/pstore.h> +#include <linux/reboot.h> #include <asm/page.h> @@ -521,6 +522,8 @@ typedef efi_status_t efi_query_capsule_caps_t(efi_capsule_header_t **capsules, int *reset_type); typedef efi_status_t efi_query_variable_store_t(u32 attributes, unsigned long size); +void efi_native_runtime_setup(void); + /* * EFI Configuration Table and GUID definitions */ @@ -575,6 +578,9 @@ typedef efi_status_t efi_query_variable_store_t(u32 attributes, unsigned long si #define EFI_FILE_SYSTEM_GUID \ EFI_GUID( 0x964e5b22, 0x6459, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b ) +#define DEVICE_TREE_GUID \ + EFI_GUID( 0xb1b621d5, 0xf19c, 0x41a5, 0x83, 0x0b, 0xd9, 0x15, 0x2c, 0x69, 0xaa, 0xe0 ) + typedef struct { efi_guid_t guid; u64 table; @@ -664,6 +670,14 @@ struct efi_memory_map { unsigned long desc_size; }; +struct efi_fdt_params { + u64 system_table; + u64 mmap; + u32 mmap_size; + u32 desc_size; + u32 desc_ver; +}; + typedef struct { u32 revision; u32 parent_handle; @@ -859,10 +873,19 @@ extern int __init efi_uart_console_only (void); extern void efi_initialize_iomem_resources(struct resource *code_resource, struct resource *data_resource, struct resource *bss_resource); extern void efi_get_time(struct timespec *now); -extern int efi_set_rtc_mmss(const struct timespec *now); extern void efi_reserve_boot_services(void); +extern int efi_get_fdt_params(struct efi_fdt_params *params, int verbose); extern struct efi_memory_map memmap; +extern int efi_reboot_quirk_mode; +extern bool efi_poweroff_required(void); + +/* Iterate through an efi_memory_map */ +#define for_each_efi_memory_desc(m, md) \ + for ((md) = (m)->map; \ + (md) <= (efi_memory_desc_t *)((m)->map_end - (m)->desc_size); \ + (md) = (void *)(md) + (m)->desc_size) + /** * efi_range_is_wc - check the WC bit on an address range * @start: starting kvirt address @@ -898,7 +921,8 @@ extern int __init efi_setup_pcdp_console(char *); #define EFI_RUNTIME_SERVICES 3 /* Can we use runtime services? */ #define EFI_MEMMAP 4 /* Can we use EFI memory map? */ #define EFI_64BIT 5 /* Is the firmware 64-bit? */ -#define EFI_ARCH_1 6 /* First arch-specific bit */ +#define EFI_PARAVIRT 6 /* Access is via a paravirt interface */ +#define EFI_ARCH_1 7 /* First arch-specific bit */ #ifdef CONFIG_EFI /* @@ -908,11 +932,14 @@ static inline bool efi_enabled(int feature) { return test_bit(feature, &efi.flags) != 0; } +extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused); #else static inline bool efi_enabled(int feature) { return false; } +static inline void +efi_reboot(enum reboot_mode reboot_mode, const char *__unused) {} #endif /* @@ -1013,12 +1040,8 @@ struct efivar_operations { struct efivars { /* * ->lock protects two things: - * 1) ->list - adds, removals, reads, writes - * 2) ops.[gs]et_variable() calls. - * It must not be held when creating sysfs entries or calling kmalloc. - * ops.get_next_variable() is only called from register_efivars() - * or efivar_update_sysfs_entries(), - * which is protected by the BKL, so that path is safe. + * 1) efivarfs_list and efivars_sysfs_list + * 2) ->ops calls */ spinlock_t lock; struct kset *kset; @@ -1033,8 +1056,10 @@ struct efivars { * and we use a page for reading/writing. */ +#define EFI_VAR_NAME_LEN 1024 + struct efi_variable { - efi_char16_t VariableName[1024/sizeof(efi_char16_t)]; + efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)]; efi_guid_t VendorGuid; unsigned long DataSize; __u8 Data[1024]; @@ -1116,7 +1141,7 @@ int efivar_entry_iter(int (*func)(struct efivar_entry *, void *), struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid, struct list_head *head, bool remove); -bool efivar_validate(struct efi_variable *var, u8 *data, unsigned long len); +bool efivar_validate(efi_char16_t *var_name, u8 *data, unsigned long len); extern struct work_struct efivar_work; void efivar_run_worker(void); @@ -1131,6 +1156,9 @@ int efivars_sysfs_init(void); #ifdef CONFIG_EFI_RUNTIME_MAP int efi_runtime_map_init(struct kobject *); void efi_runtime_map_setup(void *, int, u32); +int efi_get_runtime_map_size(void); +int efi_get_runtime_map_desc_size(void); +int efi_runtime_map_copy(void *buf, size_t bufsz); #else static inline int efi_runtime_map_init(struct kobject *kobj) { @@ -1139,6 +1167,64 @@ static inline int efi_runtime_map_init(struct kobject *kobj) static inline void efi_runtime_map_setup(void *map, int nr_entries, u32 desc_size) {} + +static inline int efi_get_runtime_map_size(void) +{ + return 0; +} + +static inline int efi_get_runtime_map_desc_size(void) +{ + return 0; +} + +static inline int efi_runtime_map_copy(void *buf, size_t bufsz) +{ + return 0; +} + #endif +/* prototypes shared between arch specific and generic stub code */ + +#define pr_efi(sys_table, msg) efi_printk(sys_table, "EFI stub: "msg) +#define pr_efi_err(sys_table, msg) efi_printk(sys_table, "EFI stub: ERROR: "msg) + +void efi_printk(efi_system_table_t *sys_table_arg, char *str); + +void efi_free(efi_system_table_t *sys_table_arg, unsigned long size, + unsigned long addr); + +char *efi_convert_cmdline(efi_system_table_t *sys_table_arg, + efi_loaded_image_t *image, int *cmd_line_len); + +efi_status_t efi_get_memory_map(efi_system_table_t *sys_table_arg, + efi_memory_desc_t **map, + unsigned long *map_size, + unsigned long *desc_size, + u32 *desc_ver, + unsigned long *key_ptr); + +efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg, + unsigned long size, unsigned long align, + unsigned long *addr); + +efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg, + unsigned long size, unsigned long align, + unsigned long *addr, unsigned long max); + +efi_status_t efi_relocate_kernel(efi_system_table_t *sys_table_arg, + unsigned long *image_addr, + unsigned long image_size, + unsigned long alloc_size, + unsigned long preferred_addr, + unsigned long alignment); + +efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg, + efi_loaded_image_t *image, + char *cmd_line, char *option_string, + unsigned long max_addr, + unsigned long *load_addr, + unsigned long *load_size); + #endif /* _LINUX_EFI_H */ |