* SPDX-License-Identifier: GPL-2.0+
*/
+#include <common.h>
#include <part_efi.h>
#include <efi_api.h>
+
+/* No need for efi loader support in SPL */
+#if defined(CONFIG_EFI_LOADER) && !defined(CONFIG_SPL_BUILD)
+
#include <linux/list.h>
+int __efi_entry_check(void);
+int __efi_exit_check(void);
+const char *__efi_nesting(void);
+const char *__efi_nesting_inc(void);
+const char *__efi_nesting_dec(void);
+
+/*
+ * Enter the u-boot world from UEFI:
+ */
+#define EFI_ENTRY(format, ...) do { \
+ assert(__efi_entry_check()); \
+ debug("%sEFI: Entry %s(" format ")\n", __efi_nesting_inc(), \
+ __func__, ##__VA_ARGS__); \
+ } while(0)
+
+/*
+ * Exit the u-boot world back to UEFI:
+ */
+#define EFI_EXIT(ret) ({ \
+ typeof(ret) _r = ret; \
+ debug("%sEFI: Exit: %s: %u\n", __efi_nesting_dec(), \
+ __func__, (u32)((uintptr_t) _r & ~EFI_ERROR_MASK)); \
+ assert(__efi_exit_check()); \
+ _r; \
+ })
+
+/*
+ * Call non-void UEFI function from u-boot and retrieve return value:
+ */
+#define EFI_CALL(exp) ({ \
+ debug("%sEFI: Call: %s\n", __efi_nesting_inc(), #exp); \
+ assert(__efi_exit_check()); \
+ typeof(exp) _r = exp; \
+ assert(__efi_entry_check()); \
+ debug("%sEFI: %lu returned by %s\n", __efi_nesting_dec(), \
+ (unsigned long)((uintptr_t)_r & ~EFI_ERROR_MASK), #exp); \
+ _r; \
+})
+
+/*
+ * Call void UEFI function from u-boot:
+ */
+#define EFI_CALL_VOID(exp) do { \
+ debug("%sEFI: Call: %s\n", __efi_nesting_inc(), #exp); \
+ assert(__efi_exit_check()); \
+ exp; \
+ assert(__efi_entry_check()); \
+ debug("%sEFI: Return From: %s\n", __efi_nesting_dec(), #exp); \
+ } while(0)
+
+/*
+ * Write GUID
+ */
+#define EFI_PRINT_GUID(txt, guid) ({ \
+ debug("%sEFI: %s %pUl\n", __efi_nesting(), txt, guid); \
+ })
+
+extern struct efi_runtime_services efi_runtime_services;
+extern struct efi_system_table systab;
+
+extern const struct efi_simple_text_output_protocol efi_con_out;
+extern struct efi_simple_input_interface efi_con_in;
+extern const struct efi_console_control_protocol efi_console_control;
+extern const struct efi_device_path_to_text_protocol efi_device_path_to_text;
+
+uint16_t *efi_dp_str(struct efi_device_path *dp);
+
+extern const efi_guid_t efi_global_variable_guid;
+extern const efi_guid_t efi_guid_console_control;
extern const efi_guid_t efi_guid_device_path;
extern const efi_guid_t efi_guid_loaded_image;
+extern const efi_guid_t efi_guid_device_path_to_text_protocol;
+extern const efi_guid_t efi_simple_file_system_protocol_guid;
+extern const efi_guid_t efi_file_info_guid;
+
+extern unsigned int __efi_runtime_start, __efi_runtime_stop;
+extern unsigned int __efi_runtime_rel_start, __efi_runtime_rel_stop;
+
+/*
+ * When the UEFI payload wants to open a protocol on an object to get its
+ * interface (usually a struct with callback functions), this struct maps the
+ * protocol GUID to the respective protocol interface */
+struct efi_handler {
+ const efi_guid_t *guid;
+ void *protocol_interface;
+};
+
+/*
+ * UEFI has a poor man's OO model where one "object" can be polymorphic and have
+ * multiple different protocols (classes) attached to it.
+ *
+ * This struct is the parent struct for all of our actual implementation objects
+ * that can include it to make themselves an EFI object
+ */
+struct efi_object {
+ /* Every UEFI object is part of a global object list */
+ struct list_head link;
+ /* We support up to 16 "protocols" an object can be accessed through */
+ struct efi_handler protocols[16];
+ /* The object spawner can either use this for data or as identifier */
+ void *handle;
+};
+
+#define EFI_PROTOCOL_OBJECT(_guid, _protocol) (struct efi_object){ \
+ .protocols = {{ \
+ .guid = &(_guid), \
+ .protocol_interface = (void *)(_protocol), \
+ }}, \
+ .handle = (void *)(_protocol), \
+}
+
+/**
+ * struct efi_event
+ *
+ * @type: Type of event, see efi_create_event
+ * @notify_tpl: Task priority level of notifications
+ * @trigger_time: Period of the timer
+ * @trigger_next: Next time to trigger the timer
+ * @nofify_function: Function to call when the event is triggered
+ * @notify_context: Data to be passed to the notify function
+ * @trigger_type: Type of timer, see efi_set_timer
+ * @queued: The notification function is queued
+ * @signaled: The event occurred. The event is in the signaled state.
+ */
+struct efi_event {
+ uint32_t type;
+ UINTN notify_tpl;
+ void (EFIAPI *notify_function)(struct efi_event *event, void *context);
+ void *notify_context;
+ u64 trigger_next;
+ u64 trigger_time;
+ enum efi_timer_delay trigger_type;
+ bool is_queued;
+ bool is_signaled;
+};
+
-efi_status_t efi_return_handle(void *handle,
- efi_guid_t *protocol, void **protocol_interface,
- void *agent_handle, void *controller_handle,
- uint32_t attributes);
+/* This list contains all UEFI objects we know of */
+extern struct list_head efi_obj_list;
+
+/* Called by bootefi to make console interface available */
+int efi_console_register(void);
+/* Called by bootefi to make all disk storage accessible as EFI objects */
+int efi_disk_register(void);
+/* Called by bootefi to make GOP (graphical) interface available */
+int efi_gop_register(void);
+/* Called by bootefi to make the network interface available */
+int efi_net_register(void);
+/* Called by bootefi to make SMBIOS tables available */
+void efi_smbios_register(void);
+
+struct efi_simple_file_system_protocol *
+efi_fs_from_path(struct efi_device_path *fp);
+
+/* Called by networking code to memorize the dhcp ack package */
+void efi_net_set_dhcp_ack(void *pkt, int len);
+
+/* Called from places to check whether a timer expired */
+void efi_timer_check(void);
+/* PE loader implementation */
void *efi_load_pe(void *efi, struct efi_loaded_image *loaded_image_info);
+/* Called once to store the pristine gd pointer */
+void efi_save_gd(void);
+/* Special case handler for error/abort that just tries to dtrt to get
+ * back to u-boot world */
+void efi_restore_gd(void);
+/* Call this to relocate the runtime section to an address space */
+void efi_runtime_relocate(ulong offset, struct efi_mem_desc *map);
+/* Call this to set the current device name */
+void efi_set_bootdev(const char *dev, const char *devnr, const char *path);
+/* Call this to create an event */
+efi_status_t efi_create_event(uint32_t type, UINTN notify_tpl,
+ void (EFIAPI *notify_function) (
+ struct efi_event *event,
+ void *context),
+ void *notify_context, struct efi_event **event);
+/* Call this to set a timer */
+efi_status_t efi_set_timer(struct efi_event *event, enum efi_timer_delay type,
+ uint64_t trigger_time);
+/* Call this to signal an event */
+void efi_signal_event(struct efi_event *event);
+
+/* open file system: */
+struct efi_simple_file_system_protocol *efi_simple_file_system(
+ struct blk_desc *desc, int part, struct efi_device_path *dp);
+
+/* open file from device-path: */
+struct efi_file_handle *efi_file_from_path(struct efi_device_path *fp);
+
+
+/* Generic EFI memory allocator, call this to get memory */
+void *efi_alloc(uint64_t len, int memory_type);
+/* More specific EFI memory allocator, called by EFI payloads */
+efi_status_t efi_allocate_pages(int type, int memory_type, unsigned long pages,
+ uint64_t *memory);
+/* EFI memory free function. */
+efi_status_t efi_free_pages(uint64_t memory, unsigned long pages);
+/* EFI memory allocator for small allocations */
+efi_status_t efi_allocate_pool(int pool_type, unsigned long size,
+ void **buffer);
+/* EFI pool memory free function. */
+efi_status_t efi_free_pool(void *buffer);
+/* Returns the EFI memory map */
+efi_status_t efi_get_memory_map(unsigned long *memory_map_size,
+ struct efi_mem_desc *memory_map,
+ unsigned long *map_key,
+ unsigned long *descriptor_size,
+ uint32_t *descriptor_version);
+/* Adds a range into the EFI memory map */
+uint64_t efi_add_memory_map(uint64_t start, uint64_t pages, int memory_type,
+ bool overlap_only_ram);
+/* Called by board init to initialize the EFI memory map */
+int efi_memory_init(void);
+/* Adds new or overrides configuration table entry to the system table */
+efi_status_t efi_install_configuration_table(const efi_guid_t *guid, void *table);
+void efi_setup_loaded_image(struct efi_loaded_image *info, struct efi_object *obj,
+ struct efi_device_path *device_path,
+ struct efi_device_path *file_path);
+efi_status_t efi_load_image_from_path(struct efi_device_path *file_path,
+ void **buffer);
+
+#ifdef CONFIG_EFI_LOADER_BOUNCE_BUFFER
+extern void *efi_bounce_buffer;
+#define EFI_LOADER_BOUNCE_BUFFER_SIZE (64 * 1024 * 1024)
+#endif
+
+
+struct efi_device_path *efi_dp_next(const struct efi_device_path *dp);
+int efi_dp_match(struct efi_device_path *a, struct efi_device_path *b);
+struct efi_object *efi_dp_find_obj(struct efi_device_path *dp,
+ struct efi_device_path **rem);
+unsigned efi_dp_size(const struct efi_device_path *dp);
+struct efi_device_path *efi_dp_dup(const struct efi_device_path *dp);
+struct efi_device_path *efi_dp_append(const struct efi_device_path *dp1,
+ const struct efi_device_path *dp2);
+struct efi_device_path *efi_dp_append_node(const struct efi_device_path *dp,
+ const struct efi_device_path *node);
+
+
+struct efi_device_path *efi_dp_from_dev(struct udevice *dev);
+struct efi_device_path *efi_dp_from_part(struct blk_desc *desc, int part);
+struct efi_device_path *efi_dp_from_file(struct blk_desc *desc, int part,
+ const char *path);
+struct efi_device_path *efi_dp_from_eth(void);
+struct efi_device_path *efi_dp_from_mem(uint32_t mem_type,
+ uint64_t start_address,
+ uint64_t end_address);
+void efi_dp_split_file_path(struct efi_device_path *full_path,
+ struct efi_device_path **device_path,
+ struct efi_device_path **file_path);
+
+#define EFI_DP_TYPE(_dp, _type, _subtype) \
+ (((_dp)->type == DEVICE_PATH_TYPE_##_type) && \
+ ((_dp)->sub_type == DEVICE_PATH_SUB_TYPE_##_subtype))
+
+/* Convert strings from normal C strings to uEFI strings */
+static inline void ascii2unicode(u16 *unicode, const char *ascii)
+{
+ while (*ascii)
+ *(unicode++) = *(ascii++);
+}
+
+static inline int guidcmp(const efi_guid_t *g1, const efi_guid_t *g2)
+{
+ return memcmp(g1, g2, sizeof(efi_guid_t));
+}
+
+/*
+ * Use these to indicate that your code / data should go into the EFI runtime
+ * section and thus still be available when the OS is running
+ */
+#define __efi_runtime_data __attribute__ ((section ("efi_runtime_data")))
+#define __efi_runtime __attribute__ ((section ("efi_runtime_text")))
+
+/* Call this with mmio_ptr as the _pointer_ to a pointer to an MMIO region
+ * to make it available at runtime */
+void efi_add_runtime_mmio(void *mmio_ptr, u64 len);
+
+/* Boards may provide the functions below to implement RTS functionality */
+
+void __efi_runtime EFIAPI efi_reset_system(
+ enum efi_reset_type reset_type,
+ efi_status_t reset_status,
+ unsigned long data_size, void *reset_data);
+void efi_reset_system_init(void);
+
+efi_status_t __efi_runtime EFIAPI efi_get_time(
+ struct efi_time *time,
+ struct efi_time_cap *capabilities);
+void efi_get_time_init(void);
+
+#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
+/*
+ * Entry point for the tests of the EFI API.
+ * It is called by 'bootefi selftest'
+ */
+efi_status_t EFIAPI efi_selftest(efi_handle_t image_handle,
+ struct efi_system_table *systab);
+#endif
+
+efi_status_t EFIAPI efi_get_variable(s16 *variable_name,
+ efi_guid_t *vendor, u32 *attributes,
+ unsigned long *data_size, void *data);
+efi_status_t EFIAPI efi_get_next_variable(
+ unsigned long *variable_name_size,
+ s16 *variable_name, efi_guid_t *vendor);
+efi_status_t EFIAPI efi_set_variable(s16 *variable_name,
+ efi_guid_t *vendor, u32 attributes,
+ unsigned long data_size, void *data);
+
+void *efi_bootmgr_load(struct efi_device_path **device_path,
+ struct efi_device_path **file_path);
+
+#else /* defined(EFI_LOADER) && !defined(CONFIG_SPL_BUILD) */
+
+/* Without CONFIG_EFI_LOADER we don't have a runtime section, stub it out */
+#define __efi_runtime_data
+#define __efi_runtime
+static inline void efi_add_runtime_mmio(void *mmio_ptr, u64 len) { }
+
+/* No loader configured, stub out EFI_ENTRY */
+static inline void efi_restore_gd(void) { }
+static inline void efi_set_bootdev(const char *dev, const char *devnr,
+ const char *path) { }
+static inline void efi_net_set_dhcp_ack(void *pkt, int len) { }
+
+#endif
projects / people / ms / u-boot.git / blobdiff