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-rw-r--r--include/linux/efi.h996
1 files changed, 325 insertions, 671 deletions
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 7efd7072cca5..7603fc58c47c 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -29,16 +29,17 @@
#include <asm/page.h>
#define EFI_SUCCESS 0
-#define EFI_LOAD_ERROR ( 1 | (1UL << (BITS_PER_LONG-1)))
+#define EFI_LOAD_ERROR ( 1 | (1UL << (BITS_PER_LONG-1)))
#define EFI_INVALID_PARAMETER ( 2 | (1UL << (BITS_PER_LONG-1)))
#define EFI_UNSUPPORTED ( 3 | (1UL << (BITS_PER_LONG-1)))
-#define EFI_BAD_BUFFER_SIZE ( 4 | (1UL << (BITS_PER_LONG-1)))
+#define EFI_BAD_BUFFER_SIZE ( 4 | (1UL << (BITS_PER_LONG-1)))
#define EFI_BUFFER_TOO_SMALL ( 5 | (1UL << (BITS_PER_LONG-1)))
#define EFI_NOT_READY ( 6 | (1UL << (BITS_PER_LONG-1)))
#define EFI_DEVICE_ERROR ( 7 | (1UL << (BITS_PER_LONG-1)))
#define EFI_WRITE_PROTECTED ( 8 | (1UL << (BITS_PER_LONG-1)))
#define EFI_OUT_OF_RESOURCES ( 9 | (1UL << (BITS_PER_LONG-1)))
#define EFI_NOT_FOUND (14 | (1UL << (BITS_PER_LONG-1)))
+#define EFI_TIMEOUT (18 | (1UL << (BITS_PER_LONG-1)))
#define EFI_ABORTED (21 | (1UL << (BITS_PER_LONG-1)))
#define EFI_SECURITY_VIOLATION (26 | (1UL << (BITS_PER_LONG-1)))
@@ -56,19 +57,6 @@ typedef void *efi_handle_t;
#define __efiapi
#endif
-#define efi_get_handle_at(array, idx) \
- (efi_is_native() ? (array)[idx] \
- : (efi_handle_t)(unsigned long)((u32 *)(array))[idx])
-
-#define efi_get_handle_num(size) \
- ((size) / (efi_is_native() ? sizeof(efi_handle_t) : sizeof(u32)))
-
-#define for_each_efi_handle(handle, array, size, i) \
- for (i = 0; \
- i < efi_get_handle_num(size) && \
- ((handle = efi_get_handle_at((array), i)) || true); \
- i++)
-
/*
* The UEFI spec and EDK2 reference implementation both define EFI_GUID as
* struct { u32 a; u16; b; u16 c; u8 d[8]; }; and so the implied alignment
@@ -84,8 +72,10 @@ typedef void *efi_handle_t;
*/
typedef guid_t efi_guid_t __aligned(__alignof__(u32));
-#define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
- GUID_INIT(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)
+#define EFI_GUID(a, b, c, d...) (efi_guid_t){ { \
+ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
+ (b) & 0xff, ((b) >> 8) & 0xff, \
+ (c) & 0xff, ((c) >> 8) & 0xff, d } }
/*
* Generic EFI table header
@@ -134,6 +124,7 @@ typedef struct {
((u64)0x0000000000010000ULL) /* higher reliability */
#define EFI_MEMORY_RO ((u64)0x0000000000020000ULL) /* read-only */
#define EFI_MEMORY_SP ((u64)0x0000000000040000ULL) /* soft reserved */
+#define EFI_MEMORY_CPU_CRYPTO ((u64)0x0000000000080000ULL) /* supports encryption */
#define EFI_MEMORY_RUNTIME ((u64)0x8000000000000000ULL) /* range requires runtime mapping */
#define EFI_MEMORY_DESCRIPTOR_VERSION 1
@@ -157,13 +148,50 @@ typedef struct {
u32 imagesize;
} efi_capsule_header_t;
-struct efi_boot_memmap {
- efi_memory_desc_t **map;
- unsigned long *map_size;
- unsigned long *desc_size;
- u32 *desc_ver;
- unsigned long *key_ptr;
- unsigned long *buff_size;
+/* EFI_FIRMWARE_MANAGEMENT_CAPSULE_HEADER */
+struct efi_manage_capsule_header {
+ u32 ver;
+ u16 emb_drv_cnt;
+ u16 payload_cnt;
+ /*
+ * Variable-size array of the size given by the sum of
+ * emb_drv_cnt and payload_cnt.
+ */
+ u64 offset_list[];
+} __packed;
+
+/* EFI_FIRMWARE_MANAGEMENT_CAPSULE_IMAGE_HEADER */
+struct efi_manage_capsule_image_header {
+ u32 ver;
+ efi_guid_t image_type_id;
+ u8 image_index;
+ u8 reserved_bytes[3];
+ u32 image_size;
+ u32 vendor_code_size;
+ /* hw_ins was introduced in version 2 */
+ u64 hw_ins;
+ /* capsule_support was introduced in version 3 */
+ u64 capsule_support;
+} __packed;
+
+/* WIN_CERTIFICATE */
+struct win_cert {
+ u32 len;
+ u16 rev;
+ u16 cert_type;
+};
+
+/* WIN_CERTIFICATE_UEFI_GUID */
+struct win_cert_uefi_guid {
+ struct win_cert hdr;
+ efi_guid_t cert_type;
+ u8 cert_data[];
+};
+
+/* EFI_FIRMWARE_IMAGE_AUTHENTICATION */
+struct efi_image_auth {
+ u64 mon_count;
+ struct win_cert_uefi_guid auth_info;
};
/*
@@ -185,19 +213,11 @@ struct capsule_info {
size_t page_bytes_remain;
};
+int efi_capsule_setup_info(struct capsule_info *cap_info, void *kbuff,
+ size_t hdr_bytes);
int __efi_capsule_setup_info(struct capsule_info *cap_info);
/*
- * Allocation types for calls to boottime->allocate_pages.
- */
-#define EFI_ALLOCATE_ANY_PAGES 0
-#define EFI_ALLOCATE_MAX_ADDRESS 1
-#define EFI_ALLOCATE_ADDRESS 2
-#define EFI_MAX_ALLOCATE_TYPE 3
-
-typedef int (*efi_freemem_callback_t) (u64 start, u64 end, void *arg);
-
-/*
* Types and defines for Time Services
*/
#define EFI_TIME_ADJUST_DAYLIGHT 0x1
@@ -224,291 +244,7 @@ typedef struct {
u8 sets_to_zero;
} efi_time_cap_t;
-typedef struct {
- efi_table_hdr_t hdr;
- u32 raise_tpl;
- u32 restore_tpl;
- u32 allocate_pages;
- u32 free_pages;
- u32 get_memory_map;
- u32 allocate_pool;
- u32 free_pool;
- u32 create_event;
- u32 set_timer;
- u32 wait_for_event;
- u32 signal_event;
- u32 close_event;
- u32 check_event;
- u32 install_protocol_interface;
- u32 reinstall_protocol_interface;
- u32 uninstall_protocol_interface;
- u32 handle_protocol;
- u32 __reserved;
- u32 register_protocol_notify;
- u32 locate_handle;
- u32 locate_device_path;
- u32 install_configuration_table;
- u32 load_image;
- u32 start_image;
- u32 exit;
- u32 unload_image;
- u32 exit_boot_services;
- u32 get_next_monotonic_count;
- u32 stall;
- u32 set_watchdog_timer;
- u32 connect_controller;
- u32 disconnect_controller;
- u32 open_protocol;
- u32 close_protocol;
- u32 open_protocol_information;
- u32 protocols_per_handle;
- u32 locate_handle_buffer;
- u32 locate_protocol;
- u32 install_multiple_protocol_interfaces;
- u32 uninstall_multiple_protocol_interfaces;
- u32 calculate_crc32;
- u32 copy_mem;
- u32 set_mem;
- u32 create_event_ex;
-} __packed efi_boot_services_32_t;
-
-/*
- * EFI Boot Services table
- */
-typedef union {
- struct {
- efi_table_hdr_t hdr;
- void *raise_tpl;
- void *restore_tpl;
- efi_status_t (__efiapi *allocate_pages)(int, int, unsigned long,
- efi_physical_addr_t *);
- efi_status_t (__efiapi *free_pages)(efi_physical_addr_t,
- unsigned long);
- efi_status_t (__efiapi *get_memory_map)(unsigned long *, void *,
- unsigned long *,
- unsigned long *, u32 *);
- efi_status_t (__efiapi *allocate_pool)(int, unsigned long,
- void **);
- efi_status_t (__efiapi *free_pool)(void *);
- void *create_event;
- void *set_timer;
- void *wait_for_event;
- void *signal_event;
- void *close_event;
- void *check_event;
- void *install_protocol_interface;
- void *reinstall_protocol_interface;
- void *uninstall_protocol_interface;
- efi_status_t (__efiapi *handle_protocol)(efi_handle_t,
- efi_guid_t *, void **);
- void *__reserved;
- void *register_protocol_notify;
- efi_status_t (__efiapi *locate_handle)(int, efi_guid_t *,
- void *, unsigned long *,
- efi_handle_t *);
- void *locate_device_path;
- efi_status_t (__efiapi *install_configuration_table)(efi_guid_t *,
- void *);
- void *load_image;
- void *start_image;
- void *exit;
- void *unload_image;
- efi_status_t (__efiapi *exit_boot_services)(efi_handle_t,
- unsigned long);
- void *get_next_monotonic_count;
- void *stall;
- void *set_watchdog_timer;
- void *connect_controller;
- efi_status_t (__efiapi *disconnect_controller)(efi_handle_t,
- efi_handle_t,
- efi_handle_t);
- void *open_protocol;
- void *close_protocol;
- void *open_protocol_information;
- void *protocols_per_handle;
- void *locate_handle_buffer;
- efi_status_t (__efiapi *locate_protocol)(efi_guid_t *, void *,
- void **);
- void *install_multiple_protocol_interfaces;
- void *uninstall_multiple_protocol_interfaces;
- void *calculate_crc32;
- void *copy_mem;
- void *set_mem;
- void *create_event_ex;
- };
- efi_boot_services_32_t mixed_mode;
-} efi_boot_services_t;
-
-typedef enum {
- EfiPciIoWidthUint8,
- EfiPciIoWidthUint16,
- EfiPciIoWidthUint32,
- EfiPciIoWidthUint64,
- EfiPciIoWidthFifoUint8,
- EfiPciIoWidthFifoUint16,
- EfiPciIoWidthFifoUint32,
- EfiPciIoWidthFifoUint64,
- EfiPciIoWidthFillUint8,
- EfiPciIoWidthFillUint16,
- EfiPciIoWidthFillUint32,
- EfiPciIoWidthFillUint64,
- EfiPciIoWidthMaximum
-} EFI_PCI_IO_PROTOCOL_WIDTH;
-
-typedef enum {
- EfiPciIoAttributeOperationGet,
- EfiPciIoAttributeOperationSet,
- EfiPciIoAttributeOperationEnable,
- EfiPciIoAttributeOperationDisable,
- EfiPciIoAttributeOperationSupported,
- EfiPciIoAttributeOperationMaximum
-} EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION;
-
-typedef struct {
- u32 read;
- u32 write;
-} efi_pci_io_protocol_access_32_t;
-
-typedef union efi_pci_io_protocol efi_pci_io_protocol_t;
-
-typedef
-efi_status_t (__efiapi *efi_pci_io_protocol_cfg_t)(efi_pci_io_protocol_t *,
- EFI_PCI_IO_PROTOCOL_WIDTH,
- u32 offset,
- unsigned long count,
- void *buffer);
-
-typedef struct {
- void *read;
- void *write;
-} efi_pci_io_protocol_access_t;
-
-typedef struct {
- efi_pci_io_protocol_cfg_t read;
- efi_pci_io_protocol_cfg_t write;
-} efi_pci_io_protocol_config_access_t;
-
-union efi_pci_io_protocol {
- struct {
- void *poll_mem;
- void *poll_io;
- efi_pci_io_protocol_access_t mem;
- efi_pci_io_protocol_access_t io;
- efi_pci_io_protocol_config_access_t pci;
- void *copy_mem;
- void *map;
- void *unmap;
- void *allocate_buffer;
- void *free_buffer;
- void *flush;
- efi_status_t (__efiapi *get_location)(efi_pci_io_protocol_t *,
- unsigned long *segment_nr,
- unsigned long *bus_nr,
- unsigned long *device_nr,
- unsigned long *func_nr);
- void *attributes;
- void *get_bar_attributes;
- void *set_bar_attributes;
- uint64_t romsize;
- void *romimage;
- };
- struct {
- u32 poll_mem;
- u32 poll_io;
- efi_pci_io_protocol_access_32_t mem;
- efi_pci_io_protocol_access_32_t io;
- efi_pci_io_protocol_access_32_t pci;
- u32 copy_mem;
- u32 map;
- u32 unmap;
- u32 allocate_buffer;
- u32 free_buffer;
- u32 flush;
- u32 get_location;
- u32 attributes;
- u32 get_bar_attributes;
- u32 set_bar_attributes;
- u64 romsize;
- u32 romimage;
- } mixed_mode;
-};
-
-#define EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO 0x0001
-#define EFI_PCI_IO_ATTRIBUTE_ISA_IO 0x0002
-#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO 0x0004
-#define EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY 0x0008
-#define EFI_PCI_IO_ATTRIBUTE_VGA_IO 0x0010
-#define EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO 0x0020
-#define EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO 0x0040
-#define EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080
-#define EFI_PCI_IO_ATTRIBUTE_IO 0x0100
-#define EFI_PCI_IO_ATTRIBUTE_MEMORY 0x0200
-#define EFI_PCI_IO_ATTRIBUTE_BUS_MASTER 0x0400
-#define EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED 0x0800
-#define EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000
-#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE 0x2000
-#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM 0x4000
-#define EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE 0x8000
-#define EFI_PCI_IO_ATTRIBUTE_ISA_IO_16 0x10000
-#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 0x20000
-#define EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 0x40000
-
-struct efi_dev_path;
-
-typedef union apple_properties_protocol apple_properties_protocol_t;
-
-union apple_properties_protocol {
- struct {
- unsigned long version;
- efi_status_t (__efiapi *get)(apple_properties_protocol_t *,
- struct efi_dev_path *,
- efi_char16_t *, void *, u32 *);
- efi_status_t (__efiapi *set)(apple_properties_protocol_t *,
- struct efi_dev_path *,
- efi_char16_t *, void *, u32);
- efi_status_t (__efiapi *del)(apple_properties_protocol_t *,
- struct efi_dev_path *,
- efi_char16_t *);
- efi_status_t (__efiapi *get_all)(apple_properties_protocol_t *,
- void *buffer, u32 *);
- };
- struct {
- u32 version;
- u32 get;
- u32 set;
- u32 del;
- u32 get_all;
- } mixed_mode;
-};
-
-typedef u32 efi_tcg2_event_log_format;
-
-typedef union efi_tcg2_protocol efi_tcg2_protocol_t;
-
-union efi_tcg2_protocol {
- struct {
- void *get_capability;
- efi_status_t (__efiapi *get_event_log)(efi_handle_t,
- efi_tcg2_event_log_format,
- efi_physical_addr_t *,
- efi_physical_addr_t *,
- efi_bool_t *);
- void *hash_log_extend_event;
- void *submit_command;
- void *get_active_pcr_banks;
- void *set_active_pcr_banks;
- void *get_result_of_set_active_pcr_banks;
- };
- struct {
- u32 get_capability;
- u32 get_event_log;
- u32 hash_log_extend_event;
- u32 submit_command;
- u32 get_active_pcr_banks;
- u32 set_active_pcr_banks;
- u32 get_result_of_set_active_pcr_banks;
- } mixed_mode;
-};
+typedef union efi_boot_services efi_boot_services_t;
/*
* Types and defines for EFI ResetSystem
@@ -632,6 +368,9 @@ void efi_native_runtime_setup(void);
#define UV_SYSTEM_TABLE_GUID EFI_GUID(0x3b13a7d4, 0x633e, 0x11dd, 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93)
#define LINUX_EFI_CRASH_GUID EFI_GUID(0xcfc8fc79, 0xbe2e, 0x4ddc, 0x97, 0xf0, 0x9f, 0x98, 0xbf, 0xe2, 0x98, 0xa0)
#define LOADED_IMAGE_PROTOCOL_GUID EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
+#define LOADED_IMAGE_DEVICE_PATH_PROTOCOL_GUID EFI_GUID(0xbc62157e, 0x3e33, 0x4fec, 0x99, 0x20, 0x2d, 0x3b, 0x36, 0xd7, 0x50, 0xdf)
+#define EFI_DEVICE_PATH_PROTOCOL_GUID EFI_GUID(0x09576e91, 0x6d3f, 0x11d2, 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
+#define EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID EFI_GUID(0x8b843e20, 0x8132, 0x4852, 0x90, 0xcc, 0x55, 0x1a, 0x4e, 0x4a, 0x7f, 0x1c)
#define EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID EFI_GUID(0x9042a9de, 0x23dc, 0x4a38, 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a)
#define EFI_UGA_PROTOCOL_GUID EFI_GUID(0x982c298b, 0xf4fa, 0x41cb, 0xb8, 0x38, 0x77, 0xaa, 0x68, 0x8f, 0xb8, 0x39)
#define EFI_PCI_IO_PROTOCOL_GUID EFI_GUID(0x4cf5b200, 0x68b8, 0x4ca5, 0x9e, 0xec, 0xb2, 0x3e, 0x3f, 0x50, 0x02, 0x9a)
@@ -646,6 +385,11 @@ void efi_native_runtime_setup(void);
#define EFI_CONSOLE_OUT_DEVICE_GUID EFI_GUID(0xd3b36f2c, 0xd551, 0x11d4, 0x9a, 0x46, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
#define APPLE_PROPERTIES_PROTOCOL_GUID EFI_GUID(0x91bd12fe, 0xf6c3, 0x44fb, 0xa5, 0xb7, 0x51, 0x22, 0xab, 0x30, 0x3a, 0xe0)
#define EFI_TCG2_PROTOCOL_GUID EFI_GUID(0x607f766c, 0x7455, 0x42be, 0x93, 0x0b, 0xe4, 0xd7, 0x6d, 0xb2, 0x72, 0x0f)
+#define EFI_LOAD_FILE_PROTOCOL_GUID EFI_GUID(0x56ec3091, 0x954c, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
+#define EFI_LOAD_FILE2_PROTOCOL_GUID EFI_GUID(0x4006c0c1, 0xfcb3, 0x403e, 0x99, 0x6d, 0x4a, 0x6c, 0x87, 0x24, 0xe0, 0x6d)
+#define EFI_RT_PROPERTIES_TABLE_GUID EFI_GUID(0xeb66918a, 0x7eef, 0x402a, 0x84, 0x2e, 0x93, 0x1d, 0x21, 0xc3, 0x8a, 0xe9)
+#define EFI_DXE_SERVICES_TABLE_GUID EFI_GUID(0x05ad34ba, 0x6f02, 0x4214, 0x95, 0x2e, 0x4d, 0xa0, 0x39, 0x8e, 0x2b, 0xb9)
+#define EFI_SMBIOS_PROTOCOL_GUID EFI_GUID(0x03583ff6, 0xcb36, 0x4940, 0x94, 0x7e, 0xb9, 0xb3, 0x9f, 0x4a, 0xfa, 0xf7)
#define EFI_IMAGE_SECURITY_DATABASE_GUID EFI_GUID(0xd719b2cb, 0x3d3a, 0x4596, 0xa3, 0xbc, 0xda, 0xd0, 0x0e, 0x67, 0x65, 0x6f)
#define EFI_SHIM_LOCK_GUID EFI_GUID(0x605dab50, 0xe046, 0x4300, 0xab, 0xb6, 0x3d, 0xd8, 0x10, 0xdd, 0x8b, 0x23)
@@ -653,6 +397,7 @@ void efi_native_runtime_setup(void);
#define EFI_CERT_SHA256_GUID EFI_GUID(0xc1c41626, 0x504c, 0x4092, 0xac, 0xa9, 0x41, 0xf9, 0x36, 0x93, 0x43, 0x28)
#define EFI_CERT_X509_GUID EFI_GUID(0xa5c059a1, 0x94e4, 0x4aa7, 0x87, 0xb5, 0xab, 0x15, 0x5c, 0x2b, 0xf0, 0x72)
#define EFI_CERT_X509_SHA256_GUID EFI_GUID(0x3bd2a492, 0x96c0, 0x4079, 0xb4, 0x20, 0xfc, 0xf9, 0x8e, 0xf1, 0x03, 0xed)
+#define EFI_CC_BLOB_GUID EFI_GUID(0x067b1f5f, 0xcf26, 0x44c5, 0x85, 0x54, 0x93, 0xd7, 0x77, 0x91, 0x2d, 0x42)
/*
* This GUID is used to pass to the kernel proper the struct screen_info
@@ -660,14 +405,34 @@ void efi_native_runtime_setup(void);
* associated with ConOut
*/
#define LINUX_EFI_ARM_SCREEN_INFO_TABLE_GUID EFI_GUID(0xe03fc20a, 0x85dc, 0x406e, 0xb9, 0x0e, 0x4a, 0xb5, 0x02, 0x37, 0x1d, 0x95)
+#define LINUX_EFI_ARM_CPU_STATE_TABLE_GUID EFI_GUID(0xef79e4aa, 0x3c3d, 0x4989, 0xb9, 0x02, 0x07, 0xa9, 0x43, 0xe5, 0x50, 0xd2)
#define LINUX_EFI_LOADER_ENTRY_GUID EFI_GUID(0x4a67b082, 0x0a4c, 0x41cf, 0xb6, 0xc7, 0x44, 0x0b, 0x29, 0xbb, 0x8c, 0x4f)
#define LINUX_EFI_RANDOM_SEED_TABLE_GUID EFI_GUID(0x1ce1e5bc, 0x7ceb, 0x42f2, 0x81, 0xe5, 0x8a, 0xad, 0xf1, 0x80, 0xf5, 0x7b)
#define LINUX_EFI_TPM_EVENT_LOG_GUID EFI_GUID(0xb7799cb0, 0xeca2, 0x4943, 0x96, 0x67, 0x1f, 0xae, 0x07, 0xb7, 0x47, 0xfa)
#define LINUX_EFI_TPM_FINAL_LOG_GUID EFI_GUID(0x1e2ed096, 0x30e2, 0x4254, 0xbd, 0x89, 0x86, 0x3b, 0xbe, 0xf8, 0x23, 0x25)
#define LINUX_EFI_MEMRESERVE_TABLE_GUID EFI_GUID(0x888eb0c6, 0x8ede, 0x4ff5, 0xa8, 0xf0, 0x9a, 0xee, 0x5c, 0xb9, 0x77, 0xc2)
+#define LINUX_EFI_INITRD_MEDIA_GUID EFI_GUID(0x5568e427, 0x68fc, 0x4f3d, 0xac, 0x74, 0xca, 0x55, 0x52, 0x31, 0xcc, 0x68)
+#define LINUX_EFI_ZBOOT_MEDIA_GUID EFI_GUID(0xe565a30d, 0x47da, 0x4dbd, 0xb3, 0x54, 0x9b, 0xb5, 0xc8, 0x4f, 0x8b, 0xe2)
+#define LINUX_EFI_MOK_VARIABLE_TABLE_GUID EFI_GUID(0xc451ed2b, 0x9694, 0x45d3, 0xba, 0xba, 0xed, 0x9f, 0x89, 0x88, 0xa3, 0x89)
+#define LINUX_EFI_COCO_SECRET_AREA_GUID EFI_GUID(0xadf956ad, 0xe98c, 0x484c, 0xae, 0x11, 0xb5, 0x1c, 0x7d, 0x33, 0x64, 0x47)
+#define LINUX_EFI_BOOT_MEMMAP_GUID EFI_GUID(0x800f683f, 0xd08b, 0x423a, 0xa2, 0x93, 0x96, 0x5c, 0x3c, 0x6f, 0xe2, 0xb4)
+
+#define RISCV_EFI_BOOT_PROTOCOL_GUID EFI_GUID(0xccd15fec, 0x6f73, 0x4eec, 0x83, 0x95, 0x3e, 0x69, 0xe4, 0xb9, 0x40, 0xbf)
+
+/*
+ * This GUID may be installed onto the kernel image's handle as a NULL protocol
+ * to signal to the stub that the placement of the image should be respected,
+ * and moving the image in physical memory is undesirable. To ensure
+ * compatibility with 64k pages kernels with virtually mapped stacks, and to
+ * avoid defeating physical randomization, this protocol should only be
+ * installed if the image was placed at a randomized 128k aligned address in
+ * memory.
+ */
+#define LINUX_EFI_LOADED_IMAGE_FIXED_GUID EFI_GUID(0xf5a37b6d, 0x3344, 0x42a5, 0xb6, 0xbb, 0x97, 0x86, 0x48, 0xc1, 0x89, 0x0a)
/* OEM GUIDs */
#define DELLEMC_EFI_RCI2_TABLE_GUID EFI_GUID(0x2d9f28a2, 0xa886, 0x456a, 0x97, 0xa8, 0xf1, 0x1e, 0xf2, 0x4f, 0xf4, 0x55)
+#define AMD_SEV_MEM_ENCRYPT_GUID EFI_GUID(0x0cf29b71, 0x9e51, 0x433a, 0xa3, 0xb7, 0x81, 0xf3, 0xab, 0x16, 0xb8, 0x75)
typedef struct {
efi_guid_t guid;
@@ -689,11 +454,12 @@ typedef union {
typedef struct {
efi_guid_t guid;
- const char *name;
unsigned long *ptr;
+ const char name[16];
} efi_config_table_type_t;
#define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL)
+#define EFI_DXE_SERVICES_TABLE_SIGNATURE ((u64)0x565245535f455844ULL)
#define EFI_2_30_SYSTEM_TABLE_REVISION ((2 << 16) | (30))
#define EFI_2_20_SYSTEM_TABLE_REVISION ((2 << 16) | (20))
@@ -736,6 +502,7 @@ typedef struct {
u32 tables;
} efi_system_table_32_t;
+typedef union efi_simple_text_input_protocol efi_simple_text_input_protocol_t;
typedef union efi_simple_text_output_protocol efi_simple_text_output_protocol_t;
typedef union {
@@ -744,7 +511,7 @@ typedef union {
unsigned long fw_vendor; /* physical addr of CHAR16 vendor string */
u32 fw_revision;
unsigned long con_in_handle;
- unsigned long con_in;
+ efi_simple_text_input_protocol_t *con_in;
unsigned long con_out_handle;
efi_simple_text_output_protocol_t *con_out;
unsigned long stderr_handle;
@@ -757,6 +524,15 @@ typedef union {
efi_system_table_32_t mixed_mode;
} efi_system_table_t;
+struct efi_boot_memmap {
+ unsigned long map_size;
+ unsigned long desc_size;
+ u32 desc_ver;
+ unsigned long map_key;
+ unsigned long buff_size;
+ efi_memory_desc_t map[];
+};
+
/*
* Architecture independent structure for describing a memory map for the
* benefit of efi_memmap_init_early(), and for passing context between
@@ -788,74 +564,6 @@ struct efi_mem_range {
u64 attribute;
};
-struct efi_fdt_params {
- u64 system_table;
- u64 mmap;
- u32 mmap_size;
- u32 desc_size;
- u32 desc_ver;
-};
-
-typedef struct {
- u32 revision;
- efi_handle_t parent_handle;
- efi_system_table_t *system_table;
- efi_handle_t device_handle;
- void *file_path;
- void *reserved;
- u32 load_options_size;
- void *load_options;
- void *image_base;
- __aligned_u64 image_size;
- unsigned int image_code_type;
- unsigned int image_data_type;
- efi_status_t ( __efiapi *unload)(efi_handle_t image_handle);
-} efi_loaded_image_t;
-
-typedef struct {
- u64 size;
- u64 file_size;
- u64 phys_size;
- efi_time_t create_time;
- efi_time_t last_access_time;
- efi_time_t modification_time;
- __aligned_u64 attribute;
- efi_char16_t filename[1];
-} efi_file_info_t;
-
-typedef struct efi_file_handle efi_file_handle_t;
-
-struct efi_file_handle {
- u64 revision;
- efi_status_t (__efiapi *open)(efi_file_handle_t *,
- efi_file_handle_t **,
- efi_char16_t *, u64, u64);
- efi_status_t (__efiapi *close)(efi_file_handle_t *);
- void *delete;
- efi_status_t (__efiapi *read)(efi_file_handle_t *,
- unsigned long *, void *);
- void *write;
- void *get_position;
- void *set_position;
- efi_status_t (__efiapi *get_info)(efi_file_handle_t *,
- efi_guid_t *, unsigned long *,
- void *);
- void *set_info;
- void *flush;
-};
-
-typedef struct efi_file_io_interface efi_file_io_interface_t;
-
-struct efi_file_io_interface {
- u64 revision;
- int (__efiapi *open_volume)(efi_file_io_interface_t *,
- efi_file_handle_t **);
-};
-
-#define EFI_FILE_MODE_READ 0x0000000000000001
-#define EFI_FILE_MODE_WRITE 0x0000000000000002
-#define EFI_FILE_MODE_CREATE 0x8000000000000000
-
typedef struct {
u32 version;
u32 length;
@@ -865,6 +573,14 @@ typedef struct {
#define EFI_PROPERTIES_TABLE_VERSION 0x00010000
#define EFI_PROPERTIES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA 0x1
+typedef struct {
+ u16 version;
+ u16 length;
+ u32 runtime_services_supported;
+} efi_rt_properties_table_t;
+
+#define EFI_RT_PROPERTIES_TABLE_VERSION 0x1
+
#define EFI_INVALID_TABLE_ADDR (~0UL)
typedef struct {
@@ -896,48 +612,65 @@ typedef struct {
efi_time_t time_of_revocation;
} efi_cert_x509_sha256_t;
+extern unsigned long __ro_after_init efi_rng_seed; /* RNG Seed table */
+
/*
* All runtime access to EFI goes through this structure:
*/
extern struct efi {
- efi_system_table_t *systab; /* EFI system table */
- unsigned int runtime_version; /* Runtime services version */
- unsigned long mps; /* MPS table */
- unsigned long acpi; /* ACPI table (IA64 ext 0.71) */
- unsigned long acpi20; /* ACPI table (ACPI 2.0) */
- unsigned long smbios; /* SMBIOS table (32 bit entry point) */
- unsigned long smbios3; /* SMBIOS table (64 bit entry point) */
- unsigned long boot_info; /* boot info table */
- unsigned long hcdp; /* HCDP table */
- unsigned long uga; /* UGA table */
- unsigned long fw_vendor; /* fw_vendor */
- unsigned long runtime; /* runtime table */
- unsigned long config_table; /* config tables */
- unsigned long esrt; /* ESRT table */
- unsigned long properties_table; /* properties table */
- unsigned long mem_attr_table; /* memory attributes table */
- unsigned long rng_seed; /* UEFI firmware random seed */
- unsigned long tpm_log; /* TPM2 Event Log table */
- unsigned long tpm_final_log; /* TPM2 Final Events Log table */
- unsigned long mem_reserve; /* Linux EFI memreserve table */
- efi_get_time_t *get_time;
- efi_set_time_t *set_time;
- efi_get_wakeup_time_t *get_wakeup_time;
- efi_set_wakeup_time_t *set_wakeup_time;
- efi_get_variable_t *get_variable;
- efi_get_next_variable_t *get_next_variable;
- efi_set_variable_t *set_variable;
- efi_set_variable_t *set_variable_nonblocking;
- efi_query_variable_info_t *query_variable_info;
- efi_query_variable_info_t *query_variable_info_nonblocking;
- efi_update_capsule_t *update_capsule;
- efi_query_capsule_caps_t *query_capsule_caps;
- efi_get_next_high_mono_count_t *get_next_high_mono_count;
- efi_reset_system_t *reset_system;
- struct efi_memory_map memmap;
- unsigned long flags;
+ const efi_runtime_services_t *runtime; /* EFI runtime services table */
+ unsigned int runtime_version; /* Runtime services version */
+ unsigned int runtime_supported_mask;
+
+ unsigned long acpi; /* ACPI table (IA64 ext 0.71) */
+ unsigned long acpi20; /* ACPI table (ACPI 2.0) */
+ unsigned long smbios; /* SMBIOS table (32 bit entry point) */
+ unsigned long smbios3; /* SMBIOS table (64 bit entry point) */
+ unsigned long esrt; /* ESRT table */
+ unsigned long tpm_log; /* TPM2 Event Log table */
+ unsigned long tpm_final_log; /* TPM2 Final Events Log table */
+ unsigned long mokvar_table; /* MOK variable config table */
+ unsigned long coco_secret; /* Confidential computing secret table */
+
+ efi_get_time_t *get_time;
+ efi_set_time_t *set_time;
+ efi_get_wakeup_time_t *get_wakeup_time;
+ efi_set_wakeup_time_t *set_wakeup_time;
+ efi_get_variable_t *get_variable;
+ efi_get_next_variable_t *get_next_variable;
+ efi_set_variable_t *set_variable;
+ efi_set_variable_t *set_variable_nonblocking;
+ efi_query_variable_info_t *query_variable_info;
+ efi_query_variable_info_t *query_variable_info_nonblocking;
+ efi_update_capsule_t *update_capsule;
+ efi_query_capsule_caps_t *query_capsule_caps;
+ efi_get_next_high_mono_count_t *get_next_high_mono_count;
+ efi_reset_system_t *reset_system;
+
+ struct efi_memory_map memmap;
+ unsigned long flags;
} efi;
+#define EFI_RT_SUPPORTED_GET_TIME 0x0001
+#define EFI_RT_SUPPORTED_SET_TIME 0x0002
+#define EFI_RT_SUPPORTED_GET_WAKEUP_TIME 0x0004
+#define EFI_RT_SUPPORTED_SET_WAKEUP_TIME 0x0008
+#define EFI_RT_SUPPORTED_GET_VARIABLE 0x0010
+#define EFI_RT_SUPPORTED_GET_NEXT_VARIABLE_NAME 0x0020
+#define EFI_RT_SUPPORTED_SET_VARIABLE 0x0040
+#define EFI_RT_SUPPORTED_SET_VIRTUAL_ADDRESS_MAP 0x0080
+#define EFI_RT_SUPPORTED_CONVERT_POINTER 0x0100
+#define EFI_RT_SUPPORTED_GET_NEXT_HIGH_MONOTONIC_COUNT 0x0200
+#define EFI_RT_SUPPORTED_RESET_SYSTEM 0x0400
+#define EFI_RT_SUPPORTED_UPDATE_CAPSULE 0x0800
+#define EFI_RT_SUPPORTED_QUERY_CAPSULE_CAPABILITIES 0x1000
+#define EFI_RT_SUPPORTED_QUERY_VARIABLE_INFO 0x2000
+
+#define EFI_RT_SUPPORTED_ALL 0x3fff
+
+#define EFI_RT_SUPPORTED_TIME_SERVICES 0x000f
+#define EFI_RT_SUPPORTED_VARIABLE_SERVICES 0x0070
+
extern struct mm_struct efi_mm;
static inline int
@@ -954,11 +687,11 @@ efi_guid_to_str(efi_guid_t *guid, char *out)
}
extern void efi_init (void);
-extern void *efi_get_pal_addr (void);
-extern void efi_map_pal_code (void);
-extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg);
-extern void efi_gettimeofday (struct timespec64 *ts);
+#ifdef CONFIG_EFI
extern void efi_enter_virtual_mode (void); /* switch EFI to virtual mode, if possible */
+#else
+static inline void efi_enter_virtual_mode (void) {}
+#endif
#ifdef CONFIG_X86
extern efi_status_t efi_query_variable_store(u32 attributes,
unsigned long size,
@@ -987,14 +720,18 @@ extern int __init efi_memmap_split_count(efi_memory_desc_t *md,
extern void __init efi_memmap_insert(struct efi_memory_map *old_memmap,
void *buf, struct efi_mem_range *mem);
-extern int efi_config_init(efi_config_table_type_t *arch_tables);
#ifdef CONFIG_EFI_ESRT
extern void __init efi_esrt_init(void);
#else
static inline void efi_esrt_init(void) { }
#endif
-extern int efi_config_parse_tables(void *config_tables, int count, int sz,
- efi_config_table_type_t *arch_tables);
+extern int efi_config_parse_tables(const efi_config_table_t *config_tables,
+ int count,
+ const efi_config_table_type_t *arch_tables);
+extern int efi_systab_check_header(const efi_table_hdr_t *systab_hdr,
+ int min_major_version);
+extern void efi_systab_report_header(const efi_table_hdr_t *systab_hdr,
+ unsigned long fw_vendor);
extern u64 efi_get_iobase (void);
extern int efi_mem_type(unsigned long phys_addr);
extern u64 efi_mem_attributes (unsigned long phys_addr);
@@ -1006,7 +743,7 @@ extern void efi_mem_reserve(phys_addr_t addr, u64 size);
extern int efi_mem_reserve_persistent(phys_addr_t addr, u64 size);
extern void efi_initialize_iomem_resources(struct resource *code_resource,
struct resource *data_resource, struct resource *bss_resource);
-extern int efi_get_fdt_params(struct efi_fdt_params *params);
+extern u64 efi_get_fdt_params(struct efi_memory_map_data *data);
extern struct kobject *efi_kobj;
extern int efi_reboot_quirk_mode;
@@ -1018,6 +755,8 @@ extern void __init efi_fake_memmap(void);
static inline void efi_fake_memmap(void) { }
#endif
+extern unsigned long efi_mem_attr_table;
+
/*
* efi_memattr_perm_setter - arch specific callback function passed into
* efi_memattr_apply_permissions() that updates the
@@ -1124,6 +863,7 @@ extern int __init efi_setup_pcdp_console(char *);
#define EFI_NX_PE_DATA 9 /* Can runtime data regions be mapped non-executable? */
#define EFI_MEM_ATTR 10 /* Did firmware publish an EFI_MEMORY_ATTRIBUTES table? */
#define EFI_MEM_NO_SOFT_RESERVE 11 /* Is the kernel configured to ignore soft reservations? */
+#define EFI_PRESERVE_BS_REGIONS 12 /* Are EFI boot-services memory segments available? */
#ifdef CONFIG_EFI
/*
@@ -1142,6 +882,12 @@ static inline bool __pure efi_soft_reserve_enabled(void)
return IS_ENABLED(CONFIG_EFI_SOFT_RESERVE)
&& __efi_soft_reserve_enabled();
}
+
+static inline bool efi_rt_services_supported(unsigned int mask)
+{
+ return (efi.runtime_supported_mask & mask) == mask;
+}
+extern void efi_find_mirror(void);
#else
static inline bool efi_enabled(int feature)
{
@@ -1150,16 +896,17 @@ static inline bool efi_enabled(int feature)
static inline void
efi_reboot(enum reboot_mode reboot_mode, const char *__unused) {}
-static inline bool
-efi_capsule_pending(int *reset_type)
+static inline bool efi_soft_reserve_enabled(void)
{
return false;
}
-static inline bool efi_soft_reserve_enabled(void)
+static inline bool efi_rt_services_supported(unsigned int mask)
{
return false;
}
+
+static inline void efi_find_mirror(void) {}
#endif
extern int efi_status_to_err(efi_status_t status);
@@ -1175,7 +922,7 @@ extern int efi_status_to_err(efi_status_t status);
#define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS 0x0000000000000020
#define EFI_VARIABLE_APPEND_WRITE 0x0000000000000040
-#define EFI_VARIABLE_MASK (EFI_VARIABLE_NON_VOLATILE | \
+#define EFI_VARIABLE_MASK (EFI_VARIABLE_NON_VOLATILE | \
EFI_VARIABLE_BOOTSERVICE_ACCESS | \
EFI_VARIABLE_RUNTIME_ACCESS | \
EFI_VARIABLE_HARDWARE_ERROR_RECORD | \
@@ -1189,13 +936,6 @@ extern int efi_status_to_err(efi_status_t status);
#define EFI_VARIABLE_GUID_LEN UUID_STRING_LEN
/*
- * The type of search to perform when calling boottime->locate_handle
- */
-#define EFI_LOCATE_ALL_HANDLES 0
-#define EFI_LOCATE_BY_REGISTER_NOTIFY 1
-#define EFI_LOCATE_BY_PROTOCOL 2
-
-/*
* EFI Device Path information
*/
#define EFI_DEV_HW 0x01
@@ -1227,6 +967,7 @@ extern int efi_status_to_err(efi_status_t status);
#define EFI_DEV_MEDIA_VENDOR 3
#define EFI_DEV_MEDIA_FILE 4
#define EFI_DEV_MEDIA_PROTOCOL 5
+#define EFI_DEV_MEDIA_REL_OFFSET 8
#define EFI_DEV_BIOS_BOOT 0x05
#define EFI_DEV_END_PATH 0x7F
#define EFI_DEV_END_PATH2 0xFF
@@ -1234,30 +975,55 @@ extern int efi_status_to_err(efi_status_t status);
#define EFI_DEV_END_ENTIRE 0xFF
struct efi_generic_dev_path {
- u8 type;
- u8 sub_type;
- u16 length;
-} __attribute ((packed));
+ u8 type;
+ u8 sub_type;
+ u16 length;
+} __packed;
+
+struct efi_acpi_dev_path {
+ struct efi_generic_dev_path header;
+ u32 hid;
+ u32 uid;
+} __packed;
+
+struct efi_pci_dev_path {
+ struct efi_generic_dev_path header;
+ u8 fn;
+ u8 dev;
+} __packed;
+
+struct efi_vendor_dev_path {
+ struct efi_generic_dev_path header;
+ efi_guid_t vendorguid;
+ u8 vendordata[];
+} __packed;
+
+struct efi_rel_offset_dev_path {
+ struct efi_generic_dev_path header;
+ u32 reserved;
+ u64 starting_offset;
+ u64 ending_offset;
+} __packed;
+
+struct efi_mem_mapped_dev_path {
+ struct efi_generic_dev_path header;
+ u32 memory_type;
+ u64 starting_addr;
+ u64 ending_addr;
+} __packed;
struct efi_dev_path {
- u8 type; /* can be replaced with unnamed */
- u8 sub_type; /* struct efi_generic_dev_path; */
- u16 length; /* once we've moved to -std=c11 */
union {
- struct {
- u32 hid;
- u32 uid;
- } acpi;
- struct {
- u8 fn;
- u8 dev;
- } pci;
+ struct efi_generic_dev_path header;
+ struct efi_acpi_dev_path acpi;
+ struct efi_pci_dev_path pci;
+ struct efi_vendor_dev_path vendor;
+ struct efi_rel_offset_dev_path rel_offset;
};
-} __attribute ((packed));
+} __packed;
-#if IS_ENABLED(CONFIG_EFI_DEV_PATH_PARSER)
-struct device *efi_get_device_by_path(struct efi_dev_path **node, size_t *len);
-#endif
+struct device *efi_get_device_by_path(const struct efi_dev_path **node,
+ size_t *len);
static inline void memrange_efi_to_native(u64 *addr, u64 *npages)
{
@@ -1295,158 +1061,32 @@ struct efivars {
#define EFI_VAR_NAME_LEN 1024
-struct efi_variable {
- efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)];
- efi_guid_t VendorGuid;
- unsigned long DataSize;
- __u8 Data[1024];
- efi_status_t Status;
- __u32 Attributes;
-} __attribute__((packed));
-
-struct efivar_entry {
- struct efi_variable var;
- struct list_head list;
- struct kobject kobj;
- bool scanning;
- bool deleting;
-};
-
-union efi_simple_text_output_protocol {
- struct {
- void *reset;
- efi_status_t (__efiapi *output_string)(efi_simple_text_output_protocol_t *,
- efi_char16_t *);
- void *test_string;
- };
- struct {
- u32 reset;
- u32 output_string;
- u32 test_string;
- } mixed_mode;
-};
-
-#define PIXEL_RGB_RESERVED_8BIT_PER_COLOR 0
-#define PIXEL_BGR_RESERVED_8BIT_PER_COLOR 1
-#define PIXEL_BIT_MASK 2
-#define PIXEL_BLT_ONLY 3
-#define PIXEL_FORMAT_MAX 4
-
-typedef struct {
- u32 red_mask;
- u32 green_mask;
- u32 blue_mask;
- u32 reserved_mask;
-} efi_pixel_bitmask_t;
-
-typedef struct {
- u32 version;
- u32 horizontal_resolution;
- u32 vertical_resolution;
- int pixel_format;
- efi_pixel_bitmask_t pixel_information;
- u32 pixels_per_scan_line;
-} efi_graphics_output_mode_info_t;
-
-typedef union efi_graphics_output_protocol_mode efi_graphics_output_protocol_mode_t;
-
-union efi_graphics_output_protocol_mode {
- struct {
- u32 max_mode;
- u32 mode;
- efi_graphics_output_mode_info_t *info;
- unsigned long size_of_info;
- efi_physical_addr_t frame_buffer_base;
- unsigned long frame_buffer_size;
- };
- struct {
- u32 max_mode;
- u32 mode;
- u32 info;
- u32 size_of_info;
- u64 frame_buffer_base;
- u32 frame_buffer_size;
- } mixed_mode;
-};
-
-typedef union efi_graphics_output_protocol efi_graphics_output_protocol_t;
-
-union efi_graphics_output_protocol {
- struct {
- void *query_mode;
- void *set_mode;
- void *blt;
- efi_graphics_output_protocol_mode_t *mode;
- };
- struct {
- u32 query_mode;
- u32 set_mode;
- u32 blt;
- u32 mode;
- } mixed_mode;
-};
-
-extern struct list_head efivar_sysfs_list;
-
-static inline void
-efivar_unregister(struct efivar_entry *var)
-{
- kobject_put(&var->kobj);
-}
-
int efivars_register(struct efivars *efivars,
const struct efivar_operations *ops,
struct kobject *kobject);
int efivars_unregister(struct efivars *efivars);
struct kobject *efivars_kobject(void);
-int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *),
- void *data, bool duplicates, struct list_head *head);
-
-int efivar_entry_add(struct efivar_entry *entry, struct list_head *head);
-int efivar_entry_remove(struct efivar_entry *entry);
-
-int __efivar_entry_delete(struct efivar_entry *entry);
-int efivar_entry_delete(struct efivar_entry *entry);
-
-int efivar_entry_size(struct efivar_entry *entry, unsigned long *size);
-int __efivar_entry_get(struct efivar_entry *entry, u32 *attributes,
- unsigned long *size, void *data);
-int efivar_entry_get(struct efivar_entry *entry, u32 *attributes,
- unsigned long *size, void *data);
-int efivar_entry_set(struct efivar_entry *entry, u32 attributes,
- unsigned long size, void *data, struct list_head *head);
-int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes,
- unsigned long *size, void *data, bool *set);
-int efivar_entry_set_safe(efi_char16_t *name, efi_guid_t vendor, u32 attributes,
- bool block, unsigned long size, void *data);
+int efivar_supports_writes(void);
-int efivar_entry_iter_begin(void);
-void efivar_entry_iter_end(void);
+int efivar_lock(void);
+int efivar_trylock(void);
+void efivar_unlock(void);
-int __efivar_entry_iter(int (*func)(struct efivar_entry *, void *),
- struct list_head *head, void *data,
- struct efivar_entry **prev);
-int efivar_entry_iter(int (*func)(struct efivar_entry *, void *),
- struct list_head *head, void *data);
+efi_status_t efivar_get_variable(efi_char16_t *name, efi_guid_t *vendor,
+ u32 *attr, unsigned long *size, void *data);
-struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid,
- struct list_head *head, bool remove);
+efi_status_t efivar_get_next_variable(unsigned long *name_size,
+ efi_char16_t *name, efi_guid_t *vendor);
-bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data,
- unsigned long data_size);
-bool efivar_variable_is_removable(efi_guid_t vendor, const char *name,
- size_t len);
+efi_status_t efivar_set_variable_locked(efi_char16_t *name, efi_guid_t *vendor,
+ u32 attr, unsigned long data_size,
+ void *data, bool nonblocking);
-extern struct work_struct efivar_work;
-void efivar_run_worker(void);
+efi_status_t efivar_set_variable(efi_char16_t *name, efi_guid_t *vendor,
+ u32 attr, unsigned long data_size, void *data);
-#if defined(CONFIG_EFI_VARS) || defined(CONFIG_EFI_VARS_MODULE)
-int efivars_sysfs_init(void);
-
-#define EFIVARS_DATA_SIZE_MAX 1024
-
-#endif /* CONFIG_EFI_VARS */
+#if IS_ENABLED(CONFIG_EFI_CAPSULE_LOADER)
extern bool efi_capsule_pending(int *reset_type);
extern int efi_capsule_supported(efi_guid_t guid, u32 flags,
@@ -1454,6 +1094,9 @@ extern int efi_capsule_supported(efi_guid_t guid, u32 flags,
extern int efi_capsule_update(efi_capsule_header_t *capsule,
phys_addr_t *pages);
+#else
+static inline bool efi_capsule_pending(int *reset_type) { return false; }
+#endif
#ifdef CONFIG_EFI_RUNTIME_MAP
int efi_runtime_map_init(struct kobject *);
@@ -1483,52 +1126,6 @@ static inline int efi_runtime_map_copy(void *buf, size_t bufsz)
#endif
-/* prototypes shared between arch specific and generic stub code */
-
-void efi_printk(char *str);
-
-void efi_free(unsigned long size, unsigned long addr);
-
-char *efi_convert_cmdline(efi_loaded_image_t *image, int *cmd_line_len);
-
-efi_status_t efi_get_memory_map(struct efi_boot_memmap *map);
-
-efi_status_t efi_low_alloc_above(unsigned long size, unsigned long align,
- unsigned long *addr, unsigned long min);
-
-static inline
-efi_status_t efi_low_alloc(unsigned long size, unsigned long align,
- unsigned long *addr)
-{
- /*
- * Don't allocate at 0x0. It will confuse code that
- * checks pointers against NULL. Skip the first 8
- * bytes so we start at a nice even number.
- */
- return efi_low_alloc_above(size, align, addr, 0x8);
-}
-
-efi_status_t efi_high_alloc(unsigned long size, unsigned long align,
- unsigned long *addr, unsigned long max);
-
-efi_status_t efi_relocate_kernel(unsigned long *image_addr,
- unsigned long image_size,
- unsigned long alloc_size,
- unsigned long preferred_addr,
- unsigned long alignment,
- unsigned long min_addr);
-
-efi_status_t handle_cmdline_files(efi_loaded_image_t *image,
- char *cmd_line, char *option_string,
- unsigned long max_addr,
- unsigned long *load_addr,
- unsigned long *load_size);
-
-efi_status_t efi_parse_options(char const *cmdline);
-
-efi_status_t efi_setup_gop(struct screen_info *si, efi_guid_t *proto,
- unsigned long size);
-
#ifdef CONFIG_EFI
extern bool efi_runtime_disabled(void);
#else
@@ -1544,18 +1141,38 @@ enum efi_secureboot_mode {
efi_secureboot_mode_disabled,
efi_secureboot_mode_enabled,
};
-enum efi_secureboot_mode efi_get_secureboot(void);
-#ifdef CONFIG_RESET_ATTACK_MITIGATION
-void efi_enable_reset_attack_mitigation(void);
+static inline
+enum efi_secureboot_mode efi_get_secureboot_mode(efi_get_variable_t *get_var)
+{
+ u8 secboot, setupmode = 0;
+ efi_status_t status;
+ unsigned long size;
+
+ size = sizeof(secboot);
+ status = get_var(L"SecureBoot", &EFI_GLOBAL_VARIABLE_GUID, NULL, &size,
+ &secboot);
+ if (status == EFI_NOT_FOUND)
+ return efi_secureboot_mode_disabled;
+ if (status != EFI_SUCCESS)
+ return efi_secureboot_mode_unknown;
+
+ size = sizeof(setupmode);
+ get_var(L"SetupMode", &EFI_GLOBAL_VARIABLE_GUID, NULL, &size, &setupmode);
+ if (secboot == 0 || setupmode == 1)
+ return efi_secureboot_mode_disabled;
+ return efi_secureboot_mode_enabled;
+}
+
+#ifdef CONFIG_EFI_EMBEDDED_FIRMWARE
+void efi_check_for_embedded_firmwares(void);
#else
-static inline void
-efi_enable_reset_attack_mitigation(void) { }
+static inline void efi_check_for_embedded_firmwares(void) { }
#endif
efi_status_t efi_random_get_seed(void);
-void efi_retrieve_tpm2_eventlog(void);
+#define arch_efi_call_virt(p, f, args...) ((p)->f(args))
/*
* Arch code can implement the following three template macros, avoiding
@@ -1606,16 +1223,7 @@ void efi_retrieve_tpm2_eventlog(void);
arch_efi_call_virt_teardown(); \
})
-typedef efi_status_t (*efi_exit_boot_map_processing)(
- struct efi_boot_memmap *map,
- void *priv);
-
-efi_status_t efi_exit_boot_services(void *handle,
- struct efi_boot_memmap *map,
- void *priv,
- efi_exit_boot_map_processing priv_func);
-
-#define EFI_RANDOM_SEED_SIZE 64U
+#define EFI_RANDOM_SEED_SIZE 32U // BLAKE2S_HASH_SIZE
struct linux_efi_random_seed {
u32 size;
@@ -1692,15 +1300,61 @@ struct linux_efi_memreserve {
struct {
phys_addr_t base;
phys_addr_t size;
- } entry[0];
+ } entry[];
};
-#define EFI_MEMRESERVE_SIZE(count) (sizeof(struct linux_efi_memreserve) + \
- (count) * sizeof(((struct linux_efi_memreserve *)0)->entry[0]))
-
#define EFI_MEMRESERVE_COUNT(size) (((size) - sizeof(struct linux_efi_memreserve)) \
- / sizeof(((struct linux_efi_memreserve *)0)->entry[0]))
+ / sizeof_field(struct linux_efi_memreserve, entry[0]))
+
+void __init efi_arch_mem_reserve(phys_addr_t addr, u64 size);
+
+char *efi_systab_show_arch(char *str);
+
+/*
+ * The LINUX_EFI_MOK_VARIABLE_TABLE_GUID config table can be provided
+ * to the kernel by an EFI boot loader. The table contains a packed
+ * sequence of these entries, one for each named MOK variable.
+ * The sequence is terminated by an entry with a completely NULL
+ * name and 0 data size.
+ */
+struct efi_mokvar_table_entry {
+ char name[256];
+ u64 data_size;
+ u8 data[];
+} __attribute((packed));
+
+#ifdef CONFIG_LOAD_UEFI_KEYS
+extern void __init efi_mokvar_table_init(void);
+extern struct efi_mokvar_table_entry *efi_mokvar_entry_next(
+ struct efi_mokvar_table_entry **mokvar_entry);
+extern struct efi_mokvar_table_entry *efi_mokvar_entry_find(const char *name);
+#else
+static inline void efi_mokvar_table_init(void) { }
+static inline struct efi_mokvar_table_entry *efi_mokvar_entry_next(
+ struct efi_mokvar_table_entry **mokvar_entry)
+{
+ return NULL;
+}
+static inline struct efi_mokvar_table_entry *efi_mokvar_entry_find(
+ const char *name)
+{
+ return NULL;
+}
+#endif
+
+extern void efifb_setup_from_dmi(struct screen_info *si, const char *opt);
+
+struct linux_efi_coco_secret_area {
+ u64 base_pa;
+ u64 size;
+};
+
+struct linux_efi_initrd {
+ unsigned long base;
+ unsigned long size;
+};
-void efi_pci_disable_bridge_busmaster(void);
+/* Header of a populated EFI secret area */
+#define EFI_SECRET_TABLE_HEADER_GUID EFI_GUID(0x1e74f542, 0x71dd, 0x4d66, 0x96, 0x3e, 0xef, 0x42, 0x87, 0xff, 0x17, 0x3b)
#endif /* _LINUX_EFI_H */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.