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efi_loader: capsule: support firmware update

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A capsule tagged with the guid, EFI_FIRMWARE_MANAGEMENT_CAPSULE_ID_GUID,
is handled as a firmware update object.
What efi_update_capsule() basically does is to load any firmware management
protocol (or fmp) drivers contained in a capsule, find out an appropriate
fmp driver and then invoke its set_image() interface against each binary
in a capsule.
In this commit, however, loading drivers is not supported.

The result of applying a capsule is set to be stored in "CapsuleXXXX"
variable, but its implementation is deferred to a fmp driver.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
This commit is contained in:
AKASHI Takahiro 2020-11-30 18:12:11 +09:00 • committed by Heinrich Schuchardt
parent ed9349c697
commit 8d99026f06
5 changed files with 383 additions and 12 deletions
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129
include/efi_api.h
View file

@ -217,6 +217,9 @@ enum efi_reset_type {
#define CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE 0x00020000
#define CAPSULE_FLAGS_INITIATE_RESET 0x00040000
#define CAPSULE_SUPPORT_AUTHENTICATION 0x0000000000000001
#define CAPSULE_SUPPORT_DEPENDENCY 0x0000000000000002
#define EFI_CAPSULE_REPORT_GUID \
EFI_GUID(0x39b68c46, 0xf7fb, 0x441b, 0xb6, 0xec, \
0x16, 0xb0, 0xf6, 0x98, 0x21, 0xf3)
@ -225,6 +228,10 @@ enum efi_reset_type {
EFI_GUID(0xde9f0ec, 0x88b6, 0x428f, 0x97, 0x7a, \
0x25, 0x8f, 0x1d, 0xe, 0x5e, 0x72)
#define EFI_FIRMWARE_MANAGEMENT_CAPSULE_ID_GUID \
EFI_GUID(0x6dcbd5ed, 0xe82d, 0x4c44, 0xbd, 0xa1, \
0x71, 0x94, 0x19, 0x9a, 0xd9, 0x2a)
struct efi_capsule_header {
efi_guid_t capsule_guid;
u32 header_size;
@ -253,6 +260,33 @@ struct efi_memory_range_capsule {
struct efi_memory_range memory_ranges[];
} __packed;
struct efi_firmware_management_capsule_header {
u32 version;
u16 embedded_driver_count;
u16 payload_item_count;
u64 item_offset_list[];
} __packed;
struct efi_firmware_management_capsule_image_header {
u32 version;
efi_guid_t update_image_type_id;
u8 update_image_index;
u8 reserved[3];
u32 update_image_size;
u32 update_vendor_code_size;
u64 update_hardware_instance;
u64 image_capsule_support;
} __packed;
struct efi_capsule_result_variable_fmp {
u16 version;
u8 payload_index;
u8 update_image_index;
efi_guid_t update_image_type_id;
// u16 capsule_file_name[];
// u16 capsule_target[];
} __packed;
#define EFI_RT_SUPPORTED_GET_TIME 0x0001
#define EFI_RT_SUPPORTED_SET_TIME 0x0002
#define EFI_RT_SUPPORTED_GET_WAKEUP_TIME 0x0004
@ -1812,4 +1846,99 @@ struct efi_signature_list {
/* struct efi_signature_data signatures[...][signature_size]; */
} __attribute__((__packed__));
/*
* Firmware management protocol
*/
#define EFI_FIRMWARE_MANAGEMENT_PROTOCOL_GUID \
EFI_GUID(0x86c77a67, 0x0b97, 0x4633, 0xa1, 0x87, \
0x49, 0x10, 0x4d, 0x06, 0x85, 0xc7)
#define IMAGE_ATTRIBUTE_IMAGE_UPDATABLE 0x0000000000000001
#define IMAGE_ATTRIBUTE_RESET_REQUIRED 0x0000000000000002
#define IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED 0x0000000000000004
#define IMAGE_ATTRIBUTE_IN_USE 0x0000000000000008
#define IMAGE_ATTRIBUTE_UEFI_IMAGE 0x0000000000000010
#define IMAGE_ATTRIBUTE_DEPENDENCY 0x0000000000000020
#define IMAGE_COMPATIBILITY_CHECK_SUPPORTED 0x0000000000000001
#define IMAGE_UPDATABLE_VALID 0x0000000000000001
#define IMAGE_UPDATABLE_INVALID 0x0000000000000002
#define IMAGE_UPDATABLE_INVALID_TYPE 0x0000000000000004
#define IMAGE_UPDATABLE_INVALID_OLLD 0x0000000000000008
#define IMAGE_UPDATABLE_VALID_WITH_VENDOR_CODE 0x0000000000000010
#define PACKAGE_ATTRIBUTE_VERSION_UPDATABLE 0x0000000000000001
#define PACKAGE_ATTRIBUTE_RESET_REQUIRED 0x0000000000000002
#define PACKAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED 0x0000000000000004
#define EFI_FIRMWARE_IMAGE_DESCRIPTOR_VERSION 4
typedef struct efi_firmware_image_dependencies {
u8 dependencies[0];
} efi_firmware_image_dep_t;
struct efi_firmware_image_descriptor {
u8 image_index;
efi_guid_t image_type_id;
u64 image_id;
u16 *image_id_name;
u32 version;
u16 *version_name;
efi_uintn_t size;
u64 attributes_supported;
u64 attributes_setting;
u64 compatibilities;
u32 lowest_supported_image_version;
u32 last_attempt_version;
u32 last_attempt_status;
u64 hardware_instance;
efi_firmware_image_dep_t *dependencies;
};
struct efi_firmware_management_protocol {
efi_status_t (EFIAPI *get_image_info)(
struct efi_firmware_management_protocol *this,
efi_uintn_t *image_info_size,
struct efi_firmware_image_descriptor *image_info,
u32 *descriptor_version,
u8 *descriptor_count,
efi_uintn_t *descriptor_size,
u32 *package_version,
u16 **package_version_name);
efi_status_t (EFIAPI *get_image)(
struct efi_firmware_management_protocol *this,
u8 image_index,
void *image,
efi_uintn_t *image_size);
efi_status_t (EFIAPI *set_image)(
struct efi_firmware_management_protocol *this,
u8 image_index,
const void *image,
efi_uintn_t image_size,
const void *vendor_code,
efi_status_t (*progress)(efi_uintn_t completion),
u16 **abort_reason);
efi_status_t (EFIAPI *check_image)(
struct efi_firmware_management_protocol *this,
u8 image_index,
const void *image,
efi_uintn_t *image_size,
u32 *image_updatable);
efi_status_t (EFIAPI *get_package_info)(
struct efi_firmware_management_protocol *this,
u32 *package_version,
u16 **package_version_name,
u32 *package_version_name_maxlen,
u64 *attributes_supported,
u64 *attributes_setting);
efi_status_t (EFIAPI *set_package_info)(
struct efi_firmware_management_protocol *this,
const void *image,
efi_uintn_t *image_size,
const void *vendor_code,
u32 package_version,
const u16 *package_version_name);
};
#endif