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https://github.com/brain-hackers/u-boot-brain
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efi_loader: capsule: support firmware update
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
Heinrich Schuchardt
parent
ed9349c697
commit
8d99026f06
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@ -217,6 +217,9 @@ enum efi_reset_type {
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#define CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE 0x00020000
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#define CAPSULE_FLAGS_INITIATE_RESET 0x00040000
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#define CAPSULE_SUPPORT_AUTHENTICATION 0x0000000000000001
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#define CAPSULE_SUPPORT_DEPENDENCY 0x0000000000000002
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#define EFI_CAPSULE_REPORT_GUID \
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EFI_GUID(0x39b68c46, 0xf7fb, 0x441b, 0xb6, 0xec, \
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0x16, 0xb0, 0xf6, 0x98, 0x21, 0xf3)
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@ -225,6 +228,10 @@ enum efi_reset_type {
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EFI_GUID(0xde9f0ec, 0x88b6, 0x428f, 0x97, 0x7a, \
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0x25, 0x8f, 0x1d, 0xe, 0x5e, 0x72)
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#define EFI_FIRMWARE_MANAGEMENT_CAPSULE_ID_GUID \
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EFI_GUID(0x6dcbd5ed, 0xe82d, 0x4c44, 0xbd, 0xa1, \
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0x71, 0x94, 0x19, 0x9a, 0xd9, 0x2a)
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struct efi_capsule_header {
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efi_guid_t capsule_guid;
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u32 header_size;
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@ -253,6 +260,33 @@ struct efi_memory_range_capsule {
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struct efi_memory_range memory_ranges[];
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} __packed;
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struct efi_firmware_management_capsule_header {
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u32 version;
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u16 embedded_driver_count;
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u16 payload_item_count;
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u64 item_offset_list[];
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} __packed;
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struct efi_firmware_management_capsule_image_header {
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u32 version;
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efi_guid_t update_image_type_id;
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u8 update_image_index;
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u8 reserved[3];
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u32 update_image_size;
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u32 update_vendor_code_size;
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u64 update_hardware_instance;
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u64 image_capsule_support;
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} __packed;
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struct efi_capsule_result_variable_fmp {
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u16 version;
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u8 payload_index;
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u8 update_image_index;
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efi_guid_t update_image_type_id;
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// u16 capsule_file_name[];
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// u16 capsule_target[];
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} __packed;
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#define EFI_RT_SUPPORTED_GET_TIME 0x0001
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#define EFI_RT_SUPPORTED_SET_TIME 0x0002
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#define EFI_RT_SUPPORTED_GET_WAKEUP_TIME 0x0004
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@ -1812,4 +1846,99 @@ struct efi_signature_list {
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/* struct efi_signature_data signatures[...][signature_size]; */
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} __attribute__((__packed__));
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/*
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* Firmware management protocol
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*/
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#define EFI_FIRMWARE_MANAGEMENT_PROTOCOL_GUID \
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EFI_GUID(0x86c77a67, 0x0b97, 0x4633, 0xa1, 0x87, \
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0x49, 0x10, 0x4d, 0x06, 0x85, 0xc7)
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#define IMAGE_ATTRIBUTE_IMAGE_UPDATABLE 0x0000000000000001
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#define IMAGE_ATTRIBUTE_RESET_REQUIRED 0x0000000000000002
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#define IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED 0x0000000000000004
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#define IMAGE_ATTRIBUTE_IN_USE 0x0000000000000008
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#define IMAGE_ATTRIBUTE_UEFI_IMAGE 0x0000000000000010
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#define IMAGE_ATTRIBUTE_DEPENDENCY 0x0000000000000020
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#define IMAGE_COMPATIBILITY_CHECK_SUPPORTED 0x0000000000000001
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#define IMAGE_UPDATABLE_VALID 0x0000000000000001
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#define IMAGE_UPDATABLE_INVALID 0x0000000000000002
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#define IMAGE_UPDATABLE_INVALID_TYPE 0x0000000000000004
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#define IMAGE_UPDATABLE_INVALID_OLLD 0x0000000000000008
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#define IMAGE_UPDATABLE_VALID_WITH_VENDOR_CODE 0x0000000000000010
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#define PACKAGE_ATTRIBUTE_VERSION_UPDATABLE 0x0000000000000001
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#define PACKAGE_ATTRIBUTE_RESET_REQUIRED 0x0000000000000002
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#define PACKAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED 0x0000000000000004
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#define EFI_FIRMWARE_IMAGE_DESCRIPTOR_VERSION 4
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typedef struct efi_firmware_image_dependencies {
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u8 dependencies[0];
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} efi_firmware_image_dep_t;
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struct efi_firmware_image_descriptor {
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u8 image_index;
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efi_guid_t image_type_id;
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u64 image_id;
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u16 *image_id_name;
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u32 version;
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u16 *version_name;
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efi_uintn_t size;
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u64 attributes_supported;
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u64 attributes_setting;
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u64 compatibilities;
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u32 lowest_supported_image_version;
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u32 last_attempt_version;
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u32 last_attempt_status;
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u64 hardware_instance;
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efi_firmware_image_dep_t *dependencies;
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};
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struct efi_firmware_management_protocol {
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efi_status_t (EFIAPI *get_image_info)(
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struct efi_firmware_management_protocol *this,
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efi_uintn_t *image_info_size,
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struct efi_firmware_image_descriptor *image_info,
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u32 *descriptor_version,
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u8 *descriptor_count,
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efi_uintn_t *descriptor_size,
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u32 *package_version,
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u16 **package_version_name);
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efi_status_t (EFIAPI *get_image)(
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struct efi_firmware_management_protocol *this,
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u8 image_index,
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void *image,
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efi_uintn_t *image_size);
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efi_status_t (EFIAPI *set_image)(
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struct efi_firmware_management_protocol *this,
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u8 image_index,
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const void *image,
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efi_uintn_t image_size,
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const void *vendor_code,
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efi_status_t (*progress)(efi_uintn_t completion),
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u16 **abort_reason);
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efi_status_t (EFIAPI *check_image)(
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struct efi_firmware_management_protocol *this,
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u8 image_index,
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const void *image,
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efi_uintn_t *image_size,
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u32 *image_updatable);
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efi_status_t (EFIAPI *get_package_info)(
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struct efi_firmware_management_protocol *this,
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u32 *package_version,
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u16 **package_version_name,
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u32 *package_version_name_maxlen,
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u64 *attributes_supported,
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u64 *attributes_setting);
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efi_status_t (EFIAPI *set_package_info)(
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struct efi_firmware_management_protocol *this,
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const void *image,
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efi_uintn_t *image_size,
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const void *vendor_code,
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u32 package_version,
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const u16 *package_version_name);
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};
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#endif
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@ -212,6 +212,8 @@ extern const efi_guid_t efi_guid_cert_type_pkcs7;
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extern const efi_guid_t efi_guid_rng_protocol;
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/* GUID of capsule update result */
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extern const efi_guid_t efi_guid_capsule_report;
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/* GUID of firmware management protocol */
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extern const efi_guid_t efi_guid_firmware_management_protocol;
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extern unsigned int __efi_runtime_start, __efi_runtime_stop;
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extern unsigned int __efi_runtime_rel_start, __efi_runtime_rel_stop;
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@ -127,6 +127,14 @@ config EFI_CAPSULE_ON_DISK_EARLY
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executed as part of U-Boot initialisation so that they will
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surely take place whatever is set to distro_bootcmd.
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config EFI_CAPSULE_FIRMWARE_MANAGEMENT
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bool "Capsule: Firmware Management Protocol"
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depends on EFI_HAVE_CAPSULE_SUPPORT
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default y
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help
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Select this option if you want to enable capsule-based
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firmware update using Firmware Management Protocol.
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config EFI_DEVICE_PATH_TO_TEXT
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bool "Device path to text protocol"
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default y
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@ -15,6 +15,10 @@
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#include <sort.h>
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const efi_guid_t efi_guid_capsule_report = EFI_CAPSULE_REPORT_GUID;
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static const efi_guid_t efi_guid_firmware_management_capsule_id =
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EFI_FIRMWARE_MANAGEMENT_CAPSULE_ID_GUID;
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const efi_guid_t efi_guid_firmware_management_protocol =
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EFI_FIRMWARE_MANAGEMENT_PROTOCOL_GUID;
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#ifdef CONFIG_EFI_CAPSULE_ON_DISK
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/* for file system access */
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@ -85,9 +89,214 @@ void set_capsule_result(int index, struct efi_capsule_header *capsule,
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EFI_VARIABLE_RUNTIME_ACCESS,
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sizeof(result), &result);
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if (ret)
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printf("EFI: creating %ls failed\n", variable_name16);
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log_err("EFI: creating %ls failed\n", variable_name16);
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}
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#ifdef CONFIG_EFI_CAPSULE_FIRMWARE_MANAGEMENT
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/**
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* efi_fmp_find - search for Firmware Management Protocol drivers
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* @image_type: Image type guid
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* @instance: Instance number
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* @handles: Handles of FMP drivers
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* @no_handles: Number of handles
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*
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* Search for Firmware Management Protocol drivers, matching the image
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* type, @image_type and the machine instance, @instance, from the list,
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* @handles.
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*
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* Return:
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* * Protocol instance - on success
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* * NULL - on failure
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*/
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static struct efi_firmware_management_protocol *
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efi_fmp_find(efi_guid_t *image_type, u64 instance, efi_handle_t *handles,
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efi_uintn_t no_handles)
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{
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efi_handle_t *handle;
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struct efi_firmware_management_protocol *fmp;
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struct efi_firmware_image_descriptor *image_info, *desc;
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efi_uintn_t info_size, descriptor_size;
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u32 descriptor_version;
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u8 descriptor_count;
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u32 package_version;
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u16 *package_version_name;
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bool found = false;
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int i, j;
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efi_status_t ret;
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for (i = 0, handle = handles; i < no_handles; i++, handle++) {
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ret = EFI_CALL(efi_handle_protocol(
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*handle,
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&efi_guid_firmware_management_protocol,
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(void **)&fmp));
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if (ret != EFI_SUCCESS)
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continue;
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/* get device's image info */
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info_size = 0;
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image_info = NULL;
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descriptor_version = 0;
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descriptor_count = 0;
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descriptor_size = 0;
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package_version = 0;
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package_version_name = NULL;
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ret = EFI_CALL(fmp->get_image_info(fmp, &info_size,
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image_info,
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&descriptor_version,
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&descriptor_count,
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&descriptor_size,
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&package_version,
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&package_version_name));
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if (ret != EFI_BUFFER_TOO_SMALL)
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goto skip;
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image_info = malloc(info_size);
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if (!image_info)
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goto skip;
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ret = EFI_CALL(fmp->get_image_info(fmp, &info_size,
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image_info,
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&descriptor_version,
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&descriptor_count,
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&descriptor_size,
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&package_version,
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&package_version_name));
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if (ret != EFI_SUCCESS ||
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descriptor_version != EFI_FIRMWARE_IMAGE_DESCRIPTOR_VERSION)
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goto skip;
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/* matching */
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for (j = 0, desc = image_info; j < descriptor_count;
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j++, desc = (void *)desc + descriptor_size) {
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log_debug("+++ desc[%d] index: %d, name: %ls\n",
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j, desc->image_index, desc->image_id_name);
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if (!guidcmp(&desc->image_type_id, image_type) &&
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(!instance ||
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!desc->hardware_instance ||
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desc->hardware_instance == instance))
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found = true;
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}
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skip:
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efi_free_pool(package_version_name);
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free(image_info);
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EFI_CALL(efi_close_protocol(
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(efi_handle_t)fmp,
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&efi_guid_firmware_management_protocol,
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NULL, NULL));
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if (found)
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return fmp;
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}
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return NULL;
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}
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/**
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* efi_capsule_update_firmware - update firmware from capsule
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* @capsule_data: Capsule
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*
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* Update firmware, using a capsule, @capsule_data. Loading any FMP
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* drivers embedded in a capsule is not supported.
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*
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* Return: status code
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*/
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static efi_status_t efi_capsule_update_firmware(
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struct efi_capsule_header *capsule_data)
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{
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struct efi_firmware_management_capsule_header *capsule;
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struct efi_firmware_management_capsule_image_header *image;
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size_t capsule_size;
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void *image_binary, *vendor_code;
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efi_handle_t *handles;
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efi_uintn_t no_handles;
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int item;
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struct efi_firmware_management_protocol *fmp;
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u16 *abort_reason;
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efi_status_t ret = EFI_SUCCESS;
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/* sanity check */
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if (capsule_data->header_size < sizeof(*capsule) ||
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capsule_data->header_size >= capsule_data->capsule_image_size)
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return EFI_INVALID_PARAMETER;
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capsule = (void *)capsule_data + capsule_data->header_size;
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capsule_size = capsule_data->capsule_image_size
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- capsule_data->header_size;
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if (capsule->version != 0x00000001)
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return EFI_UNSUPPORTED;
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handles = NULL;
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ret = EFI_CALL(efi_locate_handle_buffer(
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BY_PROTOCOL,
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&efi_guid_firmware_management_protocol,
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NULL, &no_handles, (efi_handle_t **)&handles));
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if (ret != EFI_SUCCESS)
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return EFI_UNSUPPORTED;
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/* Payload */
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for (item = capsule->embedded_driver_count;
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item < capsule->embedded_driver_count
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+ capsule->payload_item_count; item++) {
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/* sanity check */
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if ((capsule->item_offset_list[item] + sizeof(*image)
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>= capsule_size)) {
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log_err("EFI: A capsule has not enough data\n");
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ret = EFI_INVALID_PARAMETER;
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goto out;
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}
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image = (void *)capsule + capsule->item_offset_list[item];
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if (image->version != 0x00000003) {
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ret = EFI_UNSUPPORTED;
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goto out;
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}
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/* find a device for update firmware */
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/* TODO: should we pass index as well, or nothing but type? */
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fmp = efi_fmp_find(&image->update_image_type_id,
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image->update_hardware_instance,
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handles, no_handles);
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if (!fmp) {
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log_err("EFI Capsule: driver not found for firmware type: %pUl, hardware instance: %lld\n",
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&image->update_image_type_id,
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image->update_hardware_instance);
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ret = EFI_UNSUPPORTED;
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goto out;
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}
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/* do update */
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image_binary = (void *)image + sizeof(*image);
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vendor_code = image_binary + image->update_image_size;
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abort_reason = NULL;
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ret = EFI_CALL(fmp->set_image(fmp, image->update_image_index,
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image_binary,
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image->update_image_size,
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vendor_code, NULL,
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&abort_reason));
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if (ret != EFI_SUCCESS) {
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log_err("EFI Capsule: firmware update failed: %ls\n",
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abort_reason);
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efi_free_pool(abort_reason);
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goto out;
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}
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}
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out:
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efi_free_pool(handles);
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return ret;
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}
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#else
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static efi_status_t efi_capsule_update_firmware(
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struct efi_capsule_header *capsule_data)
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{
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return EFI_UNSUPPORTED;
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}
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#endif /* CONFIG_EFI_CAPSULE_FIRMWARE_MANAGEMENT */
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/**
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* efi_update_capsule() - process information from operating system
|
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* @capsule_header_array: Array of virtual address pointers
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|
|
@ -118,9 +327,29 @@ efi_status_t EFIAPI efi_update_capsule(
|
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goto out;
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}
|
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ret = EFI_UNSUPPORTED;
|
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ret = EFI_SUCCESS;
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for (i = 0, capsule = *capsule_header_array; i < capsule_count;
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i++, capsule = *(++capsule_header_array)) {
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/* sanity check */
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if (capsule->header_size < sizeof(*capsule) ||
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capsule->capsule_image_size < sizeof(*capsule)) {
|
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log_err("EFI: A capsule has not enough data\n");
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continue;
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}
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|
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log_debug("Capsule[%d] (guid:%pUl)\n",
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i, &capsule->capsule_guid);
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if (!guidcmp(&capsule->capsule_guid,
|
||||
&efi_guid_firmware_management_capsule_id)) {
|
||||
ret = efi_capsule_update_firmware(capsule);
|
||||
} else {
|
||||
log_err("EFI: not support capsule type: %pUl\n",
|
||||
&capsule->capsule_guid);
|
||||
ret = EFI_UNSUPPORTED;
|
||||
}
|
||||
|
||||
if (ret != EFI_SUCCESS)
|
||||
goto out;
|
||||
}
|
||||
out:
|
||||
return EFI_EXIT(ret);
|
||||
|
|
@ -265,7 +494,7 @@ static efi_status_t find_boot_device(void)
|
|||
if (ret == EFI_SUCCESS || ret == EFI_BUFFER_TOO_SMALL) {
|
||||
/* BootNext does exist here */
|
||||
if (ret == EFI_BUFFER_TOO_SMALL || size != sizeof(u16)) {
|
||||
printf("BootNext must be 16-bit integer\n");
|
||||
log_err("BootNext must be 16-bit integer\n");
|
||||
goto skip;
|
||||
}
|
||||
sprintf((char *)boot_var, "Boot%04X", bootnext);
|
||||
|
|
@ -323,7 +552,7 @@ out:
|
|||
u16 *path_str;
|
||||
|
||||
path_str = efi_dp_str(boot_dev);
|
||||
EFI_PRINT("EFI Capsule: bootdev is %ls\n", path_str);
|
||||
log_debug("EFI Capsule: bootdev is %ls\n", path_str);
|
||||
efi_free_pool(path_str);
|
||||
|
||||
volume = efi_fs_from_path(boot_dev);
|
||||
|
|
@ -363,7 +592,7 @@ static efi_status_t efi_capsule_scan_dir(u16 ***files, unsigned int *num)
|
|||
|
||||
ret = find_boot_device();
|
||||
if (ret == EFI_NOT_FOUND) {
|
||||
EFI_PRINT("EFI Capsule: bootdev is not set\n");
|
||||
log_debug("EFI Capsule: bootdev is not set\n");
|
||||
*num = 0;
|
||||
return EFI_SUCCESS;
|
||||
} else if (ret != EFI_SUCCESS) {
|
||||
|
|
@ -619,20 +848,19 @@ efi_status_t efi_launch_capsules(void)
|
|||
|
||||
/* Launch capsules */
|
||||
for (i = 0, ++index; i < nfiles; i++, index++) {
|
||||
EFI_PRINT("capsule from %ls ...\n", files[i]);
|
||||
log_debug("capsule from %ls ...\n", files[i]);
|
||||
if (index > 0xffff)
|
||||
index = 0;
|
||||
ret = efi_capsule_read_file(files[i], &capsule);
|
||||
if (ret == EFI_SUCCESS) {
|
||||
ret = EFI_CALL(efi_update_capsule(&capsule, 1, 0));
|
||||
if (ret != EFI_SUCCESS)
|
||||
printf("EFI Capsule update failed at %ls\n",
|
||||
files[i]);
|
||||
log_err("EFI Capsule update failed at %ls\n",
|
||||
files[i]);
|
||||
|
||||
free(capsule);
|
||||
} else {
|
||||
printf("EFI: reading capsule failed: %ls\n",
|
||||
files[i]);
|
||||
log_err("EFI: reading capsule failed: %ls\n", files[i]);
|
||||
}
|
||||
/* create CapsuleXXXX */
|
||||
set_capsule_result(index, capsule, ret);
|
||||
|
|
@ -640,8 +868,8 @@ efi_status_t efi_launch_capsules(void)
|
|||
/* delete a capsule either in case of success or failure */
|
||||
ret = efi_capsule_delete_file(files[i]);
|
||||
if (ret != EFI_SUCCESS)
|
||||
printf("EFI: deleting a capsule file failed: %ls\n",
|
||||
files[i]);
|
||||
log_err("EFI: deleting a capsule file failed: %ls\n",
|
||||
files[i]);
|
||||
}
|
||||
efi_capsule_scan_done();
|
||||
|
||||
|
|
|
|||
|
|
@ -159,6 +159,10 @@ static efi_status_t efi_init_os_indications(void)
|
|||
os_indications_supported |=
|
||||
EFI_OS_INDICATIONS_FILE_CAPSULE_DELIVERY_SUPPORTED;
|
||||
|
||||
if (IS_ENABLED(CONFIG_EFI_CAPSULE_FIRMWARE_MANAGEMENT))
|
||||
os_indications_supported |=
|
||||
EFI_OS_INDICATIONS_FMP_CAPSULE_SUPPORTED;
|
||||
|
||||
return efi_set_variable_int(L"OsIndicationsSupported",
|
||||
&efi_global_variable_guid,
|
||||
EFI_VARIABLE_BOOTSERVICE_ACCESS |
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user