diff options
Diffstat (limited to 'lib/efi_loader')
| -rw-r--r-- | lib/efi_loader/Kconfig | 1 | ||||
| -rw-r--r-- | lib/efi_loader/efi_boottime.c | 8 | ||||
| -rw-r--r-- | lib/efi_loader/efi_rng.c | 35 |
3 files changed, 40 insertions, 4 deletions
diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig index 6727336169..a7afa3f29e 100644 --- a/lib/efi_loader/Kconfig +++ b/lib/efi_loader/Kconfig @@ -16,6 +16,7 @@ config EFI_LOADER select REGEX imply CFB_CONSOLE_ANSI imply USB_KEYBOARD_FN_KEYS + imply VIDEO_ANSI help Select this option if you want to run UEFI applications (like GNU GRUB or iPXE) on top of U-Boot. If this option is enabled, U-Boot diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c index 3103a50158..1f598b357a 100644 --- a/lib/efi_loader/efi_boottime.c +++ b/lib/efi_loader/efi_boottime.c @@ -2933,10 +2933,10 @@ efi_status_t EFIAPI efi_start_image(efi_handle_t image_handle, ret = EFI_CALL(image_obj->entry(image_handle, &systab)); /* - * Usually UEFI applications call Exit() instead of returning. - * But because the world doesn't consist of ponies and unicorns, - * we're happy to emulate that behavior on behalf of a payload - * that forgot. + * Control is returned from a started UEFI image either by calling + * Exit() (where exit data can be provided) or by simply returning from + * the entry point. In the latter case call Exit() on behalf of the + * image. */ return EFI_CALL(systab.boottime->exit(image_handle, ret, 0, NULL)); } diff --git a/lib/efi_loader/efi_rng.c b/lib/efi_loader/efi_rng.c index 432c986204..a1d0ec842c 100644 --- a/lib/efi_loader/efi_rng.c +++ b/lib/efi_loader/efi_rng.c @@ -13,6 +13,17 @@ DECLARE_GLOBAL_DATA_PTR; const efi_guid_t efi_guid_rng_protocol = EFI_RNG_PROTOCOL_GUID; +/** + * platform_get_rng_device() - retrieve random number generator + * + * This function retrieves the udevice implementing a hardware random + * number generator. + * + * This function may be overridden if special initialization is needed. + * + * @dev: udevice + * Return: status code + */ __weak efi_status_t platform_get_rng_device(struct udevice **dev) { int ret; @@ -29,6 +40,18 @@ __weak efi_status_t platform_get_rng_device(struct udevice **dev) return EFI_SUCCESS; } +/** + * rng_getinfo() - get information about random number generation + * + * This function implement the GetInfo() service of the EFI random number + * generator protocol. See the UEFI spec for details. + * + * @this: random number generator protocol instance + * @rng_algorithm_list_size: number of random number generation algorithms + * @rng_algorithm_list: descriptions of random number generation + * algorithms + * Return: status code + */ static efi_status_t EFIAPI rng_getinfo(struct efi_rng_protocol *this, efi_uintn_t *rng_algorithm_list_size, efi_guid_t *rng_algorithm_list) @@ -64,6 +87,18 @@ back: return EFI_EXIT(ret); } +/** + * rng_getrng() - get random value + * + * This function implement the GetRng() service of the EFI random number + * generator protocol. See the UEFI spec for details. + * + * @this: random number generator protocol instance + * @rng_algorithm: random number generation algorithm + * @rng_value_length: number of random bytes to generate, buffer length + * @rng_value: buffer to receive random bytes + * Return: status code + */ static efi_status_t EFIAPI getrng(struct efi_rng_protocol *this, efi_guid_t *rng_algorithm, efi_uintn_t rng_value_length, |