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efi_loader: factor out efi_set_load_options()

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The bootefi bootmgr command has to set the load options for a loaded image
from the value of BootXXXX variable. If the boot manager is not used, the
value is set from the environment variable bootargs (or efi_selftest).

Factor out a common function efi_set_load_options().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Heinrich Schuchardt 2020-08-07 17:47:13 +02:00
parent dd92aad81c
commit 1064d04920
3 changed files with 54 additions and 36 deletions
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32
lib/efi_loader/efi_bootmgr.c
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@ -30,6 +30,38 @@ static const struct efi_runtime_services *rs;
* should do normal or recovery boot.
*/
/**
* efi_set_load_options() - set the load options of a loaded image
*
* @handle: the image handle
* @load_options_size: size of load options
* @load_options: pointer to load options
* Return: status code
*/
efi_status_t efi_set_load_options(efi_handle_t handle,
efi_uintn_t load_options_size,
void *load_options)
{
struct efi_loaded_image *loaded_image_info;
efi_status_t ret;
ret = EFI_CALL(systab.boottime->open_protocol(
handle,
&efi_guid_loaded_image,
(void **)&loaded_image_info,
efi_root, NULL,
EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL));
if (ret != EFI_SUCCESS)
return EFI_INVALID_PARAMETER;
loaded_image_info->load_options = load_options;
loaded_image_info->load_options_size = load_options_size;
return EFI_CALL(systab.boottime->close_protocol(handle,
&efi_guid_loaded_image,
efi_root, NULL));
}
/**
* efi_deserialize_load_option() - parse serialized data