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Pull request for UEFI sub-system for v2019.07-rc4-2

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Support for managing the non-volatile attribute of UEFI variables
 is added though we do not have a backend for persistence yet.
 
 Error messages for changes of UEFI variables are provided.
 
 UEFI boottime service implementations are corrected.
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Merge tag 'efi-2019-07-rc4-2' of git://git.denx.de/u-boot-efi

Pull request for UEFI sub-system for v2019.07-rc4-2

Support for managing the non-volatile attribute of UEFI variables
is added though we do not have a backend for persistence yet.

Error messages for changes of UEFI variables are provided.

UEFI boottime service implementations are corrected.
This commit is contained in:
Tom Rini 2019-06-05 15:53:18 -04:00
commit dbbb1c43f2
11 changed files with 100 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

55
lib/efi_loader/efi_boottime.c
View file

@ -1153,11 +1153,15 @@ static efi_status_t efi_get_drivers(efi_handle_t handle,
++count;
}
}
*number_of_drivers = 0;
if (!count) {
*driver_handle_buffer = NULL;
return EFI_SUCCESS;
}
/*
* Create buffer. In case of duplicate driver assignments the buffer
* will be too large. But that does not harm.
*/
*number_of_drivers = 0;
*driver_handle_buffer = calloc(count, sizeof(efi_handle_t));
if (!*driver_handle_buffer)
return EFI_OUT_OF_RESOURCES;
@ -1213,7 +1217,8 @@ static efi_status_t efi_disconnect_all_drivers
&driver_handle_buffer);
if (ret != EFI_SUCCESS)
return ret;
if (!number_of_drivers)
return EFI_SUCCESS;
ret = EFI_NOT_FOUND;
while (number_of_drivers) {
r = EFI_CALL(efi_disconnect_controller(
@ -1985,8 +1990,14 @@ out:
*/
static efi_status_t EFIAPI efi_stall(unsigned long microseconds)
{
u64 end_tick;
EFI_ENTRY("%ld", microseconds);
udelay(microseconds);
end_tick = get_ticks() + usec_to_tick(microseconds);
while (get_ticks() < end_tick)
efi_timer_check();
return EFI_EXIT(EFI_SUCCESS);
}
@ -2868,12 +2879,46 @@ efi_status_t EFIAPI efi_start_image(efi_handle_t image_handle,
* @image_obj: handle of the loaded image
* @loaded_image_protocol: loaded image protocol
*/
static void efi_delete_image(struct efi_loaded_image_obj *image_obj,
struct efi_loaded_image *loaded_image_protocol)
static efi_status_t efi_delete_image
(struct efi_loaded_image_obj *image_obj,
struct efi_loaded_image *loaded_image_protocol)
{
struct efi_object *efiobj;
efi_status_t r, ret = EFI_SUCCESS;
close_next:
list_for_each_entry(efiobj, &efi_obj_list, link) {
struct efi_handler *protocol;
list_for_each_entry(protocol, &efiobj->protocols, link) {
struct efi_open_protocol_info_item *info;
list_for_each_entry(info, &protocol->open_infos, link) {
if (info->info.agent_handle !=
(efi_handle_t)image_obj)
continue;
r = EFI_CALL(efi_close_protocol
(efiobj, protocol->guid,
info->info.agent_handle,
info->info.controller_handle
));
if (r != EFI_SUCCESS)
ret = r;
/*
* Closing protocols may results in further
* items being deleted. To play it safe loop
* over all elements again.
*/
goto close_next;
}
}
}
efi_free_pages((uintptr_t)loaded_image_protocol->image_base,
efi_size_in_pages(loaded_image_protocol->image_size));
efi_delete_handle(&image_obj->header);
return ret;
}
/**