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efi_loader: clear OsIndications

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After each reboot we must clear flag
EFI_OS_INDICATIONS_FILE_CAPSULE_DELIVERY_SUPPORTED in variable
OsIndications.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Heinrich Schuchardt 2021-06-29 13:33:09 +02:00
parent 417a3c24c9
commit 149108a3eb
1 changed files with 39 additions and 1 deletions
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40
lib/efi_loader/efi_setup.c
View file

@ -5,9 +5,12 @@
* Copyright (c) 2016-2018 Alexander Graf et al.
*/
#define LOG_CATEGORY LOGC_EFI
#include <common.h>
#include <efi_loader.h>
#include <efi_variable.h>
#include <log.h>
#define OBJ_LIST_NOT_INITIALIZED 1
@ -171,6 +174,37 @@ static efi_status_t efi_init_os_indications(void)
&os_indications_supported, false);
}
/**
* efi_clear_os_indications() - clear OsIndications
*
* Clear EFI_OS_INDICATIONS_FILE_CAPSULE_DELIVERY_SUPPORTED
*/
static efi_status_t efi_clear_os_indications(void)
{
efi_uintn_t size;
u64 os_indications;
efi_status_t ret;
size = sizeof(os_indications);
ret = efi_get_variable_int(L"OsIndications", &efi_global_variable_guid,
NULL, &size, &os_indications, NULL);
if (ret != EFI_SUCCESS)
os_indications = 0;
else
os_indications &=
~EFI_OS_INDICATIONS_FILE_CAPSULE_DELIVERY_SUPPORTED;
ret = efi_set_variable_int(L"OsIndications", &efi_global_variable_guid,
EFI_VARIABLE_NON_VOLATILE |
EFI_VARIABLE_BOOTSERVICE_ACCESS |
EFI_VARIABLE_RUNTIME_ACCESS,
sizeof(os_indications), &os_indications,
false);
if (ret != EFI_SUCCESS)
log_err("Setting %ls failed\n", L"OsIndications");
return ret;
}
/**
* efi_init_obj_list() - Initialize and populate EFI object list
*
@ -178,7 +212,7 @@ static efi_status_t efi_init_os_indications(void)
*/
efi_status_t efi_init_obj_list(void)
{
efi_status_t ret = EFI_SUCCESS;
efi_status_t r, ret = EFI_SUCCESS;
/* Initialize once only */
if (efi_obj_list_initialized != OBJ_LIST_NOT_INITIALIZED)
@ -297,7 +331,11 @@ efi_status_t efi_init_obj_list(void)
if (IS_ENABLED(CONFIG_EFI_CAPSULE_ON_DISK) &&
!IS_ENABLED(CONFIG_EFI_CAPSULE_ON_DISK_EARLY))
ret = efi_launch_capsules();
out:
r = efi_clear_os_indications();
if (ret == EFI_SUCCESS)
ret = r;
efi_obj_list_initialized = ret;
return ret;
}