diff options
| -rw-r--r-- | ArmPlatformPkg/Bds/Bds.c | 41 |
1 files changed, 33 insertions, 8 deletions
diff --git a/ArmPlatformPkg/Bds/Bds.c b/ArmPlatformPkg/Bds/Bds.c index 8f7f9fdf7c..c5246a0f0b 100644 --- a/ArmPlatformPkg/Bds/Bds.c +++ b/ArmPlatformPkg/Bds/Bds.c @@ -390,6 +390,9 @@ BdsEntry ( {
UINTN Size;
EFI_STATUS Status;
+ UINT16 *BootNext;
+ UINTN BootNextSize;
+ CHAR16 BootVariableName[9];
PERF_END (NULL, "DXE", NULL, 0);
@@ -404,16 +407,38 @@ BdsEntry ( }
// If BootNext environment variable is defined then we just load it !
- Status = BdsStartBootOption (L"BootNext");
- if (Status != EFI_NOT_FOUND) {
- // BootNext has not been succeeded launched
- if (EFI_ERROR(Status)) {
- Print(L"Fail to start BootNext.\n");
+ BootNextSize = sizeof(UINT16);
+ Status = GetEnvironmentVariable (L"BootNext", NULL, &BootNextSize, (VOID**)&BootNext);
+ if (!EFI_ERROR(Status)) {
+ ASSERT(BootNextSize == sizeof(UINT16));
+
+ // Generate the requested Boot Entry variable name
+ UnicodeSPrint (BootVariableName, 9 * sizeof(CHAR16), L"Boot%04X", *BootNext);
+
+ // Set BootCurrent variable
+ gRT->SetVariable (L"BootCurrent", &gEfiGlobalVariableGuid,
+ EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
+ BootNextSize, BootNext);
+
+ FreePool (BootNext);
+
+ // Start the requested Boot Entry
+ Status = BdsStartBootOption (BootVariableName);
+ if (Status != EFI_NOT_FOUND) {
+ // BootNext has not been succeeded launched
+ if (EFI_ERROR(Status)) {
+ Print(L"Fail to start BootNext.\n");
+ }
+
+ // Delete the BootNext environment variable
+ gRT->SetVariable (L"BootNext", &gEfiGlobalVariableGuid,
+ EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
+ 0, NULL);
}
- // Delete the BootNext environment variable
- gRT->SetVariable (L"BootNext", &gEfiGlobalVariableGuid,
- EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
+ // Clear BootCurrent variable
+ gRT->SetVariable (L"BootCurrent", &gEfiGlobalVariableGuid,
+ EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
0, NULL);
}
|