diff options
Diffstat (limited to 'IntelFrameworkModulePkg/Universal')
-rw-r--r-- | IntelFrameworkModulePkg/Universal/BdsDxe/BootMaint/BootMaint.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/IntelFrameworkModulePkg/Universal/BdsDxe/BootMaint/BootMaint.c b/IntelFrameworkModulePkg/Universal/BdsDxe/BootMaint/BootMaint.c index ac09201fb4..6e15e096a6 100644 --- a/IntelFrameworkModulePkg/Universal/BdsDxe/BootMaint/BootMaint.c +++ b/IntelFrameworkModulePkg/Universal/BdsDxe/BootMaint/BootMaint.c @@ -1441,3 +1441,59 @@ FormSetDispatcher ( }
+/**
+ Deletete the Boot Option from EFI Variable. The Boot Order Arrray
+ is also updated.
+
+ @param OptionNumber The number of Boot option want to be deleted.
+ @param BootOrder The Boot Order array.
+ @param BootOrderSize The size of the Boot Order Array.
+
+ @retval EFI_SUCCESS The Boot Option Variable was found and removed
+ @retval EFI_UNSUPPORTED The Boot Option Variable store was inaccessible
+ @retval EFI_NOT_FOUND The Boot Option Variable was not found
+**/
+EFI_STATUS
+EFIAPI
+BdsDeleteBootOption (
+ IN UINTN OptionNumber,
+ IN OUT UINT16 *BootOrder,
+ IN OUT UINTN *BootOrderSize
+ )
+{
+ UINT16 BootOption[100];
+ UINTN Index;
+ EFI_STATUS Status;
+ UINTN Index2Del;
+
+ Status = EFI_SUCCESS;
+ Index2Del = 0;
+
+ UnicodeSPrint (BootOption, sizeof (BootOption), L"Boot%04x", OptionNumber);
+ Status = EfiLibDeleteVariable (BootOption, &gEfiGlobalVariableGuid);
+
+ //
+ // adjust boot order array
+ //
+ for (Index = 0; Index < *BootOrderSize / sizeof (UINT16); Index++) {
+ if (BootOrder[Index] == OptionNumber) {
+ Index2Del = Index;
+ break;
+ }
+ }
+
+ if (Index != *BootOrderSize / sizeof (UINT16)) {
+ for (Index = 0; Index < *BootOrderSize / sizeof (UINT16) - 1; Index++) {
+ if (Index >= Index2Del) {
+ BootOrder[Index] = BootOrder[Index + 1];
+ }
+ }
+
+ *BootOrderSize -= sizeof (UINT16);
+ }
+
+ return Status;
+
+}
+
+
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