Update secure boot UI driver to handle “reset to default” hot key.

Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
Reviewed-by: Ye Ting <ting.ye@intel.com>
Reviewed-by: Yao Jiewen <jiewen.yao@intel.com>


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14257 6f19259b-4bc3-4df7-8a09-765794883524

SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfig.vfr

@@ -43,8 +43,10 @@ formset
     //
     suppressif TRUE;
       checkbox varid   = SECUREBOOT_CONFIGURATION.HideSecureBoot,
+              questionid = KEY_HIDE_SECURE_BOOT,
               prompt   = STRING_TOKEN(STR_NULL),
               help     = STRING_TOKEN(STR_NULL),
+              flags    = INTERACTIVE,
       endcheckbox;
     endif;  
     

SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigImpl.c

@@ -2378,6 +2378,11 @@ SecureBootRouteConfig (
        OUT EFI_STRING                          *Progress
   )
 {
+  UINT8                      *SecureBootEnable;
+  SECUREBOOT_CONFIGURATION   IfrNvData;
+  UINTN                      BufferSize;
+  EFI_STATUS                 Status;
+  
   if (Configuration == NULL || Progress == NULL) {
     return EFI_INVALID_PARAMETER;
   }
@@ -2387,6 +2392,31 @@ SecureBootRouteConfig (
     return EFI_NOT_FOUND;
   }
 
+  BufferSize = sizeof (SECUREBOOT_CONFIGURATION);
+  Status = gHiiConfigRouting->ConfigToBlock (
+                                gHiiConfigRouting,
+                                Configuration,
+                                (UINT8 *)&IfrNvData,
+                                &BufferSize,
+                                Progress
+                                );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  // Store Buffer Storage back to EFI variable if needed
+  //
+  SecureBootEnable = NULL;
+  GetVariable2 (EFI_SECURE_BOOT_ENABLE_NAME, &gEfiSecureBootEnableDisableGuid, (VOID**)&SecureBootEnable, NULL);
+  if (NULL != SecureBootEnable) {
+    FreePool (SecureBootEnable);
+    Status = SaveSecureBootVariable (IfrNvData.AttemptSecureBoot);
+    if (EFI_ERROR (Status)) {
+      return Status;
+    }
+  }
+
   *Progress = Configuration + StrLen (Configuration);
   return EFI_SUCCESS;
 }
@@ -2445,7 +2475,8 @@ SecureBootCallback (
 
   if ((Action != EFI_BROWSER_ACTION_CHANGED) &&
       (Action != EFI_BROWSER_ACTION_CHANGING) &&
-      (Action != EFI_BROWSER_ACTION_FORM_CLOSE)) {
+      (Action != EFI_BROWSER_ACTION_FORM_CLOSE) &&
+      (Action != EFI_BROWSER_ACTION_DEFAULT_STANDARD)) {
     return EFI_UNSUPPORTED;
   }
   
@@ -2733,6 +2764,17 @@ SecureBootCallback (
       }
       break;  
     }
+  } else if (Action == EFI_BROWSER_ACTION_DEFAULT_STANDARD) {
+    if (QuestionId == KEY_HIDE_SECURE_BOOT) {
+      GetVariable2 (EFI_SECURE_BOOT_ENABLE_NAME, &gEfiSecureBootEnableDisableGuid, (VOID**)&SecureBootEnable, NULL);
+      if (SecureBootEnable == NULL) {
+        IfrNvData->HideSecureBoot = TRUE;
+      } else {
+        FreePool (SecureBootEnable);
+        IfrNvData->HideSecureBoot = FALSE;
+      }
+      Value->b = IfrNvData->HideSecureBoot;
+    }
   } else if (Action == EFI_BROWSER_ACTION_FORM_CLOSE) {
     //
     // Force the platform back to Standard Mode once user leave the setup screen.

SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigNvData.h

@@ -55,6 +55,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 #define KEY_VALUE_NO_SAVE_AND_EXIT_KEK        0x1009
 #define KEY_VALUE_SAVE_AND_EXIT_DBX           0x100a
 #define KEY_VALUE_NO_SAVE_AND_EXIT_DBX        0x100b
+#define KEY_HIDE_SECURE_BOOT                  0x100c
 
 #define KEY_SECURE_BOOT_OPTION                0x1100
 #define KEY_SECURE_BOOT_PK_OPTION             0x1101