MdeModulePkg: Process Sys Prep load options in BdsDxe driver.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17403 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 23 insertions, 7 deletions

diff --git a/MdeModulePkg/Library/UefiBootManagerLib/BmConsole.c b/MdeModulePkg/Library/UefiBootManagerLib/BmConsole.c
index 49b99957e0..4f5c8b04c2 100644
--- a/MdeModulePkg/Library/UefiBootManagerLib/BmConsole.c
+++ b/MdeModulePkg/Library/UefiBootManagerLib/BmConsole.c
@@ -695,28 +695,42 @@ EfiBootManagerConnectAllConsoles (
 /**
   This function will connect all the console devices base on the console
   device variable ConIn, ConOut and ErrOut.
+
+  @retval EFI_DEVICE_ERROR         All the consoles were not connected due to an error.
+  @retval EFI_SUCCESS              Success connect any one instance of the console
+                                   device path base on the variable ConVarName.
 **/
-VOID
+EFI_STATUS
 EFIAPI
 EfiBootManagerConnectAllDefaultConsoles (
   VOID
   )
 {
+  EFI_STATUS                Status;
+  BOOLEAN                   OneConnected;
   BOOLEAN                   SystemTableUpdated;
 
-  EfiBootManagerConnectConsoleVariable (ConOut);
+  OneConnected = FALSE;
+
+  Status = EfiBootManagerConnectConsoleVariable (ConOut);
+  if (!EFI_ERROR (Status)) {
+    OneConnected = TRUE;
+  }
   PERF_START (NULL, "ConOutReady", "BDS", 1);
   PERF_END   (NULL, "ConOutReady", "BDS", 0);
 
   
-  EfiBootManagerConnectConsoleVariable (ConIn);
+  Status = EfiBootManagerConnectConsoleVariable (ConIn);
+  if (!EFI_ERROR (Status)) {
+    OneConnected = TRUE;
+  }
   PERF_START (NULL, "ConInReady", "BDS", 1);
   PERF_END   (NULL, "ConInReady", "BDS", 0);
 
-  //
-  // The _ModuleEntryPoint err out var is legal.
-  //
-  EfiBootManagerConnectConsoleVariable (ErrOut);
+  Status = EfiBootManagerConnectConsoleVariable (ErrOut);
+  if (!EFI_ERROR (Status)) {
+    OneConnected = TRUE;
+  }
   PERF_START (NULL, "ErrOutReady", "BDS", 1);
   PERF_END   (NULL, "ErrOutReady", "BDS", 0);
 
@@ -745,4 +759,6 @@ EfiBootManagerConnectAllDefaultConsoles (
           &gST->Hdr.CRC32
           );
   }
+
+  return OneConnected ? EFI_SUCCESS : EFI_DEVICE_ERROR;
 }