For EfiVarStore (EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER), it will call  
ExtractConfig->
GetVariable->HiiBlockToConfig->ConfigToBlock when load storage value in 
LoadStorage function.
It's not necessary and costs lots of time to do the conversion between config 
and block.
so now enhance it to call GetVariable directly.

Cc: Liming Gao <gaolim...@byosoft.com.cn>
Cc: Eric Dong <eric.d...@intel.com>
Signed-off-by: Dandan Bi <dandan...@intel.com>
---
 .../Universal/SetupBrowserDxe/Setup.c         | 54 +++++++++++--------
 1 file changed, 32 insertions(+), 22 deletions(-)

diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/Setup.c 
b/MdeModulePkg/Universal/SetupBrowserDxe/Setup.c
index 5158baf5bd..8b1c8c9bc1 100644
--- a/MdeModulePkg/Universal/SetupBrowserDxe/Setup.c
+++ b/MdeModulePkg/Universal/SetupBrowserDxe/Setup.c
@@ -5634,32 +5634,42 @@ LoadStorage (
     ConfigRequest = Storage->ConfigRequest;
   }
 
-  //
-  // Request current settings from Configuration Driver
-  //
-  Status = mHiiConfigRouting->ExtractConfig (
-                                mHiiConfigRouting,
-                                ConfigRequest,
-                                &Progress,
-                                &Result
-                                );
-
-  //
-  // If get value fail, extract default from IFR binary
-  //
-  if (EFI_ERROR (Status)) {
-    ExtractDefault (FormSet, NULL, EFI_HII_DEFAULT_CLASS_STANDARD, 
FormSetLevel, GetDefaultForStorage, Storage->BrowserStorage, TRUE, TRUE);
-  } else {
+  if (Storage->BrowserStorage->Type == EFI_HII_VARSTORE_EFI_VARIABLE_BUFFER) {
     //
-    // Convert Result from <ConfigAltResp> to <ConfigResp>
+    // Call GetVariable directly for EfiVarStore
     //
-    StrPtr = StrStr (Result, L"&GUID=");
-    if (StrPtr != NULL) {
-      *StrPtr = L'\0';
+    Status = gRT->GetVariable (Storage->BrowserStorage->Name, 
&(Storage->BrowserStorage->Guid), NULL, 
(UINTN*)(&(Storage->BrowserStorage->Size)), 
Storage->BrowserStorage->EditBuffer);
+    if (EFI_ERROR (Status)) {
+      ExtractDefault (FormSet, NULL, EFI_HII_DEFAULT_CLASS_STANDARD, 
FormSetLevel, GetDefaultForStorage, Storage->BrowserStorage, TRUE, TRUE);
     }
+  } else {
+    //
+    // Request current settings from Configuration Driver
+    //
+    Status = mHiiConfigRouting->ExtractConfig (
+                                  mHiiConfigRouting,
+                                  ConfigRequest,
+                                  &Progress,
+                                  &Result
+                                  );
 
-    Status = ConfigRespToStorage (Storage->BrowserStorage, Result);
-    FreePool (Result);
+    //
+    // If get value fail, extract default from IFR binary
+    //
+    if (EFI_ERROR (Status)) {
+      ExtractDefault (FormSet, NULL, EFI_HII_DEFAULT_CLASS_STANDARD, 
FormSetLevel, GetDefaultForStorage, Storage->BrowserStorage, TRUE, TRUE);
+    } else {
+      //
+      // Convert Result from <ConfigAltResp> to <ConfigResp>
+      //
+      StrPtr = StrStr (Result, L"&GUID=");
+      if (StrPtr != NULL) {
+        *StrPtr = L'\0';
+      }
+
+      Status = ConfigRespToStorage (Storage->BrowserStorage, Result);
+      FreePool (Result);
+    }
   }
 
   Storage->BrowserStorage->ConfigRequest = AllocateCopyPool (StrSize 
(Storage->ConfigRequest), Storage->ConfigRequest);
-- 
2.39.1.windows.1



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