[edk2-devel] [PATCH v2] MdeModulePkg/SetupBrowser: Load storage via GetVariable for EfiVarStore

["Dandan Bi" <dandan.bi@intel.com>]

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 <gaoliming@byosoft.com.cn>
Cc: Eric Dong <eric.dong@intel.com>
Signed-off-by: Dandan Bi <dandan.bi@intel.com>
---
v2: Fix coding style issue.

 .../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..2f7b11b1aa 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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