OvmfPkg BDS: Remove support for loading vgabios-cirrus.bin from 0xc0000

Older QEMU versions would load vgabios-cirrus.bin at 0xc0000 in
system RAM. We would then find this ROM, and try to run it, since
it would be our QEMU Video driver.

Now, the QEMU Video driver is just merged into the main OVMF
firmware image, so this support is unused.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13522 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/OvmfPkg/Library/PlatformBdsLib/BdsPlatform.c b/OvmfPkg/Library/PlatformBdsLib/BdsPlatform.c
index 9faab8521e068d1df47824e37b429445093c9a31..c960c6cdbfa6b40feb6b4c9b2d2363b07fa5a5a8 100644 (file)
--- a/OvmfPkg/Library/PlatformBdsLib/BdsPlatform.c
+++ b/OvmfPkg/Library/PlatformBdsLib/BdsPlatform.c
@@ -73,19 +73,6 @@ InstallDevicePathCallback (
   VOID\r
   );\r
 \r
-STATIC\r
-VOID\r
-LoadVideoRom (\r
-  VOID\r
-  );\r
-\r
-STATIC\r
-EFI_STATUS\r
-PciRomLoadEfiDriversFromRomImage (\r
-  IN EFI_PHYSICAL_ADDRESS    Rom,\r
-  IN UINTN                   RomSize\r
-  );\r
-\r
 //\r
 // BDS Platform Functions\r
 //\r
@@ -111,7 +98,6 @@ Returns:
 {\r
   DEBUG ((EFI_D_INFO, "PlatformBdsInit\n"));\r
   InstallDevicePathCallback ();\r
-  LoadVideoRom ();\r
 }\r
 \r
 \r
@@ -1455,195 +1441,3 @@ LockKeyboards (
     return EFI_UNSUPPORTED;\r
 }\r
 \r
-\r
-STATIC\r
-VOID\r
-LoadVideoRom (\r
-  VOID\r
-  )\r
-{\r
-  PCI_DATA_STRUCTURE            *Pcir;\r
-  UINTN                         RomSize;\r
-\r
-  //\r
-  // The virtual machines sometimes load the video rom image\r
-  // directly at the legacy video BIOS location of C000:0000,\r
-  // and do not implement the PCI expansion ROM feature.\r
-  //\r
-  Pcir = (PCI_DATA_STRUCTURE *) (UINTN) 0xc0000;\r
-  RomSize = Pcir->ImageLength * 512;\r
-  PciRomLoadEfiDriversFromRomImage (0xc0000, RomSize);\r
-}\r
-\r
-\r
-STATIC\r
-EFI_STATUS\r
-PciRomLoadEfiDriversFromRomImage (\r
-  IN EFI_PHYSICAL_ADDRESS    Rom,\r
-  IN UINTN                   RomSize\r
-  )\r
-{\r
-  CHAR16                        *FileName;\r
-  EFI_PCI_EXPANSION_ROM_HEADER  *EfiRomHeader;\r
-  PCI_DATA_STRUCTURE            *Pcir;\r
-  UINTN                         ImageIndex;\r
-  UINTN                         RomOffset;\r
-  UINT32                        ImageSize;\r
-  UINT16                        ImageOffset;\r
-  EFI_HANDLE                    ImageHandle;\r
-  EFI_STATUS                    Status;\r
-  EFI_STATUS                    retStatus;\r
-  EFI_DEVICE_PATH_PROTOCOL      *FilePath;\r
-  BOOLEAN                       SkipImage;\r
-  UINT32                        DestinationSize;\r
-  UINT32                        ScratchSize;\r
-  UINT8                         *Scratch;\r
-  VOID                          *ImageBuffer;\r
-  VOID                          *DecompressedImageBuffer;\r
-  UINT32                        ImageLength;\r
-  EFI_DECOMPRESS_PROTOCOL       *Decompress;\r
-  UINT32                        InitializationSize;\r
-\r
-  FileName = L"PciRomInMemory";\r
-\r
-  //FileName = L"PciRom Addr=0000000000000000";\r
-  //HexToString (&FileName[12], Rom, 16);\r
-\r
-  ImageIndex    = 0;\r
-  retStatus     = EFI_NOT_FOUND;\r
-  RomOffset  = (UINTN) Rom;\r
-\r
-  do {\r
-\r
-    EfiRomHeader = (EFI_PCI_EXPANSION_ROM_HEADER *) (UINTN) RomOffset;\r
-\r
-    if (EfiRomHeader->Signature != PCI_EXPANSION_ROM_HEADER_SIGNATURE) {\r
-      return retStatus;\r
-    }\r
-\r
-    //\r
-    // If the pointer to the PCI Data Structure is invalid, no further images can be located. \r
-    // The PCI Data Structure must be DWORD aligned. \r
-    //\r
-    if (EfiRomHeader->PcirOffset == 0 ||\r
-        (EfiRomHeader->PcirOffset & 3) != 0 ||\r
-        RomOffset - (UINTN)Rom + EfiRomHeader->PcirOffset + sizeof (PCI_DATA_STRUCTURE) > RomSize) {\r
-      break;\r
-    }\r
-    Pcir      = (PCI_DATA_STRUCTURE *) (UINTN) (RomOffset + EfiRomHeader->PcirOffset);\r
-    //\r
-    // If a valid signature is not present in the PCI Data Structure, no further images can be located.\r
-    //\r
-    if (Pcir->Signature != PCI_DATA_STRUCTURE_SIGNATURE) {\r
-      break;\r
-    }\r
-    ImageSize = Pcir->ImageLength * 512;\r
-    if (RomOffset - (UINTN)Rom + ImageSize > RomSize) {\r
-      break;\r
-    }\r
-\r
-    if ((Pcir->CodeType == PCI_CODE_TYPE_EFI_IMAGE) &&\r
-        (EfiRomHeader->EfiSignature == EFI_PCI_EXPANSION_ROM_HEADER_EFISIGNATURE) &&\r
-        ((EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER) ||\r
-         (EfiRomHeader->EfiSubsystem == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER))) {\r
-\r
-      ImageOffset             = EfiRomHeader->EfiImageHeaderOffset;\r
-      InitializationSize      = EfiRomHeader->InitializationSize * 512;\r
-\r
-      if (InitializationSize <= ImageSize && ImageOffset < InitializationSize) {\r
-\r
-        ImageBuffer             = (VOID *) (UINTN) (RomOffset + ImageOffset);\r
-        ImageLength             = InitializationSize - ImageOffset;\r
-        DecompressedImageBuffer = NULL;\r
-\r
-        //\r
-        // decompress here if needed\r
-        //\r
-        SkipImage = FALSE;\r
-        if (EfiRomHeader->CompressionType > EFI_PCI_EXPANSION_ROM_HEADER_COMPRESSED) {\r
-          SkipImage = TRUE;\r
-        }\r
-\r
-        if (EfiRomHeader->CompressionType == EFI_PCI_EXPANSION_ROM_HEADER_COMPRESSED) {\r
-          Status = gBS->LocateProtocol (&gEfiDecompressProtocolGuid, NULL, (VOID **) &Decompress);\r
-          if (EFI_ERROR (Status)) {\r
-            SkipImage = TRUE;\r
-          } else {\r
-            SkipImage = TRUE;\r
-            Status = Decompress->GetInfo (\r
-                                  Decompress,\r
-                                  ImageBuffer,\r
-                                  ImageLength,\r
-                                  &DestinationSize,\r
-                                  &ScratchSize\r
-                                  );\r
-            if (!EFI_ERROR (Status)) {\r
-              DecompressedImageBuffer = NULL;\r
-              DecompressedImageBuffer = AllocatePool (DestinationSize);\r
-              if (DecompressedImageBuffer != NULL) {\r
-                Scratch = AllocatePool (ScratchSize);\r
-                if (Scratch != NULL) {\r
-                  Status = Decompress->Decompress (\r
-                                        Decompress,\r
-                                        ImageBuffer,\r
-                                        ImageLength,\r
-                                        DecompressedImageBuffer,\r
-                                        DestinationSize,\r
-                                        Scratch,\r
-                                        ScratchSize\r
-                                        );\r
-                  if (!EFI_ERROR (Status)) {\r
-                    ImageBuffer = DecompressedImageBuffer;\r
-                    ImageLength = DestinationSize;\r
-                    SkipImage   = FALSE;\r
-                  }\r
-\r
-                  gBS->FreePool (Scratch);\r
-                }\r
-              }\r
-            }\r
-          }\r
-        }\r
-\r
-        if (!SkipImage) {\r
-\r
-          //\r
-          // load image and start image\r
-          //\r
-\r
-          FilePath = FileDevicePath (NULL, FileName);\r
-\r
-          Status = gBS->LoadImage (\r
-                          FALSE,\r
-                          gImageHandle,\r
-                          FilePath,\r
-                          ImageBuffer,\r
-                          ImageLength,\r
-                          &ImageHandle\r
-                          );\r
-          if (!EFI_ERROR (Status)) {\r
-            Status = gBS->StartImage (ImageHandle, NULL, NULL);\r
-            if (!EFI_ERROR (Status)) {\r
-              retStatus = Status;\r
-            }\r
-          }\r
-          if (FilePath != NULL) {\r
-            gBS->FreePool (FilePath);\r
-          }\r
-        }\r
-\r
-        if (DecompressedImageBuffer != NULL) {\r
-          gBS->FreePool (DecompressedImageBuffer);\r
-        }\r
-\r
-      }\r
-    }\r
-\r
-    RomOffset = RomOffset + ImageSize;\r
-    ImageIndex++;\r
-  } while (((Pcir->Indicator & 0x80) == 0x00) && ((RomOffset - (UINTN) Rom) < RomSize));\r
-\r
-  return retStatus;\r
-}\r
-\r
-\r