BlSupportDxe.c

Go to the documentation of this file.

 
#include "BlSupportDxe.h"
 
EFI_STATUS
ReserveResourceInGcd (
  IN BOOLEAN               IsMMIO,
  IN UINTN                 GcdType,
  IN EFI_PHYSICAL_ADDRESS  BaseAddress,
  IN UINT64                Length,
  IN UINTN                 Alignment,
  IN EFI_HANDLE            ImageHandle
  )
{
  EFI_STATUS  Status;
 
  if (IsMMIO) {
    Status = gDS->AddMemorySpace (
                    GcdType,
                    BaseAddress,
                    Length,
                    EFI_MEMORY_UC
                    );
    if (EFI_ERROR (Status)) {
      DEBUG ((
        DEBUG_WARN,
        "Failed to add memory space :0x%lx 0x%lx\n",
        BaseAddress,
        Length
        ));
    }
 
    Status = gDS->AllocateMemorySpace (
                    EfiGcdAllocateAddress,
                    GcdType,
                    Alignment,
                    Length,
                    &BaseAddress,
                    ImageHandle,
                    NULL
                    );
  } else {
    Status = gDS->AddIoSpace (
                    GcdType,
                    BaseAddress,
                    Length
                    );
    if (EFI_ERROR (Status)) {
      DEBUG ((
        DEBUG_WARN,
        "Failed to add IO space :0x%lx 0x%lx\n",
        BaseAddress,
        Length
        ));
    }
 
    Status = gDS->AllocateIoSpace (
                    EfiGcdAllocateAddress,
                    GcdType,
                    Alignment,
                    Length,
                    &BaseAddress,
                    ImageHandle,
                    NULL
                    );
  }
 
  return Status;
}
 
EFI_STATUS
EFIAPI
BlDxeEntryPoint (
  IN EFI_HANDLE        ImageHandle,
  IN EFI_SYSTEM_TABLE  *SystemTable
  )
{
  EFI_STATUS                 Status;
  EFI_HOB_GUID_TYPE          *GuidHob;
  EFI_PEI_GRAPHICS_INFO_HOB  *GfxInfo;
  ACPI_BOARD_INFO            *AcpiBoardInfo;
 
  Status = EFI_SUCCESS;
  //
  // Report MMIO/IO Resources
  //
  ReserveResourceInGcd (TRUE, EfiGcdMemoryTypeMemoryMappedIo, 0xFEC00000, SIZE_4KB, 0, ImageHandle); // IOAPIC
 
  ReserveResourceInGcd (TRUE, EfiGcdMemoryTypeMemoryMappedIo, 0xFED00000, SIZE_1KB, 0, ImageHandle); // HPET
 
  //
  // Find the frame buffer information and update PCDs
  //
  GuidHob = GetFirstGuidHob (&gEfiGraphicsInfoHobGuid);
  if (GuidHob != NULL) {
    GfxInfo = (EFI_PEI_GRAPHICS_INFO_HOB *)GET_GUID_HOB_DATA (GuidHob);
    Status  = PcdSet32S (PcdVideoHorizontalResolution, GfxInfo->GraphicsMode.HorizontalResolution);
    ASSERT_EFI_ERROR (Status);
    Status = PcdSet32S (PcdVideoVerticalResolution, GfxInfo->GraphicsMode.VerticalResolution);
    ASSERT_EFI_ERROR (Status);
    Status = PcdSet32S (PcdSetupVideoHorizontalResolution, GfxInfo->GraphicsMode.HorizontalResolution);
    ASSERT_EFI_ERROR (Status);
    Status = PcdSet32S (PcdSetupVideoVerticalResolution, GfxInfo->GraphicsMode.VerticalResolution);
    ASSERT_EFI_ERROR (Status);
  }
 
  //
  // Set PcdPciExpressBaseAddress and PcdPciExpressBaseSize by HOB info
  //
  GuidHob = GetFirstGuidHob (&gUefiAcpiBoardInfoGuid);
  if (GuidHob != NULL) {
    AcpiBoardInfo = (ACPI_BOARD_INFO *)GET_GUID_HOB_DATA (GuidHob);
    Status        = PcdSet64S (PcdPciExpressBaseAddress, AcpiBoardInfo->PcieBaseAddress);
    ASSERT_EFI_ERROR (Status);
    Status = PcdSet64S (PcdPciExpressBaseSize, AcpiBoardInfo->PcieBaseSize);
    ASSERT_EFI_ERROR (Status);
  }
 
  return EFI_SUCCESS;
}