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/** @file
This driver will report some MMIO/IO resources to dxe core, extract smbios and acpi
tables from bootloader.
Copyright (c) 2014 - 2021, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "BlSupportDxe.h"
/**
Reserve MMIO/IO resource in GCD
@param IsMMIO Flag of whether it is mmio resource or io resource.
@param GcdType Type of the space.
@param BaseAddress Base address of the space.
@param Length Length of the space.
@param Alignment Align with 2^Alignment
@param ImageHandle Handle for the image of this driver.
@retval EFI_SUCCESS Reserve successful
**/
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;
}
/**
Main entry for the bootloader support DXE module.
@param[in] ImageHandle The firmware allocated handle for the EFI image.
@param[in] SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
@retval other Some error occurs when executing this entry point.
**/
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;
}
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