/** @file
|
|
This file contains support for ACPI Tables that are generated at boot time.
|
|
Copyright (c) 2015, ARM Ltd. All rights reserved.<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
**/
|
|
#include "ArmPlatform.h"
|
#include "ArmJunoDxeInternal.h"
|
|
#include <IndustryStandard/MemoryMappedConfigurationSpaceAccessTable.h>
|
|
/*
|
* Memory Mapped Configuration Space Access Table (MCFG)
|
*/
|
typedef struct {
|
EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_BASE_ADDRESS_TABLE_HEADER Header;
|
EFI_ACPI_MEMORY_MAPPED_ENHANCED_CONFIGURATION_SPACE_BASE_ADDRESS_ALLOCATION_STRUCTURE Entry;
|
} MEMORY_MAPPED_CONFIGURATION_SPACE_BASE_ACCESS_TABLE;
|
|
MEMORY_MAPPED_CONFIGURATION_SPACE_BASE_ACCESS_TABLE mAcpiMcfgTable = {
|
{
|
ARM_ACPI_HEADER (
|
EFI_ACPI_5_0_PCI_EXPRESS_MEMORY_MAPPED_CONFIGURATION_SPACE_BASE_ADDRESS_DESCRIPTION_TABLE_SIGNATURE,
|
MEMORY_MAPPED_CONFIGURATION_SPACE_BASE_ACCESS_TABLE,
|
EFI_ACPI_MEMORY_MAPPED_CONFIGURATION_SPACE_ACCESS_TABLE_REVISION
|
),
|
0, // Reserved
|
}, {
|
FixedPcdGet32 (PcdPciConfigurationSpaceBaseAddress),
|
0, // PciSegmentGroupNumber
|
FixedPcdGet32 (PcdPciBusMin),
|
FixedPcdGet32 (PcdPciBusMax),
|
0 // Reserved;
|
}
|
};
|
|
/**
|
* Callback called when ACPI Protocol is installed
|
*/
|
VOID
|
AcpiPciNotificationEvent (
|
IN EFI_EVENT Event,
|
IN VOID *Context
|
)
|
{
|
EFI_STATUS Status;
|
EFI_ACPI_TABLE_PROTOCOL *AcpiTableProtocol;
|
UINTN AcpiTableKey;
|
|
//
|
// Ensure the ACPI protocol is installed
|
//
|
Status = gBS->LocateProtocol (
|
&gEfiAcpiTableProtocolGuid,
|
NULL,
|
(VOID**)&AcpiTableProtocol
|
);
|
if (EFI_ERROR (Status)) {
|
return;
|
}
|
|
//
|
// Install MCFG Table
|
//
|
AcpiTableKey = 0;
|
Status = AcpiTableProtocol->InstallAcpiTable (AcpiTableProtocol, &mAcpiMcfgTable, sizeof (mAcpiMcfgTable), &AcpiTableKey);
|
ASSERT_EFI_ERROR (Status);
|
}
|
