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audk/DynamicTablesPkg/Library/Acpi/Arm/AcpiMadtLibArm/MadtGenerator.c

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/** @file
MADT Table Generator
Copyright (c) 2017 - 2019, ARM Limited. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent
@par Reference(s):
- ACPI 6.3 Specification - January 2019
**/
#include <Library/AcpiLib.h>
#include <Library/DebugLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Protocol/AcpiTable.h>
// Module specific include files.
#include <AcpiTableGenerator.h>
#include <ConfigurationManagerObject.h>
#include <ConfigurationManagerHelper.h>
#include <Library/TableHelperLib.h>
#include <Protocol/ConfigurationManagerProtocol.h>
/** ARM standard MADT Generator
Requirements:
The following Configuration Manager Object(s) are required by
this Generator:
- EArmObjGicCInfo
- EArmObjGicDInfo
- EArmObjGicMsiFrameInfo (OPTIONAL)
- EArmObjGicRedistributorInfo (OPTIONAL)
- EArmObjGicItsInfo (OPTIONAL)
*/
/** This macro expands to a function that retrieves the GIC
CPU interface Information from the Configuration Manager.
*/
GET_OBJECT_LIST (
EObjNameSpaceArm,
EArmObjGicCInfo,
CM_ARM_GICC_INFO
);
/** This macro expands to a function that retrieves the GIC
Distributor Information from the Configuration Manager.
*/
GET_OBJECT_LIST (
EObjNameSpaceArm,
EArmObjGicDInfo,
CM_ARM_GICD_INFO
);
/** This macro expands to a function that retrieves the GIC
MSI Frame Information from the Configuration Manager.
*/
GET_OBJECT_LIST (
EObjNameSpaceArm,
EArmObjGicMsiFrameInfo,
CM_ARM_GIC_MSI_FRAME_INFO
);
/** This macro expands to a function that retrieves the GIC
Redistributor Information from the Configuration Manager.
*/
GET_OBJECT_LIST (
EObjNameSpaceArm,
EArmObjGicRedistributorInfo,
CM_ARM_GIC_REDIST_INFO
);
/** This macro expands to a function that retrieves the GIC
Interrupt Translation Service Information from the
Configuration Manager.
*/
GET_OBJECT_LIST (
EObjNameSpaceArm,
EArmObjGicItsInfo,
CM_ARM_GIC_ITS_INFO
);
/** This function updates the GIC CPU Interface Information in the
EFI_ACPI_6_3_GIC_STRUCTURE structure.
@param [in] Gicc Pointer to GIC CPU Interface structure.
@param [in] GicCInfo Pointer to the GIC CPU Interface Information.
@param [in] MadtRev MADT table revision.
**/
STATIC
VOID
AddGICC (
IN EFI_ACPI_6_3_GIC_STRUCTURE * CONST Gicc,
IN CONST CM_ARM_GICC_INFO * CONST GicCInfo,
IN CONST UINT8 MadtRev
)
{
ASSERT (Gicc != NULL);
ASSERT (GicCInfo != NULL);
// UINT8 Type
Gicc->Type = EFI_ACPI_6_3_GIC;
// UINT8 Length
Gicc->Length = sizeof (EFI_ACPI_6_3_GIC_STRUCTURE);
// UINT16 Reserved
Gicc->Reserved = EFI_ACPI_RESERVED_WORD;
// UINT32 CPUInterfaceNumber
Gicc->CPUInterfaceNumber = GicCInfo->CPUInterfaceNumber;
// UINT32 AcpiProcessorUid
Gicc->AcpiProcessorUid = GicCInfo->AcpiProcessorUid;
// UINT32 Flags
Gicc->Flags = GicCInfo->Flags;
// UINT32 ParkingProtocolVersion
Gicc->ParkingProtocolVersion = GicCInfo->ParkingProtocolVersion;
// UINT32 PerformanceInterruptGsiv
Gicc->PerformanceInterruptGsiv = GicCInfo->PerformanceInterruptGsiv;
// UINT64 ParkedAddress
Gicc->ParkedAddress = GicCInfo->ParkedAddress;
// UINT64 PhysicalBaseAddress
Gicc->PhysicalBaseAddress = GicCInfo->PhysicalBaseAddress;
// UINT64 GICV
Gicc->GICV = GicCInfo->GICV;
// UINT64 GICH
Gicc->GICH = GicCInfo->GICH;
// UINT32 VGICMaintenanceInterrupt
Gicc->VGICMaintenanceInterrupt = GicCInfo->VGICMaintenanceInterrupt;
// UINT64 GICRBaseAddress
Gicc->GICRBaseAddress = GicCInfo->GICRBaseAddress;
// UINT64 MPIDR
Gicc->MPIDR = GicCInfo->MPIDR;
// UINT8 ProcessorPowerEfficiencyClass
Gicc->ProcessorPowerEfficiencyClass =
GicCInfo->ProcessorPowerEfficiencyClass;
// UINT8 Reserved2
Gicc->Reserved2 = EFI_ACPI_RESERVED_BYTE;
// UINT16 SpeOverflowInterrupt
if (MadtRev > EFI_ACPI_6_2_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION) {
Gicc->SpeOverflowInterrupt = GicCInfo->SpeOverflowInterrupt;
} else {
// Setting SpeOverflowInterrupt to 0 ensures backward compatibility with
// ACPI 6.2 by also clearing the Reserved2[1] and Reserved2[2] fields
// in EFI_ACPI_6_2_GIC_STRUCTURE.
Gicc->SpeOverflowInterrupt = 0;
}
}
/**
Function to test if two GIC CPU Interface information structures have the
same ACPI Processor UID.
@param [in] GicCInfo1 Pointer to the first GICC info structure.
@param [in] GicCInfo2 Pointer to the second GICC info structure.
@param [in] Index1 Index of GicCInfo1 in the shared list of GIC
CPU Interface Info structures.
@param [in] Index2 Index of GicCInfo2 in the shared list of GIC
CPU Interface Info structures.
@retval TRUE GicCInfo1 and GicCInfo2 have the same UID.
@retval FALSE GicCInfo1 and GicCInfo2 have different UIDs.
**/
BOOLEAN
EFIAPI
IsAcpiUidEqual (
IN CONST VOID * GicCInfo1,
IN CONST VOID * GicCInfo2,
IN UINTN Index1,
IN UINTN Index2
)
{
UINT32 Uid1;
UINT32 Uid2;
ASSERT ((GicCInfo1 != NULL) && (GicCInfo2 != NULL));
Uid1 = ((CM_ARM_GICC_INFO*)GicCInfo1)->AcpiProcessorUid;
Uid2 = ((CM_ARM_GICC_INFO*)GicCInfo2)->AcpiProcessorUid;
if (Uid1 == Uid2) {
DEBUG ((
DEBUG_ERROR,
"ERROR: MADT: GICC Info Structures %d and %d have the same ACPI " \
"Processor UID: 0x%x.\n",
Index1,
Index2,
Uid1
));
return TRUE;
}
return FALSE;
}
/** Add the GIC CPU Interface Information to the MADT Table.
This function also checks for duplicate ACPI Processor UIDs.
@param [in] Gicc Pointer to GIC CPU Interface structure list.
@param [in] GicCInfo Pointer to the GIC CPU Information list.
@param [in] GicCCount Count of GIC CPU Interfaces.
@param [in] MadtRev MADT table revision.
@retval EFI_SUCCESS GIC CPU Interface Information was added
successfully.
@retval EFI_INVALID_PARAMETER One or more invalid GIC CPU Info values were
provided and the generator failed to add the
information to the table.
**/
STATIC
EFI_STATUS
AddGICCList (
IN EFI_ACPI_6_3_GIC_STRUCTURE * Gicc,
IN CONST CM_ARM_GICC_INFO * GicCInfo,
IN UINT32 GicCCount,
IN CONST UINT8 MadtRev
)
{
BOOLEAN IsAcpiProcUidDuplicated;
ASSERT (Gicc != NULL);
ASSERT (GicCInfo != NULL);
IsAcpiProcUidDuplicated = FindDuplicateValue (
GicCInfo,
GicCCount,
sizeof (CM_ARM_GICC_INFO),
IsAcpiUidEqual
);
// Duplicate ACPI Processor UID was found so the GICC info provided
// is invalid
if (IsAcpiProcUidDuplicated) {
return EFI_INVALID_PARAMETER;
}
while (GicCCount-- != 0) {
AddGICC (Gicc++, GicCInfo++, MadtRev);
}
return EFI_SUCCESS;
}
/** Update the GIC Distributor Information in the MADT Table.
@param [in] Gicd Pointer to GIC Distributor structure.
@param [in] GicDInfo Pointer to the GIC Distributor Information.
**/
STATIC
VOID
AddGICD (
EFI_ACPI_6_3_GIC_DISTRIBUTOR_STRUCTURE * CONST Gicd,
CONST CM_ARM_GICD_INFO * CONST GicDInfo
)
{
ASSERT (Gicd != NULL);
ASSERT (GicDInfo != NULL);
// UINT8 Type
Gicd->Type = EFI_ACPI_6_3_GICD;
// UINT8 Length
Gicd->Length = sizeof (EFI_ACPI_6_3_GIC_DISTRIBUTOR_STRUCTURE);
// UINT16 Reserved
Gicd->Reserved1 = EFI_ACPI_RESERVED_WORD;
// UINT32 Identifier
// One, and only one, GIC distributor structure must be present
// in the MADT for an ARM based system
Gicd->GicId = 0;
// UINT64 PhysicalBaseAddress
Gicd->PhysicalBaseAddress = GicDInfo->PhysicalBaseAddress;
// UINT32 VectorBase
Gicd->SystemVectorBase = EFI_ACPI_RESERVED_DWORD;
// UINT8 GicVersion
Gicd->GicVersion = GicDInfo->GicVersion;
// UINT8 Reserved2[3]
Gicd->Reserved2[0] = EFI_ACPI_RESERVED_BYTE;
Gicd->Reserved2[1] = EFI_ACPI_RESERVED_BYTE;
Gicd->Reserved2[2] = EFI_ACPI_RESERVED_BYTE;
}
/** Update the GIC MSI Frame Information.
@param [in] GicMsiFrame Pointer to GIC MSI Frame structure.
@param [in] GicMsiFrameInfo Pointer to the GIC MSI Frame Information.
**/
STATIC
VOID
AddGICMsiFrame (
IN EFI_ACPI_6_3_GIC_MSI_FRAME_STRUCTURE * CONST GicMsiFrame,
IN CONST CM_ARM_GIC_MSI_FRAME_INFO * CONST GicMsiFrameInfo
)
{
ASSERT (GicMsiFrame != NULL);
ASSERT (GicMsiFrameInfo != NULL);
GicMsiFrame->Type = EFI_ACPI_6_3_GIC_MSI_FRAME;
GicMsiFrame->Length = sizeof (EFI_ACPI_6_3_GIC_MSI_FRAME_STRUCTURE);
GicMsiFrame->Reserved1 = EFI_ACPI_RESERVED_WORD;
GicMsiFrame->GicMsiFrameId = GicMsiFrameInfo->GicMsiFrameId;
GicMsiFrame->PhysicalBaseAddress = GicMsiFrameInfo->PhysicalBaseAddress;
GicMsiFrame->Flags = GicMsiFrameInfo->Flags;
GicMsiFrame->SPICount = GicMsiFrameInfo->SPICount;
GicMsiFrame->SPIBase = GicMsiFrameInfo->SPIBase;
}
/** Add the GIC MSI Frame Information to the MADT Table.
@param [in] GicMsiFrame Pointer to GIC MSI Frame structure list.
@param [in] GicMsiFrameInfo Pointer to the GIC MSI Frame info list.
@param [in] GicMsiFrameCount Count of GIC MSI Frames.
**/
STATIC
VOID
AddGICMsiFrameInfoList (
IN EFI_ACPI_6_3_GIC_MSI_FRAME_STRUCTURE * GicMsiFrame,
IN CONST CM_ARM_GIC_MSI_FRAME_INFO * GicMsiFrameInfo,
IN UINT32 GicMsiFrameCount
)
{
ASSERT (GicMsiFrame != NULL);
ASSERT (GicMsiFrameInfo != NULL);
while (GicMsiFrameCount-- != 0) {
AddGICMsiFrame (GicMsiFrame++, GicMsiFrameInfo++);
}
}
/** Update the GIC Redistributor Information.
@param [in] Gicr Pointer to GIC Redistributor structure.
@param [in] GicRedisributorInfo Pointer to the GIC Redistributor Info.
**/
STATIC
VOID
AddGICRedistributor (
IN EFI_ACPI_6_3_GICR_STRUCTURE * CONST Gicr,
IN CONST CM_ARM_GIC_REDIST_INFO * CONST GicRedisributorInfo
)
{
ASSERT (Gicr != NULL);
ASSERT (GicRedisributorInfo != NULL);
Gicr->Type = EFI_ACPI_6_3_GICR;
Gicr->Length = sizeof (EFI_ACPI_6_3_GICR_STRUCTURE);
Gicr->Reserved = EFI_ACPI_RESERVED_WORD;
Gicr->DiscoveryRangeBaseAddress =
GicRedisributorInfo->DiscoveryRangeBaseAddress;
Gicr->DiscoveryRangeLength = GicRedisributorInfo->DiscoveryRangeLength;
}
/** Add the GIC Redistributor Information to the MADT Table.
@param [in] Gicr Pointer to GIC Redistributor structure list.
@param [in] GicRInfo Pointer to the GIC Distributor info list.
@param [in] GicRCount Count of GIC Distributors.
**/
STATIC
VOID
AddGICRedistributorList (
IN EFI_ACPI_6_3_GICR_STRUCTURE * Gicr,
IN CONST CM_ARM_GIC_REDIST_INFO * GicRInfo,
IN UINT32 GicRCount
)
{
ASSERT (Gicr != NULL);
ASSERT (GicRInfo != NULL);
while (GicRCount-- != 0) {
AddGICRedistributor (Gicr++, GicRInfo++);
}
}
/** Update the GIC Interrupt Translation Service Information
@param [in] GicIts Pointer to GIC ITS structure.
@param [in] GicItsInfo Pointer to the GIC ITS Information.
**/
STATIC
VOID
AddGICInterruptTranslationService (
IN EFI_ACPI_6_3_GIC_ITS_STRUCTURE * CONST GicIts,
IN CONST CM_ARM_GIC_ITS_INFO * CONST GicItsInfo
)
{
ASSERT (GicIts != NULL);
ASSERT (GicItsInfo != NULL);
GicIts->Type = EFI_ACPI_6_3_GIC_ITS;
GicIts->Length = sizeof (EFI_ACPI_6_3_GIC_ITS_STRUCTURE);
GicIts->Reserved = EFI_ACPI_RESERVED_WORD;
GicIts->GicItsId = GicItsInfo->GicItsId;
GicIts->PhysicalBaseAddress = GicItsInfo->PhysicalBaseAddress;
GicIts->Reserved2 = EFI_ACPI_RESERVED_DWORD;
}
/** Add the GIC Interrupt Translation Service Information
to the MADT Table.
@param [in] GicIts Pointer to GIC ITS structure list.
@param [in] GicItsInfo Pointer to the GIC ITS list.
@param [in] GicItsCount Count of GIC ITS.
**/
STATIC
VOID
AddGICItsList (
IN EFI_ACPI_6_3_GIC_ITS_STRUCTURE * GicIts,
IN CONST CM_ARM_GIC_ITS_INFO * GicItsInfo,
IN UINT32 GicItsCount
)
{
ASSERT (GicIts != NULL);
ASSERT (GicItsInfo != NULL);
while (GicItsCount-- != 0) {
AddGICInterruptTranslationService (GicIts++, GicItsInfo++);
}
}
/** Construct the MADT ACPI table.
This function invokes the Configuration Manager protocol interface
to get the required hardware information for generating the ACPI
table.
If this function allocates any resources then they must be freed
in the FreeXXXXTableResources function.
@param [in] This Pointer to the table generator.
@param [in] AcpiTableInfo Pointer to the ACPI Table Info.
@param [in] CfgMgrProtocol Pointer to the Configuration Manager
Protocol Interface.
@param [out] Table Pointer to the constructed ACPI Table.
@retval EFI_SUCCESS Table generated successfully.
@retval EFI_INVALID_PARAMETER A parameter is invalid.
@retval EFI_NOT_FOUND The required object was not found.
@retval EFI_BAD_BUFFER_SIZE The size returned by the Configuration
Manager is less than the Object size for the
requested object.
**/
STATIC
EFI_STATUS
EFIAPI
BuildMadtTable (
IN CONST ACPI_TABLE_GENERATOR * CONST This,
IN CONST CM_STD_OBJ_ACPI_TABLE_INFO * CONST AcpiTableInfo,
IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST CfgMgrProtocol,
OUT EFI_ACPI_DESCRIPTION_HEADER ** CONST Table
)
{
EFI_STATUS Status;
UINT32 TableSize;
UINT32 GicCCount;
UINT32 GicDCount;
UINT32 GicMSICount;
UINT32 GicRedistCount;
UINT32 GicItsCount;
CM_ARM_GICC_INFO * GicCInfo;
CM_ARM_GICD_INFO * GicDInfo;
CM_ARM_GIC_MSI_FRAME_INFO * GicMSIInfo;
CM_ARM_GIC_REDIST_INFO * GicRedistInfo;
CM_ARM_GIC_ITS_INFO * GicItsInfo;
UINT32 GicCOffset;
UINT32 GicDOffset;
UINT32 GicMSIOffset;
UINT32 GicRedistOffset;
UINT32 GicItsOffset;
EFI_ACPI_6_3_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER * Madt;
ASSERT (This != NULL);
ASSERT (AcpiTableInfo != NULL);
ASSERT (CfgMgrProtocol != NULL);
ASSERT (Table != NULL);
ASSERT (AcpiTableInfo->TableGeneratorId == This->GeneratorID);
ASSERT (AcpiTableInfo->AcpiTableSignature == This->AcpiTableSignature);
if ((AcpiTableInfo->AcpiTableRevision < This->MinAcpiTableRevision) ||
(AcpiTableInfo->AcpiTableRevision > This->AcpiTableRevision)) {
DEBUG ((
DEBUG_ERROR,
"ERROR: MADT: Requested table revision = %d, is not supported."
"Supported table revision: Minimum = %d, Maximum = %d\n",
AcpiTableInfo->AcpiTableRevision,
This->MinAcpiTableRevision,
This->AcpiTableRevision
));
return EFI_INVALID_PARAMETER;
}
*Table = NULL;
Status = GetEArmObjGicCInfo (
CfgMgrProtocol,
CM_NULL_TOKEN,
&GicCInfo,
&GicCCount
);
if (EFI_ERROR (Status)) {
DEBUG ((
DEBUG_ERROR,
"ERROR: MADT: Failed to get GICC Info. Status = %r\n",
Status
));
goto error_handler;
}
if (GicCCount == 0) {
DEBUG ((
DEBUG_ERROR,
"ERROR: MADT: GIC CPU Interface information not provided.\n"
));
ASSERT (GicCCount != 0);
Status = EFI_INVALID_PARAMETER;
goto error_handler;
}
Status = GetEArmObjGicDInfo (
CfgMgrProtocol,
CM_NULL_TOKEN,
&GicDInfo,
&GicDCount
);
if (EFI_ERROR (Status)) {
DEBUG ((
DEBUG_ERROR,
"ERROR: MADT: Failed to get GICD Info. Status = %r\n",
Status
));
goto error_handler;
}
if (GicDCount == 0) {
DEBUG ((
DEBUG_ERROR,
"ERROR: MADT: GIC Distributor information not provided.\n"
));
ASSERT (GicDCount != 0);
Status = EFI_INVALID_PARAMETER;
goto error_handler;
}
if (GicDCount > 1) {
DEBUG ((
DEBUG_ERROR,
"ERROR: MADT: One, and only one, GIC distributor must be present."
"GicDCount = %d\n",
GicDCount
));
ASSERT (GicDCount <= 1);
Status = EFI_INVALID_PARAMETER;
goto error_handler;
}
Status = GetEArmObjGicMsiFrameInfo (
CfgMgrProtocol,
CM_NULL_TOKEN,
&GicMSIInfo,
&GicMSICount
);
if (EFI_ERROR (Status) && (Status != EFI_NOT_FOUND)) {
DEBUG ((
DEBUG_ERROR,
"ERROR: MADT: Failed to get GIC MSI Info. Status = %r\n",
Status
));
goto error_handler;
}
Status = GetEArmObjGicRedistributorInfo (
CfgMgrProtocol,
CM_NULL_TOKEN,
&GicRedistInfo,
&GicRedistCount
);
if (EFI_ERROR (Status) && (Status != EFI_NOT_FOUND)) {
DEBUG ((
DEBUG_ERROR,
"ERROR: MADT: Failed to get GIC Redistributor Info. Status = %r\n",
Status
));
goto error_handler;
}
Status = GetEArmObjGicItsInfo (
CfgMgrProtocol,
CM_NULL_TOKEN,
&GicItsInfo,
&GicItsCount
);
if (EFI_ERROR (Status) && (Status != EFI_NOT_FOUND)) {
DEBUG ((
DEBUG_ERROR,
"ERROR: MADT: Failed to get GIC ITS Info. Status = %r\n",
Status
));
goto error_handler;
}
TableSize = sizeof (EFI_ACPI_6_3_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER);
GicCOffset = TableSize;
TableSize += (sizeof (EFI_ACPI_6_3_GIC_STRUCTURE) * GicCCount);
GicDOffset = TableSize;
TableSize += (sizeof (EFI_ACPI_6_3_GIC_DISTRIBUTOR_STRUCTURE) * GicDCount);
GicMSIOffset = TableSize;
TableSize += (sizeof (EFI_ACPI_6_3_GIC_MSI_FRAME_STRUCTURE) * GicMSICount);
GicRedistOffset = TableSize;
TableSize += (sizeof (EFI_ACPI_6_3_GICR_STRUCTURE) * GicRedistCount);
GicItsOffset = TableSize;
TableSize += (sizeof (EFI_ACPI_6_3_GIC_ITS_STRUCTURE) * GicItsCount);
// Allocate the Buffer for MADT table
*Table = (EFI_ACPI_DESCRIPTION_HEADER*)AllocateZeroPool (TableSize);
if (*Table == NULL) {
Status = EFI_OUT_OF_RESOURCES;
DEBUG ((
DEBUG_ERROR,
"ERROR: MADT: Failed to allocate memory for MADT Table, Size = %d," \
" Status = %r\n",
TableSize,
Status
));
goto error_handler;
}
Madt = (EFI_ACPI_6_3_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER*)*Table;
DEBUG ((
DEBUG_INFO,
"MADT: Madt = 0x%p TableSize = 0x%x\n",
Madt,
TableSize
));
Status = AddAcpiHeader (
CfgMgrProtocol,
This,
&Madt->Header,
AcpiTableInfo,
TableSize
);
if (EFI_ERROR (Status)) {
DEBUG ((
DEBUG_ERROR,
"ERROR: MADT: Failed to add ACPI header. Status = %r\n",
Status
));
goto error_handler;
}
Status = AddGICCList (
(EFI_ACPI_6_3_GIC_STRUCTURE*)((UINT8*)Madt + GicCOffset),
GicCInfo,
GicCCount,
Madt->Header.Revision
);
if (EFI_ERROR (Status)) {
DEBUG ((
DEBUG_ERROR,
"ERROR: MADT: Failed to add GICC structures. Status = %r\n",
Status
));
goto error_handler;
}
AddGICD (
(EFI_ACPI_6_3_GIC_DISTRIBUTOR_STRUCTURE*)((UINT8*)Madt + GicDOffset),
GicDInfo
);
if (GicMSICount != 0) {
AddGICMsiFrameInfoList (
(EFI_ACPI_6_3_GIC_MSI_FRAME_STRUCTURE*)((UINT8*)Madt + GicMSIOffset),
GicMSIInfo,
GicMSICount
);
}
if (GicRedistCount != 0) {
AddGICRedistributorList (
(EFI_ACPI_6_3_GICR_STRUCTURE*)((UINT8*)Madt + GicRedistOffset),
GicRedistInfo,
GicRedistCount
);
}
if (GicItsCount != 0) {
AddGICItsList (
(EFI_ACPI_6_3_GIC_ITS_STRUCTURE*)((UINT8*)Madt + GicItsOffset),
GicItsInfo,
GicItsCount
);
}
return EFI_SUCCESS;
error_handler:
if (*Table != NULL) {
FreePool (*Table);
*Table = NULL;
}
return Status;
}
/** Free any resources allocated for constructing the MADT
@param [in] This Pointer to the table generator.
@param [in] AcpiTableInfo Pointer to the ACPI Table Info.
@param [in] CfgMgrProtocol Pointer to the Configuration Manager
Protocol Interface.
@param [in, out] Table Pointer to the ACPI Table.
@retval EFI_SUCCESS The resources were freed successfully.
@retval EFI_INVALID_PARAMETER The table pointer is NULL or invalid.
**/
STATIC
EFI_STATUS
FreeMadtTableResources (
IN CONST ACPI_TABLE_GENERATOR * CONST This,
IN CONST CM_STD_OBJ_ACPI_TABLE_INFO * CONST AcpiTableInfo,
IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST CfgMgrProtocol,
IN OUT EFI_ACPI_DESCRIPTION_HEADER ** CONST Table
)
{
ASSERT (This != NULL);
ASSERT (AcpiTableInfo != NULL);
ASSERT (CfgMgrProtocol != NULL);
ASSERT (AcpiTableInfo->TableGeneratorId == This->GeneratorID);
ASSERT (AcpiTableInfo->AcpiTableSignature == This->AcpiTableSignature);
if ((Table == NULL) || (*Table == NULL)) {
DEBUG ((DEBUG_ERROR, "ERROR: MADT: Invalid Table Pointer\n"));
ASSERT ((Table != NULL) && (*Table != NULL));
return EFI_INVALID_PARAMETER;
}
FreePool (*Table);
*Table = NULL;
return EFI_SUCCESS;
}
/** The MADT Table Generator revision.
*/
#define MADT_GENERATOR_REVISION CREATE_REVISION (1, 0)
/** The interface for the MADT Table Generator.
*/
STATIC
CONST
ACPI_TABLE_GENERATOR MadtGenerator = {
// Generator ID
CREATE_STD_ACPI_TABLE_GEN_ID (EStdAcpiTableIdMadt),
// Generator Description
L"ACPI.STD.MADT.GENERATOR",
// ACPI Table Signature
EFI_ACPI_6_3_MULTIPLE_APIC_DESCRIPTION_TABLE_SIGNATURE,
// ACPI Table Revision supported by this Generator
EFI_ACPI_6_3_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION,
// Minimum supported ACPI Table Revision
EFI_ACPI_6_2_MULTIPLE_APIC_DESCRIPTION_TABLE_REVISION,
// Creator ID
TABLE_GENERATOR_CREATOR_ID_ARM,
// Creator Revision
MADT_GENERATOR_REVISION,
// Build Table function
BuildMadtTable,
// Free Resource function
FreeMadtTableResources,
// Extended build function not needed
NULL,
// Extended build function not implemented by the generator.
// Hence extended free resource function is not required.
NULL
};
/** Register the Generator with the ACPI Table Factory.
@param [in] ImageHandle The handle to the image.
@param [in] SystemTable Pointer to the System Table.
@retval EFI_SUCCESS The Generator is registered.
@retval EFI_INVALID_PARAMETER A parameter is invalid.
@retval EFI_ALREADY_STARTED The Generator for the Table ID
is already registered.
**/
EFI_STATUS
EFIAPI
AcpiMadtLibConstructor (
IN CONST EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE * CONST SystemTable
)
{
EFI_STATUS Status;
Status = RegisterAcpiTableGenerator (&MadtGenerator);
DEBUG ((DEBUG_INFO, "MADT: Register Generator. Status = %r\n", Status));
ASSERT_EFI_ERROR (Status);
return Status;
}
/** Deregister the Generator from the ACPI Table Factory.
@param [in] ImageHandle The handle to the image.
@param [in] SystemTable Pointer to the System Table.
@retval EFI_SUCCESS The Generator is deregistered.
@retval EFI_INVALID_PARAMETER A parameter is invalid.
@retval EFI_NOT_FOUND The Generator is not registered.
**/
EFI_STATUS
EFIAPI
AcpiMadtLibDestructor (
IN CONST EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE * CONST SystemTable
)
{
EFI_STATUS Status;
Status = DeregisterAcpiTableGenerator (&MadtGenerator);
DEBUG ((DEBUG_INFO, "MADT: Deregister Generator. Status = %r\n", Status));
ASSERT_EFI_ERROR (Status);
return Status;
}
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