mirror of https://github.com/acidanthera/audk.git
1917 lines
63 KiB
C
1917 lines
63 KiB
C
/** @file
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ACPI Support Protocol implementation
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Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions
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of the BSD License which accompanies this distribution. The
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full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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//
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// Includes
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//
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#include "AcpiSupport.h"
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//
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// The maximum number of tables that pre-allocated.
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//
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UINTN mEfiAcpiMaxNumTables = EFI_ACPI_MAX_NUM_TABLES;
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/**
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This function adds an ACPI table to the table list. It will detect FACS and
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allocate the correct type of memory and properly align the table.
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@param AcpiSupportInstance Instance of the protocol.
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@param Table Table to add.
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@param Checksum Does the table require checksumming.
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@param Version The version of the list to add the table to.
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@param Handle Pointer for returning the handle.
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@return EFI_SUCCESS The function completed successfully.
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@return EFI_OUT_OF_RESOURCES Could not allocate a required resource.
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@return EFI_ABORTED The table is a duplicate of a table that is required
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to be unique.
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**/
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EFI_STATUS
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AddTableToList (
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IN EFI_ACPI_SUPPORT_INSTANCE *AcpiSupportInstance,
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IN VOID *Table,
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IN BOOLEAN Checksum,
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IN EFI_ACPI_TABLE_VERSION Version,
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OUT UINTN *Handle
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);
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/**
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This function finds and removes the table specified by the handle.
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@param AcpiSupportInstance Instance of the protocol.
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@param Version Bitmask of which versions to remove.
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@param Handle Table to remove.
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@return EFI_SUCCESS The function completed successfully.
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@return EFI_ABORTED An error occurred.
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@return EFI_NOT_FOUND Handle not found in table list.
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**/
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EFI_STATUS
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RemoveTableFromList (
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IN EFI_ACPI_SUPPORT_INSTANCE *AcpiSupportInstance,
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IN EFI_ACPI_TABLE_VERSION Version,
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IN UINTN Handle
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);
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/**
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This function calculates and updates an UINT8 checksum.
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@param Buffer Pointer to buffer to checksum
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@param Size Number of bytes to checksum
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@param ChecksumOffset Offset to place the checksum result in
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@return EFI_SUCCESS The function completed successfully.
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**/
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EFI_STATUS
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AcpiPlatformChecksum (
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IN VOID *Buffer,
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IN UINTN Size,
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IN UINTN ChecksumOffset
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);
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/**
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Checksum all versions of the common tables, RSDP, RSDT, XSDT.
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@param AcpiSupportInstance Protocol instance private data.
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@return EFI_SUCCESS The function completed successfully.
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**/
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EFI_STATUS
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ChecksumCommonTables (
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IN OUT EFI_ACPI_SUPPORT_INSTANCE *AcpiSupportInstance
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);
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/**
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This function returns a table specified by an index if it exists.
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The function returns a buffer containing the table that the caller must free.
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The function also returns a handle used to identify the table for update or
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deletion using the SetAcpiTable function.
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@param This Instance of the protocol.
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@param Index Zero-based index of the table to retrieve.
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@param Table Returned pointer to the table.
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@param Version Versions that the table is currently used in.
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@param Handle Handle of the table, used in updating tables.
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_NOT_FOUND The requested table does not exist.
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**/
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EFI_STATUS
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EFIAPI
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GetAcpiTable (
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IN EFI_ACPI_SUPPORT_PROTOCOL *This,
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IN INTN Index,
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OUT VOID **Table,
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OUT EFI_ACPI_TABLE_VERSION *Version,
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OUT UINTN *Handle
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)
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{
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EFI_ACPI_SUPPORT_INSTANCE *AcpiSupportInstance;
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INTN TempIndex;
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LIST_ENTRY *CurrentLink;
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LIST_ENTRY *StartLink;
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EFI_ACPI_TABLE_LIST *CurrentTable;
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//
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// Check for invalid input parameters
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//
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ASSERT (This);
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ASSERT (Table);
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ASSERT (Handle);
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//
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// Get the instance of the protocol
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//
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AcpiSupportInstance = EFI_ACPI_SUPPORT_INSTANCE_FROM_ACPI_SUPPORT_THIS (This);
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//
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// Find the table
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//
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CurrentLink = AcpiSupportInstance->TableList.ForwardLink;
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StartLink = &AcpiSupportInstance->TableList;
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for (TempIndex = 0; (TempIndex < Index) && (CurrentLink != StartLink) && (CurrentLink != NULL); TempIndex++) {
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CurrentLink = CurrentLink->ForwardLink;
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}
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if (TempIndex != Index || CurrentLink == StartLink) {
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return EFI_NOT_FOUND;
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}
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//
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// Get handle and version
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//
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CurrentTable = EFI_ACPI_TABLE_LIST_FROM_LINK (CurrentLink);
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*Handle = CurrentTable->Handle;
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*Version = CurrentTable->Version;
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//
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// Copy the table
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//
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*Table = AllocateCopyPool (CurrentTable->Table->Length, CurrentTable->Table);
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ASSERT (*Table);
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return EFI_SUCCESS;
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}
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/**
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This function adds, removes, or updates ACPI tables. If the address is not
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null and the handle value is null, the table is added. If both the address and
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handle are not null, the table at handle is updated with the table at address.
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If the address is null and the handle is not, the table at handle is deleted.
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@param This Pointer of the protocol.
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@param Table Pointer to a table.
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@param Checksum Boolean indicating if the checksum should be calculated.
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@param Version Version(s) to set.
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@param Handle Handle of the table.
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@return EFI_SUCCESS The function completed successfully.
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@return EFI_INVALID_PARAMETER Both the Table and *Handle were NULL.
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@return EFI_ABORTED Could not complete the desired request.
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**/
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EFI_STATUS
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EFIAPI
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SetAcpiTable (
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IN EFI_ACPI_SUPPORT_PROTOCOL *This,
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IN VOID *Table OPTIONAL,
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IN BOOLEAN Checksum,
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IN EFI_ACPI_TABLE_VERSION Version,
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IN OUT UINTN *Handle
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)
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{
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EFI_ACPI_SUPPORT_INSTANCE *AcpiSupportInstance;
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UINTN SavedHandle;
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EFI_STATUS Status;
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//
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// Check for invalid input parameters
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//
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ASSERT (This);
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ASSERT (Handle != NULL);
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//
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// Get the instance of the protocol
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//
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AcpiSupportInstance = EFI_ACPI_SUPPORT_INSTANCE_FROM_ACPI_SUPPORT_THIS (This);
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//
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// Initialize locals
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//
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//
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// Determine desired action
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//
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if (*Handle == 0) {
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if (Table == NULL) {
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//
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// Invalid parameter combination
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//
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return EFI_INVALID_PARAMETER;
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} else {
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//
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// Add table
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//
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Status = AddTableToList (AcpiSupportInstance, Table, Checksum, Version, Handle);
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}
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} else {
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if (Table != NULL) {
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//
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// Update table
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//
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//
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// Delete the table list entry
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//
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Status = RemoveTableFromList (AcpiSupportInstance, Version, *Handle);
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if (EFI_ERROR (Status)) {
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//
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// Should not get an error here ever, but abort if we do.
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//
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return EFI_ABORTED;
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}
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//
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// Set the handle to replace the table at the same handle
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//
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SavedHandle = AcpiSupportInstance->CurrentHandle;
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AcpiSupportInstance->CurrentHandle = *Handle;
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//
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// Add the table
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//
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Status = AddTableToList (AcpiSupportInstance, Table, Checksum, Version, Handle);
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//
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// Restore the saved current handle
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//
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AcpiSupportInstance->CurrentHandle = SavedHandle;
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} else {
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//
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// Delete table
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//
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Status = RemoveTableFromList (AcpiSupportInstance, Version, *Handle);
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}
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}
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if (EFI_ERROR (Status)) {
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//
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// Should not get an error here ever, but abort if we do.
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//
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return EFI_ABORTED;
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}
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//
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// Done
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//
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return EFI_SUCCESS;
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}
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/**
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This function publishes the specified versions of the ACPI tables by
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installing EFI configuration table entries for them. Any combination of
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table versions can be published.
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@param This Pointer of the protocol.
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@param Version Version(s) to publish.
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@return EFI_SUCCESS The function completed successfully.
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@return EFI_ABORTED The function could not complete successfully.
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**/
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EFI_STATUS
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EFIAPI
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PublishTables (
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IN EFI_ACPI_SUPPORT_PROTOCOL *This,
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IN EFI_ACPI_TABLE_VERSION Version
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)
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{
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EFI_ACPI_SUPPORT_INSTANCE *AcpiSupportInstance;
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EFI_STATUS Status;
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UINT32 *CurrentRsdtEntry;
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VOID *CurrentXsdtEntry;
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UINT64 Buffer64;
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//
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// Get the instance of the protocol
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//
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AcpiSupportInstance = EFI_ACPI_SUPPORT_INSTANCE_FROM_ACPI_SUPPORT_THIS (This);
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//
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// Reorder tables as some operating systems don't seem to find the
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// FADT correctly if it is not in the first few entries
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//
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//
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// Add FADT as the first entry
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//
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if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
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CurrentRsdtEntry = (UINT32 *) ((UINT8 *) AcpiSupportInstance->Rsdt1 + sizeof (EFI_ACPI_DESCRIPTION_HEADER));
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*CurrentRsdtEntry = (UINT32) (UINTN) AcpiSupportInstance->Fadt1;
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}
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if ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 || (Version & EFI_ACPI_TABLE_VERSION_3_0) != 0) {
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CurrentRsdtEntry = (UINT32 *) ((UINT8 *) AcpiSupportInstance->Rsdt3 + sizeof (EFI_ACPI_DESCRIPTION_HEADER));
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*CurrentRsdtEntry = (UINT32) (UINTN) AcpiSupportInstance->Fadt3;
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CurrentXsdtEntry = (VOID *) ((UINT8 *) AcpiSupportInstance->Xsdt + sizeof (EFI_ACPI_DESCRIPTION_HEADER));
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//
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// Add entry to XSDT, XSDT expects 64 bit pointers, but
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// the table pointers in XSDT are not aligned on 8 byte boundary.
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//
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Buffer64 = (UINT64) (UINTN) AcpiSupportInstance->Fadt3;
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CopyMem (
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CurrentXsdtEntry,
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&Buffer64,
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sizeof (UINT64)
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);
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}
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//
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// Do checksum again because Dsdt/Xsdt is updated.
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//
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ChecksumCommonTables (AcpiSupportInstance);
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//
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// Add the RSD_PTR to the system table and store that we have installed the
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// tables.
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//
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if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0 && !AcpiSupportInstance->TablesInstalled1) {
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Status = gBS->InstallConfigurationTable (&gEfiAcpi10TableGuid, AcpiSupportInstance->Rsdp1);
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if (EFI_ERROR (Status)) {
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return EFI_ABORTED;
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}
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AcpiSupportInstance->TablesInstalled1 = TRUE;
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}
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if (((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 || (Version & EFI_ACPI_TABLE_VERSION_3_0) != 0) &&
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!AcpiSupportInstance->TablesInstalled3) {
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Status = gBS->InstallConfigurationTable (&gEfiAcpiTableGuid, AcpiSupportInstance->Rsdp3);
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if (EFI_ERROR (Status)) {
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return EFI_ABORTED;
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}
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AcpiSupportInstance->TablesInstalled3= TRUE;
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}
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return EFI_SUCCESS;
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}
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/**
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Installs an ACPI table into the RSDT/XSDT.
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Note that the ACPI table should be checksumed before installing it.
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Otherwise it will assert.
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@param This Protocol instance pointer.
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@param AcpiTableBuffer A pointer to a buffer containing the ACPI table to be installed.
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@param AcpiTableBufferSize Specifies the size, in bytes, of the AcpiTableBuffer buffer.
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@param TableKey Reurns a key to refer to the ACPI table.
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@return EFI_SUCCESS The table was successfully inserted.
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@return EFI_INVALID_PARAMETER Either AcpiTableBuffer is NULL, TableKey is NULL, or AcpiTableBufferSize
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and the size field embedded in the ACPI table pointed to by AcpiTableBuffer
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are not in sync.
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@return EFI_OUT_OF_RESOURCES Insufficient resources exist to complete the request.
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**/
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EFI_STATUS
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EFIAPI
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InstallAcpiTable (
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IN EFI_ACPI_TABLE_PROTOCOL *This,
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IN VOID *AcpiTableBuffer,
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IN UINTN AcpiTableBufferSize,
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OUT UINTN *TableKey
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)
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{
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EFI_ACPI_SUPPORT_INSTANCE *AcpiSupportInstance;
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EFI_ACPI_SUPPORT_PROTOCOL *AcpiSupport;
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EFI_STATUS Status;
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VOID *AcpiTableBufferConst;
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//
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// Check for invalid input parameters
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//
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if ((AcpiTableBuffer == NULL) || (TableKey == NULL)
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|| (((EFI_ACPI_DESCRIPTION_HEADER *) AcpiTableBuffer)->Length != AcpiTableBufferSize)) {
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return EFI_INVALID_PARAMETER;
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}
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//
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// Get the instance of the ACPI support protocol
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//
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AcpiSupportInstance = EFI_ACPI_TABLE_INSTANCE_FROM_ACPI_SUPPORT_THIS (This);
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AcpiSupport = &AcpiSupportInstance->AcpiSupport;
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//
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// Install the ACPI table by using ACPI support protocol
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//
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AcpiTableBufferConst = AllocateCopyPool (AcpiTableBufferSize, AcpiTableBuffer);
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*TableKey = 0;
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Status = AcpiSupport->SetAcpiTable (
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AcpiSupport,
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AcpiTableBufferConst,
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TRUE,
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EFI_ACPI_TABLE_VERSION_1_0B | EFI_ACPI_TABLE_VERSION_2_0 | EFI_ACPI_TABLE_VERSION_3_0,
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TableKey
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);
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if (!EFI_ERROR (Status)) {
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Status = AcpiSupport->PublishTables (
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AcpiSupport,
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EFI_ACPI_TABLE_VERSION_1_0B | EFI_ACPI_TABLE_VERSION_2_0 | EFI_ACPI_TABLE_VERSION_3_0
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);
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}
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FreePool (AcpiTableBufferConst);
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return Status;
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}
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/**
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Removes an ACPI table from the RSDT/XSDT.
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@param This Protocol instance pointer.
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@param TableKey Specifies the table to uninstall. The key was returned from InstallAcpiTable().
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@return EFI_SUCCESS The table was successfully uninstalled.
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@return EFI_NOT_FOUND TableKey does not refer to a valid key for a table entry.
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**/
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EFI_STATUS
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EFIAPI
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UninstallAcpiTable (
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IN EFI_ACPI_TABLE_PROTOCOL *This,
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IN UINTN TableKey
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)
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{
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EFI_ACPI_SUPPORT_INSTANCE *AcpiSupportInstance;
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EFI_ACPI_SUPPORT_PROTOCOL *AcpiSupport;
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EFI_STATUS Status;
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//
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// Get the instance of the ACPI support protocol
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//
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AcpiSupportInstance = EFI_ACPI_TABLE_INSTANCE_FROM_ACPI_SUPPORT_THIS (This);
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AcpiSupport = &AcpiSupportInstance->AcpiSupport;
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//
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// Uninstall the ACPI table by using ACPI support protocol
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//
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Status = AcpiSupport->SetAcpiTable (
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AcpiSupport,
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NULL,
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FALSE,
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EFI_ACPI_TABLE_VERSION_1_0B | EFI_ACPI_TABLE_VERSION_2_0 | EFI_ACPI_TABLE_VERSION_3_0,
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&TableKey
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);
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if (!EFI_ERROR (Status)) {
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Status = AcpiSupport->PublishTables (
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AcpiSupport,
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EFI_ACPI_TABLE_VERSION_1_0B | EFI_ACPI_TABLE_VERSION_2_0 | EFI_ACPI_TABLE_VERSION_3_0
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);
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}
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if (EFI_ERROR (Status)) {
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return EFI_NOT_FOUND;
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} else {
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return EFI_SUCCESS;
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}
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}
|
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/**
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If the number of APCI tables exceeds the preallocated max table number, enlarge the table buffer.
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@param AcpiSupportInstance ACPI support protocol instance data structure
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@return EFI_SUCCESS reallocate the table beffer successfully.
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@return EFI_OUT_OF_RESOURCES Unable to allocate required resources.
|
|
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**/
|
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EFI_STATUS
|
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ReallocateAcpiTableBuffer (
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IN EFI_ACPI_SUPPORT_INSTANCE *AcpiSupportInstance
|
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)
|
|
{
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UINTN NewMaxTableNumber;
|
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UINTN TotalSize;
|
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UINT8 *Pointer;
|
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EFI_PHYSICAL_ADDRESS PageAddress;
|
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EFI_ACPI_SUPPORT_INSTANCE TempPrivateData;
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EFI_STATUS Status;
|
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UINT64 CurrentData;
|
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|
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CopyMem (&TempPrivateData, AcpiSupportInstance, sizeof (EFI_ACPI_SUPPORT_INSTANCE));
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//
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// Enlarge the max table number from mEfiAcpiMaxNumTables to mEfiAcpiMaxNumTables + EFI_ACPI_MAX_NUM_TABLES
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//
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NewMaxTableNumber = mEfiAcpiMaxNumTables + EFI_ACPI_MAX_NUM_TABLES;
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//
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// Create RSDT, XSDT structures and allocate buffers.
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//
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TotalSize = sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 1.0 RSDT
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NewMaxTableNumber * sizeof (UINT32) +
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sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 RSDT
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NewMaxTableNumber * sizeof (UINT32) +
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sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 XSDT
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NewMaxTableNumber * sizeof (UINT64);
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|
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//
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// Allocate memory in the lower 32 bit of address range for
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// compatibility with ACPI 1.0 OS.
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//
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|
// This is done because ACPI 1.0 pointers are 32 bit values.
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|
// ACPI 2.0 OS and all 64 bit OS must use the 64 bit ACPI table addresses.
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// There is no architectural reason these should be below 4GB, it is purely
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// for convenience of implementation that we force memory below 4GB.
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//
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PageAddress = 0xFFFFFFFF;
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Status = gBS->AllocatePages (
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AllocateMaxAddress,
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EfiACPIReclaimMemory,
|
|
EFI_SIZE_TO_PAGES (TotalSize),
|
|
&PageAddress
|
|
);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
Pointer = (UINT8 *) (UINTN) PageAddress;
|
|
ZeroMem (Pointer, TotalSize);
|
|
|
|
AcpiSupportInstance->Rsdt1 = (EFI_ACPI_DESCRIPTION_HEADER *) Pointer;
|
|
Pointer += (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + NewMaxTableNumber * sizeof (UINT32));
|
|
AcpiSupportInstance->Rsdt3 = (EFI_ACPI_DESCRIPTION_HEADER *) Pointer;
|
|
Pointer += (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + NewMaxTableNumber * sizeof (UINT32));
|
|
AcpiSupportInstance->Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *) Pointer;
|
|
|
|
//
|
|
// Update RSDP to point to the new Rsdt and Xsdt address.
|
|
//
|
|
AcpiSupportInstance->Rsdp1->RsdtAddress = (UINT32) (UINTN) AcpiSupportInstance->Rsdt1;
|
|
AcpiSupportInstance->Rsdp3->RsdtAddress = (UINT32) (UINTN) AcpiSupportInstance->Rsdt3;
|
|
CurrentData = (UINT64) (UINTN) AcpiSupportInstance->Xsdt;
|
|
CopyMem (&AcpiSupportInstance->Rsdp3->XsdtAddress, &CurrentData, sizeof (UINT64));
|
|
|
|
//
|
|
// copy the original Rsdt1, Rsdt3 and Xsdt structure to new buffer
|
|
//
|
|
CopyMem (AcpiSupportInstance->Rsdt1, TempPrivateData.Rsdt1, (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + mEfiAcpiMaxNumTables * sizeof (UINT32)));
|
|
CopyMem (AcpiSupportInstance->Rsdt3, TempPrivateData.Rsdt3, (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + mEfiAcpiMaxNumTables * sizeof (UINT32)));
|
|
CopyMem (AcpiSupportInstance->Xsdt, TempPrivateData.Xsdt, (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + mEfiAcpiMaxNumTables * sizeof (UINT64)));
|
|
|
|
//
|
|
// Calculate orignal ACPI table buffer size
|
|
//
|
|
TotalSize = sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 1.0 RSDT
|
|
mEfiAcpiMaxNumTables * sizeof (UINT32) +
|
|
sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 RSDT
|
|
mEfiAcpiMaxNumTables * sizeof (UINT32) +
|
|
sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 XSDT
|
|
mEfiAcpiMaxNumTables * sizeof (UINT64);
|
|
gBS->FreePages ((EFI_PHYSICAL_ADDRESS)(UINTN)TempPrivateData.Rsdt1, EFI_SIZE_TO_PAGES (TotalSize));
|
|
|
|
//
|
|
// Update the Max ACPI table number
|
|
//
|
|
mEfiAcpiMaxNumTables = NewMaxTableNumber;
|
|
return EFI_SUCCESS;
|
|
}
|
|
/**
|
|
This function adds an ACPI table to the table list. It will detect FACS and
|
|
allocate the correct type of memory and properly align the table.
|
|
|
|
@param AcpiSupportInstance Instance of the protocol.
|
|
@param Table Table to add.
|
|
@param Checksum Does the table require checksumming.
|
|
@param Version The version of the list to add the table to.
|
|
@param Handle Pointer for returning the handle.
|
|
|
|
@return EFI_SUCCESS The function completed successfully.
|
|
@return EFI_OUT_OF_RESOURCES Could not allocate a required resource.
|
|
@return EFI_ABORTED The table is a duplicate of a table that is required
|
|
to be unique.
|
|
**/
|
|
EFI_STATUS
|
|
AddTableToList (
|
|
IN EFI_ACPI_SUPPORT_INSTANCE *AcpiSupportInstance,
|
|
IN VOID *Table,
|
|
IN BOOLEAN Checksum,
|
|
IN EFI_ACPI_TABLE_VERSION Version,
|
|
OUT UINTN *Handle
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
EFI_ACPI_TABLE_LIST *CurrentTableList;
|
|
UINT32 CurrentTableSignature;
|
|
UINT32 CurrentTableSize;
|
|
UINT32 *CurrentRsdtEntry;
|
|
VOID *CurrentXsdtEntry;
|
|
UINT64 Buffer64;
|
|
BOOLEAN AddToRsdt;
|
|
|
|
//
|
|
// Check for invalid input parameters
|
|
//
|
|
ASSERT (AcpiSupportInstance);
|
|
ASSERT (Table);
|
|
ASSERT (Handle);
|
|
|
|
//
|
|
// Init locals
|
|
//
|
|
AddToRsdt = TRUE;
|
|
|
|
//
|
|
// Create a new list entry
|
|
//
|
|
CurrentTableList = AllocatePool (sizeof (EFI_ACPI_TABLE_LIST));
|
|
ASSERT (CurrentTableList);
|
|
|
|
//
|
|
// Determine table type and size
|
|
//
|
|
CurrentTableSignature = ((EFI_ACPI_COMMON_HEADER *) Table)->Signature;
|
|
CurrentTableSize = ((EFI_ACPI_COMMON_HEADER *) Table)->Length;
|
|
|
|
//
|
|
// Allocate a buffer for the table. All tables are allocated in the lower 32 bits of address space
|
|
// for backwards compatibility with ACPI 1.0 OS.
|
|
//
|
|
// This is done because ACPI 1.0 pointers are 32 bit values.
|
|
// ACPI 2.0 OS and all 64 bit OS must use the 64 bit ACPI table addresses.
|
|
// There is no architectural reason these should be below 4GB, it is purely
|
|
// for convenience of implementation that we force memory below 4GB.
|
|
//
|
|
CurrentTableList->PageAddress = 0xFFFFFFFF;
|
|
CurrentTableList->NumberOfPages = EFI_SIZE_TO_PAGES (CurrentTableSize);
|
|
|
|
//
|
|
// Allocation memory type depends on the type of the table
|
|
//
|
|
if ((CurrentTableSignature == EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE) ||
|
|
(CurrentTableSignature == EFI_ACPI_4_0_UEFI_ACPI_DATA_TABLE_SIGNATURE)) {
|
|
//
|
|
// Allocate memory for the FACS. This structure must be aligned
|
|
// on a 64 byte boundary and must be ACPI NVS memory.
|
|
// Using AllocatePages should ensure that it is always aligned.
|
|
// Do not change signature for new ACPI version because they are same.
|
|
//
|
|
// UEFI table also need to be in ACPI NVS memory, because some data field
|
|
// could be updated by OS present agent. For example, BufferPtrAddress in
|
|
// SMM communication ACPI table.
|
|
//
|
|
ASSERT ((EFI_PAGE_SIZE % 64) == 0);
|
|
Status = gBS->AllocatePages (
|
|
AllocateMaxAddress,
|
|
EfiACPIMemoryNVS,
|
|
CurrentTableList->NumberOfPages,
|
|
&CurrentTableList->PageAddress
|
|
);
|
|
} else {
|
|
//
|
|
// All other tables are ACPI reclaim memory, no alignment requirements.
|
|
//
|
|
Status = gBS->AllocatePages (
|
|
AllocateMaxAddress,
|
|
EfiACPIReclaimMemory,
|
|
CurrentTableList->NumberOfPages,
|
|
&CurrentTableList->PageAddress
|
|
);
|
|
}
|
|
//
|
|
// Check return value from memory alloc.
|
|
//
|
|
if (EFI_ERROR (Status)) {
|
|
gBS->FreePool (CurrentTableList);
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
//
|
|
// Update the table pointer with the allocated memory start
|
|
//
|
|
CurrentTableList->Table = (EFI_ACPI_COMMON_HEADER *) (UINTN) CurrentTableList->PageAddress;
|
|
|
|
//
|
|
// Initialize the table contents
|
|
//
|
|
CurrentTableList->Signature = EFI_ACPI_TABLE_LIST_SIGNATURE;
|
|
CopyMem (CurrentTableList->Table, Table, CurrentTableSize);
|
|
CurrentTableList->Handle = AcpiSupportInstance->CurrentHandle++;
|
|
*Handle = CurrentTableList->Handle;
|
|
CurrentTableList->Version = Version;
|
|
|
|
//
|
|
// Update internal pointers if this is a required table. If it is a required
|
|
// table and a table of that type already exists, return an error.
|
|
//
|
|
// Calculate the checksum if the table is not FACS.
|
|
//
|
|
switch (CurrentTableSignature) {
|
|
|
|
case EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE:
|
|
//
|
|
// We don't add the FADT in the standard way because some
|
|
// OS expect the FADT to be early in the table list.
|
|
// So we always add it as the first element in the list.
|
|
//
|
|
AddToRsdt = FALSE;
|
|
|
|
//
|
|
// Check that the table has not been previously added.
|
|
//
|
|
if (((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0 && AcpiSupportInstance->Fadt1 != NULL) ||
|
|
((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 && AcpiSupportInstance->Fadt3 != NULL) ||
|
|
((Version & EFI_ACPI_TABLE_VERSION_3_0) != 0 && AcpiSupportInstance->Fadt3 != NULL)
|
|
) {
|
|
gBS->FreePages (CurrentTableList->PageAddress, CurrentTableList->NumberOfPages);
|
|
gBS->FreePool (CurrentTableList);
|
|
return EFI_ABORTED;
|
|
}
|
|
//
|
|
// Add the table to the appropriate table version
|
|
//
|
|
if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
|
|
//
|
|
// Save a pointer to the table
|
|
//
|
|
AcpiSupportInstance->Fadt1 = (EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE *) CurrentTableList->Table;
|
|
|
|
//
|
|
// Update pointers in FADT. If tables don't exist this will put NULL pointers there.
|
|
//
|
|
AcpiSupportInstance->Fadt1->FirmwareCtrl = (UINT32) (UINTN) AcpiSupportInstance->Facs1;
|
|
AcpiSupportInstance->Fadt1->Dsdt = (UINT32) (UINTN) AcpiSupportInstance->Dsdt1;
|
|
|
|
//
|
|
// RSDP OEM information is updated to match the FADT OEM information
|
|
//
|
|
CopyMem (
|
|
&AcpiSupportInstance->Rsdp1->OemId,
|
|
&AcpiSupportInstance->Fadt1->Header.OemId,
|
|
6
|
|
);
|
|
|
|
//
|
|
// RSDT OEM information is updated to match the FADT OEM information.
|
|
//
|
|
CopyMem (
|
|
&AcpiSupportInstance->Rsdt1->OemId,
|
|
&AcpiSupportInstance->Fadt1->Header.OemId,
|
|
6
|
|
);
|
|
|
|
CopyMem (
|
|
&AcpiSupportInstance->Rsdt1->OemTableId,
|
|
&AcpiSupportInstance->Fadt1->Header.OemTableId,
|
|
sizeof (UINT64)
|
|
);
|
|
AcpiSupportInstance->Rsdt1->OemRevision = AcpiSupportInstance->Fadt1->Header.OemRevision;
|
|
}
|
|
|
|
if ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 ||
|
|
(Version & EFI_ACPI_TABLE_VERSION_3_0) != 0) {
|
|
//
|
|
// Save a pointer to the table
|
|
//
|
|
AcpiSupportInstance->Fadt3 = (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *) CurrentTableList->Table;
|
|
|
|
//
|
|
// Update pointers in FADT. If tables don't exist this will put NULL pointers there.
|
|
// Note: If the FIRMWARE_CTRL is non-zero, then X_FIRMWARE_CTRL must be zero, and
|
|
// vice-versa.
|
|
//
|
|
if ((UINT64)(UINTN)AcpiSupportInstance->Facs3 < BASE_4GB) {
|
|
AcpiSupportInstance->Fadt3->FirmwareCtrl = (UINT32) (UINTN) AcpiSupportInstance->Facs3;
|
|
ZeroMem (
|
|
&AcpiSupportInstance->Fadt3->XFirmwareCtrl,
|
|
sizeof (UINT64)
|
|
);
|
|
} else {
|
|
AcpiSupportInstance->Fadt3->FirmwareCtrl = 0;
|
|
Buffer64 = (UINT64) (UINTN) AcpiSupportInstance->Facs3;
|
|
CopyMem (
|
|
&AcpiSupportInstance->Fadt3->XFirmwareCtrl,
|
|
&Buffer64,
|
|
sizeof (UINT64)
|
|
);
|
|
}
|
|
AcpiSupportInstance->Fadt3->Dsdt = (UINT32) (UINTN) AcpiSupportInstance->Dsdt3;
|
|
Buffer64 = (UINT64) (UINTN) AcpiSupportInstance->Dsdt3;
|
|
CopyMem (
|
|
&AcpiSupportInstance->Fadt3->XDsdt,
|
|
&Buffer64,
|
|
sizeof (UINT64)
|
|
);
|
|
|
|
//
|
|
// RSDP OEM information is updated to match the FADT OEM information
|
|
//
|
|
CopyMem (
|
|
&AcpiSupportInstance->Rsdp3->OemId,
|
|
&AcpiSupportInstance->Fadt3->Header.OemId,
|
|
6
|
|
);
|
|
|
|
//
|
|
// RSDT OEM information is updated to match FADT OEM information.
|
|
//
|
|
CopyMem (
|
|
&AcpiSupportInstance->Rsdt3->OemId,
|
|
&AcpiSupportInstance->Fadt3->Header.OemId,
|
|
6
|
|
);
|
|
CopyMem (
|
|
&AcpiSupportInstance->Rsdt3->OemTableId,
|
|
&AcpiSupportInstance->Fadt3->Header.OemTableId,
|
|
sizeof (UINT64)
|
|
);
|
|
AcpiSupportInstance->Rsdt3->OemRevision = AcpiSupportInstance->Fadt3->Header.OemRevision;
|
|
|
|
//
|
|
// XSDT OEM information is updated to match FADT OEM information.
|
|
//
|
|
CopyMem (
|
|
&AcpiSupportInstance->Xsdt->OemId,
|
|
&AcpiSupportInstance->Fadt3->Header.OemId,
|
|
6
|
|
);
|
|
CopyMem (
|
|
&AcpiSupportInstance->Xsdt->OemTableId,
|
|
&AcpiSupportInstance->Fadt3->Header.OemTableId,
|
|
sizeof (UINT64)
|
|
);
|
|
AcpiSupportInstance->Xsdt->OemRevision = AcpiSupportInstance->Fadt3->Header.OemRevision;
|
|
}
|
|
|
|
//
|
|
// Checksum the table
|
|
//
|
|
if (Checksum) {
|
|
AcpiPlatformChecksum (
|
|
CurrentTableList->Table,
|
|
CurrentTableList->Table->Length,
|
|
OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
|
|
Checksum)
|
|
);
|
|
}
|
|
break;
|
|
|
|
case EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE:
|
|
//
|
|
// Check that the table has not been previously added.
|
|
//
|
|
if (((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0 && AcpiSupportInstance->Facs1 != NULL) ||
|
|
((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 && AcpiSupportInstance->Facs3 != NULL) ||
|
|
((Version & EFI_ACPI_TABLE_VERSION_3_0) != 0 && AcpiSupportInstance->Facs3 != NULL)
|
|
) {
|
|
gBS->FreePages (CurrentTableList->PageAddress, CurrentTableList->NumberOfPages);
|
|
gBS->FreePool (CurrentTableList);
|
|
return EFI_ABORTED;
|
|
}
|
|
//
|
|
// FACS is referenced by FADT and is not part of RSDT
|
|
//
|
|
AddToRsdt = FALSE;
|
|
|
|
//
|
|
// Add the table to the appropriate table version
|
|
//
|
|
if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
|
|
//
|
|
// Save a pointer to the table
|
|
//
|
|
AcpiSupportInstance->Facs1 = (EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *) CurrentTableList->Table;
|
|
|
|
//
|
|
// If FADT already exists, update table pointers.
|
|
//
|
|
if (AcpiSupportInstance->Fadt1 != NULL) {
|
|
AcpiSupportInstance->Fadt1->FirmwareCtrl = (UINT32) (UINTN) AcpiSupportInstance->Facs1;
|
|
|
|
//
|
|
// Checksum FADT table
|
|
//
|
|
AcpiPlatformChecksum (
|
|
AcpiSupportInstance->Fadt1,
|
|
AcpiSupportInstance->Fadt1->Header.Length,
|
|
OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
|
|
Checksum)
|
|
);
|
|
}
|
|
}
|
|
|
|
if ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 ||
|
|
(Version & EFI_ACPI_TABLE_VERSION_3_0) != 0) {
|
|
//
|
|
// Save a pointer to the table
|
|
//
|
|
AcpiSupportInstance->Facs3 = (EFI_ACPI_3_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *) CurrentTableList->Table;
|
|
|
|
//
|
|
// If FADT already exists, update table pointers.
|
|
//
|
|
if (AcpiSupportInstance->Fadt3 != NULL) {
|
|
//
|
|
// Note: If the FIRMWARE_CTRL is non-zero, then X_FIRMWARE_CTRL must be zero, and
|
|
// vice-versa.
|
|
//
|
|
if ((UINT64)(UINTN)AcpiSupportInstance->Facs3 < BASE_4GB) {
|
|
AcpiSupportInstance->Fadt3->FirmwareCtrl = (UINT32) (UINTN) AcpiSupportInstance->Facs3;
|
|
} else {
|
|
Buffer64 = (UINT64) (UINTN) AcpiSupportInstance->Facs3;
|
|
CopyMem (
|
|
&AcpiSupportInstance->Fadt3->XFirmwareCtrl,
|
|
&Buffer64,
|
|
sizeof (UINT64)
|
|
);
|
|
}
|
|
|
|
//
|
|
// Checksum FADT table
|
|
//
|
|
AcpiPlatformChecksum (
|
|
AcpiSupportInstance->Fadt3,
|
|
AcpiSupportInstance->Fadt3->Header.Length,
|
|
OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
|
|
Checksum)
|
|
);
|
|
}
|
|
}
|
|
|
|
break;
|
|
|
|
case EFI_ACPI_1_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE:
|
|
//
|
|
// Check that the table has not been previously added.
|
|
//
|
|
if (((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0 && AcpiSupportInstance->Dsdt1 != NULL) ||
|
|
((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 && AcpiSupportInstance->Dsdt3 != NULL) ||
|
|
((Version & EFI_ACPI_TABLE_VERSION_3_0) != 0 && AcpiSupportInstance->Dsdt3 != NULL)
|
|
) {
|
|
gBS->FreePages (CurrentTableList->PageAddress, CurrentTableList->NumberOfPages);
|
|
gBS->FreePool (CurrentTableList);
|
|
return EFI_ABORTED;
|
|
}
|
|
//
|
|
// DSDT is referenced by FADT and is not part of RSDT
|
|
//
|
|
AddToRsdt = FALSE;
|
|
|
|
//
|
|
// Add the table to the appropriate table version
|
|
//
|
|
if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
|
|
//
|
|
// Save a pointer to the table
|
|
//
|
|
AcpiSupportInstance->Dsdt1 = (EFI_ACPI_DESCRIPTION_HEADER *) CurrentTableList->Table;
|
|
|
|
//
|
|
// If FADT already exists, update table pointers.
|
|
//
|
|
if (AcpiSupportInstance->Fadt1 != NULL) {
|
|
AcpiSupportInstance->Fadt1->Dsdt = (UINT32) (UINTN) AcpiSupportInstance->Dsdt1;
|
|
|
|
//
|
|
// Checksum FADT table
|
|
//
|
|
AcpiPlatformChecksum (
|
|
AcpiSupportInstance->Fadt1,
|
|
AcpiSupportInstance->Fadt1->Header.Length,
|
|
OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
|
|
Checksum)
|
|
);
|
|
}
|
|
}
|
|
|
|
if ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 ||
|
|
(Version & EFI_ACPI_TABLE_VERSION_3_0) != 0) {
|
|
//
|
|
// Save a pointer to the table
|
|
//
|
|
AcpiSupportInstance->Dsdt3 = (EFI_ACPI_DESCRIPTION_HEADER *) CurrentTableList->Table;
|
|
|
|
//
|
|
// If FADT already exists, update table pointers.
|
|
//
|
|
if (AcpiSupportInstance->Fadt3 != NULL) {
|
|
AcpiSupportInstance->Fadt3->Dsdt = (UINT32) (UINTN) AcpiSupportInstance->Dsdt3;
|
|
Buffer64 = (UINT64) (UINTN) AcpiSupportInstance->Dsdt3;
|
|
CopyMem (
|
|
&AcpiSupportInstance->Fadt3->XDsdt,
|
|
&Buffer64,
|
|
sizeof (UINT64)
|
|
);
|
|
|
|
//
|
|
// Checksum FADT table
|
|
//
|
|
AcpiPlatformChecksum (
|
|
AcpiSupportInstance->Fadt3,
|
|
AcpiSupportInstance->Fadt3->Header.Length,
|
|
OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
|
|
Checksum)
|
|
);
|
|
}
|
|
}
|
|
//
|
|
// Checksum the table
|
|
//
|
|
if (Checksum) {
|
|
AcpiPlatformChecksum (
|
|
CurrentTableList->Table,
|
|
CurrentTableList->Table->Length,
|
|
OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
|
|
Checksum)
|
|
);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
//
|
|
// Checksum the table
|
|
//
|
|
if (Checksum) {
|
|
AcpiPlatformChecksum (
|
|
CurrentTableList->Table,
|
|
CurrentTableList->Table->Length,
|
|
OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
|
|
Checksum)
|
|
);
|
|
}
|
|
break;
|
|
}
|
|
//
|
|
// Add the table to the current list of tables
|
|
//
|
|
InsertTailList (&AcpiSupportInstance->TableList, &CurrentTableList->Link);
|
|
|
|
//
|
|
// Add the table to RSDT and/or XSDT table entry lists.
|
|
//
|
|
//
|
|
// Add to ACPI 1.0b table tree
|
|
//
|
|
if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
|
|
if (AddToRsdt) {
|
|
//
|
|
// If the table number exceed the gEfiAcpiMaxNumTables, enlarge the table buffer
|
|
//
|
|
if (AcpiSupportInstance->NumberOfTableEntries1 >= mEfiAcpiMaxNumTables) {
|
|
Status = ReallocateAcpiTableBuffer (AcpiSupportInstance);
|
|
ASSERT_EFI_ERROR (Status);
|
|
}
|
|
CurrentRsdtEntry = (UINT32 *)
|
|
(
|
|
(UINT8 *) AcpiSupportInstance->Rsdt1 +
|
|
sizeof (EFI_ACPI_DESCRIPTION_HEADER) +
|
|
AcpiSupportInstance->NumberOfTableEntries1 *
|
|
sizeof (UINT32)
|
|
);
|
|
|
|
//
|
|
// Add entry to the RSDT unless its the FACS or DSDT
|
|
//
|
|
*CurrentRsdtEntry = (UINT32) (UINTN) CurrentTableList->Table;
|
|
|
|
//
|
|
// Update RSDT length
|
|
//
|
|
AcpiSupportInstance->Rsdt1->Length = AcpiSupportInstance->Rsdt1->Length + sizeof (UINT32);
|
|
|
|
AcpiSupportInstance->NumberOfTableEntries1++;
|
|
}
|
|
}
|
|
//
|
|
// Add to ACPI 2.0/3.0 table tree
|
|
//
|
|
if ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 || (Version & EFI_ACPI_TABLE_VERSION_3_0) != 0) {
|
|
if (AddToRsdt) {
|
|
//
|
|
// If the table number exceed the gEfiAcpiMaxNumTables, enlarge the table buffer
|
|
//
|
|
if (AcpiSupportInstance->NumberOfTableEntries3 >= mEfiAcpiMaxNumTables) {
|
|
Status = ReallocateAcpiTableBuffer (AcpiSupportInstance);
|
|
ASSERT_EFI_ERROR (Status);
|
|
}
|
|
//
|
|
// At this time, it is assumed that RSDT and XSDT maintain parallel lists of tables.
|
|
// If it becomes necessary to maintain separate table lists, changes will be required.
|
|
//
|
|
CurrentRsdtEntry = (UINT32 *)
|
|
(
|
|
(UINT8 *) AcpiSupportInstance->Rsdt3 +
|
|
sizeof (EFI_ACPI_DESCRIPTION_HEADER) +
|
|
AcpiSupportInstance->NumberOfTableEntries3 *
|
|
sizeof (UINT32)
|
|
);
|
|
|
|
//
|
|
// This pointer must not be directly dereferenced as the XSDT entries may not
|
|
// be 64 bit aligned resulting in a possible fault. Use CopyMem to update.
|
|
//
|
|
CurrentXsdtEntry = (VOID *)
|
|
(
|
|
(UINT8 *) AcpiSupportInstance->Xsdt +
|
|
sizeof (EFI_ACPI_DESCRIPTION_HEADER) +
|
|
AcpiSupportInstance->NumberOfTableEntries3 *
|
|
sizeof (UINT64)
|
|
);
|
|
|
|
//
|
|
// Add entry to the RSDT
|
|
//
|
|
*CurrentRsdtEntry = (UINT32) (UINTN) CurrentTableList->Table;
|
|
|
|
//
|
|
// Update RSDT length
|
|
//
|
|
AcpiSupportInstance->Rsdt3->Length = AcpiSupportInstance->Rsdt3->Length + sizeof (UINT32);
|
|
|
|
//
|
|
// Add entry to XSDT, XSDT expects 64 bit pointers, but
|
|
// the table pointers in XSDT are not aligned on 8 byte boundary.
|
|
//
|
|
Buffer64 = (UINT64) (UINTN) CurrentTableList->Table;
|
|
CopyMem (
|
|
CurrentXsdtEntry,
|
|
&Buffer64,
|
|
sizeof (UINT64)
|
|
);
|
|
|
|
//
|
|
// Update length
|
|
//
|
|
AcpiSupportInstance->Xsdt->Length = AcpiSupportInstance->Xsdt->Length + sizeof (UINT64);
|
|
|
|
AcpiSupportInstance->NumberOfTableEntries3++;
|
|
}
|
|
}
|
|
|
|
ChecksumCommonTables (AcpiSupportInstance);
|
|
return EFI_SUCCESS;
|
|
}
|
|
/**
|
|
This function finds the table specified by the handle and returns a pointer to it.
|
|
If the handle is not found, EFI_NOT_FOUND is returned and the contents of Table are
|
|
undefined.
|
|
|
|
@param Handle Table to find.
|
|
@param TableList Table list to search
|
|
@param Table Pointer to table found.
|
|
|
|
@return EFI_SUCCESS The function completed successfully.
|
|
@return EFI_NOT_FOUND No table found matching the handle specified.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
FindTableByHandle (
|
|
IN UINTN Handle,
|
|
IN LIST_ENTRY *TableList,
|
|
OUT EFI_ACPI_TABLE_LIST **Table
|
|
)
|
|
{
|
|
LIST_ENTRY *CurrentLink;
|
|
EFI_ACPI_TABLE_LIST *CurrentTable;
|
|
|
|
//
|
|
// Check for invalid input parameters
|
|
//
|
|
ASSERT (Table);
|
|
|
|
//
|
|
// Find the table
|
|
//
|
|
CurrentLink = TableList->ForwardLink;
|
|
|
|
while (CurrentLink != TableList) {
|
|
CurrentTable = EFI_ACPI_TABLE_LIST_FROM_LINK (CurrentLink);
|
|
if (CurrentTable->Handle == Handle) {
|
|
//
|
|
// Found handle, so return this table.
|
|
//
|
|
*Table = CurrentTable;
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
CurrentLink = CurrentLink->ForwardLink;
|
|
}
|
|
//
|
|
// Table not found
|
|
//
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
/**
|
|
This function removes a basic table from the RSDT and/or XSDT.
|
|
For Acpi 1.0 tables, pass in the Rsdt.
|
|
For Acpi 2.0 tables, pass in both Rsdt and Xsdt.
|
|
|
|
@param Table Pointer to table found.
|
|
@param NumberOfTableEntries Current number of table entries in the RSDT/XSDT
|
|
@param Rsdt Pointer to the RSDT to remove from
|
|
@param Xsdt Pointer to the Xsdt to remove from
|
|
|
|
@return EFI_SUCCESS The function completed successfully.
|
|
@return EFI_INVALID_PARAMETER The table was not found in both Rsdt and Xsdt.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
RemoveTableFromRsdt (
|
|
IN OUT EFI_ACPI_TABLE_LIST * Table,
|
|
IN OUT UINTN *NumberOfTableEntries,
|
|
IN OUT EFI_ACPI_DESCRIPTION_HEADER * Rsdt,
|
|
IN OUT EFI_ACPI_DESCRIPTION_HEADER * Xsdt OPTIONAL
|
|
)
|
|
{
|
|
UINT32 *CurrentRsdtEntry;
|
|
VOID *CurrentXsdtEntry;
|
|
UINT64 CurrentTablePointer64;
|
|
UINTN TempIndex;
|
|
|
|
//
|
|
// Check for invalid input parameters
|
|
//
|
|
ASSERT (Table);
|
|
ASSERT (NumberOfTableEntries);
|
|
ASSERT (Rsdt);
|
|
|
|
//
|
|
// Find the table entry in the RSDT and XSDT
|
|
//
|
|
for (TempIndex = 0; TempIndex < *NumberOfTableEntries; TempIndex++) {
|
|
//
|
|
// At this time, it is assumed that RSDT and XSDT maintain parallel lists of tables.
|
|
// If it becomes necessary to maintain separate table lists, changes will be required.
|
|
//
|
|
CurrentRsdtEntry = (UINT32 *) ((UINT8 *) Rsdt + sizeof (EFI_ACPI_DESCRIPTION_HEADER) + TempIndex * sizeof (UINT32));
|
|
if (Xsdt != NULL) {
|
|
//
|
|
// This pointer must not be directly dereferenced as the XSDT entries may not
|
|
// be 64 bit aligned resulting in a possible fault. Use CopyMem to update.
|
|
//
|
|
CurrentXsdtEntry = (VOID *) ((UINT8 *) Xsdt + sizeof (EFI_ACPI_DESCRIPTION_HEADER) + TempIndex * sizeof (UINT64));
|
|
|
|
//
|
|
// Read the entry value out of the XSDT
|
|
//
|
|
CopyMem (&CurrentTablePointer64, CurrentXsdtEntry, sizeof (UINT64));
|
|
} else {
|
|
//
|
|
// Initialize to NULL
|
|
//
|
|
CurrentXsdtEntry = 0;
|
|
CurrentTablePointer64 = 0;
|
|
}
|
|
//
|
|
// Check if we have found the corresponding entry in both RSDT and XSDT
|
|
//
|
|
if (*CurrentRsdtEntry == (UINT32) (UINTN) Table->Table &&
|
|
((Xsdt == NULL) || CurrentTablePointer64 == (UINT64) (UINTN) Table->Table)
|
|
) {
|
|
//
|
|
// Found entry, so copy all following entries and shrink table
|
|
// We actually copy all + 1 to copy the initialized value of memory over
|
|
// the last entry.
|
|
//
|
|
CopyMem (CurrentRsdtEntry, CurrentRsdtEntry + 1, (*NumberOfTableEntries - TempIndex) * sizeof (UINT32));
|
|
Rsdt->Length = Rsdt->Length - sizeof (UINT32);
|
|
if (Xsdt != NULL) {
|
|
CopyMem (CurrentXsdtEntry, ((UINT64 *) CurrentXsdtEntry) + 1, (*NumberOfTableEntries - TempIndex) * sizeof (UINT64));
|
|
Xsdt->Length = Xsdt->Length - sizeof (UINT64);
|
|
}
|
|
break;
|
|
} else if (TempIndex + 1 == *NumberOfTableEntries) {
|
|
//
|
|
// At the last entry, and table not found
|
|
//
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
}
|
|
//
|
|
// Checksum the tables
|
|
//
|
|
AcpiPlatformChecksum (
|
|
Rsdt,
|
|
Rsdt->Length,
|
|
OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
|
|
Checksum)
|
|
);
|
|
|
|
if (Xsdt != NULL) {
|
|
AcpiPlatformChecksum (
|
|
Xsdt,
|
|
Xsdt->Length,
|
|
OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
|
|
Checksum)
|
|
);
|
|
}
|
|
//
|
|
// Decrement the number of tables
|
|
//
|
|
(*NumberOfTableEntries)--;
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
/**
|
|
This function removes a table and frees any associated memory.
|
|
|
|
@param AcpiSupportInstance Instance of the protocol.
|
|
@param Version Version(s) to delete.
|
|
@param Table Pointer to table found.
|
|
|
|
@return EFI_SUCCESS The function completed successfully.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
DeleteTable (
|
|
IN EFI_ACPI_SUPPORT_INSTANCE *AcpiSupportInstance,
|
|
IN EFI_ACPI_TABLE_VERSION Version,
|
|
IN OUT EFI_ACPI_TABLE_LIST *Table
|
|
)
|
|
{
|
|
UINT32 CurrentTableSignature;
|
|
BOOLEAN RemoveFromRsdt;
|
|
|
|
//
|
|
// Check for invalid input parameters
|
|
//
|
|
ASSERT (AcpiSupportInstance);
|
|
ASSERT (Table);
|
|
|
|
//
|
|
// Init locals
|
|
//
|
|
RemoveFromRsdt = TRUE;
|
|
|
|
if (Table->Table != NULL) {
|
|
CurrentTableSignature = ((EFI_ACPI_COMMON_HEADER *) Table->Table)->Signature;
|
|
|
|
//
|
|
// Basic tasks to accomplish delete are:
|
|
// Determine removal requirements (in RSDT/XSDT or not)
|
|
// Remove entry from RSDT/XSDT
|
|
// Remove any table references to the table
|
|
// If no one is using the table
|
|
// Free the table (removing pointers from private data and tables)
|
|
// Remove from list
|
|
// Free list structure
|
|
//
|
|
//
|
|
// Determine if this table is in the RSDT or XSDT
|
|
//
|
|
if ((CurrentTableSignature == EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE) ||
|
|
(CurrentTableSignature == EFI_ACPI_2_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE) ||
|
|
(CurrentTableSignature == EFI_ACPI_3_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE)
|
|
) {
|
|
RemoveFromRsdt = FALSE;
|
|
}
|
|
//
|
|
// We don't remove the FADT in the standard way because some
|
|
// OS expect the FADT to be early in the table list.
|
|
// So we always put it as the first element in the list.
|
|
//
|
|
if (CurrentTableSignature == EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {
|
|
RemoveFromRsdt = FALSE;
|
|
}
|
|
|
|
//
|
|
// Remove the table from RSDT and XSDT
|
|
//
|
|
|
|
//
|
|
// This is a basic table, remove it from any lists and the Rsdt and/or Xsdt
|
|
//
|
|
if (Version & EFI_ACPI_TABLE_VERSION_NONE & Table->Version) {
|
|
//
|
|
// Remove this version from the table
|
|
//
|
|
Table->Version = Table->Version &~EFI_ACPI_TABLE_VERSION_NONE;
|
|
}
|
|
|
|
if (Version & EFI_ACPI_TABLE_VERSION_1_0B & Table->Version) {
|
|
//
|
|
// Remove this version from the table
|
|
//
|
|
Table->Version = Table->Version &~EFI_ACPI_TABLE_VERSION_1_0B;
|
|
|
|
//
|
|
// Remove from Rsdt. We don't care about the return value because it is
|
|
// acceptable for the table to not exist in Rsdt.
|
|
// We didn't add some tables so we don't remove them.
|
|
//
|
|
if (RemoveFromRsdt) {
|
|
RemoveTableFromRsdt (
|
|
Table,
|
|
&AcpiSupportInstance->NumberOfTableEntries1,
|
|
AcpiSupportInstance->Rsdt1,
|
|
NULL
|
|
);
|
|
}
|
|
}
|
|
|
|
if ((Version & EFI_ACPI_TABLE_VERSION_2_0 & Table->Version) ||
|
|
(Version & EFI_ACPI_TABLE_VERSION_3_0 & Table->Version)) {
|
|
//
|
|
// Remove this version from the table
|
|
//
|
|
if (Version & EFI_ACPI_TABLE_VERSION_2_0 & Table->Version) {
|
|
Table->Version = Table->Version &~EFI_ACPI_TABLE_VERSION_2_0;
|
|
}
|
|
if (Version & EFI_ACPI_TABLE_VERSION_3_0 & Table->Version) {
|
|
Table->Version = Table->Version &~EFI_ACPI_TABLE_VERSION_3_0;
|
|
}
|
|
|
|
//
|
|
// Remove from Rsdt and Xsdt. We don't care about the return value
|
|
// because it is acceptable for the table to not exist in Rsdt/Xsdt.
|
|
// We didn't add some tables so we don't remove them.
|
|
//
|
|
if (RemoveFromRsdt) {
|
|
RemoveTableFromRsdt (
|
|
Table,
|
|
&AcpiSupportInstance->NumberOfTableEntries3,
|
|
AcpiSupportInstance->Rsdt3,
|
|
AcpiSupportInstance->Xsdt
|
|
);
|
|
}
|
|
}
|
|
//
|
|
// Free the table, clean up any dependent tables and our private data pointers.
|
|
//
|
|
switch (Table->Table->Signature) {
|
|
|
|
case EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE:
|
|
if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
|
|
AcpiSupportInstance->Fadt1 = NULL;
|
|
}
|
|
|
|
if ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 ||
|
|
(Version & EFI_ACPI_TABLE_VERSION_3_0) != 0) {
|
|
AcpiSupportInstance->Fadt3 = NULL;
|
|
}
|
|
break;
|
|
|
|
case EFI_ACPI_3_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE:
|
|
if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
|
|
AcpiSupportInstance->Facs1 = NULL;
|
|
|
|
//
|
|
// Update FADT table pointers
|
|
//
|
|
if (AcpiSupportInstance->Fadt1 != NULL) {
|
|
AcpiSupportInstance->Fadt1->FirmwareCtrl = 0;
|
|
|
|
//
|
|
// Checksum table
|
|
//
|
|
AcpiPlatformChecksum (
|
|
AcpiSupportInstance->Fadt1,
|
|
AcpiSupportInstance->Fadt1->Header.Length,
|
|
OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
|
|
Checksum)
|
|
);
|
|
}
|
|
}
|
|
|
|
if ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 ||
|
|
(Version & EFI_ACPI_TABLE_VERSION_3_0) != 0) {
|
|
AcpiSupportInstance->Facs3 = NULL;
|
|
|
|
//
|
|
// Update FADT table pointers
|
|
//
|
|
if (AcpiSupportInstance->Fadt3 != NULL) {
|
|
AcpiSupportInstance->Fadt3->FirmwareCtrl = 0;
|
|
ZeroMem (&AcpiSupportInstance->Fadt3->XFirmwareCtrl, sizeof (UINT64));
|
|
|
|
//
|
|
// Checksum table
|
|
//
|
|
AcpiPlatformChecksum (
|
|
AcpiSupportInstance->Fadt3,
|
|
AcpiSupportInstance->Fadt3->Header.Length,
|
|
OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
|
|
Checksum)
|
|
);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case EFI_ACPI_3_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE:
|
|
if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
|
|
AcpiSupportInstance->Dsdt1 = NULL;
|
|
|
|
//
|
|
// Update FADT table pointers
|
|
//
|
|
if (AcpiSupportInstance->Fadt1 != NULL) {
|
|
AcpiSupportInstance->Fadt1->Dsdt = 0;
|
|
|
|
//
|
|
// Checksum table
|
|
//
|
|
AcpiPlatformChecksum (
|
|
AcpiSupportInstance->Fadt1,
|
|
AcpiSupportInstance->Fadt1->Header.Length,
|
|
OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
|
|
Checksum)
|
|
);
|
|
}
|
|
}
|
|
|
|
|
|
if ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 ||
|
|
(Version & EFI_ACPI_TABLE_VERSION_3_0) != 0) {
|
|
AcpiSupportInstance->Dsdt3 = NULL;
|
|
|
|
//
|
|
// Update FADT table pointers
|
|
//
|
|
if (AcpiSupportInstance->Fadt3 != NULL) {
|
|
AcpiSupportInstance->Fadt3->Dsdt = 0;
|
|
ZeroMem (&AcpiSupportInstance->Fadt3->XDsdt, sizeof (UINT64));
|
|
|
|
//
|
|
// Checksum table
|
|
//
|
|
AcpiPlatformChecksum (
|
|
AcpiSupportInstance->Fadt3,
|
|
AcpiSupportInstance->Fadt3->Header.Length,
|
|
OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
|
|
Checksum)
|
|
);
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
//
|
|
// Do nothing
|
|
//
|
|
break;
|
|
}
|
|
}
|
|
//
|
|
// If no version is using this table anymore, remove and free list entry.
|
|
//
|
|
if (Table->Version == 0) {
|
|
//
|
|
// Free the Table
|
|
//
|
|
gBS->FreePages (Table->PageAddress, Table->NumberOfPages);
|
|
RemoveEntryList (&(Table->Link));
|
|
gBS->FreePool (Table);
|
|
}
|
|
//
|
|
// Done
|
|
//
|
|
return EFI_SUCCESS;
|
|
}
|
|
/**
|
|
This function finds and removes the table specified by the handle.
|
|
|
|
@param AcpiSupportInstance Instance of the protocol.
|
|
@param Version Bitmask of which versions to remove.
|
|
@param Handle Table to remove.
|
|
|
|
@return EFI_SUCCESS The function completed successfully.
|
|
@return EFI_ABORTED An error occurred.
|
|
@return EFI_NOT_FOUND Handle not found in table list.
|
|
**/
|
|
EFI_STATUS
|
|
RemoveTableFromList (
|
|
IN EFI_ACPI_SUPPORT_INSTANCE *AcpiSupportInstance,
|
|
IN EFI_ACPI_TABLE_VERSION Version,
|
|
IN UINTN Handle
|
|
)
|
|
{
|
|
EFI_ACPI_TABLE_LIST *Table;
|
|
EFI_STATUS Status;
|
|
|
|
Table = NULL;
|
|
|
|
//
|
|
// Check for invalid input parameters
|
|
//
|
|
ASSERT (AcpiSupportInstance);
|
|
|
|
//
|
|
// Find the table
|
|
//
|
|
Status = FindTableByHandle (
|
|
Handle,
|
|
&AcpiSupportInstance->TableList,
|
|
&Table
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
//
|
|
// Remove the table
|
|
//
|
|
Status = DeleteTable (AcpiSupportInstance, Version, Table);
|
|
if (EFI_ERROR (Status)) {
|
|
return EFI_ABORTED;
|
|
}
|
|
//
|
|
// Completed successfully
|
|
//
|
|
return EFI_SUCCESS;
|
|
}
|
|
/**
|
|
This function calculates and updates an UINT8 checksum.
|
|
|
|
@param Buffer Pointer to buffer to checksum
|
|
@param Size Number of bytes to checksum
|
|
@param ChecksumOffset Offset to place the checksum result in
|
|
|
|
@return EFI_SUCCESS The function completed successfully.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
AcpiPlatformChecksum (
|
|
IN VOID *Buffer,
|
|
IN UINTN Size,
|
|
IN UINTN ChecksumOffset
|
|
)
|
|
{
|
|
UINT8 Sum;
|
|
UINT8 *Ptr;
|
|
|
|
Sum = 0;
|
|
//
|
|
// Initialize pointer
|
|
//
|
|
Ptr = Buffer;
|
|
|
|
//
|
|
// set checksum to 0 first
|
|
//
|
|
Ptr[ChecksumOffset] = 0;
|
|
|
|
//
|
|
// add all content of buffer
|
|
//
|
|
while ((Size--) != 0) {
|
|
Sum = (UINT8) (Sum + (*Ptr++));
|
|
}
|
|
//
|
|
// set checksum
|
|
//
|
|
Ptr = Buffer;
|
|
Ptr[ChecksumOffset] = (UINT8) (0xff - Sum + 1);
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
/**
|
|
Checksum all versions of the common tables, RSDP, RSDT, XSDT.
|
|
|
|
@param AcpiSupportInstance Protocol instance private data.
|
|
|
|
@return EFI_SUCCESS The function completed successfully.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
ChecksumCommonTables (
|
|
IN OUT EFI_ACPI_SUPPORT_INSTANCE *AcpiSupportInstance
|
|
)
|
|
{
|
|
//
|
|
// RSDP ACPI 1.0 checksum for 1.0 table. This is only the first 20 bytes of the structure
|
|
//
|
|
AcpiPlatformChecksum (
|
|
AcpiSupportInstance->Rsdp1,
|
|
sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER),
|
|
OFFSET_OF (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER,
|
|
Checksum)
|
|
);
|
|
|
|
//
|
|
// RSDP ACPI 1.0 checksum for 2.0/3.0 table. This is only the first 20 bytes of the structure
|
|
//
|
|
AcpiPlatformChecksum (
|
|
AcpiSupportInstance->Rsdp3,
|
|
sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER),
|
|
OFFSET_OF (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER,
|
|
Checksum)
|
|
);
|
|
|
|
//
|
|
// RSDP ACPI 2.0/3.0 checksum, this is the entire table
|
|
//
|
|
AcpiPlatformChecksum (
|
|
AcpiSupportInstance->Rsdp3,
|
|
sizeof (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER),
|
|
OFFSET_OF (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER,
|
|
ExtendedChecksum)
|
|
);
|
|
|
|
//
|
|
// RSDT checksums
|
|
//
|
|
AcpiPlatformChecksum (
|
|
AcpiSupportInstance->Rsdt1,
|
|
AcpiSupportInstance->Rsdt1->Length,
|
|
OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
|
|
Checksum)
|
|
);
|
|
|
|
AcpiPlatformChecksum (
|
|
AcpiSupportInstance->Rsdt3,
|
|
AcpiSupportInstance->Rsdt3->Length,
|
|
OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
|
|
Checksum)
|
|
);
|
|
|
|
//
|
|
// XSDT checksum
|
|
//
|
|
AcpiPlatformChecksum (
|
|
AcpiSupportInstance->Xsdt,
|
|
AcpiSupportInstance->Xsdt->Length,
|
|
OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
|
|
Checksum)
|
|
);
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
/**
|
|
Constructor for the ACPI support protocol to initializes instance data.
|
|
|
|
@param AcpiSupportInstance Instance to construct
|
|
|
|
@retval EFI_SUCCESS Instance initialized.
|
|
@retval EFI_OUT_OF_RESOURCES Unable to allocate required resources.
|
|
**/
|
|
EFI_STATUS
|
|
AcpiSupportAcpiSupportConstructor (
|
|
IN EFI_ACPI_SUPPORT_INSTANCE *AcpiSupportInstance
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
UINT64 CurrentData;
|
|
UINTN TotalSize;
|
|
UINTN RsdpTableSize;
|
|
UINT8 *Pointer;
|
|
EFI_PHYSICAL_ADDRESS PageAddress;
|
|
|
|
//
|
|
// Check for invalid input parameters
|
|
//
|
|
ASSERT (AcpiSupportInstance);
|
|
|
|
InitializeListHead (&AcpiSupportInstance->TableList);
|
|
AcpiSupportInstance->CurrentHandle = 1;
|
|
AcpiSupportInstance->AcpiSupport.GetAcpiTable = GetAcpiTable;
|
|
AcpiSupportInstance->AcpiSupport.SetAcpiTable = SetAcpiTable;
|
|
AcpiSupportInstance->AcpiSupport.PublishTables = PublishTables;
|
|
|
|
AcpiSupportInstance->AcpiTableProtocol.InstallAcpiTable = InstallAcpiTable;
|
|
AcpiSupportInstance->AcpiTableProtocol.UninstallAcpiTable = UninstallAcpiTable;
|
|
|
|
//
|
|
// Create RSDP table
|
|
//
|
|
RsdpTableSize = sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER) +
|
|
sizeof (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER);
|
|
|
|
PageAddress = 0xFFFFFFFF;
|
|
Status = gBS->AllocatePages (
|
|
AllocateMaxAddress,
|
|
EfiACPIReclaimMemory,
|
|
EFI_SIZE_TO_PAGES (RsdpTableSize),
|
|
&PageAddress
|
|
);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
Pointer = (UINT8 *) (UINTN) PageAddress;
|
|
ZeroMem (Pointer, RsdpTableSize);
|
|
|
|
AcpiSupportInstance->Rsdp1 = (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER *) Pointer;
|
|
Pointer += sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER);
|
|
AcpiSupportInstance->Rsdp3 = (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *) Pointer;
|
|
|
|
//
|
|
// Create RSDT, XSDT structures
|
|
//
|
|
TotalSize = sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 1.0 RSDT
|
|
mEfiAcpiMaxNumTables * sizeof (UINT32) +
|
|
sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 RSDT
|
|
mEfiAcpiMaxNumTables * sizeof (UINT32) +
|
|
sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 XSDT
|
|
mEfiAcpiMaxNumTables * sizeof (UINT64);
|
|
|
|
//
|
|
// Allocate memory in the lower 32 bit of address range for
|
|
// compatibility with ACPI 1.0 OS.
|
|
//
|
|
// This is done because ACPI 1.0 pointers are 32 bit values.
|
|
// ACPI 2.0 OS and all 64 bit OS must use the 64 bit ACPI table addresses.
|
|
// There is no architectural reason these should be below 4GB, it is purely
|
|
// for convenience of implementation that we force memory below 4GB.
|
|
//
|
|
PageAddress = 0xFFFFFFFF;
|
|
Status = gBS->AllocatePages (
|
|
AllocateMaxAddress,
|
|
EfiACPIReclaimMemory,
|
|
EFI_SIZE_TO_PAGES (TotalSize),
|
|
&PageAddress
|
|
);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
gBS->FreePages ((EFI_PHYSICAL_ADDRESS)(UINTN)AcpiSupportInstance->Rsdp1, EFI_SIZE_TO_PAGES (RsdpTableSize));
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
Pointer = (UINT8 *) (UINTN) PageAddress;
|
|
ZeroMem (Pointer, TotalSize);
|
|
|
|
AcpiSupportInstance->Rsdt1 = (EFI_ACPI_DESCRIPTION_HEADER *) Pointer;
|
|
Pointer += (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + EFI_ACPI_MAX_NUM_TABLES * sizeof (UINT32));
|
|
AcpiSupportInstance->Rsdt3 = (EFI_ACPI_DESCRIPTION_HEADER *) Pointer;
|
|
Pointer += (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + EFI_ACPI_MAX_NUM_TABLES * sizeof (UINT32));
|
|
AcpiSupportInstance->Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *) Pointer;
|
|
|
|
//
|
|
// Initialize RSDP
|
|
//
|
|
CurrentData = EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER_SIGNATURE;
|
|
CopyMem (&AcpiSupportInstance->Rsdp1->Signature, &CurrentData, sizeof (UINT64));
|
|
CopyMem (AcpiSupportInstance->Rsdp1->OemId, EFI_ACPI_OEM_ID, 6);
|
|
AcpiSupportInstance->Rsdp1->Reserved = EFI_ACPI_RESERVED_BYTE;
|
|
AcpiSupportInstance->Rsdp1->RsdtAddress = (UINT32) (UINTN) AcpiSupportInstance->Rsdt1;
|
|
|
|
CurrentData = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER_SIGNATURE;
|
|
CopyMem (&AcpiSupportInstance->Rsdp3->Signature, &CurrentData, sizeof (UINT64));
|
|
CopyMem (AcpiSupportInstance->Rsdp3->OemId, EFI_ACPI_OEM_ID, 6);
|
|
AcpiSupportInstance->Rsdp3->Revision = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER_REVISION;
|
|
AcpiSupportInstance->Rsdp3->RsdtAddress = (UINT32) (UINTN) AcpiSupportInstance->Rsdt3;
|
|
AcpiSupportInstance->Rsdp3->Length = sizeof (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER);
|
|
CurrentData = (UINT64) (UINTN) AcpiSupportInstance->Xsdt;
|
|
CopyMem (&AcpiSupportInstance->Rsdp3->XsdtAddress, &CurrentData, sizeof (UINT64));
|
|
SetMem (AcpiSupportInstance->Rsdp3->Reserved, 3, EFI_ACPI_RESERVED_BYTE);
|
|
|
|
//
|
|
// Initialize Rsdt
|
|
//
|
|
// Note that we "reserve" one entry for the FADT so it can always be
|
|
// at the beginning of the list of tables. Some OS don't seem
|
|
// to find it correctly if it is too far down the list.
|
|
//
|
|
AcpiSupportInstance->Rsdt1->Signature = EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE;
|
|
AcpiSupportInstance->Rsdt1->Length = sizeof (EFI_ACPI_DESCRIPTION_HEADER);
|
|
AcpiSupportInstance->Rsdt1->Revision = EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_TABLE_REVISION;
|
|
CopyMem (AcpiSupportInstance->Rsdt1->OemId, EFI_ACPI_OEM_ID, 6);
|
|
CurrentData = EFI_ACPI_OEM_TABLE_ID;
|
|
CopyMem (&AcpiSupportInstance->Rsdt1->OemTableId, &CurrentData, sizeof (UINT64));
|
|
AcpiSupportInstance->Rsdt1->OemRevision = EFI_ACPI_OEM_REVISION;
|
|
AcpiSupportInstance->Rsdt1->CreatorId = EFI_ACPI_CREATOR_ID;
|
|
AcpiSupportInstance->Rsdt1->CreatorRevision = EFI_ACPI_CREATOR_REVISION;
|
|
//
|
|
// We always reserve first one for FADT
|
|
//
|
|
AcpiSupportInstance->NumberOfTableEntries1 = 1;
|
|
AcpiSupportInstance->Rsdt1->Length = AcpiSupportInstance->Rsdt1->Length + sizeof(UINT32);
|
|
|
|
AcpiSupportInstance->Rsdt3->Signature = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE;
|
|
AcpiSupportInstance->Rsdt3->Length = sizeof (EFI_ACPI_DESCRIPTION_HEADER);
|
|
AcpiSupportInstance->Rsdt3->Revision = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_TABLE_REVISION;
|
|
CopyMem (AcpiSupportInstance->Rsdt3->OemId, EFI_ACPI_OEM_ID, 6);
|
|
CurrentData = EFI_ACPI_OEM_TABLE_ID;
|
|
CopyMem (&AcpiSupportInstance->Rsdt3->OemTableId, &CurrentData, sizeof (UINT64));
|
|
AcpiSupportInstance->Rsdt3->OemRevision = EFI_ACPI_OEM_REVISION;
|
|
AcpiSupportInstance->Rsdt3->CreatorId = EFI_ACPI_CREATOR_ID;
|
|
AcpiSupportInstance->Rsdt3->CreatorRevision = EFI_ACPI_CREATOR_REVISION;
|
|
//
|
|
// We always reserve first one for FADT
|
|
//
|
|
AcpiSupportInstance->NumberOfTableEntries3 = 1;
|
|
AcpiSupportInstance->Rsdt3->Length = AcpiSupportInstance->Rsdt3->Length + sizeof(UINT32);
|
|
|
|
//
|
|
// Initialize Xsdt
|
|
//
|
|
AcpiSupportInstance->Xsdt->Signature = EFI_ACPI_3_0_EXTENDED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE;
|
|
AcpiSupportInstance->Xsdt->Length = sizeof (EFI_ACPI_DESCRIPTION_HEADER);
|
|
AcpiSupportInstance->Xsdt->Revision = EFI_ACPI_3_0_EXTENDED_SYSTEM_DESCRIPTION_TABLE_REVISION;
|
|
CopyMem (AcpiSupportInstance->Xsdt->OemId, EFI_ACPI_OEM_ID, 6);
|
|
CurrentData = EFI_ACPI_OEM_TABLE_ID;
|
|
CopyMem (&AcpiSupportInstance->Xsdt->OemTableId, &CurrentData, sizeof (UINT64));
|
|
AcpiSupportInstance->Xsdt->OemRevision = EFI_ACPI_OEM_REVISION;
|
|
AcpiSupportInstance->Xsdt->CreatorId = EFI_ACPI_CREATOR_ID;
|
|
AcpiSupportInstance->Xsdt->CreatorRevision = EFI_ACPI_CREATOR_REVISION;
|
|
//
|
|
// We always reserve first one for FADT
|
|
//
|
|
AcpiSupportInstance->Xsdt->Length = AcpiSupportInstance->Xsdt->Length + sizeof(UINT64);
|
|
|
|
ChecksumCommonTables (AcpiSupportInstance);
|
|
|
|
//
|
|
// Completed successfully
|
|
//
|
|
return EFI_SUCCESS;
|
|
}
|