![Bob Moore](/assets/img/avatar_default.png)
Added the ACPI_PACKED_POINTERS_NOT_SUPPORTED macro to support C compilers that do not allow the initialization of address pointers within packed structures - even though the hardware itself may support misaligned transfers. Some of the debug data structures are packed by default to minimize size. Added an error message for the case where acpi_os_get_thread_id() returns zero. A non-zero value is required by the core ACPICA code to ensure the proper operation of AML mutexes and recursive control methods. The DSDT is now the only ACPI table that determines whether the AML interpreter is in 32-bit or 64-bit mode. Not really a functional change, but the hooks for per-table 32/64 switching have been removed from the code. A clarification to the ACPI specification is forthcoming in ACPI 3.0B. Fixed a possible leak of an Owner ID in the error path of tbinstal.c acpi_tb_init_table_descriptor() and migrated all table OwnerID deletion to a single place in acpi_tb_uninstall_table() to correct possible leaks when using the acpi_tb_delete_tables_by_type() interface (with assistance from Lance Ortiz.) Fixed a problem with Serialized control methods where the semaphore associated with the method could be over-signaled after multiple method invocations. Fixed two issues with the locking of the internal namespace data structure. Both the Unload() operator and acpi_unload_table() interface now lock the namespace during the namespace deletion associated with the table unload (with assistance from Linn Crosetto.) Fixed problem reports (Valery Podrezov) integrated: - Eliminate unnecessary memory allocation for CreateXxxxField http://bugzilla.kernel.org/show_bug.cgi?id=5426 Fixed problem reports (Fiodor Suietov) integrated: - Incomplete cleanup branches in AcpiTbGetTableRsdt (BZ 369) - On Address Space handler deletion, needless deactivation call (BZ 374) - AcpiRemoveAddressSpaceHandler: validate Device handle parameter (BZ 375) - Possible memory leak, Notify sub-objects of Processor, Power, ThermalZone (BZ 376) - AcpiRemoveAddressSpaceHandler: validate Handler parameter (BZ 378) - Minimum Length of RSDT should be validated (BZ 379) - AcpiRemoveNotifyHandler: return AE_NOT_EXIST if Processor Obj has no Handler (BZ (380) - AcpiUnloadTable: return AE_NOT_EXIST if no table of specified type loaded (BZ 381) Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
472 lines
14 KiB
C
472 lines
14 KiB
C
/******************************************************************************
|
|
*
|
|
* Module Name: tbget - ACPI Table get* routines
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/*
|
|
* Copyright (C) 2000 - 2006, R. Byron Moore
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions, and the following disclaimer,
|
|
* without modification.
|
|
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
|
|
* substantially similar to the "NO WARRANTY" disclaimer below
|
|
* ("Disclaimer") and any redistribution must be conditioned upon
|
|
* including a substantially similar Disclaimer requirement for further
|
|
* binary redistribution.
|
|
* 3. Neither the names of the above-listed copyright holders nor the names
|
|
* of any contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") version 2 as published by the Free
|
|
* Software Foundation.
|
|
*
|
|
* NO WARRANTY
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
|
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGES.
|
|
*/
|
|
|
|
#include <acpi/acpi.h>
|
|
#include <acpi/actables.h>
|
|
|
|
#define _COMPONENT ACPI_TABLES
|
|
ACPI_MODULE_NAME("tbget")
|
|
|
|
/* Local prototypes */
|
|
static acpi_status
|
|
acpi_tb_get_this_table(struct acpi_pointer *address,
|
|
struct acpi_table_header *header,
|
|
struct acpi_table_desc *table_info);
|
|
|
|
static acpi_status
|
|
acpi_tb_table_override(struct acpi_table_header *header,
|
|
struct acpi_table_desc *table_info);
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_tb_get_table
|
|
*
|
|
* PARAMETERS: Address - Address of table to retrieve. Can be
|
|
* Logical or Physical
|
|
* table_info - Where table info is returned
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Get entire table of unknown size.
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_tb_get_table(struct acpi_pointer *address,
|
|
struct acpi_table_desc *table_info)
|
|
{
|
|
acpi_status status;
|
|
struct acpi_table_header header;
|
|
|
|
ACPI_FUNCTION_TRACE(tb_get_table);
|
|
|
|
/* Get the header in order to get signature and table size */
|
|
|
|
status = acpi_tb_get_table_header(address, &header);
|
|
if (ACPI_FAILURE(status)) {
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/* Get the entire table */
|
|
|
|
status = acpi_tb_get_table_body(address, &header, table_info);
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_EXCEPTION((AE_INFO, status,
|
|
"Could not get ACPI table (size %X)",
|
|
header.length));
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_tb_get_table_header
|
|
*
|
|
* PARAMETERS: Address - Address of table to retrieve. Can be
|
|
* Logical or Physical
|
|
* return_header - Where the table header is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Get an ACPI table header. Works in both physical or virtual
|
|
* addressing mode. Works with both physical or logical pointers.
|
|
* Table is either copied or mapped, depending on the pointer
|
|
* type and mode of the processor.
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_tb_get_table_header(struct acpi_pointer *address,
|
|
struct acpi_table_header *return_header)
|
|
{
|
|
acpi_status status = AE_OK;
|
|
struct acpi_table_header *header = NULL;
|
|
|
|
ACPI_FUNCTION_TRACE(tb_get_table_header);
|
|
|
|
/*
|
|
* Flags contains the current processor mode (Virtual or Physical
|
|
* addressing) The pointer_type is either Logical or Physical
|
|
*/
|
|
switch (address->pointer_type) {
|
|
case ACPI_PHYSMODE_PHYSPTR:
|
|
case ACPI_LOGMODE_LOGPTR:
|
|
|
|
/* Pointer matches processor mode, copy the header */
|
|
|
|
ACPI_MEMCPY(return_header, address->pointer.logical,
|
|
sizeof(struct acpi_table_header));
|
|
break;
|
|
|
|
case ACPI_LOGMODE_PHYSPTR:
|
|
|
|
/* Create a logical address for the physical pointer */
|
|
|
|
status = acpi_os_map_memory(address->pointer.physical,
|
|
sizeof(struct acpi_table_header),
|
|
(void *)&header);
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_ERROR((AE_INFO,
|
|
"Could not map memory at %8.8X%8.8X for table header",
|
|
ACPI_FORMAT_UINT64(address->pointer.
|
|
physical)));
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/* Copy header and delete mapping */
|
|
|
|
ACPI_MEMCPY(return_header, header,
|
|
sizeof(struct acpi_table_header));
|
|
acpi_os_unmap_memory(header, sizeof(struct acpi_table_header));
|
|
break;
|
|
|
|
default:
|
|
|
|
ACPI_ERROR((AE_INFO, "Invalid address flags %X",
|
|
address->pointer_type));
|
|
return_ACPI_STATUS(AE_BAD_PARAMETER);
|
|
}
|
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "Table Signature: [%4.4s]\n",
|
|
return_header->signature));
|
|
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_tb_get_table_body
|
|
*
|
|
* PARAMETERS: Address - Address of table to retrieve. Can be
|
|
* Logical or Physical
|
|
* Header - Header of the table to retrieve
|
|
* table_info - Where the table info is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Get an entire ACPI table with support to allow the host OS to
|
|
* replace the table with a newer version (table override.)
|
|
* Works in both physical or virtual
|
|
* addressing mode. Works with both physical or logical pointers.
|
|
* Table is either copied or mapped, depending on the pointer
|
|
* type and mode of the processor.
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_tb_get_table_body(struct acpi_pointer *address,
|
|
struct acpi_table_header *header,
|
|
struct acpi_table_desc *table_info)
|
|
{
|
|
acpi_status status;
|
|
|
|
ACPI_FUNCTION_TRACE(tb_get_table_body);
|
|
|
|
if (!table_info || !address) {
|
|
return_ACPI_STATUS(AE_BAD_PARAMETER);
|
|
}
|
|
|
|
/* Attempt table override. */
|
|
|
|
status = acpi_tb_table_override(header, table_info);
|
|
if (ACPI_SUCCESS(status)) {
|
|
|
|
/* Table was overridden by the host OS */
|
|
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/* No override, get the original table */
|
|
|
|
status = acpi_tb_get_this_table(address, header, table_info);
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_tb_table_override
|
|
*
|
|
* PARAMETERS: Header - Pointer to table header
|
|
* table_info - Return info if table is overridden
|
|
*
|
|
* RETURN: None
|
|
*
|
|
* DESCRIPTION: Attempts override of current table with a new one if provided
|
|
* by the host OS.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static acpi_status
|
|
acpi_tb_table_override(struct acpi_table_header *header,
|
|
struct acpi_table_desc *table_info)
|
|
{
|
|
struct acpi_table_header *new_table;
|
|
acpi_status status;
|
|
struct acpi_pointer address;
|
|
|
|
ACPI_FUNCTION_TRACE(tb_table_override);
|
|
|
|
/*
|
|
* The OSL will examine the header and decide whether to override this
|
|
* table. If it decides to override, a table will be returned in new_table,
|
|
* which we will then copy.
|
|
*/
|
|
status = acpi_os_table_override(header, &new_table);
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
/* Some severe error from the OSL, but we basically ignore it */
|
|
|
|
ACPI_EXCEPTION((AE_INFO, status,
|
|
"Could not override ACPI table"));
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
if (!new_table) {
|
|
|
|
/* No table override */
|
|
|
|
return_ACPI_STATUS(AE_NO_ACPI_TABLES);
|
|
}
|
|
|
|
/*
|
|
* We have a new table to override the old one. Get a copy of
|
|
* the new one. We know that the new table has a logical pointer.
|
|
*/
|
|
address.pointer_type = ACPI_LOGICAL_POINTER | ACPI_LOGICAL_ADDRESSING;
|
|
address.pointer.logical = new_table;
|
|
|
|
status = acpi_tb_get_this_table(&address, new_table, table_info);
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_EXCEPTION((AE_INFO, status, "Could not copy ACPI table"));
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/* Copy the table info */
|
|
|
|
ACPI_INFO((AE_INFO, "Table [%4.4s] replaced by host OS",
|
|
table_info->pointer->signature));
|
|
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_tb_get_this_table
|
|
*
|
|
* PARAMETERS: Address - Address of table to retrieve. Can be
|
|
* Logical or Physical
|
|
* Header - Header of the table to retrieve
|
|
* table_info - Where the table info is returned
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Get an entire ACPI table. Works in both physical or virtual
|
|
* addressing mode. Works with both physical or logical pointers.
|
|
* Table is either copied or mapped, depending on the pointer
|
|
* type and mode of the processor.
|
|
*
|
|
******************************************************************************/
|
|
|
|
static acpi_status
|
|
acpi_tb_get_this_table(struct acpi_pointer *address,
|
|
struct acpi_table_header *header,
|
|
struct acpi_table_desc *table_info)
|
|
{
|
|
struct acpi_table_header *full_table = NULL;
|
|
u8 allocation;
|
|
acpi_status status = AE_OK;
|
|
|
|
ACPI_FUNCTION_TRACE(tb_get_this_table);
|
|
|
|
/* Validate minimum length */
|
|
|
|
if (header->length < sizeof(struct acpi_table_header)) {
|
|
ACPI_ERROR((AE_INFO,
|
|
"Table length (%X) is smaller than minimum (%X)",
|
|
header->length, sizeof(struct acpi_table_header)));
|
|
|
|
return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
|
|
}
|
|
|
|
/*
|
|
* Flags contains the current processor mode (Virtual or Physical
|
|
* addressing) The pointer_type is either Logical or Physical
|
|
*/
|
|
switch (address->pointer_type) {
|
|
case ACPI_PHYSMODE_PHYSPTR:
|
|
case ACPI_LOGMODE_LOGPTR:
|
|
|
|
/* Pointer matches processor mode, copy the table to a new buffer */
|
|
|
|
full_table = ACPI_ALLOCATE(header->length);
|
|
if (!full_table) {
|
|
ACPI_ERROR((AE_INFO,
|
|
"Could not allocate table memory for [%4.4s] length %X",
|
|
header->signature, header->length));
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
|
}
|
|
|
|
/* Copy the entire table (including header) to the local buffer */
|
|
|
|
ACPI_MEMCPY(full_table, address->pointer.logical,
|
|
header->length);
|
|
|
|
/* Save allocation type */
|
|
|
|
allocation = ACPI_MEM_ALLOCATED;
|
|
break;
|
|
|
|
case ACPI_LOGMODE_PHYSPTR:
|
|
|
|
/*
|
|
* Just map the table's physical memory
|
|
* into our address space.
|
|
*/
|
|
status = acpi_os_map_memory(address->pointer.physical,
|
|
(acpi_size) header->length,
|
|
ACPI_CAST_PTR(void, &full_table));
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_ERROR((AE_INFO,
|
|
"Could not map memory for table [%4.4s] at %8.8X%8.8X for length %X",
|
|
header->signature,
|
|
ACPI_FORMAT_UINT64(address->pointer.
|
|
physical),
|
|
header->length));
|
|
return (status);
|
|
}
|
|
|
|
/* Save allocation type */
|
|
|
|
allocation = ACPI_MEM_MAPPED;
|
|
break;
|
|
|
|
default:
|
|
|
|
ACPI_ERROR((AE_INFO, "Invalid address flags %X",
|
|
address->pointer_type));
|
|
return_ACPI_STATUS(AE_BAD_PARAMETER);
|
|
}
|
|
|
|
/*
|
|
* Validate checksum for _most_ tables,
|
|
* even the ones whose signature we don't recognize
|
|
*/
|
|
if (table_info->type != ACPI_TABLE_ID_FACS) {
|
|
status = acpi_tb_verify_table_checksum(full_table);
|
|
|
|
#if (!ACPI_CHECKSUM_ABORT)
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
/* Ignore the error if configuration says so */
|
|
|
|
status = AE_OK;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/* Return values */
|
|
|
|
table_info->pointer = full_table;
|
|
table_info->length = (acpi_size) header->length;
|
|
table_info->allocation = allocation;
|
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
|
|
"Found table [%4.4s] at %8.8X%8.8X, mapped/copied to %p\n",
|
|
full_table->signature,
|
|
ACPI_FORMAT_UINT64(address->pointer.physical),
|
|
full_table));
|
|
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_tb_get_table_ptr
|
|
*
|
|
* PARAMETERS: table_type - one of the defined table types
|
|
* Instance - Which table of this type
|
|
* return_table - pointer to location to place the pointer for
|
|
* return
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: This function is called to get the pointer to an ACPI table.
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_tb_get_table_ptr(acpi_table_type table_type,
|
|
u32 instance, struct acpi_table_header **return_table)
|
|
{
|
|
struct acpi_table_desc *table_desc;
|
|
u32 i;
|
|
|
|
ACPI_FUNCTION_TRACE(tb_get_table_ptr);
|
|
|
|
if (table_type > ACPI_TABLE_ID_MAX) {
|
|
return_ACPI_STATUS(AE_BAD_PARAMETER);
|
|
}
|
|
|
|
/* Check for instance out of range of the current table count */
|
|
|
|
if (instance > acpi_gbl_table_lists[table_type].count) {
|
|
return_ACPI_STATUS(AE_NOT_EXIST);
|
|
}
|
|
|
|
/*
|
|
* Walk the list to get the desired table
|
|
* Note: Instance is one-based
|
|
*/
|
|
table_desc = acpi_gbl_table_lists[table_type].next;
|
|
for (i = 1; i < instance; i++) {
|
|
table_desc = table_desc->next;
|
|
}
|
|
|
|
/* We are now pointing to the requested table's descriptor */
|
|
|
|
*return_table = table_desc->pointer;
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|