2005-04-17 02:20:36 +04:00
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/******************************************************************************
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*
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* Module Name: exconfig - Namespace reconfiguration (Load/Unload opcodes)
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*
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*****************************************************************************/
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/*
|
2015-02-05 10:20:45 +03:00
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* Copyright (C) 2000 - 2015, Intel Corp.
|
2005-04-17 02:20:36 +04:00
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#include <acpi/acpi.h>
|
2009-01-09 08:30:03 +03:00
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#include "accommon.h"
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#include "acinterp.h"
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#include "acnamesp.h"
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#include "actables.h"
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#include "acdispat.h"
|
2009-05-21 06:51:53 +04:00
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#include "acevents.h"
|
2012-12-31 04:05:09 +04:00
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#include "amlcode.h"
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2005-04-17 02:20:36 +04:00
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#define _COMPONENT ACPI_EXECUTER
|
2005-08-05 08:44:28 +04:00
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ACPI_MODULE_NAME("exconfig")
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2005-04-17 02:20:36 +04:00
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2005-04-19 06:49:35 +04:00
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/* Local prototypes */
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static acpi_status
|
2008-06-10 09:42:13 +04:00
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acpi_ex_add_table(u32 table_index,
|
2005-08-05 08:44:28 +04:00
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struct acpi_namespace_node *parent_node,
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union acpi_operand_object **ddb_handle);
|
2005-04-17 02:20:36 +04:00
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|
2009-05-21 06:51:53 +04:00
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static acpi_status
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acpi_ex_region_read(union acpi_operand_object *obj_desc,
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u32 length, u8 *buffer);
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|
2005-04-17 02:20:36 +04:00
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|
/*******************************************************************************
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*
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* FUNCTION: acpi_ex_add_table
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*
|
2012-07-12 05:40:10 +04:00
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* PARAMETERS: table - Pointer to raw table
|
2005-04-17 02:20:36 +04:00
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* parent_node - Where to load the table (scope)
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* ddb_handle - Where to return the table handle.
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*
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* RETURN: Status
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*
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* DESCRIPTION: Common function to Install and Load an ACPI table with a
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* returned table handle.
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*
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******************************************************************************/
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|
2005-04-19 06:49:35 +04:00
|
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static acpi_status
|
2008-06-10 09:42:13 +04:00
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acpi_ex_add_table(u32 table_index,
|
2005-08-05 08:44:28 +04:00
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struct acpi_namespace_node *parent_node,
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|
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union acpi_operand_object **ddb_handle)
|
2005-04-17 02:20:36 +04:00
|
|
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{
|
2005-08-05 08:44:28 +04:00
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|
|
union acpi_operand_object *obj_desc;
|
2010-04-27 07:32:28 +04:00
|
|
|
acpi_status status;
|
|
|
|
acpi_owner_id owner_id;
|
2005-04-17 02:20:36 +04:00
|
|
|
|
ACPI: ACPICA 20060421
Removed a device initialization optimization introduced in
20051216 where the _STA method was not run unless an _INI
was also present for the same device. This optimization
could cause problems because it could allow _INI methods
to be run within a not-present device subtree (If a
not-present device had no _INI, _STA would not be run,
the not-present status would not be discovered, and the
children of the device would be incorrectly traversed.)
Implemented a new _STA optimization where namespace
subtrees that do not contain _INI are identified and
ignored during device initialization. Selectively running
_STA can significantly improve boot time on large machines
(with assistance from Len Brown.)
Implemented support for the device initialization case
where the returned _STA flags indicate a device not-present
but functioning. In this case, _INI is not run, but the
device children are examined for presence, as per the
ACPI specification.
Implemented an additional change to the IndexField support
in order to conform to MS behavior. The value written to
the Index Register is not simply a byte offset, it is a
byte offset in units of the access width of the parent
Index Field. (Fiodor Suietov)
Defined and deployed a new OSL interface,
acpi_os_validate_address(). This interface is called during
the creation of all AML operation regions, and allows
the host OS to exert control over what addresses it will
allow the AML code to access. Operation Regions whose
addresses are disallowed will cause a runtime exception
when they are actually accessed (will not affect or abort
table loading.)
Defined and deployed a new OSL interface,
acpi_os_validate_interface(). This interface allows the host OS
to match the various "optional" interface/behavior strings
for the _OSI predefined control method as appropriate
(with assistance from Bjorn Helgaas.)
Restructured and corrected various problems in the
exception handling code paths within DsCallControlMethod
and DsTerminateControlMethod in dsmethod (with assistance
from Takayoshi Kochi.)
Modified the Linux source converter to ignore quoted string
literals while converting identifiers from mixed to lower
case. This will correct problems with the disassembler
and other areas where such strings must not be modified.
The ACPI_FUNCTION_* macros no longer require quotes around
the function name. This allows the Linux source converter
to convert the names, now that the converter ignores
quoted strings.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-22 01:15:00 +04:00
|
|
|
ACPI_FUNCTION_TRACE(ex_add_table);
|
2005-04-17 02:20:36 +04:00
|
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|
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/* Create an object to be the table handle */
|
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|
2005-08-05 08:44:28 +04:00
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obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE);
|
2005-04-17 02:20:36 +04:00
|
|
|
if (!obj_desc) {
|
2005-08-05 08:44:28 +04:00
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|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
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|
|
2005-07-30 02:15:00 +04:00
|
|
|
/* Init the table handle */
|
|
|
|
|
2009-05-21 06:32:02 +04:00
|
|
|
obj_desc->common.flags |= AOPOBJ_DATA_VALID;
|
2008-09-27 07:08:41 +04:00
|
|
|
obj_desc->reference.class = ACPI_REFCLASS_TABLE;
|
2005-07-30 02:15:00 +04:00
|
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|
*ddb_handle = obj_desc;
|
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|
2005-04-17 02:20:36 +04:00
|
|
|
/* Install the new table into the local data structures */
|
|
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|
|
2008-09-27 06:40:39 +04:00
|
|
|
obj_desc->reference.value = table_index;
|
2005-04-17 02:20:36 +04:00
|
|
|
|
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|
|
/* Add the table to the namespace */
|
|
|
|
|
2007-02-02 19:48:18 +03:00
|
|
|
status = acpi_ns_load_table(table_index, parent_node);
|
2005-08-05 08:44:28 +04:00
|
|
|
if (ACPI_FAILURE(status)) {
|
2007-02-02 19:48:18 +03:00
|
|
|
acpi_ut_remove_reference(obj_desc);
|
|
|
|
*ddb_handle = NULL;
|
2009-08-13 10:03:15 +04:00
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
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|
|
2009-08-13 10:03:15 +04:00
|
|
|
/* Execute any module-level code that was found in the table */
|
|
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|
|
acpi_ex_exit_interpreter();
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|
|
|
acpi_ns_exec_module_code_list();
|
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|
acpi_ex_enter_interpreter();
|
|
|
|
|
2012-12-19 09:36:49 +04:00
|
|
|
/*
|
|
|
|
* Update GPEs for any new _Lxx/_Exx methods. Ignore errors. The host is
|
|
|
|
* responsible for discovering any new wake GPEs by running _PRW methods
|
|
|
|
* that may have been loaded by this table.
|
|
|
|
*/
|
2010-04-27 07:32:28 +04:00
|
|
|
status = acpi_tb_get_owner_id(table_index, &owner_id);
|
|
|
|
if (ACPI_SUCCESS(status)) {
|
|
|
|
acpi_ev_update_gpes(owner_id);
|
|
|
|
}
|
|
|
|
|
|
|
|
return_ACPI_STATUS(AE_OK);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
/*******************************************************************************
|
|
|
|
*
|
|
|
|
* FUNCTION: acpi_ex_load_table_op
|
|
|
|
*
|
|
|
|
* PARAMETERS: walk_state - Current state with operands
|
|
|
|
* return_desc - Where to store the return object
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
2007-02-02 19:48:22 +03:00
|
|
|
* DESCRIPTION: Load an ACPI table from the RSDT/XSDT
|
2005-04-17 02:20:36 +04:00
|
|
|
*
|
|
|
|
******************************************************************************/
|
|
|
|
|
|
|
|
acpi_status
|
2005-08-05 08:44:28 +04:00
|
|
|
acpi_ex_load_table_op(struct acpi_walk_state *walk_state,
|
|
|
|
union acpi_operand_object **return_desc)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
2005-08-05 08:44:28 +04:00
|
|
|
acpi_status status;
|
|
|
|
union acpi_operand_object **operand = &walk_state->operands[0];
|
|
|
|
struct acpi_namespace_node *parent_node;
|
|
|
|
struct acpi_namespace_node *start_node;
|
|
|
|
struct acpi_namespace_node *parameter_node = NULL;
|
|
|
|
union acpi_operand_object *ddb_handle;
|
2007-02-02 19:48:18 +03:00
|
|
|
struct acpi_table_header *table;
|
2008-06-10 09:42:13 +04:00
|
|
|
u32 table_index;
|
2005-04-17 02:20:36 +04:00
|
|
|
|
ACPI: ACPICA 20060421
Removed a device initialization optimization introduced in
20051216 where the _STA method was not run unless an _INI
was also present for the same device. This optimization
could cause problems because it could allow _INI methods
to be run within a not-present device subtree (If a
not-present device had no _INI, _STA would not be run,
the not-present status would not be discovered, and the
children of the device would be incorrectly traversed.)
Implemented a new _STA optimization where namespace
subtrees that do not contain _INI are identified and
ignored during device initialization. Selectively running
_STA can significantly improve boot time on large machines
(with assistance from Len Brown.)
Implemented support for the device initialization case
where the returned _STA flags indicate a device not-present
but functioning. In this case, _INI is not run, but the
device children are examined for presence, as per the
ACPI specification.
Implemented an additional change to the IndexField support
in order to conform to MS behavior. The value written to
the Index Register is not simply a byte offset, it is a
byte offset in units of the access width of the parent
Index Field. (Fiodor Suietov)
Defined and deployed a new OSL interface,
acpi_os_validate_address(). This interface is called during
the creation of all AML operation regions, and allows
the host OS to exert control over what addresses it will
allow the AML code to access. Operation Regions whose
addresses are disallowed will cause a runtime exception
when they are actually accessed (will not affect or abort
table loading.)
Defined and deployed a new OSL interface,
acpi_os_validate_interface(). This interface allows the host OS
to match the various "optional" interface/behavior strings
for the _OSI predefined control method as appropriate
(with assistance from Bjorn Helgaas.)
Restructured and corrected various problems in the
exception handling code paths within DsCallControlMethod
and DsTerminateControlMethod in dsmethod (with assistance
from Takayoshi Kochi.)
Modified the Linux source converter to ignore quoted string
literals while converting identifiers from mixed to lower
case. This will correct problems with the disassembler
and other areas where such strings must not be modified.
The ACPI_FUNCTION_* macros no longer require quotes around
the function name. This allows the Linux source converter
to convert the names, now that the converter ignores
quoted strings.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-22 01:15:00 +04:00
|
|
|
ACPI_FUNCTION_TRACE(ex_load_table_op);
|
2005-04-17 02:20:36 +04:00
|
|
|
|
2007-02-02 19:48:22 +03:00
|
|
|
/* Find the ACPI table in the RSDT/XSDT */
|
2005-04-17 02:20:36 +04:00
|
|
|
|
2005-08-05 08:44:28 +04:00
|
|
|
status = acpi_tb_find_table(operand[0]->string.pointer,
|
|
|
|
operand[1]->string.pointer,
|
2007-02-02 19:48:18 +03:00
|
|
|
operand[2]->string.pointer, &table_index);
|
2005-08-05 08:44:28 +04:00
|
|
|
if (ACPI_FAILURE(status)) {
|
2005-04-17 02:20:36 +04:00
|
|
|
if (status != AE_NOT_FOUND) {
|
2005-08-05 08:44:28 +04:00
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Table not found, return an Integer=0 and AE_OK */
|
|
|
|
|
2009-11-12 04:52:45 +03:00
|
|
|
ddb_handle = acpi_ut_create_integer_object((u64) 0);
|
2005-04-17 02:20:36 +04:00
|
|
|
if (!ddb_handle) {
|
2005-08-05 08:44:28 +04:00
|
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
*return_desc = ddb_handle;
|
2005-08-05 08:44:28 +04:00
|
|
|
return_ACPI_STATUS(AE_OK);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Default nodes */
|
|
|
|
|
|
|
|
start_node = walk_state->scope_info->scope.node;
|
|
|
|
parent_node = acpi_gbl_root_node;
|
|
|
|
|
|
|
|
/* root_path (optional parameter) */
|
|
|
|
|
|
|
|
if (operand[3]->string.length > 0) {
|
|
|
|
/*
|
|
|
|
* Find the node referenced by the root_path_string. This is the
|
|
|
|
* location within the namespace where the table will be loaded.
|
|
|
|
*/
|
2005-08-05 08:44:28 +04:00
|
|
|
status =
|
2006-05-27 00:36:00 +04:00
|
|
|
acpi_ns_get_node(start_node, operand[3]->string.pointer,
|
|
|
|
ACPI_NS_SEARCH_PARENT, &parent_node);
|
2005-08-05 08:44:28 +04:00
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* parameter_path (optional parameter) */
|
|
|
|
|
|
|
|
if (operand[4]->string.length > 0) {
|
2012-12-31 04:05:09 +04:00
|
|
|
if ((operand[4]->string.pointer[0] != AML_ROOT_PREFIX) &&
|
|
|
|
(operand[4]->string.pointer[0] != AML_PARENT_PREFIX)) {
|
2005-04-17 02:20:36 +04:00
|
|
|
/*
|
|
|
|
* Path is not absolute, so it will be relative to the node
|
|
|
|
* referenced by the root_path_string (or the NS root if omitted)
|
|
|
|
*/
|
|
|
|
start_node = parent_node;
|
|
|
|
}
|
|
|
|
|
2005-04-19 06:49:35 +04:00
|
|
|
/* Find the node referenced by the parameter_path_string */
|
|
|
|
|
2005-08-05 08:44:28 +04:00
|
|
|
status =
|
2006-05-27 00:36:00 +04:00
|
|
|
acpi_ns_get_node(start_node, operand[4]->string.pointer,
|
|
|
|
ACPI_NS_SEARCH_PARENT, ¶meter_node);
|
2005-08-05 08:44:28 +04:00
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Load the table into the namespace */
|
|
|
|
|
2007-02-02 19:48:18 +03:00
|
|
|
status = acpi_ex_add_table(table_index, parent_node, &ddb_handle);
|
2005-08-05 08:44:28 +04:00
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Parameter Data (optional) */
|
|
|
|
|
|
|
|
if (parameter_node) {
|
2006-10-02 08:00:00 +04:00
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/* Store the parameter data into the optional parameter object */
|
|
|
|
|
2005-08-05 08:44:28 +04:00
|
|
|
status = acpi_ex_store(operand[5],
|
|
|
|
ACPI_CAST_PTR(union acpi_operand_object,
|
|
|
|
parameter_node),
|
|
|
|
walk_state);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
(void)acpi_ex_unload_table(ddb_handle);
|
2009-05-21 06:29:28 +04:00
|
|
|
|
|
|
|
acpi_ut_remove_reference(ddb_handle);
|
2005-08-05 08:44:28 +04:00
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2007-02-02 19:48:18 +03:00
|
|
|
status = acpi_get_table_by_index(table_index, &table);
|
|
|
|
if (ACPI_SUCCESS(status)) {
|
2010-04-27 07:32:28 +04:00
|
|
|
ACPI_INFO((AE_INFO, "Dynamic OEM Table Load:"));
|
|
|
|
acpi_tb_print_table_header(0, table);
|
2007-02-02 19:48:18 +03:00
|
|
|
}
|
2006-06-24 01:04:00 +04:00
|
|
|
|
2008-04-10 19:06:38 +04:00
|
|
|
/* Invoke table handler if present */
|
|
|
|
|
|
|
|
if (acpi_gbl_table_handler) {
|
|
|
|
(void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD, table,
|
|
|
|
acpi_gbl_table_handler_context);
|
|
|
|
}
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
*return_desc = ddb_handle;
|
2005-08-05 08:44:28 +04:00
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
|
|
|
2009-05-21 06:51:53 +04:00
|
|
|
/*******************************************************************************
|
|
|
|
*
|
|
|
|
* FUNCTION: acpi_ex_region_read
|
|
|
|
*
|
|
|
|
* PARAMETERS: obj_desc - Region descriptor
|
2012-07-12 05:40:10 +04:00
|
|
|
* length - Number of bytes to read
|
|
|
|
* buffer - Pointer to where to put the data
|
2009-05-21 06:51:53 +04:00
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: Read data from an operation region. The read starts from the
|
|
|
|
* beginning of the region.
|
|
|
|
*
|
|
|
|
******************************************************************************/
|
|
|
|
|
|
|
|
static acpi_status
|
|
|
|
acpi_ex_region_read(union acpi_operand_object *obj_desc, u32 length, u8 *buffer)
|
|
|
|
{
|
|
|
|
acpi_status status;
|
2010-01-21 05:06:32 +03:00
|
|
|
u64 value;
|
2009-05-21 06:56:52 +04:00
|
|
|
u32 region_offset = 0;
|
2009-05-21 06:51:53 +04:00
|
|
|
u32 i;
|
|
|
|
|
|
|
|
/* Bytewise reads */
|
|
|
|
|
|
|
|
for (i = 0; i < length; i++) {
|
2011-11-16 09:39:07 +04:00
|
|
|
status =
|
|
|
|
acpi_ev_address_space_dispatch(obj_desc, NULL, ACPI_READ,
|
|
|
|
region_offset, 8, &value);
|
2009-05-21 06:51:53 +04:00
|
|
|
if (ACPI_FAILURE(status)) {
|
2012-12-19 09:37:21 +04:00
|
|
|
return (status);
|
2009-05-21 06:51:53 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
*buffer = (u8)value;
|
|
|
|
buffer++;
|
2009-05-21 06:56:52 +04:00
|
|
|
region_offset++;
|
2009-05-21 06:51:53 +04:00
|
|
|
}
|
|
|
|
|
2012-12-19 09:37:21 +04:00
|
|
|
return (AE_OK);
|
2009-05-21 06:51:53 +04:00
|
|
|
}
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/*******************************************************************************
|
|
|
|
*
|
|
|
|
* FUNCTION: acpi_ex_load_op
|
|
|
|
*
|
2007-02-02 19:48:22 +03:00
|
|
|
* PARAMETERS: obj_desc - Region or Buffer/Field where the table will be
|
2005-04-17 02:20:36 +04:00
|
|
|
* obtained
|
2012-07-12 05:40:10 +04:00
|
|
|
* target - Where a handle to the table will be stored
|
2005-04-17 02:20:36 +04:00
|
|
|
* walk_state - Current state
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: Load an ACPI table from a field or operation region
|
|
|
|
*
|
2007-02-02 19:48:22 +03:00
|
|
|
* NOTE: Region Fields (Field, bank_field, index_fields) are resolved to buffer
|
|
|
|
* objects before this code is reached.
|
|
|
|
*
|
|
|
|
* If source is an operation region, it must refer to system_memory, as
|
|
|
|
* per the ACPI specification.
|
|
|
|
*
|
2005-04-17 02:20:36 +04:00
|
|
|
******************************************************************************/
|
|
|
|
|
|
|
|
acpi_status
|
2005-08-05 08:44:28 +04:00
|
|
|
acpi_ex_load_op(union acpi_operand_object *obj_desc,
|
|
|
|
union acpi_operand_object *target,
|
|
|
|
struct acpi_walk_state *walk_state)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
2005-08-05 08:44:28 +04:00
|
|
|
union acpi_operand_object *ddb_handle;
|
ACPICA: Tables: Fix table checksums verification before installation.
The original table handling code does not always verify checksums before
installing a table, this is because code to achieve this must be
implemented here and there in the redundant code blocks.
There are two stages during table initialization:
1. "INSTALLED" after acpi_tb_install_table() and acpi_tb_override_table(),
struct acpi_table_desc.Pointer is ensured to be NULL. This can be safely used
during OSPM's early boot stage.
2. "VALIDATED" after acpi_tb_validate_table(), struct acpi_table_desc.Pointer is
ensured to be not NULL. This must not be used during OSPM's early boot
stage.
This patch changes acpi_tb_add_table() into an early boot safe API to reduce
code redundancies by changing the table state that is returned by this
function from "VALIDATED" to "INSTALLED". Then the table verification
code can be done in a single place. Originally, the acpi_tb_add_table() can
only be used by dynamic table loadings that are executed after early boot
stage, it cannot be used by static table loadings that are executed in
early boot stage as:
1. The address of the table is a virtual address either maintained by
OSPMs who call acpi_load_table() or by ACPICA whenever "Load" or
"LoadTable" opcodes are executed, while during early boot stage,
physical address of the table should be used for table loading.
2. The API will ensure the state of the loaded table to be "VALIDATED"
while during early boot stage, tables maintained by root table list
should be kept as "INSTALLED".
To achieve this:
1. Rename acpi_tb_install_table() to acpi_tb_install_fixed_table() as it only
applies to DSDT/FACS installation. Rename acpi_tb_add_table() to
acpi_tb_install_non_fixed_table() as it will be applied to the installation
of the rest kinds of tables.
2. Introduce acpi_tb_install_table(), acpi_tb_install_and_override_table to collect
redudant code where their invocations actually have slight differences.
1. acpi_tb_install_table() is used to fill an struct acpi_table_desc where the
table length is known to the caller.
2. acpi_tb_install_and_override_table() is used to perform necessary
overriding before installation.
3. Change a parameter of acpi_tb_install_non_fixed_table() from struct acpi_table_desc
to acpi_physical_address to allow it to be invoked by static table
loadings. Also cleanup acpi_ex_load_op() and acpi_load_table() to accomodate
to the parameter change.
4. Invoke acpi_tb_install_non_fixed_table() for all table loadings other than
DSDT/FACS in acpi_tb_parse_root_table() to improve code maintainability
(logics are collected in the single function). Also delete useless code
from acpi_tb_parse_root_table().
5. Remove all acpi_tb_validate_table() from acpi_tb_install_non_fixed_table() and
acpi_tb_install_fixed_table() so that the table descriptor is kept in the
state of "INSTALLED" but not "VALIDATED" after returning from these
functions.
6. Introduce temporary struct acpi_table_desc (new_table_desc/old_table_desc) into
the functions to indicate a table descriptor that is not maintained by
acpi_gbl_root_table_list. Introduce acpi_tb_acquire_temporal_table() and
acpi_tb_release_temporal_table() to handle the use cases of such temporal
tables. They are only used for verified installation.
7. Introduce acpi_tb_verify_table() to validate table and verify table
checksum, also remove table checksum verification from
acpi_tb_validate_table(). Invoke acpi_tb_validate_table() in the functions
that will convert a table into "LOADED" state or invoke it from
acpi_get_table_XXX() APIs. Invoke acpi_tb_verify_table() on temporary
struct acpi_table_desc(s) that are going to be "INSTALLED".
8. Change acpi_tb_override_table() logic so that a temporary struct acpi_table_desc
will be overridden before installtion, this makes code simpler.
After applying the patch, tables are always installed after being
overridden and the table checksums are always verified before installation.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-04 08:38:57 +04:00
|
|
|
struct acpi_table_header *table_header;
|
2008-08-15 05:37:58 +04:00
|
|
|
struct acpi_table_header *table;
|
2008-06-10 09:42:13 +04:00
|
|
|
u32 table_index;
|
2007-02-02 19:48:22 +03:00
|
|
|
acpi_status status;
|
2008-04-10 19:06:39 +04:00
|
|
|
u32 length;
|
2005-04-17 02:20:36 +04:00
|
|
|
|
ACPI: ACPICA 20060421
Removed a device initialization optimization introduced in
20051216 where the _STA method was not run unless an _INI
was also present for the same device. This optimization
could cause problems because it could allow _INI methods
to be run within a not-present device subtree (If a
not-present device had no _INI, _STA would not be run,
the not-present status would not be discovered, and the
children of the device would be incorrectly traversed.)
Implemented a new _STA optimization where namespace
subtrees that do not contain _INI are identified and
ignored during device initialization. Selectively running
_STA can significantly improve boot time on large machines
(with assistance from Len Brown.)
Implemented support for the device initialization case
where the returned _STA flags indicate a device not-present
but functioning. In this case, _INI is not run, but the
device children are examined for presence, as per the
ACPI specification.
Implemented an additional change to the IndexField support
in order to conform to MS behavior. The value written to
the Index Register is not simply a byte offset, it is a
byte offset in units of the access width of the parent
Index Field. (Fiodor Suietov)
Defined and deployed a new OSL interface,
acpi_os_validate_address(). This interface is called during
the creation of all AML operation regions, and allows
the host OS to exert control over what addresses it will
allow the AML code to access. Operation Regions whose
addresses are disallowed will cause a runtime exception
when they are actually accessed (will not affect or abort
table loading.)
Defined and deployed a new OSL interface,
acpi_os_validate_interface(). This interface allows the host OS
to match the various "optional" interface/behavior strings
for the _OSI predefined control method as appropriate
(with assistance from Bjorn Helgaas.)
Restructured and corrected various problems in the
exception handling code paths within DsCallControlMethod
and DsTerminateControlMethod in dsmethod (with assistance
from Takayoshi Kochi.)
Modified the Linux source converter to ignore quoted string
literals while converting identifiers from mixed to lower
case. This will correct problems with the disassembler
and other areas where such strings must not be modified.
The ACPI_FUNCTION_* macros no longer require quotes around
the function name. This allows the Linux source converter
to convert the names, now that the converter ignores
quoted strings.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-22 01:15:00 +04:00
|
|
|
ACPI_FUNCTION_TRACE(ex_load_op);
|
2005-04-17 02:20:36 +04:00
|
|
|
|
2007-02-02 19:48:22 +03:00
|
|
|
/* Source Object can be either an op_region or a Buffer/Field */
|
|
|
|
|
2009-02-18 09:44:03 +03:00
|
|
|
switch (obj_desc->common.type) {
|
2005-04-17 02:20:36 +04:00
|
|
|
case ACPI_TYPE_REGION:
|
|
|
|
|
2008-08-15 05:37:58 +04:00
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
|
|
|
|
"Load table from Region %p\n", obj_desc));
|
2008-04-10 19:06:39 +04:00
|
|
|
|
2007-02-02 19:48:22 +03:00
|
|
|
/* Region must be system_memory (from ACPI spec) */
|
|
|
|
|
|
|
|
if (obj_desc->region.space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) {
|
|
|
|
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
|
|
|
|
}
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/*
|
2015-12-29 08:54:36 +03:00
|
|
|
* If the Region Address and Length have not been previously
|
|
|
|
* evaluated, evaluate them now and save the results.
|
2005-04-17 02:20:36 +04:00
|
|
|
*/
|
|
|
|
if (!(obj_desc->common.flags & AOPOBJ_DATA_VALID)) {
|
2005-08-05 08:44:28 +04:00
|
|
|
status = acpi_ds_get_region_arguments(obj_desc);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-05-21 06:51:53 +04:00
|
|
|
/* Get the table header first so we can get the table length */
|
|
|
|
|
ACPICA: Tables: Fix table checksums verification before installation.
The original table handling code does not always verify checksums before
installing a table, this is because code to achieve this must be
implemented here and there in the redundant code blocks.
There are two stages during table initialization:
1. "INSTALLED" after acpi_tb_install_table() and acpi_tb_override_table(),
struct acpi_table_desc.Pointer is ensured to be NULL. This can be safely used
during OSPM's early boot stage.
2. "VALIDATED" after acpi_tb_validate_table(), struct acpi_table_desc.Pointer is
ensured to be not NULL. This must not be used during OSPM's early boot
stage.
This patch changes acpi_tb_add_table() into an early boot safe API to reduce
code redundancies by changing the table state that is returned by this
function from "VALIDATED" to "INSTALLED". Then the table verification
code can be done in a single place. Originally, the acpi_tb_add_table() can
only be used by dynamic table loadings that are executed after early boot
stage, it cannot be used by static table loadings that are executed in
early boot stage as:
1. The address of the table is a virtual address either maintained by
OSPMs who call acpi_load_table() or by ACPICA whenever "Load" or
"LoadTable" opcodes are executed, while during early boot stage,
physical address of the table should be used for table loading.
2. The API will ensure the state of the loaded table to be "VALIDATED"
while during early boot stage, tables maintained by root table list
should be kept as "INSTALLED".
To achieve this:
1. Rename acpi_tb_install_table() to acpi_tb_install_fixed_table() as it only
applies to DSDT/FACS installation. Rename acpi_tb_add_table() to
acpi_tb_install_non_fixed_table() as it will be applied to the installation
of the rest kinds of tables.
2. Introduce acpi_tb_install_table(), acpi_tb_install_and_override_table to collect
redudant code where their invocations actually have slight differences.
1. acpi_tb_install_table() is used to fill an struct acpi_table_desc where the
table length is known to the caller.
2. acpi_tb_install_and_override_table() is used to perform necessary
overriding before installation.
3. Change a parameter of acpi_tb_install_non_fixed_table() from struct acpi_table_desc
to acpi_physical_address to allow it to be invoked by static table
loadings. Also cleanup acpi_ex_load_op() and acpi_load_table() to accomodate
to the parameter change.
4. Invoke acpi_tb_install_non_fixed_table() for all table loadings other than
DSDT/FACS in acpi_tb_parse_root_table() to improve code maintainability
(logics are collected in the single function). Also delete useless code
from acpi_tb_parse_root_table().
5. Remove all acpi_tb_validate_table() from acpi_tb_install_non_fixed_table() and
acpi_tb_install_fixed_table() so that the table descriptor is kept in the
state of "INSTALLED" but not "VALIDATED" after returning from these
functions.
6. Introduce temporary struct acpi_table_desc (new_table_desc/old_table_desc) into
the functions to indicate a table descriptor that is not maintained by
acpi_gbl_root_table_list. Introduce acpi_tb_acquire_temporal_table() and
acpi_tb_release_temporal_table() to handle the use cases of such temporal
tables. They are only used for verified installation.
7. Introduce acpi_tb_verify_table() to validate table and verify table
checksum, also remove table checksum verification from
acpi_tb_validate_table(). Invoke acpi_tb_validate_table() in the functions
that will convert a table into "LOADED" state or invoke it from
acpi_get_table_XXX() APIs. Invoke acpi_tb_verify_table() on temporary
struct acpi_table_desc(s) that are going to be "INSTALLED".
8. Change acpi_tb_override_table() logic so that a temporary struct acpi_table_desc
will be overridden before installtion, this makes code simpler.
After applying the patch, tables are always installed after being
overridden and the table checksums are always verified before installation.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-04 08:38:57 +04:00
|
|
|
table_header = ACPI_ALLOCATE(sizeof(struct acpi_table_header));
|
|
|
|
if (!table_header) {
|
2008-08-15 05:37:58 +04:00
|
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
|
|
|
}
|
|
|
|
|
2009-05-21 06:51:53 +04:00
|
|
|
status =
|
|
|
|
acpi_ex_region_read(obj_desc,
|
|
|
|
sizeof(struct acpi_table_header),
|
ACPICA: Tables: Fix table checksums verification before installation.
The original table handling code does not always verify checksums before
installing a table, this is because code to achieve this must be
implemented here and there in the redundant code blocks.
There are two stages during table initialization:
1. "INSTALLED" after acpi_tb_install_table() and acpi_tb_override_table(),
struct acpi_table_desc.Pointer is ensured to be NULL. This can be safely used
during OSPM's early boot stage.
2. "VALIDATED" after acpi_tb_validate_table(), struct acpi_table_desc.Pointer is
ensured to be not NULL. This must not be used during OSPM's early boot
stage.
This patch changes acpi_tb_add_table() into an early boot safe API to reduce
code redundancies by changing the table state that is returned by this
function from "VALIDATED" to "INSTALLED". Then the table verification
code can be done in a single place. Originally, the acpi_tb_add_table() can
only be used by dynamic table loadings that are executed after early boot
stage, it cannot be used by static table loadings that are executed in
early boot stage as:
1. The address of the table is a virtual address either maintained by
OSPMs who call acpi_load_table() or by ACPICA whenever "Load" or
"LoadTable" opcodes are executed, while during early boot stage,
physical address of the table should be used for table loading.
2. The API will ensure the state of the loaded table to be "VALIDATED"
while during early boot stage, tables maintained by root table list
should be kept as "INSTALLED".
To achieve this:
1. Rename acpi_tb_install_table() to acpi_tb_install_fixed_table() as it only
applies to DSDT/FACS installation. Rename acpi_tb_add_table() to
acpi_tb_install_non_fixed_table() as it will be applied to the installation
of the rest kinds of tables.
2. Introduce acpi_tb_install_table(), acpi_tb_install_and_override_table to collect
redudant code where their invocations actually have slight differences.
1. acpi_tb_install_table() is used to fill an struct acpi_table_desc where the
table length is known to the caller.
2. acpi_tb_install_and_override_table() is used to perform necessary
overriding before installation.
3. Change a parameter of acpi_tb_install_non_fixed_table() from struct acpi_table_desc
to acpi_physical_address to allow it to be invoked by static table
loadings. Also cleanup acpi_ex_load_op() and acpi_load_table() to accomodate
to the parameter change.
4. Invoke acpi_tb_install_non_fixed_table() for all table loadings other than
DSDT/FACS in acpi_tb_parse_root_table() to improve code maintainability
(logics are collected in the single function). Also delete useless code
from acpi_tb_parse_root_table().
5. Remove all acpi_tb_validate_table() from acpi_tb_install_non_fixed_table() and
acpi_tb_install_fixed_table() so that the table descriptor is kept in the
state of "INSTALLED" but not "VALIDATED" after returning from these
functions.
6. Introduce temporary struct acpi_table_desc (new_table_desc/old_table_desc) into
the functions to indicate a table descriptor that is not maintained by
acpi_gbl_root_table_list. Introduce acpi_tb_acquire_temporal_table() and
acpi_tb_release_temporal_table() to handle the use cases of such temporal
tables. They are only used for verified installation.
7. Introduce acpi_tb_verify_table() to validate table and verify table
checksum, also remove table checksum verification from
acpi_tb_validate_table(). Invoke acpi_tb_validate_table() in the functions
that will convert a table into "LOADED" state or invoke it from
acpi_get_table_XXX() APIs. Invoke acpi_tb_verify_table() on temporary
struct acpi_table_desc(s) that are going to be "INSTALLED".
8. Change acpi_tb_override_table() logic so that a temporary struct acpi_table_desc
will be overridden before installtion, this makes code simpler.
After applying the patch, tables are always installed after being
overridden and the table checksums are always verified before installation.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-04 08:38:57 +04:00
|
|
|
ACPI_CAST_PTR(u8, table_header));
|
|
|
|
length = table_header->length;
|
|
|
|
ACPI_FREE(table_header);
|
2009-05-21 06:51:53 +04:00
|
|
|
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
|
|
|
}
|
2008-08-15 05:37:58 +04:00
|
|
|
|
|
|
|
/* Must have at least an ACPI table header */
|
|
|
|
|
|
|
|
if (length < sizeof(struct acpi_table_header)) {
|
|
|
|
return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2009-05-21 06:51:53 +04:00
|
|
|
* The original implementation simply mapped the table, with no copy.
|
|
|
|
* However, the memory region is not guaranteed to remain stable and
|
|
|
|
* we must copy the table to a local buffer. For example, the memory
|
|
|
|
* region is corrupted after suspend on some machines. Dynamically
|
|
|
|
* loaded tables are usually small, so this overhead is minimal.
|
|
|
|
*
|
|
|
|
* The latest implementation (5/2009) does not use a mapping at all.
|
|
|
|
* We use the low-level operation region interface to read the table
|
|
|
|
* instead of the obvious optimization of using a direct mapping.
|
|
|
|
* This maintains a consistent use of operation regions across the
|
|
|
|
* entire subsystem. This is important if additional processing must
|
|
|
|
* be performed in the (possibly user-installed) operation region
|
|
|
|
* handler. For example, acpi_exec and ASLTS depend on this.
|
2008-04-10 19:06:39 +04:00
|
|
|
*/
|
2008-08-15 05:37:58 +04:00
|
|
|
|
|
|
|
/* Allocate a buffer for the table */
|
|
|
|
|
ACPICA: Tables: Fix table checksums verification before installation.
The original table handling code does not always verify checksums before
installing a table, this is because code to achieve this must be
implemented here and there in the redundant code blocks.
There are two stages during table initialization:
1. "INSTALLED" after acpi_tb_install_table() and acpi_tb_override_table(),
struct acpi_table_desc.Pointer is ensured to be NULL. This can be safely used
during OSPM's early boot stage.
2. "VALIDATED" after acpi_tb_validate_table(), struct acpi_table_desc.Pointer is
ensured to be not NULL. This must not be used during OSPM's early boot
stage.
This patch changes acpi_tb_add_table() into an early boot safe API to reduce
code redundancies by changing the table state that is returned by this
function from "VALIDATED" to "INSTALLED". Then the table verification
code can be done in a single place. Originally, the acpi_tb_add_table() can
only be used by dynamic table loadings that are executed after early boot
stage, it cannot be used by static table loadings that are executed in
early boot stage as:
1. The address of the table is a virtual address either maintained by
OSPMs who call acpi_load_table() or by ACPICA whenever "Load" or
"LoadTable" opcodes are executed, while during early boot stage,
physical address of the table should be used for table loading.
2. The API will ensure the state of the loaded table to be "VALIDATED"
while during early boot stage, tables maintained by root table list
should be kept as "INSTALLED".
To achieve this:
1. Rename acpi_tb_install_table() to acpi_tb_install_fixed_table() as it only
applies to DSDT/FACS installation. Rename acpi_tb_add_table() to
acpi_tb_install_non_fixed_table() as it will be applied to the installation
of the rest kinds of tables.
2. Introduce acpi_tb_install_table(), acpi_tb_install_and_override_table to collect
redudant code where their invocations actually have slight differences.
1. acpi_tb_install_table() is used to fill an struct acpi_table_desc where the
table length is known to the caller.
2. acpi_tb_install_and_override_table() is used to perform necessary
overriding before installation.
3. Change a parameter of acpi_tb_install_non_fixed_table() from struct acpi_table_desc
to acpi_physical_address to allow it to be invoked by static table
loadings. Also cleanup acpi_ex_load_op() and acpi_load_table() to accomodate
to the parameter change.
4. Invoke acpi_tb_install_non_fixed_table() for all table loadings other than
DSDT/FACS in acpi_tb_parse_root_table() to improve code maintainability
(logics are collected in the single function). Also delete useless code
from acpi_tb_parse_root_table().
5. Remove all acpi_tb_validate_table() from acpi_tb_install_non_fixed_table() and
acpi_tb_install_fixed_table() so that the table descriptor is kept in the
state of "INSTALLED" but not "VALIDATED" after returning from these
functions.
6. Introduce temporary struct acpi_table_desc (new_table_desc/old_table_desc) into
the functions to indicate a table descriptor that is not maintained by
acpi_gbl_root_table_list. Introduce acpi_tb_acquire_temporal_table() and
acpi_tb_release_temporal_table() to handle the use cases of such temporal
tables. They are only used for verified installation.
7. Introduce acpi_tb_verify_table() to validate table and verify table
checksum, also remove table checksum verification from
acpi_tb_validate_table(). Invoke acpi_tb_validate_table() in the functions
that will convert a table into "LOADED" state or invoke it from
acpi_get_table_XXX() APIs. Invoke acpi_tb_verify_table() on temporary
struct acpi_table_desc(s) that are going to be "INSTALLED".
8. Change acpi_tb_override_table() logic so that a temporary struct acpi_table_desc
will be overridden before installtion, this makes code simpler.
After applying the patch, tables are always installed after being
overridden and the table checksums are always verified before installation.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-04 08:38:57 +04:00
|
|
|
table = ACPI_ALLOCATE(length);
|
|
|
|
if (!table) {
|
2008-08-15 05:37:58 +04:00
|
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
|
|
|
}
|
|
|
|
|
2009-05-21 06:51:53 +04:00
|
|
|
/* Read the entire table */
|
2008-08-15 05:37:58 +04:00
|
|
|
|
2009-05-21 06:51:53 +04:00
|
|
|
status = acpi_ex_region_read(obj_desc, length,
|
ACPICA: Tables: Fix table checksums verification before installation.
The original table handling code does not always verify checksums before
installing a table, this is because code to achieve this must be
implemented here and there in the redundant code blocks.
There are two stages during table initialization:
1. "INSTALLED" after acpi_tb_install_table() and acpi_tb_override_table(),
struct acpi_table_desc.Pointer is ensured to be NULL. This can be safely used
during OSPM's early boot stage.
2. "VALIDATED" after acpi_tb_validate_table(), struct acpi_table_desc.Pointer is
ensured to be not NULL. This must not be used during OSPM's early boot
stage.
This patch changes acpi_tb_add_table() into an early boot safe API to reduce
code redundancies by changing the table state that is returned by this
function from "VALIDATED" to "INSTALLED". Then the table verification
code can be done in a single place. Originally, the acpi_tb_add_table() can
only be used by dynamic table loadings that are executed after early boot
stage, it cannot be used by static table loadings that are executed in
early boot stage as:
1. The address of the table is a virtual address either maintained by
OSPMs who call acpi_load_table() or by ACPICA whenever "Load" or
"LoadTable" opcodes are executed, while during early boot stage,
physical address of the table should be used for table loading.
2. The API will ensure the state of the loaded table to be "VALIDATED"
while during early boot stage, tables maintained by root table list
should be kept as "INSTALLED".
To achieve this:
1. Rename acpi_tb_install_table() to acpi_tb_install_fixed_table() as it only
applies to DSDT/FACS installation. Rename acpi_tb_add_table() to
acpi_tb_install_non_fixed_table() as it will be applied to the installation
of the rest kinds of tables.
2. Introduce acpi_tb_install_table(), acpi_tb_install_and_override_table to collect
redudant code where their invocations actually have slight differences.
1. acpi_tb_install_table() is used to fill an struct acpi_table_desc where the
table length is known to the caller.
2. acpi_tb_install_and_override_table() is used to perform necessary
overriding before installation.
3. Change a parameter of acpi_tb_install_non_fixed_table() from struct acpi_table_desc
to acpi_physical_address to allow it to be invoked by static table
loadings. Also cleanup acpi_ex_load_op() and acpi_load_table() to accomodate
to the parameter change.
4. Invoke acpi_tb_install_non_fixed_table() for all table loadings other than
DSDT/FACS in acpi_tb_parse_root_table() to improve code maintainability
(logics are collected in the single function). Also delete useless code
from acpi_tb_parse_root_table().
5. Remove all acpi_tb_validate_table() from acpi_tb_install_non_fixed_table() and
acpi_tb_install_fixed_table() so that the table descriptor is kept in the
state of "INSTALLED" but not "VALIDATED" after returning from these
functions.
6. Introduce temporary struct acpi_table_desc (new_table_desc/old_table_desc) into
the functions to indicate a table descriptor that is not maintained by
acpi_gbl_root_table_list. Introduce acpi_tb_acquire_temporal_table() and
acpi_tb_release_temporal_table() to handle the use cases of such temporal
tables. They are only used for verified installation.
7. Introduce acpi_tb_verify_table() to validate table and verify table
checksum, also remove table checksum verification from
acpi_tb_validate_table(). Invoke acpi_tb_validate_table() in the functions
that will convert a table into "LOADED" state or invoke it from
acpi_get_table_XXX() APIs. Invoke acpi_tb_verify_table() on temporary
struct acpi_table_desc(s) that are going to be "INSTALLED".
8. Change acpi_tb_override_table() logic so that a temporary struct acpi_table_desc
will be overridden before installtion, this makes code simpler.
After applying the patch, tables are always installed after being
overridden and the table checksums are always verified before installation.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-04 08:38:57 +04:00
|
|
|
ACPI_CAST_PTR(u8, table));
|
2009-05-21 06:51:53 +04:00
|
|
|
if (ACPI_FAILURE(status)) {
|
ACPICA: Tables: Fix table checksums verification before installation.
The original table handling code does not always verify checksums before
installing a table, this is because code to achieve this must be
implemented here and there in the redundant code blocks.
There are two stages during table initialization:
1. "INSTALLED" after acpi_tb_install_table() and acpi_tb_override_table(),
struct acpi_table_desc.Pointer is ensured to be NULL. This can be safely used
during OSPM's early boot stage.
2. "VALIDATED" after acpi_tb_validate_table(), struct acpi_table_desc.Pointer is
ensured to be not NULL. This must not be used during OSPM's early boot
stage.
This patch changes acpi_tb_add_table() into an early boot safe API to reduce
code redundancies by changing the table state that is returned by this
function from "VALIDATED" to "INSTALLED". Then the table verification
code can be done in a single place. Originally, the acpi_tb_add_table() can
only be used by dynamic table loadings that are executed after early boot
stage, it cannot be used by static table loadings that are executed in
early boot stage as:
1. The address of the table is a virtual address either maintained by
OSPMs who call acpi_load_table() or by ACPICA whenever "Load" or
"LoadTable" opcodes are executed, while during early boot stage,
physical address of the table should be used for table loading.
2. The API will ensure the state of the loaded table to be "VALIDATED"
while during early boot stage, tables maintained by root table list
should be kept as "INSTALLED".
To achieve this:
1. Rename acpi_tb_install_table() to acpi_tb_install_fixed_table() as it only
applies to DSDT/FACS installation. Rename acpi_tb_add_table() to
acpi_tb_install_non_fixed_table() as it will be applied to the installation
of the rest kinds of tables.
2. Introduce acpi_tb_install_table(), acpi_tb_install_and_override_table to collect
redudant code where their invocations actually have slight differences.
1. acpi_tb_install_table() is used to fill an struct acpi_table_desc where the
table length is known to the caller.
2. acpi_tb_install_and_override_table() is used to perform necessary
overriding before installation.
3. Change a parameter of acpi_tb_install_non_fixed_table() from struct acpi_table_desc
to acpi_physical_address to allow it to be invoked by static table
loadings. Also cleanup acpi_ex_load_op() and acpi_load_table() to accomodate
to the parameter change.
4. Invoke acpi_tb_install_non_fixed_table() for all table loadings other than
DSDT/FACS in acpi_tb_parse_root_table() to improve code maintainability
(logics are collected in the single function). Also delete useless code
from acpi_tb_parse_root_table().
5. Remove all acpi_tb_validate_table() from acpi_tb_install_non_fixed_table() and
acpi_tb_install_fixed_table() so that the table descriptor is kept in the
state of "INSTALLED" but not "VALIDATED" after returning from these
functions.
6. Introduce temporary struct acpi_table_desc (new_table_desc/old_table_desc) into
the functions to indicate a table descriptor that is not maintained by
acpi_gbl_root_table_list. Introduce acpi_tb_acquire_temporal_table() and
acpi_tb_release_temporal_table() to handle the use cases of such temporal
tables. They are only used for verified installation.
7. Introduce acpi_tb_verify_table() to validate table and verify table
checksum, also remove table checksum verification from
acpi_tb_validate_table(). Invoke acpi_tb_validate_table() in the functions
that will convert a table into "LOADED" state or invoke it from
acpi_get_table_XXX() APIs. Invoke acpi_tb_verify_table() on temporary
struct acpi_table_desc(s) that are going to be "INSTALLED".
8. Change acpi_tb_override_table() logic so that a temporary struct acpi_table_desc
will be overridden before installtion, this makes code simpler.
After applying the patch, tables are always installed after being
overridden and the table checksums are always verified before installation.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-04 08:38:57 +04:00
|
|
|
ACPI_FREE(table);
|
2009-05-21 06:51:53 +04:00
|
|
|
return_ACPI_STATUS(status);
|
2008-08-15 05:37:58 +04:00
|
|
|
}
|
2005-04-17 02:20:36 +04:00
|
|
|
break;
|
|
|
|
|
2007-02-02 19:48:22 +03:00
|
|
|
case ACPI_TYPE_BUFFER: /* Buffer or resolved region_field */
|
2005-04-17 02:20:36 +04:00
|
|
|
|
2007-02-02 19:48:22 +03:00
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
|
2008-08-15 05:37:58 +04:00
|
|
|
"Load table from Buffer or Field %p\n",
|
|
|
|
obj_desc));
|
2008-04-10 19:06:39 +04:00
|
|
|
|
|
|
|
/* Must have at least an ACPI table header */
|
|
|
|
|
2008-08-15 05:37:58 +04:00
|
|
|
if (obj_desc->buffer.length < sizeof(struct acpi_table_header)) {
|
2008-04-10 19:06:39 +04:00
|
|
|
return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
|
|
|
|
}
|
|
|
|
|
2008-08-15 05:37:58 +04:00
|
|
|
/* Get the actual table length from the table header */
|
2008-04-10 19:06:39 +04:00
|
|
|
|
ACPICA: Tables: Fix table checksums verification before installation.
The original table handling code does not always verify checksums before
installing a table, this is because code to achieve this must be
implemented here and there in the redundant code blocks.
There are two stages during table initialization:
1. "INSTALLED" after acpi_tb_install_table() and acpi_tb_override_table(),
struct acpi_table_desc.Pointer is ensured to be NULL. This can be safely used
during OSPM's early boot stage.
2. "VALIDATED" after acpi_tb_validate_table(), struct acpi_table_desc.Pointer is
ensured to be not NULL. This must not be used during OSPM's early boot
stage.
This patch changes acpi_tb_add_table() into an early boot safe API to reduce
code redundancies by changing the table state that is returned by this
function from "VALIDATED" to "INSTALLED". Then the table verification
code can be done in a single place. Originally, the acpi_tb_add_table() can
only be used by dynamic table loadings that are executed after early boot
stage, it cannot be used by static table loadings that are executed in
early boot stage as:
1. The address of the table is a virtual address either maintained by
OSPMs who call acpi_load_table() or by ACPICA whenever "Load" or
"LoadTable" opcodes are executed, while during early boot stage,
physical address of the table should be used for table loading.
2. The API will ensure the state of the loaded table to be "VALIDATED"
while during early boot stage, tables maintained by root table list
should be kept as "INSTALLED".
To achieve this:
1. Rename acpi_tb_install_table() to acpi_tb_install_fixed_table() as it only
applies to DSDT/FACS installation. Rename acpi_tb_add_table() to
acpi_tb_install_non_fixed_table() as it will be applied to the installation
of the rest kinds of tables.
2. Introduce acpi_tb_install_table(), acpi_tb_install_and_override_table to collect
redudant code where their invocations actually have slight differences.
1. acpi_tb_install_table() is used to fill an struct acpi_table_desc where the
table length is known to the caller.
2. acpi_tb_install_and_override_table() is used to perform necessary
overriding before installation.
3. Change a parameter of acpi_tb_install_non_fixed_table() from struct acpi_table_desc
to acpi_physical_address to allow it to be invoked by static table
loadings. Also cleanup acpi_ex_load_op() and acpi_load_table() to accomodate
to the parameter change.
4. Invoke acpi_tb_install_non_fixed_table() for all table loadings other than
DSDT/FACS in acpi_tb_parse_root_table() to improve code maintainability
(logics are collected in the single function). Also delete useless code
from acpi_tb_parse_root_table().
5. Remove all acpi_tb_validate_table() from acpi_tb_install_non_fixed_table() and
acpi_tb_install_fixed_table() so that the table descriptor is kept in the
state of "INSTALLED" but not "VALIDATED" after returning from these
functions.
6. Introduce temporary struct acpi_table_desc (new_table_desc/old_table_desc) into
the functions to indicate a table descriptor that is not maintained by
acpi_gbl_root_table_list. Introduce acpi_tb_acquire_temporal_table() and
acpi_tb_release_temporal_table() to handle the use cases of such temporal
tables. They are only used for verified installation.
7. Introduce acpi_tb_verify_table() to validate table and verify table
checksum, also remove table checksum verification from
acpi_tb_validate_table(). Invoke acpi_tb_validate_table() in the functions
that will convert a table into "LOADED" state or invoke it from
acpi_get_table_XXX() APIs. Invoke acpi_tb_verify_table() on temporary
struct acpi_table_desc(s) that are going to be "INSTALLED".
8. Change acpi_tb_override_table() logic so that a temporary struct acpi_table_desc
will be overridden before installtion, this makes code simpler.
After applying the patch, tables are always installed after being
overridden and the table checksums are always verified before installation.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-04 08:38:57 +04:00
|
|
|
table_header =
|
2008-08-15 05:37:58 +04:00
|
|
|
ACPI_CAST_PTR(struct acpi_table_header,
|
|
|
|
obj_desc->buffer.pointer);
|
ACPICA: Tables: Fix table checksums verification before installation.
The original table handling code does not always verify checksums before
installing a table, this is because code to achieve this must be
implemented here and there in the redundant code blocks.
There are two stages during table initialization:
1. "INSTALLED" after acpi_tb_install_table() and acpi_tb_override_table(),
struct acpi_table_desc.Pointer is ensured to be NULL. This can be safely used
during OSPM's early boot stage.
2. "VALIDATED" after acpi_tb_validate_table(), struct acpi_table_desc.Pointer is
ensured to be not NULL. This must not be used during OSPM's early boot
stage.
This patch changes acpi_tb_add_table() into an early boot safe API to reduce
code redundancies by changing the table state that is returned by this
function from "VALIDATED" to "INSTALLED". Then the table verification
code can be done in a single place. Originally, the acpi_tb_add_table() can
only be used by dynamic table loadings that are executed after early boot
stage, it cannot be used by static table loadings that are executed in
early boot stage as:
1. The address of the table is a virtual address either maintained by
OSPMs who call acpi_load_table() or by ACPICA whenever "Load" or
"LoadTable" opcodes are executed, while during early boot stage,
physical address of the table should be used for table loading.
2. The API will ensure the state of the loaded table to be "VALIDATED"
while during early boot stage, tables maintained by root table list
should be kept as "INSTALLED".
To achieve this:
1. Rename acpi_tb_install_table() to acpi_tb_install_fixed_table() as it only
applies to DSDT/FACS installation. Rename acpi_tb_add_table() to
acpi_tb_install_non_fixed_table() as it will be applied to the installation
of the rest kinds of tables.
2. Introduce acpi_tb_install_table(), acpi_tb_install_and_override_table to collect
redudant code where their invocations actually have slight differences.
1. acpi_tb_install_table() is used to fill an struct acpi_table_desc where the
table length is known to the caller.
2. acpi_tb_install_and_override_table() is used to perform necessary
overriding before installation.
3. Change a parameter of acpi_tb_install_non_fixed_table() from struct acpi_table_desc
to acpi_physical_address to allow it to be invoked by static table
loadings. Also cleanup acpi_ex_load_op() and acpi_load_table() to accomodate
to the parameter change.
4. Invoke acpi_tb_install_non_fixed_table() for all table loadings other than
DSDT/FACS in acpi_tb_parse_root_table() to improve code maintainability
(logics are collected in the single function). Also delete useless code
from acpi_tb_parse_root_table().
5. Remove all acpi_tb_validate_table() from acpi_tb_install_non_fixed_table() and
acpi_tb_install_fixed_table() so that the table descriptor is kept in the
state of "INSTALLED" but not "VALIDATED" after returning from these
functions.
6. Introduce temporary struct acpi_table_desc (new_table_desc/old_table_desc) into
the functions to indicate a table descriptor that is not maintained by
acpi_gbl_root_table_list. Introduce acpi_tb_acquire_temporal_table() and
acpi_tb_release_temporal_table() to handle the use cases of such temporal
tables. They are only used for verified installation.
7. Introduce acpi_tb_verify_table() to validate table and verify table
checksum, also remove table checksum verification from
acpi_tb_validate_table(). Invoke acpi_tb_validate_table() in the functions
that will convert a table into "LOADED" state or invoke it from
acpi_get_table_XXX() APIs. Invoke acpi_tb_verify_table() on temporary
struct acpi_table_desc(s) that are going to be "INSTALLED".
8. Change acpi_tb_override_table() logic so that a temporary struct acpi_table_desc
will be overridden before installtion, this makes code simpler.
After applying the patch, tables are always installed after being
overridden and the table checksums are always verified before installation.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-04 08:38:57 +04:00
|
|
|
length = table_header->length;
|
2008-08-15 05:37:58 +04:00
|
|
|
|
|
|
|
/* Table cannot extend beyond the buffer */
|
|
|
|
|
|
|
|
if (length > obj_desc->buffer.length) {
|
|
|
|
return_ACPI_STATUS(AE_AML_BUFFER_LIMIT);
|
|
|
|
}
|
|
|
|
if (length < sizeof(struct acpi_table_header)) {
|
|
|
|
return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
|
2008-04-10 19:06:39 +04:00
|
|
|
}
|
|
|
|
|
2008-04-10 19:06:39 +04:00
|
|
|
/*
|
2015-12-29 08:54:36 +03:00
|
|
|
* Copy the table from the buffer because the buffer could be
|
|
|
|
* modified or even deleted in the future
|
2008-04-10 19:06:39 +04:00
|
|
|
*/
|
ACPICA: Tables: Fix table checksums verification before installation.
The original table handling code does not always verify checksums before
installing a table, this is because code to achieve this must be
implemented here and there in the redundant code blocks.
There are two stages during table initialization:
1. "INSTALLED" after acpi_tb_install_table() and acpi_tb_override_table(),
struct acpi_table_desc.Pointer is ensured to be NULL. This can be safely used
during OSPM's early boot stage.
2. "VALIDATED" after acpi_tb_validate_table(), struct acpi_table_desc.Pointer is
ensured to be not NULL. This must not be used during OSPM's early boot
stage.
This patch changes acpi_tb_add_table() into an early boot safe API to reduce
code redundancies by changing the table state that is returned by this
function from "VALIDATED" to "INSTALLED". Then the table verification
code can be done in a single place. Originally, the acpi_tb_add_table() can
only be used by dynamic table loadings that are executed after early boot
stage, it cannot be used by static table loadings that are executed in
early boot stage as:
1. The address of the table is a virtual address either maintained by
OSPMs who call acpi_load_table() or by ACPICA whenever "Load" or
"LoadTable" opcodes are executed, while during early boot stage,
physical address of the table should be used for table loading.
2. The API will ensure the state of the loaded table to be "VALIDATED"
while during early boot stage, tables maintained by root table list
should be kept as "INSTALLED".
To achieve this:
1. Rename acpi_tb_install_table() to acpi_tb_install_fixed_table() as it only
applies to DSDT/FACS installation. Rename acpi_tb_add_table() to
acpi_tb_install_non_fixed_table() as it will be applied to the installation
of the rest kinds of tables.
2. Introduce acpi_tb_install_table(), acpi_tb_install_and_override_table to collect
redudant code where their invocations actually have slight differences.
1. acpi_tb_install_table() is used to fill an struct acpi_table_desc where the
table length is known to the caller.
2. acpi_tb_install_and_override_table() is used to perform necessary
overriding before installation.
3. Change a parameter of acpi_tb_install_non_fixed_table() from struct acpi_table_desc
to acpi_physical_address to allow it to be invoked by static table
loadings. Also cleanup acpi_ex_load_op() and acpi_load_table() to accomodate
to the parameter change.
4. Invoke acpi_tb_install_non_fixed_table() for all table loadings other than
DSDT/FACS in acpi_tb_parse_root_table() to improve code maintainability
(logics are collected in the single function). Also delete useless code
from acpi_tb_parse_root_table().
5. Remove all acpi_tb_validate_table() from acpi_tb_install_non_fixed_table() and
acpi_tb_install_fixed_table() so that the table descriptor is kept in the
state of "INSTALLED" but not "VALIDATED" after returning from these
functions.
6. Introduce temporary struct acpi_table_desc (new_table_desc/old_table_desc) into
the functions to indicate a table descriptor that is not maintained by
acpi_gbl_root_table_list. Introduce acpi_tb_acquire_temporal_table() and
acpi_tb_release_temporal_table() to handle the use cases of such temporal
tables. They are only used for verified installation.
7. Introduce acpi_tb_verify_table() to validate table and verify table
checksum, also remove table checksum verification from
acpi_tb_validate_table(). Invoke acpi_tb_validate_table() in the functions
that will convert a table into "LOADED" state or invoke it from
acpi_get_table_XXX() APIs. Invoke acpi_tb_verify_table() on temporary
struct acpi_table_desc(s) that are going to be "INSTALLED".
8. Change acpi_tb_override_table() logic so that a temporary struct acpi_table_desc
will be overridden before installtion, this makes code simpler.
After applying the patch, tables are always installed after being
overridden and the table checksums are always verified before installation.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-04 08:38:57 +04:00
|
|
|
table = ACPI_ALLOCATE(length);
|
|
|
|
if (!table) {
|
2008-04-10 19:06:39 +04:00
|
|
|
return_ACPI_STATUS(AE_NO_MEMORY);
|
|
|
|
}
|
2005-04-17 02:20:36 +04:00
|
|
|
|
2015-07-01 09:45:11 +03:00
|
|
|
memcpy(table, table_header, length);
|
2005-04-17 02:20:36 +04:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2013-06-08 04:58:14 +04:00
|
|
|
|
2005-08-05 08:44:28 +04:00
|
|
|
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
|
|
|
2008-08-15 05:37:58 +04:00
|
|
|
/* Install the new table into the local data structures */
|
|
|
|
|
ACPICA: Tables: Fix table checksums verification before installation.
The original table handling code does not always verify checksums before
installing a table, this is because code to achieve this must be
implemented here and there in the redundant code blocks.
There are two stages during table initialization:
1. "INSTALLED" after acpi_tb_install_table() and acpi_tb_override_table(),
struct acpi_table_desc.Pointer is ensured to be NULL. This can be safely used
during OSPM's early boot stage.
2. "VALIDATED" after acpi_tb_validate_table(), struct acpi_table_desc.Pointer is
ensured to be not NULL. This must not be used during OSPM's early boot
stage.
This patch changes acpi_tb_add_table() into an early boot safe API to reduce
code redundancies by changing the table state that is returned by this
function from "VALIDATED" to "INSTALLED". Then the table verification
code can be done in a single place. Originally, the acpi_tb_add_table() can
only be used by dynamic table loadings that are executed after early boot
stage, it cannot be used by static table loadings that are executed in
early boot stage as:
1. The address of the table is a virtual address either maintained by
OSPMs who call acpi_load_table() or by ACPICA whenever "Load" or
"LoadTable" opcodes are executed, while during early boot stage,
physical address of the table should be used for table loading.
2. The API will ensure the state of the loaded table to be "VALIDATED"
while during early boot stage, tables maintained by root table list
should be kept as "INSTALLED".
To achieve this:
1. Rename acpi_tb_install_table() to acpi_tb_install_fixed_table() as it only
applies to DSDT/FACS installation. Rename acpi_tb_add_table() to
acpi_tb_install_non_fixed_table() as it will be applied to the installation
of the rest kinds of tables.
2. Introduce acpi_tb_install_table(), acpi_tb_install_and_override_table to collect
redudant code where their invocations actually have slight differences.
1. acpi_tb_install_table() is used to fill an struct acpi_table_desc where the
table length is known to the caller.
2. acpi_tb_install_and_override_table() is used to perform necessary
overriding before installation.
3. Change a parameter of acpi_tb_install_non_fixed_table() from struct acpi_table_desc
to acpi_physical_address to allow it to be invoked by static table
loadings. Also cleanup acpi_ex_load_op() and acpi_load_table() to accomodate
to the parameter change.
4. Invoke acpi_tb_install_non_fixed_table() for all table loadings other than
DSDT/FACS in acpi_tb_parse_root_table() to improve code maintainability
(logics are collected in the single function). Also delete useless code
from acpi_tb_parse_root_table().
5. Remove all acpi_tb_validate_table() from acpi_tb_install_non_fixed_table() and
acpi_tb_install_fixed_table() so that the table descriptor is kept in the
state of "INSTALLED" but not "VALIDATED" after returning from these
functions.
6. Introduce temporary struct acpi_table_desc (new_table_desc/old_table_desc) into
the functions to indicate a table descriptor that is not maintained by
acpi_gbl_root_table_list. Introduce acpi_tb_acquire_temporal_table() and
acpi_tb_release_temporal_table() to handle the use cases of such temporal
tables. They are only used for verified installation.
7. Introduce acpi_tb_verify_table() to validate table and verify table
checksum, also remove table checksum verification from
acpi_tb_validate_table(). Invoke acpi_tb_validate_table() in the functions
that will convert a table into "LOADED" state or invoke it from
acpi_get_table_XXX() APIs. Invoke acpi_tb_verify_table() on temporary
struct acpi_table_desc(s) that are going to be "INSTALLED".
8. Change acpi_tb_override_table() logic so that a temporary struct acpi_table_desc
will be overridden before installtion, this makes code simpler.
After applying the patch, tables are always installed after being
overridden and the table checksums are always verified before installation.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-04 08:38:57 +04:00
|
|
|
ACPI_INFO((AE_INFO, "Dynamic OEM Table Load:"));
|
|
|
|
(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
|
2014-04-04 08:39:26 +04:00
|
|
|
|
|
|
|
status = acpi_tb_install_standard_table(ACPI_PTR_TO_PHYSADDR(table),
|
|
|
|
ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL,
|
|
|
|
TRUE, TRUE, &table_index);
|
|
|
|
|
ACPICA: Tables: Fix table checksums verification before installation.
The original table handling code does not always verify checksums before
installing a table, this is because code to achieve this must be
implemented here and there in the redundant code blocks.
There are two stages during table initialization:
1. "INSTALLED" after acpi_tb_install_table() and acpi_tb_override_table(),
struct acpi_table_desc.Pointer is ensured to be NULL. This can be safely used
during OSPM's early boot stage.
2. "VALIDATED" after acpi_tb_validate_table(), struct acpi_table_desc.Pointer is
ensured to be not NULL. This must not be used during OSPM's early boot
stage.
This patch changes acpi_tb_add_table() into an early boot safe API to reduce
code redundancies by changing the table state that is returned by this
function from "VALIDATED" to "INSTALLED". Then the table verification
code can be done in a single place. Originally, the acpi_tb_add_table() can
only be used by dynamic table loadings that are executed after early boot
stage, it cannot be used by static table loadings that are executed in
early boot stage as:
1. The address of the table is a virtual address either maintained by
OSPMs who call acpi_load_table() or by ACPICA whenever "Load" or
"LoadTable" opcodes are executed, while during early boot stage,
physical address of the table should be used for table loading.
2. The API will ensure the state of the loaded table to be "VALIDATED"
while during early boot stage, tables maintained by root table list
should be kept as "INSTALLED".
To achieve this:
1. Rename acpi_tb_install_table() to acpi_tb_install_fixed_table() as it only
applies to DSDT/FACS installation. Rename acpi_tb_add_table() to
acpi_tb_install_non_fixed_table() as it will be applied to the installation
of the rest kinds of tables.
2. Introduce acpi_tb_install_table(), acpi_tb_install_and_override_table to collect
redudant code where their invocations actually have slight differences.
1. acpi_tb_install_table() is used to fill an struct acpi_table_desc where the
table length is known to the caller.
2. acpi_tb_install_and_override_table() is used to perform necessary
overriding before installation.
3. Change a parameter of acpi_tb_install_non_fixed_table() from struct acpi_table_desc
to acpi_physical_address to allow it to be invoked by static table
loadings. Also cleanup acpi_ex_load_op() and acpi_load_table() to accomodate
to the parameter change.
4. Invoke acpi_tb_install_non_fixed_table() for all table loadings other than
DSDT/FACS in acpi_tb_parse_root_table() to improve code maintainability
(logics are collected in the single function). Also delete useless code
from acpi_tb_parse_root_table().
5. Remove all acpi_tb_validate_table() from acpi_tb_install_non_fixed_table() and
acpi_tb_install_fixed_table() so that the table descriptor is kept in the
state of "INSTALLED" but not "VALIDATED" after returning from these
functions.
6. Introduce temporary struct acpi_table_desc (new_table_desc/old_table_desc) into
the functions to indicate a table descriptor that is not maintained by
acpi_gbl_root_table_list. Introduce acpi_tb_acquire_temporal_table() and
acpi_tb_release_temporal_table() to handle the use cases of such temporal
tables. They are only used for verified installation.
7. Introduce acpi_tb_verify_table() to validate table and verify table
checksum, also remove table checksum verification from
acpi_tb_validate_table(). Invoke acpi_tb_validate_table() in the functions
that will convert a table into "LOADED" state or invoke it from
acpi_get_table_XXX() APIs. Invoke acpi_tb_verify_table() on temporary
struct acpi_table_desc(s) that are going to be "INSTALLED".
8. Change acpi_tb_override_table() logic so that a temporary struct acpi_table_desc
will be overridden before installtion, this makes code simpler.
After applying the patch, tables are always installed after being
overridden and the table checksums are always verified before installation.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-04 08:38:57 +04:00
|
|
|
(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
|
2007-02-02 19:48:18 +03:00
|
|
|
if (ACPI_FAILURE(status)) {
|
2010-01-21 04:08:31 +03:00
|
|
|
|
|
|
|
/* Delete allocated table buffer */
|
|
|
|
|
ACPICA: Tables: Fix table checksums verification before installation.
The original table handling code does not always verify checksums before
installing a table, this is because code to achieve this must be
implemented here and there in the redundant code blocks.
There are two stages during table initialization:
1. "INSTALLED" after acpi_tb_install_table() and acpi_tb_override_table(),
struct acpi_table_desc.Pointer is ensured to be NULL. This can be safely used
during OSPM's early boot stage.
2. "VALIDATED" after acpi_tb_validate_table(), struct acpi_table_desc.Pointer is
ensured to be not NULL. This must not be used during OSPM's early boot
stage.
This patch changes acpi_tb_add_table() into an early boot safe API to reduce
code redundancies by changing the table state that is returned by this
function from "VALIDATED" to "INSTALLED". Then the table verification
code can be done in a single place. Originally, the acpi_tb_add_table() can
only be used by dynamic table loadings that are executed after early boot
stage, it cannot be used by static table loadings that are executed in
early boot stage as:
1. The address of the table is a virtual address either maintained by
OSPMs who call acpi_load_table() or by ACPICA whenever "Load" or
"LoadTable" opcodes are executed, while during early boot stage,
physical address of the table should be used for table loading.
2. The API will ensure the state of the loaded table to be "VALIDATED"
while during early boot stage, tables maintained by root table list
should be kept as "INSTALLED".
To achieve this:
1. Rename acpi_tb_install_table() to acpi_tb_install_fixed_table() as it only
applies to DSDT/FACS installation. Rename acpi_tb_add_table() to
acpi_tb_install_non_fixed_table() as it will be applied to the installation
of the rest kinds of tables.
2. Introduce acpi_tb_install_table(), acpi_tb_install_and_override_table to collect
redudant code where their invocations actually have slight differences.
1. acpi_tb_install_table() is used to fill an struct acpi_table_desc where the
table length is known to the caller.
2. acpi_tb_install_and_override_table() is used to perform necessary
overriding before installation.
3. Change a parameter of acpi_tb_install_non_fixed_table() from struct acpi_table_desc
to acpi_physical_address to allow it to be invoked by static table
loadings. Also cleanup acpi_ex_load_op() and acpi_load_table() to accomodate
to the parameter change.
4. Invoke acpi_tb_install_non_fixed_table() for all table loadings other than
DSDT/FACS in acpi_tb_parse_root_table() to improve code maintainability
(logics are collected in the single function). Also delete useless code
from acpi_tb_parse_root_table().
5. Remove all acpi_tb_validate_table() from acpi_tb_install_non_fixed_table() and
acpi_tb_install_fixed_table() so that the table descriptor is kept in the
state of "INSTALLED" but not "VALIDATED" after returning from these
functions.
6. Introduce temporary struct acpi_table_desc (new_table_desc/old_table_desc) into
the functions to indicate a table descriptor that is not maintained by
acpi_gbl_root_table_list. Introduce acpi_tb_acquire_temporal_table() and
acpi_tb_release_temporal_table() to handle the use cases of such temporal
tables. They are only used for verified installation.
7. Introduce acpi_tb_verify_table() to validate table and verify table
checksum, also remove table checksum verification from
acpi_tb_validate_table(). Invoke acpi_tb_validate_table() in the functions
that will convert a table into "LOADED" state or invoke it from
acpi_get_table_XXX() APIs. Invoke acpi_tb_verify_table() on temporary
struct acpi_table_desc(s) that are going to be "INSTALLED".
8. Change acpi_tb_override_table() logic so that a temporary struct acpi_table_desc
will be overridden before installtion, this makes code simpler.
After applying the patch, tables are always installed after being
overridden and the table checksums are always verified before installation.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-04 08:38:57 +04:00
|
|
|
ACPI_FREE(table);
|
|
|
|
return_ACPI_STATUS(status);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Note: Now table is "INSTALLED", it must be validated before
|
|
|
|
* loading.
|
|
|
|
*/
|
|
|
|
status =
|
|
|
|
acpi_tb_validate_table(&acpi_gbl_root_table_list.
|
|
|
|
tables[table_index]);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
2010-01-21 04:08:31 +03:00
|
|
|
return_ACPI_STATUS(status);
|
2007-02-02 19:48:18 +03:00
|
|
|
}
|
2005-04-17 02:20:36 +04:00
|
|
|
|
2008-06-10 10:14:17 +04:00
|
|
|
/*
|
|
|
|
* Add the table to the namespace.
|
|
|
|
*
|
2008-08-15 05:37:58 +04:00
|
|
|
* Note: Load the table objects relative to the root of the namespace.
|
2008-06-10 10:14:17 +04:00
|
|
|
* This appears to go against the ACPI specification, but we do it for
|
|
|
|
* compatibility with other ACPI implementations.
|
|
|
|
*/
|
2007-02-02 19:48:18 +03:00
|
|
|
status =
|
2008-06-10 10:14:17 +04:00
|
|
|
acpi_ex_add_table(table_index, acpi_gbl_root_node, &ddb_handle);
|
2005-08-05 08:44:28 +04:00
|
|
|
if (ACPI_FAILURE(status)) {
|
2006-10-02 08:00:00 +04:00
|
|
|
|
2005-05-26 08:00:00 +04:00
|
|
|
/* On error, table_ptr was deallocated above */
|
|
|
|
|
2005-08-05 08:44:28 +04:00
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Store the ddb_handle into the Target operand */
|
|
|
|
|
2005-08-05 08:44:28 +04:00
|
|
|
status = acpi_ex_store(ddb_handle, target, walk_state);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
(void)acpi_ex_unload_table(ddb_handle);
|
2005-04-17 02:20:36 +04:00
|
|
|
|
2005-05-26 08:00:00 +04:00
|
|
|
/* table_ptr was deallocated above */
|
2005-04-17 02:20:36 +04:00
|
|
|
|
2008-04-10 19:06:39 +04:00
|
|
|
acpi_ut_remove_reference(ddb_handle);
|
2005-08-05 08:44:28 +04:00
|
|
|
return_ACPI_STATUS(status);
|
2005-05-26 08:00:00 +04:00
|
|
|
}
|
2005-04-17 02:20:36 +04:00
|
|
|
|
2009-05-21 06:29:28 +04:00
|
|
|
/* Remove the reference by added by acpi_ex_store above */
|
|
|
|
|
|
|
|
acpi_ut_remove_reference(ddb_handle);
|
|
|
|
|
2008-04-10 19:06:38 +04:00
|
|
|
/* Invoke table handler if present */
|
|
|
|
|
|
|
|
if (acpi_gbl_table_handler) {
|
ACPICA: Tables: Fix table checksums verification before installation.
The original table handling code does not always verify checksums before
installing a table, this is because code to achieve this must be
implemented here and there in the redundant code blocks.
There are two stages during table initialization:
1. "INSTALLED" after acpi_tb_install_table() and acpi_tb_override_table(),
struct acpi_table_desc.Pointer is ensured to be NULL. This can be safely used
during OSPM's early boot stage.
2. "VALIDATED" after acpi_tb_validate_table(), struct acpi_table_desc.Pointer is
ensured to be not NULL. This must not be used during OSPM's early boot
stage.
This patch changes acpi_tb_add_table() into an early boot safe API to reduce
code redundancies by changing the table state that is returned by this
function from "VALIDATED" to "INSTALLED". Then the table verification
code can be done in a single place. Originally, the acpi_tb_add_table() can
only be used by dynamic table loadings that are executed after early boot
stage, it cannot be used by static table loadings that are executed in
early boot stage as:
1. The address of the table is a virtual address either maintained by
OSPMs who call acpi_load_table() or by ACPICA whenever "Load" or
"LoadTable" opcodes are executed, while during early boot stage,
physical address of the table should be used for table loading.
2. The API will ensure the state of the loaded table to be "VALIDATED"
while during early boot stage, tables maintained by root table list
should be kept as "INSTALLED".
To achieve this:
1. Rename acpi_tb_install_table() to acpi_tb_install_fixed_table() as it only
applies to DSDT/FACS installation. Rename acpi_tb_add_table() to
acpi_tb_install_non_fixed_table() as it will be applied to the installation
of the rest kinds of tables.
2. Introduce acpi_tb_install_table(), acpi_tb_install_and_override_table to collect
redudant code where their invocations actually have slight differences.
1. acpi_tb_install_table() is used to fill an struct acpi_table_desc where the
table length is known to the caller.
2. acpi_tb_install_and_override_table() is used to perform necessary
overriding before installation.
3. Change a parameter of acpi_tb_install_non_fixed_table() from struct acpi_table_desc
to acpi_physical_address to allow it to be invoked by static table
loadings. Also cleanup acpi_ex_load_op() and acpi_load_table() to accomodate
to the parameter change.
4. Invoke acpi_tb_install_non_fixed_table() for all table loadings other than
DSDT/FACS in acpi_tb_parse_root_table() to improve code maintainability
(logics are collected in the single function). Also delete useless code
from acpi_tb_parse_root_table().
5. Remove all acpi_tb_validate_table() from acpi_tb_install_non_fixed_table() and
acpi_tb_install_fixed_table() so that the table descriptor is kept in the
state of "INSTALLED" but not "VALIDATED" after returning from these
functions.
6. Introduce temporary struct acpi_table_desc (new_table_desc/old_table_desc) into
the functions to indicate a table descriptor that is not maintained by
acpi_gbl_root_table_list. Introduce acpi_tb_acquire_temporal_table() and
acpi_tb_release_temporal_table() to handle the use cases of such temporal
tables. They are only used for verified installation.
7. Introduce acpi_tb_verify_table() to validate table and verify table
checksum, also remove table checksum verification from
acpi_tb_validate_table(). Invoke acpi_tb_validate_table() in the functions
that will convert a table into "LOADED" state or invoke it from
acpi_get_table_XXX() APIs. Invoke acpi_tb_verify_table() on temporary
struct acpi_table_desc(s) that are going to be "INSTALLED".
8. Change acpi_tb_override_table() logic so that a temporary struct acpi_table_desc
will be overridden before installtion, this makes code simpler.
After applying the patch, tables are always installed after being
overridden and the table checksums are always verified before installation.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-04-04 08:38:57 +04:00
|
|
|
(void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD, table,
|
2008-04-10 19:06:38 +04:00
|
|
|
acpi_gbl_table_handler_context);
|
|
|
|
}
|
|
|
|
|
2005-08-05 08:44:28 +04:00
|
|
|
return_ACPI_STATUS(status);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
/*******************************************************************************
|
|
|
|
*
|
|
|
|
* FUNCTION: acpi_ex_unload_table
|
|
|
|
*
|
|
|
|
* PARAMETERS: ddb_handle - Handle to a previously loaded table
|
|
|
|
*
|
|
|
|
* RETURN: Status
|
|
|
|
*
|
|
|
|
* DESCRIPTION: Unload an ACPI table
|
|
|
|
*
|
|
|
|
******************************************************************************/
|
|
|
|
|
2005-08-05 08:44:28 +04:00
|
|
|
acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle)
|
2005-04-17 02:20:36 +04:00
|
|
|
{
|
2005-08-05 08:44:28 +04:00
|
|
|
acpi_status status = AE_OK;
|
|
|
|
union acpi_operand_object *table_desc = ddb_handle;
|
2008-06-10 09:42:13 +04:00
|
|
|
u32 table_index;
|
2008-04-10 19:06:38 +04:00
|
|
|
struct acpi_table_header *table;
|
2005-04-17 02:20:36 +04:00
|
|
|
|
ACPI: ACPICA 20060421
Removed a device initialization optimization introduced in
20051216 where the _STA method was not run unless an _INI
was also present for the same device. This optimization
could cause problems because it could allow _INI methods
to be run within a not-present device subtree (If a
not-present device had no _INI, _STA would not be run,
the not-present status would not be discovered, and the
children of the device would be incorrectly traversed.)
Implemented a new _STA optimization where namespace
subtrees that do not contain _INI are identified and
ignored during device initialization. Selectively running
_STA can significantly improve boot time on large machines
(with assistance from Len Brown.)
Implemented support for the device initialization case
where the returned _STA flags indicate a device not-present
but functioning. In this case, _INI is not run, but the
device children are examined for presence, as per the
ACPI specification.
Implemented an additional change to the IndexField support
in order to conform to MS behavior. The value written to
the Index Register is not simply a byte offset, it is a
byte offset in units of the access width of the parent
Index Field. (Fiodor Suietov)
Defined and deployed a new OSL interface,
acpi_os_validate_address(). This interface is called during
the creation of all AML operation regions, and allows
the host OS to exert control over what addresses it will
allow the AML code to access. Operation Regions whose
addresses are disallowed will cause a runtime exception
when they are actually accessed (will not affect or abort
table loading.)
Defined and deployed a new OSL interface,
acpi_os_validate_interface(). This interface allows the host OS
to match the various "optional" interface/behavior strings
for the _OSI predefined control method as appropriate
(with assistance from Bjorn Helgaas.)
Restructured and corrected various problems in the
exception handling code paths within DsCallControlMethod
and DsTerminateControlMethod in dsmethod (with assistance
from Takayoshi Kochi.)
Modified the Linux source converter to ignore quoted string
literals while converting identifiers from mixed to lower
case. This will correct problems with the disassembler
and other areas where such strings must not be modified.
The ACPI_FUNCTION_* macros no longer require quotes around
the function name. This allows the Linux source converter
to convert the names, now that the converter ignores
quoted strings.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-22 01:15:00 +04:00
|
|
|
ACPI_FUNCTION_TRACE(ex_unload_table);
|
2005-04-17 02:20:36 +04:00
|
|
|
|
2014-04-04 08:37:26 +04:00
|
|
|
/*
|
|
|
|
* Temporarily emit a warning so that the ASL for the machine can be
|
|
|
|
* hopefully obtained. This is to say that the Unload() operator is
|
|
|
|
* extremely rare if not completely unused.
|
|
|
|
*/
|
|
|
|
ACPI_WARNING((AE_INFO, "Received request to unload an ACPI table"));
|
|
|
|
|
2005-04-17 02:20:36 +04:00
|
|
|
/*
|
|
|
|
* Validate the handle
|
2009-05-21 06:32:02 +04:00
|
|
|
* Although the handle is partially validated in acpi_ex_reconfiguration()
|
2005-04-17 02:20:36 +04:00
|
|
|
* when it calls acpi_ex_resolve_operands(), the handle is more completely
|
|
|
|
* validated here.
|
2009-05-21 06:32:02 +04:00
|
|
|
*
|
|
|
|
* Handle must be a valid operand object of type reference. Also, the
|
|
|
|
* ddb_handle must still be marked valid (table has not been previously
|
|
|
|
* unloaded)
|
2005-04-17 02:20:36 +04:00
|
|
|
*/
|
|
|
|
if ((!ddb_handle) ||
|
2005-08-05 08:44:28 +04:00
|
|
|
(ACPI_GET_DESCRIPTOR_TYPE(ddb_handle) != ACPI_DESC_TYPE_OPERAND) ||
|
2009-05-21 06:32:02 +04:00
|
|
|
(ddb_handle->common.type != ACPI_TYPE_LOCAL_REFERENCE) ||
|
|
|
|
(!(ddb_handle->common.flags & AOPOBJ_DATA_VALID))) {
|
2013-05-30 05:59:00 +04:00
|
|
|
return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|
|
|
|
|
2008-09-27 06:40:39 +04:00
|
|
|
/* Get the table index from the ddb_handle */
|
2005-04-17 02:20:36 +04:00
|
|
|
|
2008-09-27 06:40:39 +04:00
|
|
|
table_index = table_desc->reference.value;
|
2005-04-17 02:20:36 +04:00
|
|
|
|
2009-05-21 06:32:02 +04:00
|
|
|
/* Ensure the table is still loaded */
|
|
|
|
|
|
|
|
if (!acpi_tb_is_table_loaded(table_index)) {
|
|
|
|
return_ACPI_STATUS(AE_NOT_EXIST);
|
|
|
|
}
|
|
|
|
|
2008-04-10 19:06:38 +04:00
|
|
|
/* Invoke table handler if present */
|
|
|
|
|
|
|
|
if (acpi_gbl_table_handler) {
|
|
|
|
status = acpi_get_table_by_index(table_index, &table);
|
|
|
|
if (ACPI_SUCCESS(status)) {
|
|
|
|
(void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_UNLOAD,
|
|
|
|
table,
|
|
|
|
acpi_gbl_table_handler_context);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-03-09 11:31:04 +03:00
|
|
|
/* Delete the portion of the namespace owned by this table */
|
|
|
|
|
|
|
|
status = acpi_tb_delete_namespace_by_owner(table_index);
|
|
|
|
if (ACPI_FAILURE(status)) {
|
|
|
|
return_ACPI_STATUS(status);
|
|
|
|
}
|
2005-04-17 02:20:36 +04:00
|
|
|
|
2009-03-09 11:31:04 +03:00
|
|
|
(void)acpi_tb_release_owner_id(table_index);
|
2007-02-02 19:48:18 +03:00
|
|
|
acpi_tb_set_table_loaded_flag(table_index, FALSE);
|
2005-04-17 02:20:36 +04:00
|
|
|
|
2009-05-21 06:32:02 +04:00
|
|
|
/*
|
|
|
|
* Invalidate the handle. We do this because the handle may be stored
|
|
|
|
* in a named object and may not be actually deleted until much later.
|
|
|
|
*/
|
|
|
|
ddb_handle->common.flags &= ~AOPOBJ_DATA_VALID;
|
2008-04-10 19:06:38 +04:00
|
|
|
return_ACPI_STATUS(AE_OK);
|
2005-04-17 02:20:36 +04:00
|
|
|
}
|