ACPI_STATUS
AcpiTbLoadTable (
UINT32 TableIndex,
ACPI_NAMESPACE_NODE *ParentNode)
{
ACPI_TABLE_HEADER *Table;
ACPI_STATUS Status;
ACPI_OWNER_ID OwnerId;
ACPI_FUNCTION_TRACE (TbLoadTable);
/*
* Note: Now table is "INSTALLED", it must be validated before
* using.
*/
Status = AcpiGetTableByIndex (TableIndex, &Table);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
Status = AcpiNsLoadTable (TableIndex, ParentNode);
/*
* This case handles the legacy option that groups all module-level
* code blocks together and defers execution until all of the tables
* are loaded. Execute all of these blocks at this time.
* Execute any module-level code that was detected during the table
* load phase.
*
* Note: this option is deprecated and will be eliminated in the
* future. Use of this option can cause problems with AML code that
* depends upon in-order immediate execution of module-level code.
*/
AcpiNsExecModuleCodeList ();
/*
* 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.
*/
Status = AcpiTbGetOwnerId (TableIndex, &OwnerId);
if (ACPI_SUCCESS (Status))
{
AcpiEvUpdateGpes (OwnerId);
}
/* Invoke table handler */
AcpiTbNotifyTable (ACPI_TABLE_EVENT_LOAD, Table);
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiTbLoadTable (
UINT32 TableIndex,
ACPI_NAMESPACE_NODE *ParentNode)
{
ACPI_TABLE_HEADER *Table;
ACPI_STATUS Status;
ACPI_OWNER_ID OwnerId;
ACPI_FUNCTION_TRACE (TbLoadTable);
/*
* Note: Now table is "INSTALLED", it must be validated before
* using.
*/
Status = AcpiGetTableByIndex (TableIndex, &Table);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
Status = AcpiNsLoadTable (TableIndex, ParentNode);
/* Execute any module-level code that was found in the table */
if (!AcpiGbl_ParseTableAsTermList && AcpiGbl_GroupModuleLevelCode)
{
AcpiNsExecModuleCodeList ();
}
/*
* 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.
*/
Status = AcpiTbGetOwnerId (TableIndex, &OwnerId);
if (ACPI_SUCCESS (Status))
{
AcpiEvUpdateGpes (OwnerId);
}
/* Invoke table handler */
AcpiTbNotifyTable (ACPI_TABLE_EVENT_LOAD, Table);
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiTbUnloadTable (
UINT32 TableIndex)
{
ACPI_STATUS Status = AE_OK;
ACPI_TABLE_HEADER *Table;
ACPI_FUNCTION_TRACE (TbUnloadTable);
/* Ensure the table is still loaded */
if (!AcpiTbIsTableLoaded (TableIndex))
{
return_ACPI_STATUS (AE_NOT_EXIST);
}
/* Invoke table handler */
Status = AcpiGetTableByIndex (TableIndex, &Table);
if (ACPI_SUCCESS (Status))
{
AcpiTbNotifyTable (ACPI_TABLE_EVENT_UNLOAD, Table);
}
/* Delete the portion of the namespace owned by this table */
Status = AcpiTbDeleteNamespaceByOwner (TableIndex);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
(void) AcpiTbReleaseOwnerId (TableIndex);
AcpiTbSetTableLoadedFlag (TableIndex, FALSE);
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiTbInstallStandardTable (
ACPI_PHYSICAL_ADDRESS Address,
UINT8 Flags,
BOOLEAN Reload,
BOOLEAN Override,
UINT32 *TableIndex)
{
UINT32 i;
ACPI_STATUS Status = AE_OK;
ACPI_TABLE_DESC NewTableDesc;
ACPI_FUNCTION_TRACE (TbInstallStandardTable);
/* Acquire a temporary table descriptor for validation */
Status = AcpiTbAcquireTempTable (&NewTableDesc, Address, Flags);
if (ACPI_FAILURE (Status))
{
ACPI_ERROR ((AE_INFO,
"Could not acquire table length at %8.8X%8.8X",
ACPI_FORMAT_UINT64 (Address)));
return_ACPI_STATUS (Status);
}
/*
* Optionally do not load any SSDTs from the RSDT/XSDT. This can
* be useful for debugging ACPI problems on some machines.
*/
if (!Reload &&
AcpiGbl_DisableSsdtTableInstall &&
ACPI_COMPARE_NAME (&NewTableDesc.Signature, ACPI_SIG_SSDT))
{
ACPI_INFO ((
"Ignoring installation of %4.4s at %8.8X%8.8X",
NewTableDesc.Signature.Ascii, ACPI_FORMAT_UINT64 (Address)));
goto ReleaseAndExit;
}
/* Acquire the table lock */
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
/* Validate and verify a table before installation */
Status = AcpiTbVerifyTempTable (&NewTableDesc, NULL, &i);
if (ACPI_FAILURE (Status))
{
if (Status == AE_CTRL_TERMINATE)
{
/*
* Table was unloaded, allow it to be reloaded.
* As we are going to return AE_OK to the caller, we should
* take the responsibility of freeing the input descriptor.
* Refill the input descriptor to ensure
* AcpiTbInstallTableWithOverride() can be called again to
* indicate the re-installation.
*/
AcpiTbUninstallTable (&NewTableDesc);
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
*TableIndex = i;
return_ACPI_STATUS (AE_OK);
}
goto UnlockAndExit;
}
/* Add the table to the global root table list */
AcpiTbInstallTableWithOverride (&NewTableDesc, Override, TableIndex);
/* Invoke table handler */
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
AcpiTbNotifyTable (ACPI_TABLE_EVENT_INSTALL, NewTableDesc.Pointer);
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
UnlockAndExit:
/* Release the table lock */
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
ReleaseAndExit:
/* Release the temporary table descriptor */
AcpiTbReleaseTempTable (&NewTableDesc);
return_ACPI_STATUS (Status);
}