ACPI_STATUS
AcpiGetTableByIndex (
UINT32 TableIndex,
ACPI_TABLE_HEADER **Table)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (AcpiGetTableByIndex);
/* Parameter validation */
if (!Table)
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
/* Validate index */
if (TableIndex >= AcpiGbl_RootTableList.CurrentTableCount)
{
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
if (!AcpiGbl_RootTableList.Tables[TableIndex].Pointer)
{
/* Table is not mapped, map it */
Status = AcpiTbValidateTable (
&AcpiGbl_RootTableList.Tables[TableIndex]);
if (ACPI_FAILURE (Status))
{
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
return_ACPI_STATUS (Status);
}
}
*Table = AcpiGbl_RootTableList.Tables[TableIndex].Pointer;
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
return_ACPI_STATUS (AE_OK);
}
ACPI_STATUS
AcpiGetTable (
char *Signature,
UINT32 Instance,
ACPI_TABLE_HEADER **OutTable)
{
UINT32 i;
UINT32 j;
ACPI_STATUS Status;
/* Parameter validation */
if (!Signature || !OutTable)
{
return (AE_BAD_PARAMETER);
}
/* Walk the root table list */
for (i = 0, j = 0; i < AcpiGbl_RootTableList.CurrentTableCount; i++)
{
if (!ACPI_COMPARE_NAME (
&(AcpiGbl_RootTableList.Tables[i].Signature), Signature))
{
continue;
}
if (++j < Instance)
{
continue;
}
Status = AcpiTbValidateTable (&AcpiGbl_RootTableList.Tables[i]);
if (ACPI_SUCCESS (Status))
{
*OutTable = AcpiGbl_RootTableList.Tables[i].Pointer;
}
return (Status);
}
return (AE_NOT_FOUND);
}
ACPI_STATUS
AcpiTbValidateTempTable (
ACPI_TABLE_DESC *TableDesc)
{
if (!TableDesc->Pointer && !AcpiGbl_EnableTableValidation)
{
/*
* Only validates the header of the table.
* Note that Length contains the size of the mapping after invoking
* this work around, this value is required by
* AcpiTbReleaseTempTable().
* We can do this because in AcpiInitTableDescriptor(), the Length
* field of the installed descriptor is filled with the actual
* table length obtaining from the table header.
*/
TableDesc->Length = sizeof (ACPI_TABLE_HEADER);
}
return (AcpiTbValidateTable (TableDesc));
}
ACPI_STATUS
AcpiTbGetTable (
ACPI_TABLE_DESC *TableDesc,
ACPI_TABLE_HEADER **OutTable)
{
ACPI_STATUS Status;
ACPI_FUNCTION_TRACE (AcpiTbGetTable);
if (TableDesc->ValidationCount == 0)
{
/* Table need to be "VALIDATED" */
Status = AcpiTbValidateTable (TableDesc);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
if (TableDesc->ValidationCount < ACPI_MAX_TABLE_VALIDATIONS)
{
TableDesc->ValidationCount++;
/*
* Detect ValidationCount overflows to ensure that the warning
* message will only be printed once.
*/
if (TableDesc->ValidationCount >= ACPI_MAX_TABLE_VALIDATIONS)
{
ACPI_WARNING((AE_INFO,
"Table %p, Validation count overflows\n", TableDesc));
}
}
*OutTable = TableDesc->Pointer;
return_ACPI_STATUS (AE_OK);
}
static ACPI_STATUS
AdStoreTable (
ACPI_TABLE_HEADER *Table,
UINT32 *TableIndex)
{
ACPI_STATUS Status;
ACPI_TABLE_DESC *TableDesc;
Status = AcpiTbGetNextTableDescriptor (TableIndex, &TableDesc);
if (ACPI_FAILURE (Status))
{
return (Status);
}
/* Initialize added table */
AcpiTbInitTableDescriptor (TableDesc, ACPI_PTR_TO_PHYSADDR (Table),
ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL, Table);
Status = AcpiTbValidateTable (TableDesc);
return (Status);
}
ACPI_STATUS
AcpiTbFindTable (
char *Signature,
char *OemId,
char *OemTableId,
UINT32 *TableIndex)
{
ACPI_STATUS Status;
ACPI_TABLE_HEADER Header;
UINT32 i;
ACPI_FUNCTION_TRACE (TbFindTable);
/* Validate the input table signature */
if (!AcpiIsValidSignature (Signature))
{
return_ACPI_STATUS (AE_BAD_SIGNATURE);
}
/* Don't allow the OEM strings to be too long */
if ((strlen (OemId) > ACPI_OEM_ID_SIZE) ||
(strlen (OemTableId) > ACPI_OEM_TABLE_ID_SIZE))
{
return_ACPI_STATUS (AE_AML_STRING_LIMIT);
}
/* Normalize the input strings */
memset (&Header, 0, sizeof (ACPI_TABLE_HEADER));
ACPI_MOVE_NAME (Header.Signature, Signature);
strncpy (Header.OemId, OemId, ACPI_OEM_ID_SIZE);
strncpy (Header.OemTableId, OemTableId, ACPI_OEM_TABLE_ID_SIZE);
/* Search for the table */
for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i)
{
if (memcmp (&(AcpiGbl_RootTableList.Tables[i].Signature),
Header.Signature, ACPI_NAME_SIZE))
{
/* Not the requested table */
continue;
}
/* Table with matching signature has been found */
if (!AcpiGbl_RootTableList.Tables[i].Pointer)
{
/* Table is not currently mapped, map it */
Status = AcpiTbValidateTable (&AcpiGbl_RootTableList.Tables[i]);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
if (!AcpiGbl_RootTableList.Tables[i].Pointer)
{
continue;
}
}
/* Check for table match on all IDs */
if (!memcmp (AcpiGbl_RootTableList.Tables[i].Pointer->Signature,
Header.Signature, ACPI_NAME_SIZE) &&
(!OemId[0] ||
!memcmp (AcpiGbl_RootTableList.Tables[i].Pointer->OemId,
Header.OemId, ACPI_OEM_ID_SIZE)) &&
(!OemTableId[0] ||
!memcmp (AcpiGbl_RootTableList.Tables[i].Pointer->OemTableId,
Header.OemTableId, ACPI_OEM_TABLE_ID_SIZE)))
{
*TableIndex = i;
ACPI_DEBUG_PRINT ((ACPI_DB_TABLES, "Found table [%4.4s]\n",
Header.Signature));
return_ACPI_STATUS (AE_OK);
}
}
return_ACPI_STATUS (AE_NOT_FOUND);
}
ACPI_STATUS
AcpiExLoadOp (
ACPI_OPERAND_OBJECT *ObjDesc,
ACPI_OPERAND_OBJECT *Target,
ACPI_WALK_STATE *WalkState)
{
ACPI_OPERAND_OBJECT *DdbHandle;
ACPI_TABLE_HEADER *TableHeader;
ACPI_TABLE_HEADER *Table;
UINT32 TableIndex;
ACPI_STATUS Status;
UINT32 Length;
ACPI_FUNCTION_TRACE (ExLoadOp);
/* Source Object can be either an OpRegion or a Buffer/Field */
switch (ObjDesc->Common.Type)
{
case ACPI_TYPE_REGION:
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
"Load table from Region %p\n", ObjDesc));
/* Region must be SystemMemory (from ACPI spec) */
if (ObjDesc->Region.SpaceId != ACPI_ADR_SPACE_SYSTEM_MEMORY)
{
return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
}
/*
* If the Region Address and Length have not been previously evaluated,
* evaluate them now and save the results.
*/
if (!(ObjDesc->Common.Flags & AOPOBJ_DATA_VALID))
{
Status = AcpiDsGetRegionArguments (ObjDesc);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
}
/* Get the table header first so we can get the table length */
TableHeader = ACPI_ALLOCATE (sizeof (ACPI_TABLE_HEADER));
if (!TableHeader)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
Status = AcpiExRegionRead (ObjDesc, sizeof (ACPI_TABLE_HEADER),
ACPI_CAST_PTR (UINT8, TableHeader));
Length = TableHeader->Length;
ACPI_FREE (TableHeader);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/* Must have at least an ACPI table header */
if (Length < sizeof (ACPI_TABLE_HEADER))
{
return_ACPI_STATUS (AE_INVALID_TABLE_LENGTH);
}
/*
* 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, AcpiExec and ASLTS depend on this.
*/
/* Allocate a buffer for the table */
Table = ACPI_ALLOCATE (Length);
if (!Table)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
/* Read the entire table */
Status = AcpiExRegionRead (ObjDesc, Length,
ACPI_CAST_PTR (UINT8, Table));
if (ACPI_FAILURE (Status))
{
ACPI_FREE (Table);
return_ACPI_STATUS (Status);
}
break;
case ACPI_TYPE_BUFFER: /* Buffer or resolved RegionField */
ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
"Load table from Buffer or Field %p\n", ObjDesc));
/* Must have at least an ACPI table header */
if (ObjDesc->Buffer.Length < sizeof (ACPI_TABLE_HEADER))
{
return_ACPI_STATUS (AE_INVALID_TABLE_LENGTH);
}
/* Get the actual table length from the table header */
TableHeader = ACPI_CAST_PTR (ACPI_TABLE_HEADER, ObjDesc->Buffer.Pointer);
Length = TableHeader->Length;
/* Table cannot extend beyond the buffer */
if (Length > ObjDesc->Buffer.Length)
{
return_ACPI_STATUS (AE_AML_BUFFER_LIMIT);
}
if (Length < sizeof (ACPI_TABLE_HEADER))
{
return_ACPI_STATUS (AE_INVALID_TABLE_LENGTH);
}
/*
* Copy the table from the buffer because the buffer could be modified
* or even deleted in the future
*/
Table = ACPI_ALLOCATE (Length);
if (!Table)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
ACPI_MEMCPY (Table, TableHeader, Length);
break;
default:
return_ACPI_STATUS (AE_AML_OPERAND_TYPE);
}
/* Install the new table into the local data structures */
ACPI_INFO ((AE_INFO, "Dynamic OEM Table Load:"));
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
Status = AcpiTbInstallStandardTable (ACPI_PTR_TO_PHYSADDR (Table),
ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL, TRUE, TRUE,
&TableIndex);
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
if (ACPI_FAILURE (Status))
{
/* Delete allocated table buffer */
ACPI_FREE (Table);
return_ACPI_STATUS (Status);
}
/*
* Note: Now table is "INSTALLED", it must be validated before
* loading.
*/
Status = AcpiTbValidateTable (&AcpiGbl_RootTableList.Tables[TableIndex]);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/*
* Add the table to the namespace.
*
* Note: Load the table objects relative to the root of the namespace.
* This appears to go against the ACPI specification, but we do it for
* compatibility with other ACPI implementations.
*/
Status = AcpiExAddTable (TableIndex, AcpiGbl_RootNode, &DdbHandle);
if (ACPI_FAILURE (Status))
{
/* On error, TablePtr was deallocated above */
return_ACPI_STATUS (Status);
}
/* Store the DdbHandle into the Target operand */
Status = AcpiExStore (DdbHandle, Target, WalkState);
if (ACPI_FAILURE (Status))
{
(void) AcpiExUnloadTable (DdbHandle);
/* TablePtr was deallocated above */
AcpiUtRemoveReference (DdbHandle);
return_ACPI_STATUS (Status);
}
/* Remove the reference by added by AcpiExStore above */
AcpiUtRemoveReference (DdbHandle);
/* Invoke table handler if present */
if (AcpiGbl_TableHandler)
{
(void) AcpiGbl_TableHandler (ACPI_TABLE_EVENT_LOAD, Table,
AcpiGbl_TableHandlerContext);
}
return_ACPI_STATUS (Status);
}
void
AcpiDbDisplayTableInfo (
char *TableArg)
{
UINT32 i;
ACPI_TABLE_DESC *TableDesc;
ACPI_STATUS Status;
/* Header */
AcpiOsPrintf ("Idx ID Status Type TableHeader (Sig, Address, Length)\n");
/* Walk the entire root table list */
for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; i++)
{
TableDesc = &AcpiGbl_RootTableList.Tables[i];
/* Index and Table ID */
AcpiOsPrintf ("%3u %.2u ", i, TableDesc->OwnerId);
/* Decode the table flags */
if (!(TableDesc->Flags & ACPI_TABLE_IS_LOADED))
{
AcpiOsPrintf ("NotLoaded ");
}
else
{
AcpiOsPrintf (" Loaded ");
}
switch (TableDesc->Flags & ACPI_TABLE_ORIGIN_MASK)
{
case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL:
AcpiOsPrintf ("External/virtual ");
break;
case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL:
AcpiOsPrintf ("Internal/physical ");
break;
case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL:
AcpiOsPrintf ("Internal/virtual ");
break;
default:
AcpiOsPrintf ("INVALID TYPE ");
break;
}
/* Make sure that the table is mapped */
Status = AcpiTbValidateTable (TableDesc);
if (ACPI_FAILURE (Status))
{
return;
}
/* Dump the table header */
if (TableDesc->Pointer)
{
AcpiTbPrintTableHeader (TableDesc->Address, TableDesc->Pointer);
}
else
{
/* If the pointer is null, the table has been unloaded */
ACPI_INFO ((AE_INFO, "%4.4s - Table has been unloaded",
TableDesc->Signature.Ascii));
}
}
}
ACPI_STATUS
AcpiLoadTable (
ACPI_TABLE_HEADER *Table)
{
ACPI_STATUS Status;
UINT32 TableIndex;
ACPI_FUNCTION_TRACE (AcpiLoadTable);
/* Parameter validation */
if (!Table)
{
return_ACPI_STATUS (AE_BAD_PARAMETER);
}
/* Must acquire the interpreter lock during this operation */
Status = AcpiUtAcquireMutex (ACPI_MTX_INTERPRETER);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/* Install the table and load it into the namespace */
ACPI_INFO (("Host-directed Dynamic ACPI Table Load:"));
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
Status = AcpiTbInstallStandardTable (ACPI_PTR_TO_PHYSADDR (Table),
ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL, TRUE, FALSE,
&TableIndex);
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
if (ACPI_FAILURE (Status))
{
goto UnlockAndExit;
}
/*
* Note: Now table is "INSTALLED", it must be validated before
* using.
*/
Status = AcpiTbValidateTable (
&AcpiGbl_RootTableList.Tables[TableIndex]);
if (ACPI_FAILURE (Status))
{
goto UnlockAndExit;
}
Status = AcpiNsLoadTable (TableIndex, AcpiGbl_RootNode);
/* Invoke table handler if present */
if (AcpiGbl_TableHandler)
{
(void) AcpiGbl_TableHandler (ACPI_TABLE_EVENT_LOAD, Table,
AcpiGbl_TableHandlerContext);
}
UnlockAndExit:
(void) AcpiUtReleaseMutex (ACPI_MTX_INTERPRETER);
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiTbLoadNamespace (
void)
{
ACPI_STATUS Status;
UINT32 i;
ACPI_TABLE_HEADER *NewDsdt;
ACPI_TABLE_DESC *Table;
UINT32 TablesLoaded = 0;
UINT32 TablesFailed = 0;
ACPI_FUNCTION_TRACE (TbLoadNamespace);
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
/*
* Load the namespace. The DSDT is required, but any SSDT and
* PSDT tables are optional. Verify the DSDT.
*/
Table = &AcpiGbl_RootTableList.Tables[AcpiGbl_DsdtIndex];
if (!AcpiGbl_RootTableList.CurrentTableCount ||
!ACPI_COMPARE_NAME (Table->Signature.Ascii, ACPI_SIG_DSDT) ||
ACPI_FAILURE (AcpiTbValidateTable (Table)))
{
Status = AE_NO_ACPI_TABLES;
goto UnlockAndExit;
}
/*
* Save the DSDT pointer for simple access. This is the mapped memory
* address. We must take care here because the address of the .Tables
* array can change dynamically as tables are loaded at run-time. Note:
* .Pointer field is not validated until after call to AcpiTbValidateTable.
*/
AcpiGbl_DSDT = Table->Pointer;
/*
* Optionally copy the entire DSDT to local memory (instead of simply
* mapping it.) There are some BIOSs that corrupt or replace the original
* DSDT, creating the need for this option. Default is FALSE, do not copy
* the DSDT.
*/
if (AcpiGbl_CopyDsdtLocally)
{
NewDsdt = AcpiTbCopyDsdt (AcpiGbl_DsdtIndex);
if (NewDsdt)
{
AcpiGbl_DSDT = NewDsdt;
}
}
/*
* Save the original DSDT header for detection of table corruption
* and/or replacement of the DSDT from outside the OS.
*/
memcpy (&AcpiGbl_OriginalDsdtHeader, AcpiGbl_DSDT,
sizeof (ACPI_TABLE_HEADER));
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
/* Load and parse tables */
Status = AcpiNsLoadTable (AcpiGbl_DsdtIndex, AcpiGbl_RootNode);
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status, "[DSDT] table load failed"));
TablesFailed++;
}
else
{
TablesLoaded++;
}
/* Load any SSDT or PSDT tables. Note: Loop leaves tables locked */
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i)
{
Table = &AcpiGbl_RootTableList.Tables[i];
if (!AcpiGbl_RootTableList.Tables[i].Address ||
(!ACPI_COMPARE_NAME (Table->Signature.Ascii, ACPI_SIG_SSDT) &&
!ACPI_COMPARE_NAME (Table->Signature.Ascii, ACPI_SIG_PSDT) &&
!ACPI_COMPARE_NAME (Table->Signature.Ascii, ACPI_SIG_OSDT)) ||
ACPI_FAILURE (AcpiTbValidateTable (Table)))
{
continue;
}
/* Ignore errors while loading tables, get as many as possible */
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
Status = AcpiNsLoadTable (i, AcpiGbl_RootNode);
if (ACPI_FAILURE (Status))
{
ACPI_EXCEPTION ((AE_INFO, Status, "(%4.4s:%8.8s) while loading table",
Table->Signature.Ascii, Table->Pointer->OemTableId));
TablesFailed++;
ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
"Table [%4.4s:%8.8s] (id FF) - Table namespace load failed\n\n",
Table->Signature.Ascii, Table->Pointer->OemTableId));
}
else
{
TablesLoaded++;
}
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
}
if (!TablesFailed)
{
ACPI_INFO ((
"%u ACPI AML tables successfully acquired and loaded\n",
TablesLoaded));
}
else
{
ACPI_ERROR ((AE_INFO,
"%u table load failures, %u successful",
TablesFailed, TablesLoaded));
/* Indicate at least one failure */
Status = AE_CTRL_TERMINATE;
}
UnlockAndExit:
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
return_ACPI_STATUS (Status);
}
static ACPI_STATUS
AcpiTbLoadNamespace (
void)
{
ACPI_STATUS Status;
UINT32 i;
ACPI_TABLE_HEADER *NewDsdt;
ACPI_FUNCTION_TRACE (TbLoadNamespace);
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
/*
* Load the namespace. The DSDT is required, but any SSDT and
* PSDT tables are optional. Verify the DSDT.
*/
if (!AcpiGbl_RootTableList.CurrentTableCount ||
!ACPI_COMPARE_NAME (
&(AcpiGbl_RootTableList.Tables[ACPI_TABLE_INDEX_DSDT].Signature),
ACPI_SIG_DSDT) ||
ACPI_FAILURE (AcpiTbValidateTable (
&AcpiGbl_RootTableList.Tables[ACPI_TABLE_INDEX_DSDT])))
{
Status = AE_NO_ACPI_TABLES;
goto UnlockAndExit;
}
/*
* Save the DSDT pointer for simple access. This is the mapped memory
* address. We must take care here because the address of the .Tables
* array can change dynamically as tables are loaded at run-time. Note:
* .Pointer field is not validated until after call to AcpiTbValidateTable.
*/
AcpiGbl_DSDT = AcpiGbl_RootTableList.Tables[ACPI_TABLE_INDEX_DSDT].Pointer;
/*
* Optionally copy the entire DSDT to local memory (instead of simply
* mapping it.) There are some BIOSs that corrupt or replace the original
* DSDT, creating the need for this option. Default is FALSE, do not copy
* the DSDT.
*/
if (AcpiGbl_CopyDsdtLocally)
{
NewDsdt = AcpiTbCopyDsdt (ACPI_TABLE_INDEX_DSDT);
if (NewDsdt)
{
AcpiGbl_DSDT = NewDsdt;
}
}
/*
* Save the original DSDT header for detection of table corruption
* and/or replacement of the DSDT from outside the OS.
*/
ACPI_MEMCPY (&AcpiGbl_OriginalDsdtHeader, AcpiGbl_DSDT,
sizeof (ACPI_TABLE_HEADER));
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
/* Load and parse tables */
Status = AcpiNsLoadTable (ACPI_TABLE_INDEX_DSDT, AcpiGbl_RootNode);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
/* Load any SSDT or PSDT tables. Note: Loop leaves tables locked */
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i)
{
if ((!ACPI_COMPARE_NAME (&(AcpiGbl_RootTableList.Tables[i].Signature),
ACPI_SIG_SSDT) &&
!ACPI_COMPARE_NAME (&(AcpiGbl_RootTableList.Tables[i].Signature),
ACPI_SIG_PSDT)) ||
ACPI_FAILURE (AcpiTbValidateTable (
&AcpiGbl_RootTableList.Tables[i])))
{
continue;
}
/* Ignore errors while loading tables, get as many as possible */
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
(void) AcpiNsLoadTable (i, AcpiGbl_RootNode);
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
}
ACPI_INFO ((AE_INFO, "All ACPI Tables successfully acquired"));
UnlockAndExit:
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
return_ACPI_STATUS (Status);
}
ACPI_STATUS
AcpiTbFindTable (
char *Signature,
char *OemId,
char *OemTableId,
UINT32 *TableIndex)
{
UINT32 i;
ACPI_STATUS Status;
ACPI_TABLE_HEADER Header;
ACPI_FUNCTION_TRACE (TbFindTable);
/* Normalize the input strings */
ACPI_MEMSET (&Header, 0, sizeof (ACPI_TABLE_HEADER));
ACPI_MOVE_NAME (Header.Signature, Signature);
ACPI_STRNCPY (Header.OemId, OemId, ACPI_OEM_ID_SIZE);
ACPI_STRNCPY (Header.OemTableId, OemTableId, ACPI_OEM_TABLE_ID_SIZE);
/* Search for the table */
for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i)
{
if (ACPI_MEMCMP (&(AcpiGbl_RootTableList.Tables[i].Signature),
Header.Signature, ACPI_NAME_SIZE))
{
/* Not the requested table */
continue;
}
/* Table with matching signature has been found */
if (!AcpiGbl_RootTableList.Tables[i].Pointer)
{
/* Table is not currently mapped, map it */
Status = AcpiTbValidateTable (&AcpiGbl_RootTableList.Tables[i]);
if (ACPI_FAILURE (Status))
{
return_ACPI_STATUS (Status);
}
if (!AcpiGbl_RootTableList.Tables[i].Pointer)
{
continue;
}
}
/* Check for table match on all IDs */
if (!ACPI_MEMCMP (AcpiGbl_RootTableList.Tables[i].Pointer->Signature,
Header.Signature, ACPI_NAME_SIZE) &&
(!OemId[0] ||
!ACPI_MEMCMP (AcpiGbl_RootTableList.Tables[i].Pointer->OemId,
Header.OemId, ACPI_OEM_ID_SIZE)) &&
(!OemTableId[0] ||
!ACPI_MEMCMP (AcpiGbl_RootTableList.Tables[i].Pointer->OemTableId,
Header.OemTableId, ACPI_OEM_TABLE_ID_SIZE)))
{
*TableIndex = i;
ACPI_DEBUG_PRINT ((ACPI_DB_TABLES, "Found table [%4.4s]\n",
Header.Signature));
return_ACPI_STATUS (AE_OK);
}
}
return_ACPI_STATUS (AE_NOT_FOUND);
}
ACPI_STATUS
AcpiTbInstallAndLoadTable (
ACPI_TABLE_HEADER *Table,
ACPI_PHYSICAL_ADDRESS Address,
UINT8 Flags,
BOOLEAN Override,
UINT32 *TableIndex)
{
ACPI_STATUS Status;
UINT32 i;
ACPI_OWNER_ID OwnerId;
ACPI_FUNCTION_TRACE (AcpiLoadTable);
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
/* Install the table and load it into the namespace */
Status = AcpiTbInstallStandardTable (Address, Flags, TRUE,
Override, &i);
if (ACPI_FAILURE (Status))
{
goto UnlockAndExit;
}
/*
* Note: Now table is "INSTALLED", it must be validated before
* using.
*/
Status = AcpiTbValidateTable (&AcpiGbl_RootTableList.Tables[i]);
if (ACPI_FAILURE (Status))
{
goto UnlockAndExit;
}
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
Status = AcpiNsLoadTable (i, AcpiGbl_RootNode);
/* 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 (i, &OwnerId);
if (ACPI_SUCCESS (Status))
{
AcpiEvUpdateGpes (OwnerId);
}
/* Invoke table handler if present */
if (AcpiGbl_TableHandler)
{
(void) AcpiGbl_TableHandler (ACPI_TABLE_EVENT_LOAD, Table,
AcpiGbl_TableHandlerContext);
}
(void) AcpiUtAcquireMutex (ACPI_MTX_TABLES);
UnlockAndExit:
*TableIndex = i;
(void) AcpiUtReleaseMutex (ACPI_MTX_TABLES);
return_ACPI_STATUS (Status);
}
