diff options
Diffstat (limited to 'source/components/tables')
| -rw-r--r-- | source/components/tables/tbfadt.c | 31 | ||||
| -rw-r--r-- | source/components/tables/tbinstal.c | 5 | ||||
| -rw-r--r-- | source/components/tables/tbutils.c | 17 | ||||
| -rw-r--r-- | source/components/tables/tbxface.c | 159 | ||||
| -rw-r--r-- | source/components/tables/tbxfload.c | 406 | ||||
| -rw-r--r-- | source/components/tables/tbxfroot.c | 2 |
6 files changed, 437 insertions, 183 deletions
diff --git a/source/components/tables/tbfadt.c b/source/components/tables/tbfadt.c index 4692511..0bc6f28 100644 --- a/source/components/tables/tbfadt.c +++ b/source/components/tables/tbfadt.c @@ -192,7 +192,7 @@ static ACPI_FADT_PM_INFO FadtPmInfoTable[] = * * PARAMETERS: GenericAddress - GAS struct to be initialized * SpaceId - ACPI Space ID for this register - * ByteWidth - Width of this register, in bytes + * ByteWidth - Width of this register * Address - Address of the register * * RETURN: None @@ -338,7 +338,7 @@ AcpiTbCreateLocalFadt ( */ if (Length > sizeof (ACPI_TABLE_FADT)) { - ACPI_WARNING ((AE_INFO, + ACPI_BIOS_WARNING ((AE_INFO, "FADT (revision %u) is longer than ACPI 5.0 version, " "truncating length %u to %u", Table->Revision, Length, (UINT32) sizeof (ACPI_TABLE_FADT))); @@ -486,8 +486,9 @@ AcpiTbConvertFadt ( if (Address64->Address && Address32 && (Address64->Address != (UINT64) Address32)) { - ACPI_ERROR ((AE_INFO, - "32/64X address mismatch in %s: 0x%8.8X/0x%8.8X%8.8X, using 32", + ACPI_BIOS_ERROR ((AE_INFO, + "32/64X address mismatch in FADT/%s: " + "0x%8.8X/0x%8.8X%8.8X, using 32", FadtInfoTable[i].Name, Address32, ACPI_FORMAT_UINT64 (Address64->Address))); } @@ -546,7 +547,7 @@ AcpiTbValidateFadt ( if (AcpiGbl_FADT.Facs && (AcpiGbl_FADT.XFacs != (UINT64) AcpiGbl_FADT.Facs)) { - ACPI_WARNING ((AE_INFO, + ACPI_BIOS_WARNING ((AE_INFO, "32/64X FACS address mismatch in FADT - " "0x%8.8X/0x%8.8X%8.8X, using 32", AcpiGbl_FADT.Facs, ACPI_FORMAT_UINT64 (AcpiGbl_FADT.XFacs))); @@ -557,7 +558,7 @@ AcpiTbValidateFadt ( if (AcpiGbl_FADT.Dsdt && (AcpiGbl_FADT.XDsdt != (UINT64) AcpiGbl_FADT.Dsdt)) { - ACPI_WARNING ((AE_INFO, + ACPI_BIOS_WARNING ((AE_INFO, "32/64X DSDT address mismatch in FADT - " "0x%8.8X/0x%8.8X%8.8X, using 32", AcpiGbl_FADT.Dsdt, ACPI_FORMAT_UINT64 (AcpiGbl_FADT.XDsdt))); @@ -593,8 +594,8 @@ AcpiTbValidateFadt ( if (Address64->Address && (Address64->BitWidth != ACPI_MUL_8 (Length))) { - ACPI_WARNING ((AE_INFO, - "32/64X length mismatch in %s: %u/%u", + ACPI_BIOS_WARNING ((AE_INFO, + "32/64X length mismatch in FADT/%s: %u/%u", Name, ACPI_MUL_8 (Length), Address64->BitWidth)); } @@ -606,9 +607,9 @@ AcpiTbValidateFadt ( */ if (!Address64->Address || !Length) { - ACPI_ERROR ((AE_INFO, - "Required field %s has zero address and/or length:" - " 0x%8.8X%8.8X/0x%X", + ACPI_BIOS_ERROR ((AE_INFO, + "Required FADT field %s has zero address and/or length: " + "0x%8.8X%8.8X/0x%X", Name, ACPI_FORMAT_UINT64 (Address64->Address), Length)); } } @@ -622,8 +623,8 @@ AcpiTbValidateFadt ( if ((Address64->Address && !Length) || (!Address64->Address && Length)) { - ACPI_WARNING ((AE_INFO, - "Optional field %s has zero address or length: " + ACPI_BIOS_WARNING ((AE_INFO, + "Optional FADT field %s has zero address or length: " "0x%8.8X%8.8X/0x%X", Name, ACPI_FORMAT_UINT64 (Address64->Address), Length)); } @@ -674,8 +675,8 @@ AcpiTbSetupFadtRegisters ( (FadtInfoTable[i].DefaultLength > 0) && (FadtInfoTable[i].DefaultLength != Target64->BitWidth)) { - ACPI_WARNING ((AE_INFO, - "Invalid length for %s: %u, using default %u", + ACPI_BIOS_WARNING ((AE_INFO, + "Invalid length for FADT/%s: %u, using default %u", FadtInfoTable[i].Name, Target64->BitWidth, FadtInfoTable[i].DefaultLength)); diff --git a/source/components/tables/tbinstal.c b/source/components/tables/tbinstal.c index f100ab4..648ee75 100644 --- a/source/components/tables/tbinstal.c +++ b/source/components/tables/tbinstal.c @@ -157,8 +157,9 @@ AcpiTbAddTable ( (!ACPI_COMPARE_NAME (TableDesc->Pointer->Signature, ACPI_SIG_SSDT)) && (ACPI_STRNCMP (TableDesc->Pointer->Signature, "OEM", 3))) { - ACPI_ERROR ((AE_INFO, - "Table has invalid signature [%4.4s] (0x%8.8X), must be SSDT or OEMx", + ACPI_BIOS_ERROR ((AE_INFO, + "Table has invalid signature [%4.4s] (0x%8.8X), " + "must be SSDT or OEMx", AcpiUtValidAcpiName (*(UINT32 *) TableDesc->Pointer->Signature) ? TableDesc->Pointer->Signature : "????", *(UINT32 *) TableDesc->Pointer->Signature)); diff --git a/source/components/tables/tbutils.c b/source/components/tables/tbutils.c index e8b5705..c0a9456 100644 --- a/source/components/tables/tbutils.c +++ b/source/components/tables/tbutils.c @@ -287,8 +287,9 @@ AcpiTbVerifyChecksum ( if (Checksum) { - ACPI_WARNING ((AE_INFO, - "Incorrect checksum in table [%4.4s] - 0x%2.2X, should be 0x%2.2X", + ACPI_BIOS_WARNING ((AE_INFO, + "Incorrect checksum in table [%4.4s] - 0x%2.2X, " + "should be 0x%2.2X", Table->Signature, Table->Checksum, (UINT8) (Table->Checksum - Checksum))); @@ -356,8 +357,9 @@ AcpiTbCheckDsdtHeader ( if (AcpiGbl_OriginalDsdtHeader.Length != AcpiGbl_DSDT->Length || AcpiGbl_OriginalDsdtHeader.Checksum != AcpiGbl_DSDT->Checksum) { - ACPI_ERROR ((AE_INFO, - "The DSDT has been corrupted or replaced - old, new headers below")); + ACPI_BIOS_ERROR ((AE_INFO, + "The DSDT has been corrupted or replaced - " + "old, new headers below")); AcpiTbPrintTableHeader (0, &AcpiGbl_OriginalDsdtHeader); AcpiTbPrintTableHeader (0, AcpiGbl_DSDT); @@ -465,7 +467,7 @@ AcpiTbInstallTable ( if (Signature && !ACPI_COMPARE_NAME (Table->Signature, Signature)) { - ACPI_ERROR ((AE_INFO, + ACPI_BIOS_ERROR ((AE_INFO, "Invalid signature 0x%X for ACPI table, expected [%s]", *ACPI_CAST_PTR (UINT32, Table->Signature), Signature)); goto UnmapAndExit; @@ -584,7 +586,7 @@ AcpiTbGetRootTableEntry ( { /* Will truncate 64-bit address to 32 bits, issue warning */ - ACPI_WARNING ((AE_INFO, + ACPI_BIOS_WARNING ((AE_INFO, "64-bit Physical Address in XSDT is too large (0x%8.8X%8.8X)," " truncating", ACPI_FORMAT_UINT64 (Address64))); @@ -686,7 +688,8 @@ AcpiTbParseRootTable ( if (Length < sizeof (ACPI_TABLE_HEADER)) { - ACPI_ERROR ((AE_INFO, "Invalid length 0x%X in RSDT/XSDT", Length)); + ACPI_BIOS_ERROR ((AE_INFO, + "Invalid table length 0x%X in RSDT/XSDT", Length)); return_ACPI_STATUS (AE_INVALID_TABLE_LENGTH); } diff --git a/source/components/tables/tbxface.c b/source/components/tables/tbxface.c index 58dae69..fcc44f3 100644 --- a/source/components/tables/tbxface.c +++ b/source/components/tables/tbxface.c @@ -1,7 +1,6 @@ /****************************************************************************** * - * Module Name: tbxface - Public interfaces to the ACPI subsystem - * ACPI table oriented interfaces + * Module Name: tbxface - ACPI table oriented external interfaces * *****************************************************************************/ @@ -46,18 +45,11 @@ #include "acpi.h" #include "accommon.h" -#include "acnamesp.h" #include "actables.h" #define _COMPONENT ACPI_TABLES ACPI_MODULE_NAME ("tbxface") -/* Local prototypes */ - -static ACPI_STATUS -AcpiTbLoadNamespace ( - void); - /******************************************************************************* * @@ -458,155 +450,6 @@ ACPI_EXPORT_SYMBOL (AcpiGetTableByIndex) /******************************************************************************* * - * FUNCTION: AcpiTbLoadNamespace - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Load the namespace from the DSDT and all SSDTs/PSDTs found in - * the RSDT/XSDT. - * - ******************************************************************************/ - -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 (AcpiTbVerifyTable ( - &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 AcpiTbVerifyTable. - */ - 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 (AcpiTbVerifyTable ( - &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_DEBUG_PRINT ((ACPI_DB_INIT, "ACPI Tables successfully acquired\n")); - -UnlockAndExit: - (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); - return_ACPI_STATUS (Status); -} - - -/******************************************************************************* - * - * FUNCTION: AcpiLoadTables - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Load the ACPI tables from the RSDT/XSDT - * - ******************************************************************************/ - -ACPI_STATUS -AcpiLoadTables ( - void) -{ - ACPI_STATUS Status; - - - ACPI_FUNCTION_TRACE (AcpiLoadTables); - - - /* Load the namespace from the tables */ - - Status = AcpiTbLoadNamespace (); - if (ACPI_FAILURE (Status)) - { - ACPI_EXCEPTION ((AE_INFO, Status, - "While loading namespace from ACPI tables")); - } - - return_ACPI_STATUS (Status); -} - -ACPI_EXPORT_SYMBOL (AcpiLoadTables) - - -/******************************************************************************* - * * FUNCTION: AcpiInstallTableHandler * * PARAMETERS: Handler - Table event handler diff --git a/source/components/tables/tbxfload.c b/source/components/tables/tbxfload.c new file mode 100644 index 0000000..2883bab --- /dev/null +++ b/source/components/tables/tbxfload.c @@ -0,0 +1,406 @@ +/****************************************************************************** + * + * Module Name: tbxfload - Table load/unload external interfaces + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2012, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#define __TBXFLOAD_C__ + +#include "acpi.h" +#include "accommon.h" +#include "acnamesp.h" +#include "actables.h" + +#define _COMPONENT ACPI_TABLES + ACPI_MODULE_NAME ("tbxfload") + +/* Local prototypes */ + +static ACPI_STATUS +AcpiTbLoadNamespace ( + void); + + +/******************************************************************************* + * + * FUNCTION: AcpiLoadTables + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Load the ACPI tables from the RSDT/XSDT + * + ******************************************************************************/ + +ACPI_STATUS +AcpiLoadTables ( + void) +{ + ACPI_STATUS Status; + + + ACPI_FUNCTION_TRACE (AcpiLoadTables); + + + /* Load the namespace from the tables */ + + Status = AcpiTbLoadNamespace (); + if (ACPI_FAILURE (Status)) + { + ACPI_EXCEPTION ((AE_INFO, Status, + "While loading namespace from ACPI tables")); + } + + return_ACPI_STATUS (Status); +} + +ACPI_EXPORT_SYMBOL (AcpiLoadTables) + + +/******************************************************************************* + * + * FUNCTION: AcpiTbLoadNamespace + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Load the namespace from the DSDT and all SSDTs/PSDTs found in + * the RSDT/XSDT. + * + ******************************************************************************/ + +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 (AcpiTbVerifyTable ( + &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 AcpiTbVerifyTable. + */ + 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 (AcpiTbVerifyTable ( + &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_DEBUG_PRINT ((ACPI_DB_INIT, "ACPI Tables successfully acquired\n")); + +UnlockAndExit: + (void) AcpiUtReleaseMutex (ACPI_MTX_TABLES); + return_ACPI_STATUS (Status); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiLoadTable + * + * PARAMETERS: Table - Pointer to a buffer containing the ACPI + * table to be loaded. + * + * RETURN: Status + * + * DESCRIPTION: Dynamically load an ACPI table from the caller's buffer. Must + * be a valid ACPI table with a valid ACPI table header. + * Note1: Mainly intended to support hotplug addition of SSDTs. + * Note2: Does not copy the incoming table. User is reponsible + * to ensure that the table is not deleted or unmapped. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiLoadTable ( + ACPI_TABLE_HEADER *Table) +{ + ACPI_STATUS Status; + ACPI_TABLE_DESC TableDesc; + UINT32 TableIndex; + + + ACPI_FUNCTION_TRACE (AcpiLoadTable); + + + /* Parameter validation */ + + if (!Table) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* Init local table descriptor */ + + ACPI_MEMSET (&TableDesc, 0, sizeof (ACPI_TABLE_DESC)); + TableDesc.Address = ACPI_PTR_TO_PHYSADDR (Table); + TableDesc.Pointer = Table; + TableDesc.Length = Table->Length; + TableDesc.Flags = ACPI_TABLE_ORIGIN_UNKNOWN; + + /* 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 ((AE_INFO, "Host-directed Dynamic ACPI Table Load:")); + Status = AcpiTbAddTable (&TableDesc, &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_EXPORT_SYMBOL (AcpiLoadTable) + + +/******************************************************************************* + * + * FUNCTION: AcpiUnloadParentTable + * + * PARAMETERS: Object - Handle to any namespace object owned by + * the table to be unloaded + * + * RETURN: Status + * + * DESCRIPTION: Via any namespace object within an SSDT or OEMx table, unloads + * the table and deletes all namespace objects associated with + * that table. Unloading of the DSDT is not allowed. + * Note: Mainly intended to support hotplug removal of SSDTs. + * + ******************************************************************************/ + +ACPI_STATUS +AcpiUnloadParentTable ( + ACPI_HANDLE Object) +{ + ACPI_NAMESPACE_NODE *Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, Object); + ACPI_STATUS Status = AE_NOT_EXIST; + ACPI_OWNER_ID OwnerId; + UINT32 i; + + + ACPI_FUNCTION_TRACE (AcpiUnloadParentTable); + + + /* Parameter validation */ + + if (!Object) + { + return_ACPI_STATUS (AE_BAD_PARAMETER); + } + + /* + * The node OwnerId is currently the same as the parent table ID. + * However, this could change in the future. + */ + OwnerId = Node->OwnerId; + if (!OwnerId) + { + /* OwnerId==0 means DSDT is the owner. DSDT cannot be unloaded */ + + return_ACPI_STATUS (AE_TYPE); + } + + /* Must acquire the interpreter lock during this operation */ + + Status = AcpiUtAcquireMutex (ACPI_MTX_INTERPRETER); + if (ACPI_FAILURE (Status)) + { + return_ACPI_STATUS (Status); + } + + /* Find the table in the global table list */ + + for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; i++) + { + if (OwnerId != AcpiGbl_RootTableList.Tables[i].OwnerId) + { + continue; + } + + /* + * Allow unload of SSDT and OEMx tables only. Do not allow unload + * of the DSDT. No other types of tables should get here, since + * only these types can contain AML and thus are the only types + * that can create namespace objects. + */ + if (ACPI_COMPARE_NAME ( + AcpiGbl_RootTableList.Tables[i].Signature.Ascii, + ACPI_SIG_DSDT)) + { + Status = AE_TYPE; + break; + } + + /* Ensure the table is actually loaded */ + + if (!AcpiTbIsTableLoaded (i)) + { + Status = AE_NOT_EXIST; + break; + } + + /* Invoke table handler if present */ + + if (AcpiGbl_TableHandler) + { + (void) AcpiGbl_TableHandler (ACPI_TABLE_EVENT_UNLOAD, + AcpiGbl_RootTableList.Tables[i].Pointer, + AcpiGbl_TableHandlerContext); + } + + /* + * Delete all namespace objects owned by this table. Note that + * these objects can appear anywhere in the namespace by virtue + * of the AML "Scope" operator. Thus, we need to track ownership + * by an ID, not simply a position within the hierarchy. + */ + Status = AcpiTbDeleteNamespaceByOwner (i); + if (ACPI_FAILURE (Status)) + { + break; + } + + Status = AcpiTbReleaseOwnerId (i); + AcpiTbSetTableLoadedFlag (i, FALSE); + break; + } + + (void) AcpiUtReleaseMutex (ACPI_MTX_INTERPRETER); + return_ACPI_STATUS (Status); +} + +ACPI_EXPORT_SYMBOL (AcpiUnloadParentTable) diff --git a/source/components/tables/tbxfroot.c b/source/components/tables/tbxfroot.c index 17e52ef..604f4d0 100644 --- a/source/components/tables/tbxfroot.c +++ b/source/components/tables/tbxfroot.c @@ -234,7 +234,7 @@ AcpiFindRootPointer ( /* A valid RSDP was not found */ - ACPI_ERROR ((AE_INFO, "A valid RSDP was not found")); + ACPI_BIOS_ERROR ((AE_INFO, "A valid RSDP was not found")); return_ACPI_STATUS (AE_NOT_FOUND); } |
