diff options
Diffstat (limited to 'source/components/tables/tbxfload.c')
| -rw-r--r-- | source/components/tables/tbxfload.c | 49 |
1 files changed, 48 insertions, 1 deletions
diff --git a/source/components/tables/tbxfload.c b/source/components/tables/tbxfload.c index 1e17db6c8c93..24daafcffbef 100644 --- a/source/components/tables/tbxfload.c +++ b/source/components/tables/tbxfload.c @@ -445,6 +445,8 @@ ACPI_EXPORT_SYMBOL_INIT (AcpiInstallTable) * * PARAMETERS: Table - Pointer to a buffer containing the ACPI * table to be loaded. + * TableIdx - Pointer to a UINT32 for storing the table + * index, might be NULL * * RETURN: Status * @@ -458,7 +460,8 @@ ACPI_EXPORT_SYMBOL_INIT (AcpiInstallTable) ACPI_STATUS AcpiLoadTable ( - ACPI_TABLE_HEADER *Table) + ACPI_TABLE_HEADER *Table, + UINT32 *TableIdx) { ACPI_STATUS Status; UINT32 TableIndex; @@ -479,6 +482,11 @@ AcpiLoadTable ( ACPI_INFO (("Host-directed Dynamic ACPI Table Load:")); Status = AcpiTbInstallAndLoadTable (ACPI_PTR_TO_PHYSADDR (Table), ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL, FALSE, &TableIndex); + if (TableIdx) + { + *TableIdx = TableIndex; + } + if (ACPI_SUCCESS (Status)) { /* Complete the initialization/resolution of new objects */ @@ -582,3 +590,42 @@ AcpiUnloadParentTable ( } ACPI_EXPORT_SYMBOL (AcpiUnloadParentTable) + + +/******************************************************************************* + * + * FUNCTION: AcpiUnloadTable + * + * PARAMETERS: TableIndex - Index as returned by AcpiLoadTable + * + * RETURN: Status + * + * DESCRIPTION: Via the TableIndex representing 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 +AcpiUnloadTable ( + UINT32 TableIndex) +{ + ACPI_STATUS Status; + + + ACPI_FUNCTION_TRACE (AcpiUnloadTable); + + + if (TableIndex == 1) + { + /* TableIndex==1 means DSDT is the owner. DSDT cannot be unloaded */ + + return_ACPI_STATUS (AE_TYPE); + } + + Status = AcpiTbUnloadTable (TableIndex); + return_ACPI_STATUS (Status); +} + +ACPI_EXPORT_SYMBOL (AcpiUnloadTable) |