ACPI_STATUS
AcpiTbConvertTableFadt (void)
{
FADT_DESCRIPTOR_REV2 *LocalFadt;
ACPI_TABLE_DESC *TableDesc;
ACPI_FUNCTION_TRACE ("TbConvertTableFadt");
/*
* AcpiGbl_FADT is valid
* Allocate and zero the 2.0 FADT buffer
*/
LocalFadt = ACPI_MEM_CALLOCATE (sizeof (FADT_DESCRIPTOR_REV2));
if (LocalFadt == NULL)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
/*
* FADT length and version validation. The table must be at least as
* long as the version 1.0 FADT
*/
if (AcpiGbl_FADT->Header.Length < sizeof (FADT_DESCRIPTOR_REV1))
{
ACPI_REPORT_ERROR (("Invalid FADT table length: 0x%X\n", AcpiGbl_FADT->Header.Length));
return_ACPI_STATUS (AE_INVALID_TABLE_LENGTH);
}
if (AcpiGbl_FADT->Header.Revision >= FADT2_REVISION_ID)
{
if (AcpiGbl_FADT->Header.Length < sizeof (FADT_DESCRIPTOR_REV2))
{
/* Length is too short to be a V2.0 table */
ACPI_REPORT_WARNING (("Inconsistent FADT length (0x%X) and revision (0x%X), using FADT V1.0 portion of table\n",
AcpiGbl_FADT->Header.Length, AcpiGbl_FADT->Header.Revision));
AcpiTbConvertFadt1 (LocalFadt, (void *) AcpiGbl_FADT);
}
else
{
/* Valid V2.0 table */
AcpiTbConvertFadt2 (LocalFadt, AcpiGbl_FADT);
}
}
else
{
/* Valid V1.0 table */
AcpiTbConvertFadt1 (LocalFadt, (void *) AcpiGbl_FADT);
}
/*
* Global FADT pointer will point to the new common V2.0 FADT
*/
AcpiGbl_FADT = LocalFadt;
AcpiGbl_FADT->Header.Length = sizeof (FADT_DESCRIPTOR);
/* Free the original table */
TableDesc = &AcpiGbl_AcpiTables[ACPI_TABLE_FADT];
AcpiTbDeleteSingleTable (TableDesc);
/* Install the new table */
TableDesc->Pointer = (ACPI_TABLE_HEADER *) AcpiGbl_FADT;
TableDesc->Allocation = ACPI_MEM_ALLOCATED;
TableDesc->Length = sizeof (FADT_DESCRIPTOR_REV2);
/* Dump the entire FADT */
ACPI_DEBUG_PRINT ((ACPI_DB_TABLES,
"Hex dump of common internal FADT, size %d (%X)\n",
AcpiGbl_FADT->Header.Length, AcpiGbl_FADT->Header.Length));
ACPI_DUMP_BUFFER ((UINT8 *) (AcpiGbl_FADT), AcpiGbl_FADT->Header.Length);
return_ACPI_STATUS (AE_OK);
}
ACPI_STATUS
AcpiTbConvertTableFadt (
void)
{
FADT_DESCRIPTOR *LocalFadt;
ACPI_TABLE_DESC *TableDesc;
ACPI_FUNCTION_TRACE (TbConvertTableFadt);
/*
* AcpiGbl_FADT is valid. Validate the FADT length. The table must be
* at least as long as the version 1.0 FADT
*/
if (AcpiGbl_FADT->Length < sizeof (FADT_DESCRIPTOR_REV1))
{
ACPI_ERROR ((AE_INFO, "FADT is invalid, too short: 0x%X",
AcpiGbl_FADT->Length));
return_ACPI_STATUS (AE_INVALID_TABLE_LENGTH);
}
/* Allocate buffer for the ACPI 2.0(+) FADT */
LocalFadt = ACPI_ALLOCATE_ZEROED (sizeof (FADT_DESCRIPTOR));
if (!LocalFadt)
{
return_ACPI_STATUS (AE_NO_MEMORY);
}
if (AcpiGbl_FADT->Revision >= FADT2_REVISION_ID)
{
if (AcpiGbl_FADT->Length < sizeof (FADT_DESCRIPTOR))
{
/* Length is too short to be a V2.0 table */
ACPI_WARNING ((AE_INFO,
"Inconsistent FADT length (0x%X) and revision (0x%X), using FADT V1.0 portion of table",
AcpiGbl_FADT->Length, AcpiGbl_FADT->Revision));
AcpiTbConvertFadt1 (LocalFadt, (void *) AcpiGbl_FADT);
}
else
{
/* Valid V2.0 table */
AcpiTbConvertFadt2 (LocalFadt, AcpiGbl_FADT);
}
}
else
{
/* Valid V1.0 table */
AcpiTbConvertFadt1 (LocalFadt, (void *) AcpiGbl_FADT);
}
/* Global FADT pointer will point to the new common V2.0 FADT */
AcpiGbl_FADT = LocalFadt;
AcpiGbl_FADT->Length = sizeof (FADT_DESCRIPTOR);
/* Free the original table */
TableDesc = AcpiGbl_TableLists[ACPI_TABLE_ID_FADT].Next;
AcpiTbDeleteSingleTable (TableDesc);
/* Install the new table */
TableDesc->Pointer = ACPI_CAST_PTR (ACPI_TABLE_HEADER, AcpiGbl_FADT);
TableDesc->Allocation = ACPI_MEM_ALLOCATED;
TableDesc->Length = sizeof (FADT_DESCRIPTOR);
/* Dump the entire FADT */
ACPI_DEBUG_PRINT ((ACPI_DB_TABLES,
"Hex dump of common internal FADT, size %d (%X)\n",
AcpiGbl_FADT->Length, AcpiGbl_FADT->Length));
ACPI_DUMP_BUFFER (ACPI_CAST_PTR (UINT8, AcpiGbl_FADT),
AcpiGbl_FADT->Length);
return_ACPI_STATUS (AE_OK);
}
