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ACPICA: New common routine for creating a local FADT and verifying it.

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This commit is contained in:
rmoore1 2006-09-12 16:30:15 +00:00
parent 09f06978d7
commit 0c9ed4f423
3 changed files with 71 additions and 54 deletions
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21
source/common/dmtbdump.c
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@ -1,7 +1,7 @@
/******************************************************************************
*
* Module Name: dmtbdump - Dump ACPI data tables that contain no AML code
* $Revision: 1.12 $
* $Revision: 1.13 $
*
*****************************************************************************/
@ -267,24 +267,9 @@ AcpiDmDumpFadt (
AcpiDmDumpTable (Table->Length, 0, Table, 0, AcpiDmTableInfoFadt2);
}
if (Table->Length > sizeof (ACPI_TABLE_FADT))
{
AcpiOsPrintf ("**** Table is longer (%X) than ACPI 2.0 FADT (%X) ****\n",
Table->Length, sizeof (ACPI_TABLE_FADT));
}
/* Validate various fields in the FADT, including length */
/* Validate the FADT */
ACPI_MEMSET (&AcpiGbl_FADT, 0, sizeof (ACPI_TABLE_FADT));
ACPI_MEMCPY (&AcpiGbl_FADT, Table,
ACPI_MIN (Table->Length, sizeof (ACPI_TABLE_FADT)));
/*
* 1) Convert the local copy of the FADT to the common internal format
* 2) Validate some of the important values within the FADT
*/
AcpiTbConvertFadt ();
AcpiTbValidateFadt (&AcpiGbl_FADT);
AcpiTbCreateLocalFadt (Table, Table->Length);
}

93
source/components/tables/tbfadt.c
View File

@ -1,7 +1,7 @@
/******************************************************************************
*
* Module Name: tbfadt - FADT table utilities
* $Revision: 1.3 $
* $Revision: 1.4 $
*
*****************************************************************************/
@ -130,6 +130,14 @@ AcpiTbInitGenericAddress (
UINT8 BitWidth,
UINT64 Address);
static void
AcpiTbConvertFadt (
void);
static void
AcpiTbValidateFadt (
void);
/* Table for conversion of FADT to common internal format and FADT validation */
@ -267,34 +275,14 @@ AcpiTbParseFadt (
*/
(void) AcpiTbVerifyChecksum (Table, Length);
/*
* If the FADT is larger than what we know about, we have a problem.
* Truncate the table, but make some noise.
*/
if (Length > sizeof (ACPI_TABLE_FADT))
{
ACPI_WARNING ((AE_INFO,
"FADT (revision %u) is too large, truncating length 0x%X to 0x%X",
Table->Revision, Length, sizeof (ACPI_TABLE_FADT)));
}
/* Obtain a local copy of the FADT in common ACPI 2.0+ format */
/* Copy the entire FADT locally. Zero first for TbConvertFadt */
ACPI_MEMSET (&AcpiGbl_FADT, 0, sizeof (ACPI_TABLE_FADT));
ACPI_MEMCPY (&AcpiGbl_FADT, Table,
ACPI_MIN (Length, sizeof (ACPI_TABLE_FADT)));
AcpiTbCreateLocalFadt (Table, Length);
/* All done with the real FADT, unmap it */
AcpiOsUnmapMemory (Table, Length);
/*
* 1) Convert the local copy of the FADT to the common internal format
* 2) Validate some of the important values within the FADT
*/
AcpiTbConvertFadt ();
AcpiTbValidateFadt (&AcpiGbl_FADT);
/* Obtain the DSDT and FACS tables via their addresses within the FADT */
AcpiTbInstallTable ((ACPI_PHYSICAL_ADDRESS) AcpiGbl_FADT.XDsdt,
@ -305,6 +293,53 @@ AcpiTbParseFadt (
}
/*******************************************************************************
*
* FUNCTION: AcpiTbCreateLocalFadt
*
* PARAMETERS: Table - Pointer to BIOS FADT
* Length - Length of the table
*
* RETURN: None
*
* DESCRIPTION: Get a local copy of the FADT and convert it to a common format.
* Performs validation on some important FADT fields.
*
******************************************************************************/
void
AcpiTbCreateLocalFadt (
ACPI_TABLE_HEADER *Table,
UINT32 Length)
{
/*
* Check if the FADT is larger than what we know about (ACPI 2.0 version).
* Truncate the table, but make some noise.
*/
if (Length > sizeof (ACPI_TABLE_FADT))
{
ACPI_WARNING ((AE_INFO,
"FADT (revision %u) is longer than ACPI 2.0 version, truncating length 0x%X to 0x%X",
Table->Revision, Length, sizeof (ACPI_TABLE_FADT)));
}
/* Copy the entire FADT locally. Zero first for TbConvertFadt */
ACPI_MEMSET (&AcpiGbl_FADT, 0, sizeof (ACPI_TABLE_FADT));
ACPI_MEMCPY (&AcpiGbl_FADT, Table,
ACPI_MIN (Length, sizeof (ACPI_TABLE_FADT)));
/*
* 1) Convert the local copy of the FADT to the common internal format
* 2) Validate some of the important values within the FADT
*/
AcpiTbConvertFadt ();
AcpiTbValidateFadt ();
}
/*******************************************************************************
*
* FUNCTION: AcpiTbConvertFadt
@ -334,7 +369,7 @@ AcpiTbParseFadt (
*
******************************************************************************/
void
static void
AcpiTbConvertFadt (
void)
{
@ -424,9 +459,9 @@ AcpiTbConvertFadt (
*
******************************************************************************/
void
static void
AcpiTbValidateFadt (
ACPI_TABLE_FADT *Table)
void)
{
UINT32 *Address32;
ACPI_GENERIC_ADDRESS *Address64;
@ -440,9 +475,9 @@ AcpiTbValidateFadt (
{
/* Generate pointers to the 32-bit and 64-bit addresses and get the length */
Address64 = ACPI_ADD_PTR (ACPI_GENERIC_ADDRESS, Table, FadtInfoTable[i].Target);
Address32 = ACPI_ADD_PTR (UINT32, Table, FadtInfoTable[i].Source);
Length = *ACPI_ADD_PTR (UINT8, Table, FadtInfoTable[i].Length);
Address64 = ACPI_ADD_PTR (ACPI_GENERIC_ADDRESS, &AcpiGbl_FADT, FadtInfoTable[i].Target);
Address32 = ACPI_ADD_PTR (UINT32, &AcpiGbl_FADT, FadtInfoTable[i].Source);
Length = *ACPI_ADD_PTR (UINT8, &AcpiGbl_FADT, FadtInfoTable[i].Length);
if (FadtInfoTable[i].Type & ACPI_FADT_REQUIRED)
{

11
source/include/actables.h
View File

@ -1,7 +1,7 @@
/******************************************************************************
*
* Name: actables.h - ACPI table management
* $Revision: 1.60 $
* $Revision: 1.61 $
*
*****************************************************************************/
@ -131,12 +131,9 @@ AcpiTbParseFadt (
UINT8 Flags);
void
AcpiTbConvertFadt (
void);
void
AcpiTbValidateFadt (
ACPI_TABLE_FADT *Table);
AcpiTbCreateLocalFadt (
ACPI_TABLE_HEADER *Table,
UINT32 Length);
/*