diff options
| author | jyao1 <jyao1@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-11-30 09:03:15 +0000 |
|---|---|---|
| committer | jyao1 <jyao1@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-11-30 09:03:15 +0000 |
| commit | c93776c2d47b23b5e64691753efc7ab47ba257c0 (patch) | |
| tree | ef1006c02af3eeeec44be5e239eb4aeb265384ee /MdeModulePkg | |
| parent | 93b21ade8864d28c3cde3a93feb1ddac5b8f8469 (diff) | |
| download | edk2-platforms-c93776c2d47b23b5e64691753efc7ab47ba257c0.tar.xz | |
ACPI4.0/5.0 have clear description:
FIRMWARE_CTRL: If the X_FIRMWARE_CTRL field contains a non zero value then this field must be zero.
X_FIRMWARE_CTRL: This field is used when the physical address of the FACS is above 4GB. If the FIRMWARE_CTRL field contains a non zero value then this field must be zero.
Update code in AcpiSupport/AcpiTable when it produces this field to set one only.
Update code in AcpiS3Save when it consumes this field, check 0 value.
Signed-off-by: jiewen.yao@intel.com
Reviewed-by: star.zeng@intel.com
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13980 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg')
| -rw-r--r-- | MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableProtocol.c | 42 |
1 files changed, 27 insertions, 15 deletions
diff --git a/MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableProtocol.c b/MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableProtocol.c index 6505de8bed..dfd1669ab1 100644 --- a/MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableProtocol.c +++ b/MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTableProtocol.c @@ -1,7 +1,7 @@ /** @file
ACPI Table Protocol Implementation
- Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@@ -717,14 +717,19 @@ AddTableToList ( //
// Update pointers in FADT. If tables don't exist this will put NULL pointers there.
+ // Note: If the FIRMWARE_CTRL is non-zero, then X_FIRMWARE_CTRL must be zero, and
+ // vice-versa.
//
- AcpiTableInstance->Fadt3->FirmwareCtrl = (UINT32) (UINTN) AcpiTableInstance->Facs3;
- Buffer64 = (UINT64) (UINTN) AcpiTableInstance->Facs3;
- CopyMem (
- &AcpiTableInstance->Fadt3->XFirmwareCtrl,
- &Buffer64,
- sizeof (UINT64)
- );
+ if ((UINT64)(UINTN)AcpiSupportInstance->Facs3 < BASE_4GB) {
+ AcpiTableInstance->Fadt3->FirmwareCtrl = (UINT32) (UINTN) AcpiTableInstance->Facs3;
+ } else {
+ Buffer64 = (UINT64) (UINTN) AcpiTableInstance->Facs3;
+ CopyMem (
+ &AcpiTableInstance->Fadt3->XFirmwareCtrl,
+ &Buffer64,
+ sizeof (UINT64)
+ );
+ }
AcpiTableInstance->Fadt3->Dsdt = (UINT32) (UINTN) AcpiTableInstance->Dsdt3;
Buffer64 = (UINT64) (UINTN) AcpiTableInstance->Dsdt3;
CopyMem (
@@ -840,13 +845,20 @@ AddTableToList ( // If FADT already exists, update table pointers.
//
if (AcpiTableInstance->Fadt3 != NULL) {
- AcpiTableInstance->Fadt3->FirmwareCtrl = (UINT32) (UINTN) AcpiTableInstance->Facs3;
- Buffer64 = (UINT64) (UINTN) AcpiTableInstance->Facs3;
- CopyMem (
- &AcpiTableInstance->Fadt3->XFirmwareCtrl,
- &Buffer64,
- sizeof (UINT64)
- );
+ //
+ // Note: If the FIRMWARE_CTRL is non-zero, then X_FIRMWARE_CTRL must be zero, and
+ // vice-versa.
+ //
+ if ((UINT64)(UINTN)AcpiSupportInstance->Facs3 < BASE_4GB) {
+ AcpiTableInstance->Fadt3->FirmwareCtrl = (UINT32) (UINTN) AcpiTableInstance->Facs3;
+ } else {
+ Buffer64 = (UINT64) (UINTN) AcpiTableInstance->Facs3;
+ CopyMem (
+ &AcpiTableInstance->Fadt3->XFirmwareCtrl,
+ &Buffer64,
+ sizeof (UINT64)
+ );
+ }
//
// Checksum FADT table
|