diff options
| -rw-r--r-- | OvmfPkg/AcpiPlatformDxe/Qemu.c | 106 | ||||
| -rw-r--r-- | OvmfPkg/AcpiTables/AcpiTables.inf | 1 | ||||
| -rw-r--r-- | OvmfPkg/AcpiTables/Ssdt.asl | 19 |
3 files changed, 125 insertions, 1 deletions
diff --git a/OvmfPkg/AcpiPlatformDxe/Qemu.c b/OvmfPkg/AcpiPlatformDxe/Qemu.c index f7736c2b7..708873390 100644 --- a/OvmfPkg/AcpiPlatformDxe/Qemu.c +++ b/OvmfPkg/AcpiPlatformDxe/Qemu.c @@ -10,7 +10,7 @@ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-**/
+**/
#include "AcpiPlatform.h"
#include <Library/BaseMemoryLib.h>
@@ -98,6 +98,107 @@ QemuInstallAcpiMadtTable ( }
+#pragma pack(1)
+
+typedef struct {
+ UINT64 Base;
+ UINT64 End;
+ UINT64 Length;
+} PCI_WINDOW;
+
+typedef struct {
+ PCI_WINDOW PciWindow32;
+ PCI_WINDOW PciWindow64;
+} FIRMWARE_DATA;
+
+#pragma pack()
+
+
+STATIC
+EFI_STATUS
+EFIAPI
+PopulateFwData(
+ OUT FIRMWARE_DATA *FwData
+ )
+{
+ return EFI_SUCCESS;
+}
+
+
+STATIC
+EFI_STATUS
+EFIAPI
+QemuInstallAcpiSsdtTable (
+ IN EFI_ACPI_TABLE_PROTOCOL *AcpiProtocol,
+ IN VOID *AcpiTableBuffer,
+ IN UINTN AcpiTableBufferSize,
+ OUT UINTN *TableKey
+ )
+{
+ EFI_STATUS Status;
+ FIRMWARE_DATA *FwData;
+
+ Status = EFI_OUT_OF_RESOURCES;
+
+ FwData = AllocateReservedPool (sizeof (*FwData));
+ if (FwData != NULL) {
+ UINTN SsdtSize;
+ UINT8 *Ssdt;
+
+ SsdtSize = AcpiTableBufferSize + 17;
+ Ssdt = AllocatePool (SsdtSize);
+
+ if (Ssdt != NULL) {
+ Status = PopulateFwData (FwData);
+
+ if (Status == EFI_SUCCESS) {
+ UINT8 *SsdtPtr;
+
+ SsdtPtr = Ssdt;
+
+ CopyMem (SsdtPtr, AcpiTableBuffer, AcpiTableBufferSize);
+ SsdtPtr += AcpiTableBufferSize;
+
+ //
+ // build "OperationRegion(FWDT, SystemMemory, 0x12345678, 0x87654321)"
+ //
+ *(SsdtPtr++) = 0x5B; // ExtOpPrefix
+ *(SsdtPtr++) = 0x80; // OpRegionOp
+ *(SsdtPtr++) = 'F';
+ *(SsdtPtr++) = 'W';
+ *(SsdtPtr++) = 'D';
+ *(SsdtPtr++) = 'T';
+ *(SsdtPtr++) = 0x00; // SystemMemory
+ *(SsdtPtr++) = 0x0C; // DWordPrefix
+
+ //
+ // no virtual addressing yet, take the four least significant bytes
+ //
+ CopyMem(SsdtPtr, &FwData, 4);
+ SsdtPtr += 4;
+
+ *(SsdtPtr++) = 0x0C; // DWordPrefix
+
+ *(UINT32*) SsdtPtr = sizeof (*FwData);
+ SsdtPtr += 4;
+
+ ASSERT(SsdtPtr - Ssdt == SsdtSize);
+ ((EFI_ACPI_DESCRIPTION_HEADER *) Ssdt)->Length = SsdtSize;
+ Status = InstallAcpiTable (AcpiProtocol, Ssdt, SsdtSize, TableKey);
+ }
+
+ FreePool(Ssdt);
+ }
+
+ if (Status != EFI_SUCCESS) {
+ FreePool(FwData);
+ }
+ }
+
+ return Status;
+}
+
+
EFI_STATUS
EFIAPI
QemuInstallAcpiTable (
@@ -115,6 +216,9 @@ QemuInstallAcpiTable ( case EFI_ACPI_1_0_APIC_SIGNATURE:
TableInstallFunction = QemuInstallAcpiMadtTable;
break;
+ case EFI_ACPI_1_0_SECONDARY_SYSTEM_DESCRIPTION_TABLE_SIGNATURE:
+ TableInstallFunction = QemuInstallAcpiSsdtTable;
+ break;
default:
TableInstallFunction = InstallAcpiTable;
}
diff --git a/OvmfPkg/AcpiTables/AcpiTables.inf b/OvmfPkg/AcpiTables/AcpiTables.inf index 0f61df45b..1187a145e 100644 --- a/OvmfPkg/AcpiTables/AcpiTables.inf +++ b/OvmfPkg/AcpiTables/AcpiTables.inf @@ -33,6 +33,7 @@ Facp.aslc
Facs.aslc
Dsdt.asl
+ Ssdt.asl
[Packages]
MdePkg/MdePkg.dec
diff --git a/OvmfPkg/AcpiTables/Ssdt.asl b/OvmfPkg/AcpiTables/Ssdt.asl new file mode 100644 index 000000000..67c5fdb3a --- /dev/null +++ b/OvmfPkg/AcpiTables/Ssdt.asl @@ -0,0 +1,19 @@ +/** @file
+ Placeholder for runtime-generated objects.
+
+ This empty table provides only a header for dynamic copying and extension,
+ and a trigger for QemuInstallAcpiSsdtTable().
+
+ Copyright (C) 2012 Red Hat, Inc.
+
+ 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
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
+ WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+**/
+
+DefinitionBlock ("Ssdt.aml", "SSDT", 1, "REDHAT", "OVMF ", 1) {
+}
|