diff options
Diffstat (limited to 'Vlv2TbltDevicePkg/PlatformSmm/SmmScriptSave.c')
| -rw-r--r-- | Vlv2TbltDevicePkg/PlatformSmm/SmmScriptSave.c | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/Vlv2TbltDevicePkg/PlatformSmm/SmmScriptSave.c b/Vlv2TbltDevicePkg/PlatformSmm/SmmScriptSave.c new file mode 100644 index 0000000000..09a6a8c3b5 --- /dev/null +++ b/Vlv2TbltDevicePkg/PlatformSmm/SmmScriptSave.c @@ -0,0 +1,257 @@ +/** @file
+
+ Copyright (c) 2004 - 2014, 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 that 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.
+
+
+
+Module Name:
+
+
+ SmmScriptSave.c
+
+Abstract:
+
+ ScriptTableSave module at run time
+
+--*/
+
+#include "SmmScriptSave.h"
+
+//
+// internal functions
+//
+
+EFI_STATUS
+BootScriptIoWrite (
+ IN EFI_SMM_SCRIPT_TABLE *ScriptTable,
+ IN VA_LIST Marker
+ );
+
+EFI_STATUS
+BootScriptPciCfgWrite (
+ IN EFI_SMM_SCRIPT_TABLE *ScriptTable,
+ IN VA_LIST Marker
+ );
+
+VOID
+SmmCopyMem (
+ IN UINT8 *Destination,
+ IN UINT8 *Source,
+ IN UINTN ByteCount
+ );
+
+//
+// Function implementations
+//
+EFI_STATUS
+SmmBootScriptWrite (
+ IN OUT EFI_SMM_SCRIPT_TABLE *ScriptTable,
+ IN UINTN Type,
+ IN UINT16 OpCode,
+ ...
+ )
+{
+ EFI_STATUS Status;
+ VA_LIST Marker;
+
+ if (ScriptTable == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Build script according to opcode
+ //
+ switch ( OpCode ) {
+
+ case EFI_BOOT_SCRIPT_IO_WRITE_OPCODE:
+ VA_START(Marker, OpCode);
+ Status = BootScriptIoWrite (ScriptTable, Marker);
+ VA_END(Marker);
+ break;
+
+ case EFI_BOOT_SCRIPT_PCI_CONFIG_WRITE_OPCODE:
+ VA_START(Marker, OpCode);
+ Status = BootScriptPciCfgWrite(ScriptTable, Marker);
+ VA_END(Marker);
+ break;
+
+ default:
+ Status = EFI_SUCCESS;
+ break;
+ }
+
+ return Status;
+}
+
+
+EFI_STATUS
+SmmBootScriptCreateTable (
+ IN OUT EFI_SMM_SCRIPT_TABLE *ScriptTable,
+ IN UINTN Type
+ )
+{
+ BOOT_SCRIPT_POINTERS Script;
+ UINT8 *Buffer;
+
+ if (ScriptTable == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ Buffer = (UINT8*) ((UINTN)(*ScriptTable));
+
+ //
+ // Fill Table Header
+ //
+ Script.Raw = Buffer;
+ Script.TableInfo->OpCode = EFI_BOOT_SCRIPT_TABLE_OPCODE;
+ Script.TableInfo->Length = sizeof(EFI_BOOT_SCRIPT_TABLE_HEADER);
+ Script.TableInfo->TableLength = sizeof(EFI_BOOT_SCRIPT_TABLE_HEADER);
+
+ //
+ // Update current table pointer
+ //
+ *ScriptTable = *ScriptTable + sizeof(EFI_BOOT_SCRIPT_TABLE_HEADER);
+ return EFI_SUCCESS;
+}
+
+
+EFI_STATUS
+SmmBootScriptCloseTable (
+ IN EFI_SMM_SCRIPT_TABLE ScriptTableBase,
+ IN EFI_SMM_SCRIPT_TABLE ScriptTablePtr,
+ IN UINTN Type
+ )
+{
+ BOOT_SCRIPT_POINTERS Script;
+
+ //
+ // Add final "termination" node to script table
+ //
+ Script.Raw = (UINT8*) ((UINTN)ScriptTablePtr);
+ Script.Terminate->OpCode = EFI_BOOT_SCRIPT_TERMINATE_OPCODE;
+ Script.Terminate->Length = sizeof (EFI_BOOT_SCRIPT_TERMINATE);
+ ScriptTablePtr += sizeof (EFI_BOOT_SCRIPT_TERMINATE);
+
+
+ //
+ // Update Table Header
+ //
+ Script.Raw = (UINT8*) ((UINTN)ScriptTableBase);
+ Script.TableInfo->OpCode = EFI_BOOT_SCRIPT_TABLE_OPCODE;
+ Script.TableInfo->Length = sizeof (EFI_BOOT_SCRIPT_TABLE_HEADER);
+ Script.TableInfo->TableLength = (UINT32)(ScriptTablePtr - ScriptTableBase);
+
+ return EFI_SUCCESS;
+}
+
+
+EFI_STATUS
+BootScriptIoWrite (
+ IN EFI_SMM_SCRIPT_TABLE *ScriptTable,
+ IN VA_LIST Marker
+ )
+{
+ BOOT_SCRIPT_POINTERS Script;
+ EFI_BOOT_SCRIPT_WIDTH Width;
+ UINTN Address;
+ UINTN Count;
+ UINT8 *Buffer;
+ UINTN NodeLength;
+ UINT8 WidthInByte;
+
+ Width = VA_ARG(Marker, EFI_BOOT_SCRIPT_WIDTH);
+ Address = VA_ARG(Marker, UINTN);
+ Count = VA_ARG(Marker, UINTN);
+ Buffer = VA_ARG(Marker, UINT8*);
+
+ WidthInByte = (UINT8)(0x01 << (Width & 0x03));
+ Script.Raw = (UINT8*) ((UINTN)(*ScriptTable));
+ NodeLength = sizeof (EFI_BOOT_SCRIPT_IO_WRITE) + (WidthInByte * Count);
+
+ //
+ // Build script data
+ //
+ Script.IoWrite->OpCode = EFI_BOOT_SCRIPT_IO_WRITE_OPCODE;
+ Script.IoWrite->Length = (UINT8)(NodeLength);
+ Script.IoWrite->Width = Width;
+ Script.IoWrite->Address = Address;
+ Script.IoWrite->Count = (UINT32)Count;
+ SmmCopyMem (
+ (UINT8*)(Script.Raw + sizeof (EFI_BOOT_SCRIPT_IO_WRITE)),
+ Buffer,
+ WidthInByte * Count
+ );
+
+ //
+ // Update Script table pointer
+ //
+ *ScriptTable = *ScriptTable + NodeLength;
+ return EFI_SUCCESS;
+}
+
+
+EFI_STATUS
+BootScriptPciCfgWrite (
+ IN EFI_SMM_SCRIPT_TABLE *ScriptTable,
+ IN VA_LIST Marker
+ )
+{
+ BOOT_SCRIPT_POINTERS Script;
+ EFI_BOOT_SCRIPT_WIDTH Width;
+ UINT64 Address;
+ UINTN Count;
+ UINT8 *Buffer;
+ UINTN NodeLength;
+ UINT8 WidthInByte;
+
+ Width = VA_ARG(Marker, EFI_BOOT_SCRIPT_WIDTH);
+ Address = VA_ARG(Marker, UINT64);
+ Count = VA_ARG(Marker, UINTN);
+ Buffer = VA_ARG(Marker, UINT8*);
+
+ WidthInByte = (UINT8)(0x01 << (Width & 0x03));
+ Script.Raw = (UINT8*) ((UINTN)(*ScriptTable));
+ NodeLength = sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG_WRITE) + (WidthInByte * Count);
+
+ //
+ // Build script data
+ //
+ Script.PciWrite->OpCode = EFI_BOOT_SCRIPT_PCI_CONFIG_WRITE_OPCODE;
+ Script.PciWrite->Length = (UINT8)(NodeLength);
+ Script.PciWrite->Width = Width;
+ Script.PciWrite->Address = Address;
+ Script.PciWrite->Count = (UINT32)Count;
+ SmmCopyMem (
+ (UINT8*)(Script.Raw + sizeof (EFI_BOOT_SCRIPT_PCI_CONFIG_WRITE)),
+ Buffer,
+ WidthInByte * Count
+ );
+
+ //
+ // Update Script table pointer
+ //
+ *ScriptTable = *ScriptTable + NodeLength;
+ return EFI_SUCCESS;
+}
+
+VOID
+SmmCopyMem (
+ IN UINT8 *Destination,
+ IN UINT8 *Source,
+ IN UINTN ByteCount
+ )
+{
+ UINTN Index;
+
+ for (Index = 0; Index < ByteCount; Index++, Destination++, Source++) {
+ *Destination = *Source;
+ }
+}
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