OVMF: Add library to customize the EMU Variable FVB driver.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9316 6f19259b-4bc3-4df7-8a09-765794883524

3 files changed, 109 insertions, 8 deletions

diff --git a/OvmfPkg/Library/EmuVariableFvbLib/EmuVariableFvbLib.c b/OvmfPkg/Library/EmuVariableFvbLib/EmuVariableFvbLib.c
new file mode 100644
index 000000000..d16be5a5f
--- /dev/null
+++ b/OvmfPkg/Library/EmuVariableFvbLib/EmuVariableFvbLib.c
@@ -0,0 +1,50 @@
+/** @file

+  OVMF platform customization for EMU Variable FVB driver

+

+  Copyright (c) 2009, Intel Corporation

+  All rights reserved. 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.

+

+**/

+

+#include "PiDxe.h"

+#include <Library/DebugLib.h>

+#include <Library/PcdLib.h>

+#include <Library/PlatformFvbLib.h>

+#include <Library/UefiBootServicesTableLib.h>

+#include <Library/UefiRuntimeLib.h>

+

+

+/**

+  This function will be called following a call to the

+  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL Write function.

+

+  @param[in] This     EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL instance.

+  @param[in] Lba      The starting logical block index to written to.

+

+**/

+VOID

+EFIAPI

+PlatformFvbDataWritten (

+  IN CONST  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  *This,

+  IN        EFI_LBA                             Lba

+  )

+{

+  STATIC EFI_EVENT EventToSignal = NULL;

+

+  if (!EfiAtRuntime ()) {

+    if (EventToSignal == NULL) {

+      EventToSignal = (EFI_EVENT)(UINTN) PcdGet64 (PcdEmuVariableEvent);

+    }

+    if (EventToSignal != NULL) {

+      gBS->SignalEvent (EventToSignal);

+    }

+  }

+}

+

+

diff --git a/OvmfPkg/Library/EmuVariableFvbLib/EmuVariableFvbLib.inf b/OvmfPkg/Library/EmuVariableFvbLib/EmuVariableFvbLib.inf
new file mode 100644
index 000000000..b6fb4dc08
--- /dev/null
+++ b/OvmfPkg/Library/EmuVariableFvbLib/EmuVariableFvbLib.inf
@@ -0,0 +1,48 @@
+#/** @file

+#  OVMF platform customization for EMU Variable FVB driver

+#

+#  This library handles hooks for the EMU Variable FVB driver.

+#

+#  Copyright (c) 2006 - 2009, Intel Corporation

+#

+#  All rights reserved. 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.

+#

+#

+#**/

+

+[Defines]

+  INF_VERSION                    = 0x00010005

+  BASE_NAME                      = EmuVariableFvbLib

+  FILE_GUID                      = 8a6062ed-7140-4a74-b4ea-fe900e79e24b

+  MODULE_TYPE                    = BASE

+  VERSION_STRING                 = 1.0

+  LIBRARY_CLASS                  = PlatformFvbLib|DXE_RUNTIME_DRIVER

+

+#

+# The following information is for reference only and not required by the build tools.

+#

+#  VALID_ARCHITECTURES           = IA32 X64 IPF EBC

+#

+

+[Sources.common]

+  EmuVariableFvbLib.c

+

+[Packages]

+  MdePkg/MdePkg.dec

+  MdeModulePkg/MdeModulePkg.dec

+  OvmfPkg/OvmfPkg.dec

+

+[LibraryClasses]

+  BaseLib

+  BaseMemoryLib

+  DebugLib

+  MemoryAllocationLib

+

+[Pcd]

+  gUefiOvmfPkgTokenSpaceGuid.PcdEmuVariableEvent

+

diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec
index 1c1741d27..02c039dcd 100644
--- a/OvmfPkg/OvmfPkg.dec
+++ b/OvmfPkg/OvmfPkg.dec
@@ -25,14 +25,17 @@
 [Guids.common]

   gUefiOvmfPkgTokenSpaceGuid      = {0x93bb96af, 0xb9f2, 0x4eb8, {0x94, 0x62, 0xe0, 0xba, 0x74, 0x56, 0x42, 0x36}}

 

-[PcdsFixedAtBuild.common]

-  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageEventLogBase|0x0|UINT32|0x0000100e

-  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageEventLogSize|0x0|UINT32|0x0000100f

-  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashFvRecoveryBase|0x0|UINT32|0x00001010

-  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashFvRecoverySize|0x0|UINT32|0x00001011

-  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFirmwareFdSize|0x0|UINT32|0x00001012

-  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFirmwareBlockSize|0|UINT32|0x00001013

-  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageVariableBase|0x0|UINT32|0x00001014

+[PcdsFixedAtBuild]

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageEventLogBase|0x0|UINT32|0

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageEventLogSize|0x0|UINT32|0

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashFvRecoveryBase|0x0|UINT32|0

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashFvRecoverySize|0x0|UINT32|0

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFirmwareFdSize|0x0|UINT32|0

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFirmwareBlockSize|0|UINT32|0

+  gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageVariableBase|0x0|UINT32|0

+

+[PcdsDynamic]

+  gUefiOvmfPkgTokenSpaceGuid.PcdEmuVariableEvent|0|UINT64|0

 

 [LibraryClasses]

   ##  @libraryclass  Save and restore variables using a file