[mirror_edk2.git] / Vlv2TbltDevicePkg / Feature / Capsule / Library / FmpDeviceLib / FmpDeviceLib.c

/**\r
\r
Copyright (c) 2016, Microsoft Corporation\r
\r
All rights reserved.\r
Redistribution and use in source and binary forms, with or without\r
modification, are permitted provided that the following conditions are met:\r
1. Redistributions of source code must retain the above copyright notice,\r
this list of conditions and the following disclaimer.\r
2. Redistributions in binary form must reproduce the above copyright notice,\r
this list of conditions and the following disclaimer in the documentation\r
 and/or other materials provided with the distribution.\r
\r
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND\r
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\r
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\r
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\r
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,\r
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\r
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF\r
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE\r
OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF\r
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
\r
**/\r
\r
#include <PiDxe.h>\r
\r
#include <Library/FmpDeviceLib.h>\r
\r
#include <Library/DebugLib.h>\r
#include <Library/BaseLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/MemoryAllocationLib.h>\r
#include <Library/UefiBootServicesTableLib.h>\r
\r
#include <Library/PlatformFlashAccessLib.h>\r
\r
//#include <Protocol/FirmwareManagement.h>\r
\r
//#include <Guid/SystemResourceTable.h>\r
\r
typedef struct {\r
  PLATFORM_FIRMWARE_TYPE          FirmwareType;\r
  FLASH_ADDRESS_TYPE              AddressType;\r
  EFI_PHYSICAL_ADDRESS            BaseAddress;\r
  UINTN                           Length;\r
  UINTN                           ImageOffset;\r
} UPDATE_CONFIG_DATA;\r
\r
UPDATE_CONFIG_DATA mUpdateConfigData[] = {\r
  { PlatformFirmwareTypeSystemFirmware, FlashAddressTypeRelativeAddress, 0x00000000, 0x00040000, 0x00000000 },\r
  { PlatformFirmwareTypeSystemFirmware, FlashAddressTypeRelativeAddress, 0x000C0000, 0x00050000, 0x000C0000 },\r
  { PlatformFirmwareTypeSystemFirmware, FlashAddressTypeRelativeAddress, 0x00110000, 0x00210000, 0x00110000 },\r
  { PlatformFirmwareTypeSystemFirmware, FlashAddressTypeRelativeAddress, 0x00320000, 0x00070000, 0x00320000 },\r
  { PlatformFirmwareTypeSystemFirmware, FlashAddressTypeRelativeAddress, 0x00390000, 0x00070000, 0x00390000 },\r
  { PlatformFirmwareTypeNvRam,          FlashAddressTypeRelativeAddress, 0x00040000, 0x00080000, 0x00040000 }\r
};\r
\r
/**\r
  Used to pass the FMP install function to this lib.  This allows the library to\r
  have control of the handle that the FMP instance is installed on.  This allows\r
  the library to use DriverBinding protocol model to locate its device(s) in the\r
  system.\r
\r
  @param[in] Func  Function pointer to FMP install function.\r
\r
  @retval EFI_SUCCESS       Library has saved function pointer and will call\r
                            function pointer on each DriverBinding Start.\r
  @retval EFI_UNSUPPORTED   Library doesn't use driver binding and only supports\r
                            a single instance.\r
  @retval other error       Error occurred.  Don't install FMP\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
RegisterFmpInstaller (\r
  IN FMP_DEVICE_LIB_REGISTER_FMP_INSTALLER Func\r
  )\r
{\r
  //\r
  // This is a system firmware update that does not use Driver Binding Protocol\r
  //\r
  return EFI_UNSUPPORTED;\r
}\r
\r
\r
/**\r
  Returns the size, in bytes, of the firmware image currently stored in the\r
  firmware device.  This function is used to by the GetImage() and\r
  GetImageInfo() services of the Firmware Management Protocol.  If the image\r
  size can not be determined from the firmware device, then 0 must be returned.\r
\r
  @param[out] Size  Pointer to the size, in bytes, of the firmware image\r
                    currently stored in the firmware device.\r
\r
  @retval EFI_SUCCESS            The size of the firmware image currently\r
                                 stored in the firmware device was returned.\r
  @retval EFI_INVALID_PARAMETER  Size is NULL.\r
  @retval EFI_UNSUPPORTED        The firmware device does not support reporting\r
                                 the size of the currently stored firmware image.\r
  @retval EFI_DEVICE_ERROR       An error occured attempting to determine the\r
                                 size of the firmware image currently stored in\r
                                 in the firmware device.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
FmpDeviceGetSize (\r
  IN UINTN  *Size\r
  )\r
{\r
  if (Size == NULL) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
  *Size = PcdGet32 (PcdBiosRomBase);\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Used to return a library supplied guid that will be the ImageTypeId guid of\r
  the FMP descriptor.  This is optional but can be used if at runtime the guid\r
  needs to be determined.\r
\r
  @param[out] Guid  Double Guid Ptr that will be updated to point to guid.\r
                    This should be from static memory and will not be freed.\r
\r
  @return EFI_UNSUPPORTED  Library instance doesn't need dynamic guid.\r
  @return Error            Any error will cause the wrapper to use the GUID\r
                           defined by PCD.\r
  @return EFI_SUCCESS      Guid ptr should be updated to point to static memeory\r
                           which contains a valid guid.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
FmpDeviceGetImageTypeIdGuidPtr (\r
  OUT EFI_GUID  **Guid\r
  )\r
{\r
  return EFI_UNSUPPORTED;\r
}\r
\r
/**\r
  Returns values used to fill in the AttributesSupported and AttributesSettings\r
  fields of the EFI_FIRMWARE_IMAGE_DESCRIPTOR structure that is returned by the\r
  GetImageInfo() service of the Firmware Management Protocol.  The following\r
  bit values from the Firmware Management Protocol may be combined:\r
    IMAGE_ATTRIBUTE_IMAGE_UPDATABLE\r
    IMAGE_ATTRIBUTE_RESET_REQUIRED\r
    IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED\r
    IMAGE_ATTRIBUTE_IN_USE\r
    IMAGE_ATTRIBUTE_UEFI_IMAGE\r
\r
  @param[out] Supported  Attributes supported by this firmware device.\r
  @param[out] Setting    Attributes settings for this firmware device.\r
\r
  @retval EFI_SUCCESS            The attributes supported by the firmware\r
                                 device were returned.\r
  @retval EFI_INVALID_PARAMETER  Supported is NULL.\r
  @retval EFI_INVALID_PARAMETER  Setting is NULL.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
FmpDeviceGetAttributes (\r
  IN OUT UINT64  *Supported,\r
  IN OUT UINT64  *Setting\r
  )\r
{\r
  if (Supported == NULL || Setting == NULL) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
  *Supported = (IMAGE_ATTRIBUTE_IMAGE_UPDATABLE         |\r
                IMAGE_ATTRIBUTE_RESET_REQUIRED          |\r
                IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED |\r
                IMAGE_ATTRIBUTE_IN_USE\r
                );\r
  *Setting   = (IMAGE_ATTRIBUTE_IMAGE_UPDATABLE         |\r
                IMAGE_ATTRIBUTE_RESET_REQUIRED          |\r
                IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED |\r
                IMAGE_ATTRIBUTE_IN_USE\r
                );\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Gets the current Lowest Supported Version.\r
\r
  This is a protection mechanism so that a previous version with known issue is\r
  not applied.  ONLY implement this if your running firmware has a method to\r
  return this at runtime.  If EFI_UNSUPPORTED is returned, then the Lowest\r
  Supported Version is stored in a UEFI Variable.\r
\r
  @param[out] Version  On return this value represents the current Lowest\r
                       Supported Version (in same format as GetVersion).\r
\r
  @retval EFI_SUCCESS       The Lowest Supported Version was correctly retrieved\r
  @retval EFI_UNSUPPORTED   Device firmware doesn't support reporting LSV\r
  @retval EFI_DEVICE_ERROR  Error occurred when trying to get the LSV\r
**/\r
EFI_STATUS\r
EFIAPI\r
FmpDeviceGetLowestSupportedVersion (\r
  IN OUT UINT32  *LowestSupportedVersion\r
  )\r
{\r
  //\r
  // Retrieve the lowest support version from a PCD\r
  // NOTE: This method of using a PCD can only be used for the system firmware\r
  //       FMP instance that is updated every time the system firmware is\r
  //       updated.  If system firmware updates support partial updates that\r
  //       would not include the system firmware FMP instance, then a PCD can\r
  //       not be used and the value must come from the currently running system\r
  //       firmware image.\r
  //\r
  *LowestSupportedVersion = PcdGet32 (PcdSystemFirmwareFmpLowestSupportedVersion);\r
  return EFI_SUCCESS;\r
}\r
\r
\r
/**\r
  Returns the Null-terminated Unicode string that is used to fill in the\r
  VersionName field of the EFI_FIRMWARE_IMAGE_DESCRIPTOR structure that is\r
  returned by the GetImageInfo() service of the Firmware Management Protocol.\r
  The returned string must be allocated using EFI_BOOT_SERVICES.AllocatePool().\r
\r
  @note It is recommended that all firmware devices support a method to report\r
        the VersionName string from the currently stored firmware image.\r
\r
  @param[out] VersionString  The version string retrieved from the currently\r
                             stored firmware image.\r
\r
  @retval EFI_SUCCESS            The version string of currently stored\r
                                 firmware image was returned in Version.\r
  @retval EFI_INVALID_PARAMETER  VersionString is NULL.\r
  @retval EFI_UNSUPPORTED        The firmware device does not support a method\r
                                 to report the version string of the currently\r
                                 stored firmware image.\r
  @retval EFI_DEVICE_ERROR       An error occurred attempting to retrieve the\r
                                 version string of the currently stored\r
                                 firmware image.\r
  @retval EFI_OUT_OF_RESOURCES   There are not enough resources to allocate the\r
                                 buffer for the version string of the currently\r
                                 stored firmware image.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
FmpDeviceGetVersionString (\r
  OUT CHAR16  **VersionString\r
  )\r
{\r
  if (VersionString == NULL) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  //\r
  // Retrieve the version string from a PCD\r
  // NOTE: This method of using a PCD can only be used for the system firmware\r
  //       FMP instance that is updated every time the system firmware is\r
  //       updated.  If system firmware updates support partial updates that\r
  //       would not include the system firmware FMP instance, then a PCD can\r
  //       not be used and the value must come from the currently running system\r
  //       firmware image.\r
  //\r
  *VersionString = (CHAR16 *)AllocateCopyPool (\r
                               PcdGetSize (PcdSystemFirmwareFmpVersionString),\r
                               PcdGetPtr (PcdSystemFirmwareFmpVersionString)\r
                               );\r
  if (*VersionString == NULL) {\r
    return EFI_OUT_OF_RESOURCES;\r
  }\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Gets the current running version.\r
\r
  ONLY implement this if your running firmware has a method to return this at\r
  runtime.\r
\r
  @param[out] Version  On return this value represents the current running\r
                       version.\r
\r
  @retval EFI_SUCCESS       The version was correctly retrieved.\r
  @retval EFI_UNSUPPORTED   Device firmware doesn't support reporting current\r
                            version.\r
  @retval EFI_DEVICE_ERROR  Error occurred when trying to get the version.\r
**/\r
EFI_STATUS\r
EFIAPI\r
FmpDeviceGetVersion (\r
  IN OUT UINT32  *Version\r
  )\r
{\r
  //\r
  // Retrieve the version string from a PCD\r
  // NOTE: This method of using a PCD can only be used for the system firmware\r
  //       FMP instance that is updated every time the system firmware is\r
  //       updated.  If system firmware updates support partial updates that\r
  //       would not include the system firmware FMP instance, then a PCD can\r
  //       not be used and the value must come from the currently running system\r
  //       firmware image.\r
  //\r
  *Version = PcdGet32 (PcdSystemFirmwareFmpVersion);\r
  return EFI_SUCCESS;\r
}\r
\r
\r
/**\r
  Retrieves a copy of the current firmware image of the device.\r
\r
  This function allows a copy of the current firmware image to be created and\r
  saved.  The saved copy could later been used, for example, in firmware image\r
  recovery or rollback.\r
\r
  @param[out] Image      Points to the buffer where the current image is copied\r
                         to.\r
  @param[out] ImageSize  On entry, points to the size of the buffer pointed to\r
                         by Image, in bytes.  On return, points to the length of\r
                         the image, in bytes.\r
\r
  @retval EFI_SUCCESS            The image was successfully read from the device.\r
  @retval EFI_BUFFER_TOO_SMALL   The buffer specified by ImageSize is too small\r
                                 to hold the image. The current buffer size\r
                                 needed to hold the image is returned in\r
                                 ImageSize.\r
  @retval EFI_INVALID_PARAMETER  The Image was NULL.\r
  @retval EFI_NOT_FOUND          The current image is not copied to the buffer.\r
  @retval EFI_UNSUPPORTED        The operation is not supported.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
FmpDeviceGetImage (\r
  IN OUT VOID   *Image,\r
  IN OUT UINTN  *ImageSize\r
  )\r
{\r
  //\r
  // Check for invalid p;arameters\r
  //\r
  if (Image == NULL || ImageSize == NULL) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  //\r
  // Make sure the buffer is big enough to hold the device image\r
  //\r
  if (*ImageSize < PcdGet32 (PcdBiosRomSize)) {\r
    *ImageSize = PcdGet32 (PcdBiosRomSize);\r
    return EFI_BUFFER_TOO_SMALL;\r
  }\r
\r
  //\r
  // Copy the device image to the buffer\r
  //\r
  *ImageSize = PcdGet32 (PcdBiosRomSize);\r
  CopyMem (\r
    Image,\r
    (VOID *)(UINTN)PcdGet32 (PcdBiosRomBase),\r
    *ImageSize\r
    );\r
\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Updates the firmware image of the device.\r
\r
  This function updates the hardware with the new firmware image.  This function\r
  returns EFI_UNSUPPORTED if the firmware image is not updatable.  If the\r
  firmware image is updatable, the function should perform the following minimal\r
  validations before proceeding to do the firmware image update.\r
    - Validate the image is a supported image for this device.  The function\r
      returns EFI_ABORTED if the image is unsupported.  The function can\r
      optionally provide more detailed information on why the image is not a\r
      supported image.\r
    - Validate the data from VendorCode if not null.  Image validation must be\r
      performed before VendorCode data validation.  VendorCode data is ignored\r
      or considered invalid if image validation failed.  The function returns\r
      EFI_ABORTED if the data is invalid.\r
\r
  VendorCode enables vendor to implement vendor-specific firmware image update\r
  policy.  Null if the caller did not specify the policy or use the default\r
  policy.  As an example, vendor can implement a policy to allow an option to\r
  force a firmware image update when the abort reason is due to the new firmware\r
  image version is older than the current firmware image version or bad image\r
  checksum.  Sensitive operations such as those wiping the entire firmware image\r
  and render the device to be non-functional should be encoded in the image\r
  itself rather than passed with the VendorCode.  AbortReason enables vendor to\r
  have the option to provide a more detailed description of the abort reason to\r
  the caller.\r
\r
  @param[in]  Image             Points to the new image.\r
  @param[in]  ImageSize         Size of the new image in bytes.\r
  @param[in]  VendorCode        This enables vendor to implement vendor-specific\r
                                firmware image update policy. Null indicates the\r
                                caller did not specify the policy or use the\r
                                default policy.\r
  @param[in]  Progress          A function used by the driver to report the\r
                                progress of the firmware update.\r
  @param[in]  CapsuleFwVersion  FMP Payload Header version of the image.\r
  @param[out] AbortReason       A pointer to a pointer to a null-terminated\r
                                string providing more details for the aborted\r
                                operation. The buffer is allocated by this\r
                                function with AllocatePool(), and it is the\r
                                caller's responsibility to free it with a call\r
                                to FreePool().\r
\r
  @retval EFI_SUCCESS            The device was successfully updated with the\r
                                 new image.\r
  @retval EFI_ABORTED            The operation is aborted.\r
  @retval EFI_INVALID_PARAMETER  The Image was NULL.\r
  @retval EFI_UNSUPPORTED        The operation is not supported.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
FmpDeviceSetImage (\r
  IN  CONST VOID                                     *Image,\r
  IN  UINTN                                          ImageSize,\r
  IN  CONST VOID                                     *VendorCode,\r
  IN  EFI_FIRMWARE_MANAGEMENT_UPDATE_IMAGE_PROGRESS  Progress,\r
  IN  UINT32                                         CapsuleFwVersion,\r
  OUT CHAR16                                         **AbortReason\r
  )\r
{\r
  EFI_STATUS          Status;\r
  UINT32              Updateable;\r
  UINTN               Percentage;\r
  UINTN               Index;\r
  UPDATE_CONFIG_DATA  *ConfigData;\r
  UINTN               TotalSize;\r
  UINTN               BytesWritten;\r
\r
  Updateable = 0;\r
  Status = FmpDeviceCheckImage (Image, ImageSize, &Updateable);\r
  if (EFI_ERROR (Status)) {\r
    DEBUG((DEBUG_ERROR, "FmpDeviceSetImage - Check Image failed with %r.\n", Status));\r
    return Status;\r
  }\r
\r
  if (Updateable != IMAGE_UPDATABLE_VALID) {\r
    DEBUG((DEBUG_ERROR, "FmpDeviceSetImage - Check Image returned that the Image was not valid for update.  Updatable value = 0x%X.\n", Updateable));\r
    return EFI_ABORTED;\r
  }\r
\r
  if (Progress == NULL) {\r
    DEBUG((DEBUG_ERROR, "FmpDeviceSetImage - Invalid progress callback\n"));\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  Status = Progress (15);\r
  if (EFI_ERROR (Status)) {\r
    DEBUG((DEBUG_ERROR, "FmpDeviceSetImage - Progress Callback failed with Status %r.\n", Status));\r
  }\r
\r
  //\r
  // Write the image to the firmware device\r
  //\r
  Progress (20);\r
  if (EFI_ERROR (Status)) {\r
    DEBUG((DEBUG_ERROR, "FmpDeviceSetImage - Progress Callback failed with Status %r.\n", Status));\r
  }\r
\r
  //\r
  // Simulate update with delays between progress updates\r
  //\r
  for (Percentage = 20; Percentage <= 100; Percentage++) {\r
    //\r
    // Wait 0.05 seconds\r
    //\r
//    gBS->Stall (50000);\r
\r
//    Progress (Percentage);\r
//    if (EFI_ERROR (Status)) {\r
//      DEBUG((DEBUG_ERROR, "FmpDeviceSetImage - Progress Callback failed with Status %r.\n", Status));\r
//    }\r
  }\r
\r
  DEBUG ((DEBUG_INFO, "FmpDeviceSetImage - %d Images ...\n", ARRAY_SIZE (mUpdateConfigData)));\r
\r
  if (ARRAY_SIZE (mUpdateConfigData) == 0) {\r
    DEBUG((DEBUG_INFO, "PlatformUpdate: BaseAddress - 0x%lx ImageOffset - 0x%x Length - 0x%x\n", 0, 0, ImageSize));\r
    Status = PerformFlashWriteWithProgress (\r
               PlatformFirmwareTypeSystemFirmware,  // FirmwareType\r
               0x00000000,                          // FlashAddress\r
               FlashAddressTypeRelativeAddress,     // FlashAddressType\r
               (VOID *)(UINTN)Image,                // Buffer\r
               ImageSize,                           // BufferLength\r
               Progress,                            // Progress\r
               20,                                  // StartPercentage\r
               100                                  // EndPercentage\r
               );\r
  }\r
\r
\r
  //\r
  // Compute total size of update\r
  //\r
  for (Index = 0, TotalSize = 0; Index < ARRAY_SIZE (mUpdateConfigData); Index++) {\r
    TotalSize += mUpdateConfigData[Index].Length;\r
  }\r
\r
  BytesWritten = 0;\r
  for (Index = 0, ConfigData = mUpdateConfigData; Index < ARRAY_SIZE (mUpdateConfigData); Index++, ConfigData++) {\r
    DEBUG((DEBUG_INFO, "PlatformUpdate(%d): BaseAddress - 0x%lx ImageOffset - 0x%x Length - 0x%x\n",\r
      Index,\r
      ConfigData->BaseAddress,\r
      ConfigData->ImageOffset,\r
      ConfigData->Length\r
      ));\r
    Status = PerformFlashWriteWithProgress (\r
               ConfigData->FirmwareType,                                     // FirmwareType\r
               ConfigData->BaseAddress,                                      // FlashAddress\r
               ConfigData->AddressType,                                      // FlashAddressType\r
               (VOID *)((UINTN)Image + (UINTN)ConfigData->ImageOffset),      // Buffer\r
               ConfigData->Length,                                           // BufferLength\r
               Progress,                                                     // Progress\r
               20 + (BytesWritten * 80) / TotalSize,                         // StartPercentage\r
               20 + ((BytesWritten + ConfigData->Length) * 80) / TotalSize   // EndPercentage\r
               );\r
    if (EFI_ERROR(Status)) {\r
      break;\r
    }\r
    BytesWritten += ConfigData->Length;\r
  }\r
\r
  DEBUG ((DEBUG_INFO, "FmpDeviceSetImage - %r\n", Status));\r
\r
  return Status;\r
}\r
\r
/**\r
Checks if the firmware image is valid for the device.\r
\r
This function allows firmware update application to validate the firmware image without\r
invoking the SetImage() first.\r
\r
@param[in]  Image              Points to the new image.\r
@param[in]  ImageSize          Size of the new image in bytes.\r
@param[out] ImageUpdatable     Indicates if the new image is valid for update. It also provides,\r
if available, additional information if the image is invalid.\r
\r
@retval EFI_SUCCESS            The image was successfully checked.\r
@retval EFI_INVALID_PARAMETER  The Image was NULL.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
FmpDeviceCheckImage (\r
  IN  CONST VOID  *Image,\r
  IN  UINTN       ImageSize,\r
  OUT UINT32      *ImageUpdateable\r
  )\r
{\r
  if (ImageUpdateable == NULL) {\r
    DEBUG((DEBUG_ERROR, "CheckImage - ImageUpdateable Pointer Parameter is NULL.\n"));\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  //\r
  //Set to valid and then if any tests fail it will update this flag.\r
  //\r
  *ImageUpdateable = IMAGE_UPDATABLE_VALID;\r
\r
  if (Image == NULL) {\r
    DEBUG((DEBUG_ERROR, "CheckImage - Image Pointer Parameter is NULL.\n"));\r
    //\r
    // Not sure if this is needed\r
    //\r
    *ImageUpdateable = IMAGE_UPDATABLE_INVALID;\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  //\r
  // Make sure the image size is correct\r
  //\r
  if (ImageSize != PcdGet32 (PcdBiosRomSize)) {\r
    *ImageUpdateable = IMAGE_UPDATABLE_INVALID;\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Device firmware should trigger lock mechanism so that device fw can not be\r
  updated or tampered with. This lock mechanism is generally only cleared by a\r
  full system reset (not just sleep state/low power mode)\r
\r
  @retval EFI_SUCCESS           The device was successfully locked.\r
  @retval EFI_UNSUPPORTED       The hardware device/firmware doesn't support locking\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
FmpDeviceLock (\r
  VOID\r
  )\r
{\r
  DEBUG ((DEBUG_INFO, "VLV2: FmpDeviceLock() for system FLASH\n"));\r
  // TODO: Add lock logic\r
  return EFI_UNSUPPORTED;\r
}\r