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alder_lake_bios/Insyde/InsydeModulePkg/Universal/FirmwareVolume/FlashDeviceFvbRuntimeDxe/FWBlockService.c

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/** @file
Implementation for Firmware Volume Block Protocol
;******************************************************************************
;* Copyright (c) 2013 - 2021, Insyde Software Corp. All Rights Reserved.
;*
;* You may not reproduce, distribute, publish, display, perform, modify, adapt,
;* transmit, broadcast, present, recite, release, license or otherwise exploit
;* any part of this publication in any form, by any means, without the prior
;* written permission of Insyde Software Corporation.
;*
;******************************************************************************
*/
/**
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
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:
FWBlockService.c
Abstract:
Revision History
**/
//
// The package level header files this module uses
//
#include <PiDxe.h>
//
// The protocols, PPI and GUID defintions for this module
//
#include <Guid/EventGroup.h>
#include <Protocol/FirmwareVolumeBlock.h>
#include <Protocol/DevicePath.h>
//
// The Library classes this module consumes
//
#include <Library/UefiLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/BaseLib.h>
#include <Library/DxeServicesTableLib.h>
#include <Library/UefiRuntimeLib.h>
#include <Library/DebugLib.h>
#include <Library/HobLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/DevicePathLib.h>
#include <Library/FdSupportLib.h>
#include <Library/FlashRegionLib.h>
#include <Guid/IrsiFeature.h>
#include <Protocol/FvRegionInfo.h>
#include "FwBlockService.h"
#define EFI_FVB2_STATUS (EFI_FVB2_READ_STATUS | EFI_FVB2_WRITE_STATUS | EFI_FVB2_LOCK_STATUS)
extern FV_REGION_INFO mFvRegionInfo[];
extern FVB_MEDIA_INFO mPlatformFvbMediaInfo;
extern UINT32 mFvRegionInfoTableCount;
EFI_GUID mNullGuid = IRSI_NULL_IMAGE_GUID;
ESAL_FWB_GLOBAL *mFvbModuleGlobal;
BOOLEAN mFvbInstalledComplete = FALSE;
FV_MEMMAP_DEVICE_PATH mFvMemmapDevicePathTemplate = {
{
{
HARDWARE_DEVICE_PATH,
HW_MEMMAP_DP,
{
(UINT8)(sizeof (MEMMAP_DEVICE_PATH)),
(UINT8)(sizeof (MEMMAP_DEVICE_PATH) >> 8)
}
},
EfiMemoryMappedIO,
(EFI_PHYSICAL_ADDRESS) 0,
(EFI_PHYSICAL_ADDRESS) 0,
},
{
END_DEVICE_PATH_TYPE,
END_ENTIRE_DEVICE_PATH_SUBTYPE,
{
END_DEVICE_PATH_LENGTH,
0
}
}
};
FV_PIWG_DEVICE_PATH mFvPIWGDevicePathTemplate = {
{
{
MEDIA_DEVICE_PATH,
MEDIA_PIWG_FW_VOL_DP,
{
(UINT8)(sizeof (MEDIA_FW_VOL_DEVICE_PATH)),
(UINT8)(sizeof (MEDIA_FW_VOL_DEVICE_PATH) >> 8)
}
},
{ 0 }
},
{
END_DEVICE_PATH_TYPE,
END_ENTIRE_DEVICE_PATH_SUBTYPE,
{
END_DEVICE_PATH_LENGTH,
0
}
}
};
EFI_FW_VOL_BLOCK_DEVICE mFvbDeviceTemplate = {
FVB_DEVICE_SIGNATURE,
NULL,
0,
{
FvbProtocolGetAttributes,
FvbProtocolSetAttributes,
FvbProtocolGetPhysicalAddress,
FvbProtocolGetBlockSize,
FvbProtocolRead,
FvbProtocolWrite,
FvbProtocolEraseBlocks,
NULL
}
};
/**
Fixup internal data so that EFI and SAL can be call in virtual mode.
Call the passed in Child Notify event and convert the mFvbModuleGlobal
date items to there virtual address.
mFvbModuleGlobal->FvInstance[FVB_PHYSICAL] - Physical copy of instance data
mFvbModuleGlobal->FvInstance[FVB_VIRTUAL] - Virtual pointer to common
instance data.
@param [in] Event
@param [in] Context
@retval None
**/
VOID
EFIAPI
FvbVirtualddressChangeEvent (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EFI_FW_VOL_INSTANCE *FwhInstance;
UINTN Index;
FVB_MEDIA_INFO *FvbMediaInfo;
EfiConvertPointer (0x0, (VOID **) &mFvbModuleGlobal->FvInstance[FVB_VIRTUAL]);
//
// Convert the base address of all the instances
//
Index = 0;
FwhInstance = mFvbModuleGlobal->FvInstance[FVB_PHYSICAL];
while (Index < mFvbModuleGlobal->NumFv) {
EfiConvertPointer (0x0, (VOID **) &FwhInstance->FvBase[FVB_VIRTUAL]);
FwhInstance = (EFI_FW_VOL_INSTANCE *)
(
(UINTN) ((UINT8 *) FwhInstance) + FwhInstance->VolumeHeader.HeaderLength +
(sizeof (EFI_FW_VOL_INSTANCE) - sizeof (EFI_FIRMWARE_VOLUME_HEADER))
);
Index++;
}
EfiConvertPointer (0x0, (VOID **) &mFvbModuleGlobal->FvbScratchSpace[FVB_VIRTUAL]);
EfiConvertPointer (0x0, (VOID **) &mFvbModuleGlobal);
FvbMediaInfo = GetFvbMediaInfo();
EfiConvertPointer (0x0, (VOID **) &FvbMediaInfo->FvRegionInfo);
}
/**
Add the EFI_MEMORY_RUNTIME memory attribute to input memory region.
@param[in] BaseAddress Input memory base address.
@param[in] Length Input memory size.
@retval EFI_SUCCESS Add EFI_MEMORY_RUNTIME memory attribute successfully.
@retval other Any other occurred while adding EFI_MEMORY_RUNTIME memory attribute.
**/
STATIC
EFI_STATUS
SetRuntimeMemoryAttribute (
IN EFI_PHYSICAL_ADDRESS BaseAddress,
IN UINT64 Length
)
{
EFI_STATUS Status;
EFI_GCD_MEMORY_SPACE_DESCRIPTOR GcdDescriptor;
//
// Mark the Flash part memory space as EFI_MEMORY_RUNTIME
//
BaseAddress = BaseAddress & (~EFI_PAGE_MASK);
Length = (Length + EFI_PAGE_SIZE - 1) & (~EFI_PAGE_MASK);
Status = gDS->GetMemorySpaceDescriptor (BaseAddress, &GcdDescriptor);
ASSERT_EFI_ERROR (Status);
if (EFI_ERROR (Status)) {
return Status;
}
if ((GcdDescriptor.Attributes & EFI_MEMORY_RUNTIME) == EFI_MEMORY_RUNTIME) {
return EFI_SUCCESS;
}
Status = gDS->SetMemorySpaceAttributes (
BaseAddress,
Length,
EFI_MEMORY_RUNTIME
);
ASSERT_EFI_ERROR (Status);
return Status;
}
/**
This function uses to add the EFI_MEMORY_RUNTIME memory attribute to
whole flash.
@param Event Event whose notification function is being invoked.
@param Context Pointer to the notification function's context.
**/
VOID
EFIAPI
FvbReadyToBootCallback (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EFI_PHYSICAL_ADDRESS BaseAddress;
UINT64 Length;
FVB_MEDIA_INFO *FvbMediaInfo;
gBS->CloseEvent (Event);
FvbMediaInfo = GetFvbMediaInfo();
BaseAddress = FvbMediaInfo->BaseAddress;
Length = FvbMediaInfo->FvHeader.FvLength;
SetRuntimeMemoryAttribute (BaseAddress, Length);
}
/**
Retrieves the physical address of a memory mapped FV
@param [in] Instance The FV instance whose base address is going to be
returned
@param [in] Global Pointer to ESAL_FWB_GLOBAL that contains all
instance data
@param [out] FwhInstance The EFI_FW_VOL_INSTANCE fimrware instance structure
@param [in] Virtual Whether CPU is in virtual or physical mode
@retval EFI_SUCCESS Successfully returns
@retval EFI_INVALID_PARAMETER Instance not found
**/
EFI_STATUS
GetFvbInstance (
IN UINTN Instance,
IN ESAL_FWB_GLOBAL *Global,
OUT EFI_FW_VOL_INSTANCE **FwhInstance,
IN BOOLEAN Virtual
)
{
EFI_FW_VOL_INSTANCE *FwhRecord;
if (Instance >= Global->NumFv) {
return EFI_INVALID_PARAMETER;
}
//
// Find the right instance of the FVB private data
//
FwhRecord = Global->FvInstance[Virtual ? 1 : 0];
while (Instance > 0) {
FwhRecord = (EFI_FW_VOL_INSTANCE *)
(
(UINTN) ((UINT8 *) FwhRecord) + FwhRecord->VolumeHeader.HeaderLength +
(sizeof (EFI_FW_VOL_INSTANCE) - sizeof (EFI_FIRMWARE_VOLUME_HEADER))
);
Instance--;
}
*FwhInstance = FwhRecord;
return EFI_SUCCESS;
}
/**
Retrieves the physical address of a memory mapped FV
@param [in] Instance The FV instance whose base address is going to be
returned
@param [out] Address Pointer to a caller allocated EFI_PHYSICAL_ADDRESS
that on successful return, contains the base address
of the firmware volume.
@param [in] Global Pointer to ESAL_FWB_GLOBAL that contains all
instance data
@param [in] Virtual Whether CPU is in virtual or physical mode
@retval EFI_SUCCESS Successfully returns
@retval EFI_INVALID_PARAMETER Instance not found
**/
EFI_STATUS
FvbGetPhysicalAddress (
IN UINTN Instance,
OUT EFI_PHYSICAL_ADDRESS *Address,
IN ESAL_FWB_GLOBAL *Global,
IN BOOLEAN Virtual
)
{
EFI_FW_VOL_INSTANCE *FwhInstance;
EFI_STATUS Status;
//
// Find the right instance of the FVB private data
//
Status = GetFvbInstance (Instance, Global, &FwhInstance, Virtual);
ASSERT_EFI_ERROR (Status);
*Address = FwhInstance->FvBase[Virtual ? 1 : 0];
return EFI_SUCCESS;
}
/**
Retrieves attributes, insures positive polarity of attribute bits, returns
resulting attributes in output parameter
@param [in] Instance The FV instance whose attributes is going to be
returned
@param [out] Attributes Output buffer which contains attributes
@param [in] Global Pointer to ESAL_FWB_GLOBAL that contains all
instance data
@param [in] Virtual Whether CPU is in virtual or physical mode
@retval EFI_SUCCESS Successfully returns
@retval EFI_INVALID_PARAMETER Instance not found
**/
EFI_STATUS
FvbGetVolumeAttributes (
IN UINTN Instance,
OUT EFI_FVB_ATTRIBUTES_2 *Attributes,
IN ESAL_FWB_GLOBAL *Global,
IN BOOLEAN Virtual
)
{
EFI_FW_VOL_INSTANCE *FwhInstance;
EFI_STATUS Status;
//
// Find the right instance of the FVB private data
//
Status = GetFvbInstance (Instance, Global, &FwhInstance, Virtual);
ASSERT_EFI_ERROR (Status);
*Attributes = FwhInstance->VolumeHeader.Attributes;
return EFI_SUCCESS;
}
/**
Retrieves the starting address of an LBA in an FV
@param [in] Instance The FV instance which the Lba belongs to
@param [in] Lba The logical block address
@param [out] LbaAddress On output, contains the physical starting address
of the Lba
@param [out] LbaLength On output, contains the length of the block
@param [out] NumOfBlocks A pointer to a caller allocated UINTN in which the
number of consecutive blocks starting with Lba is
returned. All blocks in this range have a size of
BlockSize
@param [in] Global Pointer to ESAL_FWB_GLOBAL that contains all
instance data
@param [in] Virtual Whether CPU is in virtual or physical mode
@retval EFI_SUCCESS Successfully returns
@retval EFI_INVALID_PARAMETER Instance not found
**/
EFI_STATUS
FvbGetLbaAddress (
IN UINTN Instance,
IN EFI_LBA Lba,
OUT UINTN *LbaAddress,
OUT UINTN *LbaLength,
OUT UINTN *NumOfBlocks,
IN ESAL_FWB_GLOBAL *Global,
IN BOOLEAN Virtual
)
{
UINT32 NumBlocks;
UINT32 BlockLength;
UINTN Offset;
EFI_LBA StartLba;
EFI_LBA NextLba;
EFI_FW_VOL_INSTANCE *FwhInstance;
EFI_FV_BLOCK_MAP_ENTRY *BlockMap;
EFI_STATUS Status;
//
// Find the right instance of the FVB private data
//
Status = GetFvbInstance (Instance, Global, &FwhInstance, Virtual);
ASSERT_EFI_ERROR (Status);
StartLba = 0;
Offset = 0;
BlockMap = &(FwhInstance->VolumeHeader.BlockMap[0]);
//
// Parse the blockmap of the FV to find which map entry the Lba belongs to
//
while (TRUE) {
NumBlocks = BlockMap->NumBlocks;
BlockLength = BlockMap->Length;
if (NumBlocks == 0 || BlockLength == 0) {
return EFI_INVALID_PARAMETER;
}
NextLba = StartLba + NumBlocks;
//
// The map entry found
//
if (Lba >= StartLba && Lba < NextLba) {
Offset = Offset + (UINTN) MultU64x32 ((Lba - StartLba), BlockLength);
if (LbaAddress != NULL) {
*LbaAddress = FwhInstance->FvBase[Virtual ? 1 : 0] + Offset;
}
if (LbaLength != NULL) {
*LbaLength = BlockLength;
}
if (NumOfBlocks != NULL) {
*NumOfBlocks = (UINTN) (NextLba - Lba);
}
return EFI_SUCCESS;
}
StartLba = NextLba;
Offset = Offset + NumBlocks * BlockLength;
BlockMap++;
}
}
/**
Reads specified number of bytes into a buffer from the specified block
@param [in] Instance The FV instance to be read from
@param [in] Lba The logical block address to be read from
@param [in] BlockOffset Offset into the block at which to begin reading
@param [in, out] NumBytes Pointer that on input contains the total size of
the buffer. On output, it contains the total number
of bytes read
@param [in] Buffer Pointer to a caller allocated buffer that will be
used to hold the data read
@param [in] Global Pointer to ESAL_FWB_GLOBAL that contains all
instance data
@param [in] Virtual Whether CPU is in virtual or physical mode
@retval EFI_SUCCESS The firmware volume was read successfully and
contents are in Buffer
@retval EFI_BAD_BUFFER_SIZE Read attempted across a LBA boundary. On output,
NumBytes contains the total number of bytes returned
in Buffer
@retval EFI_ACCESS_DENIED The firmware volume is in the ReadDisabled state
@retval EFI_DEVICE_ERROR The block device is not functioning correctly and
could not be read
@retval EFI_INVALID_PARAMETER Instance not found, or NumBytes, Buffer are NULL
**/
EFI_STATUS
FvbReadBlock (
IN UINTN Instance,
IN EFI_LBA Lba,
IN UINTN BlockOffset,
IN OUT UINTN *NumBytes,
IN UINT8 *Buffer,
IN ESAL_FWB_GLOBAL *Global,
IN BOOLEAN Virtual
)
{
EFI_FVB_ATTRIBUTES_2 Attributes;
UINTN LbaAddress;
UINTN LbaLength;
EFI_STATUS Status;
//
// Check for invalid conditions
//
if ((NumBytes == NULL) || (Buffer == NULL)) {
return EFI_INVALID_PARAMETER;
}
if (*NumBytes == 0) {
return EFI_INVALID_PARAMETER;
}
Status = FvbGetLbaAddress (Instance, Lba, &LbaAddress, &LbaLength, NULL, Global, Virtual);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Check if the FV is read enabled
//
FvbGetVolumeAttributes (Instance, &Attributes, Global, Virtual);
if ((Attributes & EFI_FVB2_READ_STATUS) == 0) {
return EFI_ACCESS_DENIED;
}
//
// Perform boundary checks and adjust NumBytes
//
if (BlockOffset > LbaLength) {
return EFI_INVALID_PARAMETER;
}
if (LbaLength < (*NumBytes + BlockOffset)) {
*NumBytes = (UINT32) (LbaLength - BlockOffset);
Status = EFI_BAD_BUFFER_SIZE;
}
// CopyMem (Buffer, (UINT8 *) (LbaAddress + BlockOffset), (UINTN) (*NumBytes));
Status = FlashRead (Buffer, (UINT8 *) (LbaAddress + BlockOffset), (UINTN) (*NumBytes));
return Status;
}
/**
Writes specified number of bytes from the input buffer to the block
@param [in] Instance The FV instance to be written to
@param [in] Lba The starting logical block index to write to
@param [in] BlockOffset Offset into the block at which to begin writing
@param [in, out] NumBytes Pointer that on input contains the total size of
the buffer. On output, it contains the total number
of bytes actually written
@param [in] Buffer Pointer to a caller allocated buffer that contains
the source for the write
@param [in] Global Pointer to ESAL_FWB_GLOBAL that contains all
instance data
@param [in] Virtual Whether CPU is in virtual or physical mode
@retval EFI_SUCCESS The firmware volume was written successfully
@retval EFI_BAD_BUFFER_SIZE Write attempted across a LBA boundary. On output,
NumBytes contains the total number of bytes
actually written
@retval EFI_ACCESS_DENIED The firmware volume is in the WriteDisabled state
@retval EFI_DEVICE_ERROR The block device is not functioning correctly and
could not be written
@retval EFI_INVALID_PARAMETER Instance not found, or NumBytes, Buffer are NULL
**/
EFI_STATUS
FvbWriteBlock (
IN UINTN Instance,
IN EFI_LBA Lba,
IN UINTN BlockOffset,
IN OUT UINTN *NumBytes,
IN UINT8 *Buffer,
IN ESAL_FWB_GLOBAL *Global,
IN BOOLEAN Virtual
)
{
EFI_FVB_ATTRIBUTES_2 Attributes;
UINTN LbaAddress;
UINTN LbaLength;
EFI_STATUS Status;
//
// Check for invalid conditions
//
if ((NumBytes == NULL) || (Buffer == NULL)) {
return EFI_INVALID_PARAMETER;
}
if (*NumBytes == 0) {
return EFI_INVALID_PARAMETER;
}
Status = FvbGetLbaAddress (Instance, Lba, &LbaAddress, &LbaLength, NULL, Global, Virtual);
if (EFI_ERROR (Status)) {
return Status;
}
//
// Check if the FV is write enabled
//
FvbGetVolumeAttributes (Instance, &Attributes, Global, Virtual);
if ((Attributes & EFI_FVB2_WRITE_STATUS) == 0) {
return EFI_ACCESS_DENIED;
}
//
// Perform boundary checks and adjust NumBytes
//
if (BlockOffset > LbaLength) {
return EFI_INVALID_PARAMETER;
}
if (LbaLength < (*NumBytes + BlockOffset)) {
*NumBytes = (UINT32) (LbaLength - BlockOffset);
Status = EFI_BAD_BUFFER_SIZE;
}
//
// Write data
//
Status = FlashProgram ((UINT8 *) (LbaAddress + BlockOffset), Buffer, NumBytes, LbaAddress + BlockOffset);
return Status;
}
/**
Erases and initializes a firmware volume block
@param [in] Instance The FV instance to be erased
@param [in] Lba The logical block index to be erased
@param [in] Global Pointer to ESAL_FWB_GLOBAL that contains all
instance data
@param [in] Virtual Whether CPU is in virtual or physical mode
@retval EFI_SUCCESS The erase request was successfully completed
@retval EFI_ACCESS_DENIED The firmware volume is in the WriteDisabled state
@retval EFI_DEVICE_ERROR The block device is not functioning correctly and
could not be written. Firmware device may have been
partially erased
@retval EFI_INVALID_PARAMETER Instance not found
**/
EFI_STATUS
FvbEraseBlock (
IN UINTN Instance,
IN EFI_LBA Lba,
IN ESAL_FWB_GLOBAL *Global,
IN BOOLEAN Virtual
)
{
EFI_FVB_ATTRIBUTES_2 Attributes;
UINTN LbaAddress;
UINTN LbaLength;
EFI_STATUS Status;
//
// Check if the FV is write enabled
//
FvbGetVolumeAttributes (Instance, &Attributes, Global, Virtual);
if ((Attributes & EFI_FVB2_WRITE_STATUS) == 0) {
return EFI_ACCESS_DENIED;
}
//
// Get the starting address of the block for erase.
//
Status = FvbGetLbaAddress (Instance, Lba, &LbaAddress, &LbaLength, NULL, Global, Virtual);
if (EFI_ERROR (Status)) {
return Status;
}
Status = FlashErase (LbaAddress, LbaLength);
return Status;
}
/**
Modifies the current settings of the firmware volume according to the
input parameter, and returns the new setting of the volume
@param [in] Instance The FV instance whose attributes is going to be
modified
@param [in, out] Attributes On input, it is a pointer to EFI_FVB_ATTRIBUTES_2
containing the desired firmware volume settings.
On successful return, it contains the new settings
of the firmware volume
@param [in] Global Pointer to ESAL_FWB_GLOBAL that contains all
instance data
@param [in] Virtual Whether CPU is in virtual or physical mode
@retval EFI_SUCCESS Successfully returns
@retval EFI_ACCESS_DENIED The volume setting is locked and cannot be modified
@retval EFI_INVALID_PARAMETER Instance not found, or The attributes requested are
in conflict with the capabilities as declared in the
firmware volume header
**/
EFI_STATUS
FvbSetVolumeAttributes (
IN UINTN Instance,
IN OUT EFI_FVB_ATTRIBUTES_2 *Attributes,
IN ESAL_FWB_GLOBAL *Global,
IN BOOLEAN Virtual
)
{
EFI_FW_VOL_INSTANCE *FwhInstance;
EFI_FVB_ATTRIBUTES_2 OldAttributes;
EFI_FVB_ATTRIBUTES_2 *AttribPtr;
UINT32 Capabilities;
UINT32 OldStatus;
UINT32 NewStatus;
EFI_STATUS Status;
EFI_FVB_ATTRIBUTES_2 UnchangedAttributes;
//
// Find the right instance of the FVB private data
//
Status = GetFvbInstance (Instance, Global, &FwhInstance, Virtual);
ASSERT_EFI_ERROR (Status);
AttribPtr = (EFI_FVB_ATTRIBUTES_2 *) &(FwhInstance->VolumeHeader.Attributes);
OldAttributes = *AttribPtr;
Capabilities = OldAttributes & (EFI_FVB2_READ_DISABLED_CAP | \
EFI_FVB2_READ_ENABLED_CAP | \
EFI_FVB2_WRITE_DISABLED_CAP | \
EFI_FVB2_WRITE_ENABLED_CAP | \
EFI_FVB2_LOCK_CAP \
);
OldStatus = OldAttributes & EFI_FVB2_STATUS;
NewStatus = *Attributes & EFI_FVB2_STATUS;
UnchangedAttributes = EFI_FVB2_READ_DISABLED_CAP | \
EFI_FVB2_READ_ENABLED_CAP | \
EFI_FVB2_WRITE_DISABLED_CAP | \
EFI_FVB2_WRITE_ENABLED_CAP | \
EFI_FVB2_LOCK_CAP | \
EFI_FVB2_STICKY_WRITE | \
EFI_FVB2_MEMORY_MAPPED | \
EFI_FVB2_ERASE_POLARITY | \
EFI_FVB2_READ_LOCK_CAP | \
EFI_FVB2_WRITE_LOCK_CAP | \
EFI_FVB2_ALIGNMENT;
//
// Some attributes of FV is read only can *not* be set
//
if ((OldAttributes & UnchangedAttributes) ^ (*Attributes & UnchangedAttributes)) {
return EFI_INVALID_PARAMETER;
}
//
// If firmware volume is locked, no status bit can be updated
//
if (OldAttributes & EFI_FVB2_LOCK_STATUS) {
if (OldStatus ^ NewStatus) {
return EFI_ACCESS_DENIED;
}
}
//
// Test read disable
//
if ((Capabilities & EFI_FVB2_READ_DISABLED_CAP) == 0) {
if ((NewStatus & EFI_FVB2_READ_STATUS) == 0) {
return EFI_INVALID_PARAMETER;
}
}
//
// Test read enable
//
if ((Capabilities & EFI_FVB2_READ_ENABLED_CAP) == 0) {
if (NewStatus & EFI_FVB2_READ_STATUS) {
return EFI_INVALID_PARAMETER;
}
}
//
// Test write disable
//
if ((Capabilities & EFI_FVB2_WRITE_DISABLED_CAP) == 0) {
if ((NewStatus & EFI_FVB2_WRITE_STATUS) == 0) {
return EFI_INVALID_PARAMETER;
}
}
//
// Test write enable
//
if ((Capabilities & EFI_FVB2_WRITE_ENABLED_CAP) == 0) {
if (NewStatus & EFI_FVB2_WRITE_STATUS) {
return EFI_INVALID_PARAMETER;
}
}
//
// Test lock
//
if ((Capabilities & EFI_FVB2_LOCK_CAP) == 0) {
if (NewStatus & EFI_FVB2_LOCK_STATUS) {
return EFI_INVALID_PARAMETER;
}
}
*AttribPtr = (*AttribPtr) & (0xFFFFFFFF & (~EFI_FVB2_STATUS));
*AttribPtr = (*AttribPtr) | NewStatus;
*Attributes = *AttribPtr;
return EFI_SUCCESS;
}
//
// FVB protocol APIs
//
/**
Retrieves the physical address of the device.
@param [in] This Calling context
@param [out] Address Output buffer containing the address.
@retval Returns:
@retval EFI_SUCCESS Successfully returns
**/
EFI_STATUS
EFIAPI
FvbProtocolGetPhysicalAddress (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
OUT EFI_PHYSICAL_ADDRESS *Address
)
{
EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;
FvbDevice = FVB_DEVICE_FROM_THIS (This);
return FvbGetPhysicalAddress (FvbDevice->Instance, Address, mFvbModuleGlobal, EfiGoneVirtual ());
}
/**
Retrieve the size of a logical block
@param [in] This Calling context
@param [in] Lba Indicates which block to return the size for.
@param [out] BlockSize A pointer to a caller allocated UINTN in which
the size of the block is returned
@param [out] NumOfBlocks a pointer to a caller allocated UINTN in which the
number of consecutive blocks starting with Lba is
returned. All blocks in this range have a size of
BlockSize
@retval EFI_SUCCESS The firmware volume was read successfully and
contents are in Buffer
**/
EFI_STATUS
EFIAPI
FvbProtocolGetBlockSize (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
IN CONST EFI_LBA Lba,
OUT UINTN *BlockSize,
OUT UINTN *NumOfBlocks
)
{
EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;
FvbDevice = FVB_DEVICE_FROM_THIS (This);
return FvbGetLbaAddress (
FvbDevice->Instance,
Lba,
NULL,
BlockSize,
NumOfBlocks,
mFvbModuleGlobal,
EfiGoneVirtual ()
);
}
/**
Retrieves Volume attributes. No polarity translations are done.
@param [in] This Calling context
@param [out] Attributes output buffer which contains attributes
@retval EFI_SUCCESS Successfully returns
**/
EFI_STATUS
EFIAPI
FvbProtocolGetAttributes (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
OUT EFI_FVB_ATTRIBUTES_2 *Attributes
)
{
EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;
FvbDevice = FVB_DEVICE_FROM_THIS (This);
return FvbGetVolumeAttributes (FvbDevice->Instance, Attributes, mFvbModuleGlobal, EfiGoneVirtual ());
}
/**
Sets Volume attributes. No polarity translations are done.
@param [in] This Calling context
@param [in, out] Attributes output buffer which contains attributes
@retval EFI_SUCCESS Successfully returns
**/
EFI_STATUS
EFIAPI
FvbProtocolSetAttributes (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
IN OUT EFI_FVB_ATTRIBUTES_2 *Attributes
)
{
EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;
FvbDevice = FVB_DEVICE_FROM_THIS (This);
return FvbSetVolumeAttributes (FvbDevice->Instance, Attributes, mFvbModuleGlobal, EfiGoneVirtual ());
}
/**
The EraseBlock() function erases one or more blocks as denoted by the
variable argument list. The entire parameter list of blocks must be verified
prior to erasing any blocks. If a block is requested that does not exist
within the associated firmware volume (it has a larger index than the last
block of the firmware volume), the EraseBlock() function must return
EFI_INVALID_PARAMETER without modifying the contents of the firmware volume.
@retval EFI_SUCCESS The erase request was successfully completed
@retval EFI_ACCESS_DENIED The firmware volume is in the WriteDisabled state
@retval EFI_DEVICE_ERROR The block device is not functioning correctly and
could not be written. Firmware device may have been
partially erased
**/
EFI_STATUS
EFIAPI
FvbProtocolEraseBlocks (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
...
)
{
EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;
EFI_FW_VOL_INSTANCE *FwhInstance;
UINTN NumOfBlocks;
VA_LIST args;
EFI_LBA StartingLba;
UINTN NumOfLba;
EFI_STATUS Status;
FvbDevice = FVB_DEVICE_FROM_THIS (This);
Status = GetFvbInstance (FvbDevice->Instance, mFvbModuleGlobal, &FwhInstance, EfiGoneVirtual ());
ASSERT_EFI_ERROR (Status);
if (EFI_ERROR (Status)) {
return Status;
}
NumOfBlocks = FwhInstance->NumOfBlocks;
VA_START (args, This);
do {
StartingLba = VA_ARG (args, EFI_LBA);
if (StartingLba == EFI_LBA_LIST_TERMINATOR) {
break;
}
NumOfLba = VA_ARG (args, UINT32);
//
// Check input parameters
//
if (NumOfLba == 0 || (StartingLba + NumOfLba) > NumOfBlocks) {
VA_END (args);
return EFI_INVALID_PARAMETER;
}
} while (1);
VA_END (args);
VA_START (args, This);
do {
StartingLba = VA_ARG (args, EFI_LBA);
if (StartingLba == EFI_LBA_LIST_TERMINATOR) {
break;
}
NumOfLba = VA_ARG (args, UINT32);
while (NumOfLba > 0) {
Status = FvbEraseBlock (FvbDevice->Instance, StartingLba, mFvbModuleGlobal, EfiGoneVirtual ());
if (EFI_ERROR (Status)) {
VA_END (args);
return Status;
}
StartingLba++;
NumOfLba--;
}
} while (1);
VA_END (args);
return EFI_SUCCESS;
}
/**
Writes data beginning at Lba:Offset from FV. The write terminates either
when *NumBytes of data have been written, or when a block boundary is
reached. *NumBytes is updated to reflect the actual number of bytes
written. The write opertion does not include erase. This routine will
attempt to write only the specified bytes. If the writes do not stick,
it will return an error.
@param [in] This Calling context
@param [in] Lba Block in which to begin write
@param [in] Offset Offset in the block at which to begin write
@param [in, out] NumBytes On input, indicates the requested write size. On
output, indicates the actual number of bytes written
@param [in] Buffer Buffer containing source data for the write.
@retval EFI_SUCCESS The firmware volume was written successfully
@retval EFI_BAD_BUFFER_SIZE Write attempted across a LBA boundary. On output,
NumBytes contains the total number of bytes
actually written
@retval EFI_ACCESS_DENIED The firmware volume is in the WriteDisabled state
@retval EFI_DEVICE_ERROR The block device is not functioning correctly and
could not be written
@retval EFI_INVALID_PARAMETER NumBytes or Buffer are NULL
**/
EFI_STATUS
EFIAPI
FvbProtocolWrite (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
IN EFI_LBA Lba,
IN UINTN Offset,
IN OUT UINTN *NumBytes,
IN UINT8 *Buffer
)
{
EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;
FvbDevice = FVB_DEVICE_FROM_THIS (This);
return FvbWriteBlock (FvbDevice->Instance, (EFI_LBA)Lba, (UINTN)Offset, NumBytes, (UINT8 *)Buffer, mFvbModuleGlobal, EfiGoneVirtual ());
}
/**
Reads data beginning at Lba:Offset from FV. The Read terminates either
when *NumBytes of data have been read, or when a block boundary is
reached. *NumBytes is updated to reflect the actual number of bytes
written. The write opertion does not include erase. This routine will
attempt to write only the specified bytes. If the writes do not stick,
it will return an error.
@param [in] This Calling context
@param [in] Lba Block in which to begin Read
@param [in] Offset Offset in the block at which to begin Read
@param [in, out] NumBytes On input, indicates the requested write size. On
output, indicates the actual number of bytes Read
@param [in] Buffer Buffer containing source data for the Read.
@retval EFI_SUCCESS The firmware volume was read successfully and
contents are in Buffer
@retval EFI_BAD_BUFFER_SIZE Read attempted across a LBA boundary. On output,
NumBytes contains the total number of bytes returned
in Buffer
@retval EFI_ACCESS_DENIED The firmware volume is in the ReadDisabled state
@retval EFI_DEVICE_ERROR The block device is not functioning correctly and
could not be read
@retval EFI_INVALID_PARAMETER NumBytes or Buffer are NULL
**/
EFI_STATUS
EFIAPI
FvbProtocolRead (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
IN CONST EFI_LBA Lba,
IN CONST UINTN Offset,
IN OUT UINTN *NumBytes,
IN UINT8 *Buffer
)
{
EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;
if (!mFvbInstalledComplete) {
return EFI_ACCESS_DENIED;
}
FvbDevice = FVB_DEVICE_FROM_THIS (This);
return FvbReadBlock (FvbDevice->Instance, Lba, Offset, NumBytes, Buffer, mFvbModuleGlobal, EfiGoneVirtual ());
}
/**
Check the integrity of firmware volume header
@param FwVolHeader A pointer to a firmware volume header
@retval EFI_SUCCESS The firmware volume is consistent
@retval EFI_NOT_FOUND The firmware volume has corrupted. So it is not an FV
**/
EFI_STATUS
ValidateFvHeader (
EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader
)
{
//
// Verify the header revision, header signature, length
// Length of FvBlock cannot be 2**64-1
// HeaderLength cannot be an odd number
//
if (
(FwVolHeader->Revision != EFI_FVH_REVISION) ||
(FwVolHeader->Signature != EFI_FVH_SIGNATURE) ||
(FwVolHeader->FvLength == ((UINTN) -1)) ||
((FwVolHeader->HeaderLength & 0x01) != 0)
) {
return EFI_NOT_FOUND;
}
//
// Verify the header checksum
//
if (CalculateCheckSum16 ((UINT16 *) FwVolHeader, FwVolHeader->HeaderLength) != 0) {
return EFI_NOT_FOUND;
}
return EFI_SUCCESS;
}
STATIC
EFI_STATUS
EFIAPI
UpdateDefaultMediaInfo (
) {
UINT8 Index;
UINT64 Size;
Index = 0;
Size = 0;
mFvRegionInfo[Index].ImageTypeGuid = gIrsiBiosImageGuid;
mFvRegionInfo[Index].ImageOffset = 0;
mFvRegionInfo[Index].ImageSize = (UINTN) FdmGetFlashAreaSize();
Index++;
//
// DXE FV
//
if (((Size = FdmGetSizeById (&gH2OFlashMapRegionFvGuid, &gH2OFlashMapRegionDxeFvGuid, 1)) > 0 ) && (Index < mFvRegionInfoTableCount)){
mFvRegionInfo[Index].ImageTypeGuid = gIrsiDxeImageGuid;
mFvRegionInfo[Index].ImageOffset = (UINTN) (FdmGetAddressById(&gH2OFlashMapRegionFvGuid, &gH2OFlashMapRegionDxeFvGuid, 1) - FdmGetBaseAddr());
mFvRegionInfo[Index].ImageSize = (UINTN) Size;
Index++;
}
//
// PEI FV
//
if (((Size = FdmGetNAtSize (&gH2OFlashMapRegionBootFvGuid, 1)) > 0 ) && (Index < mFvRegionInfoTableCount)){
mFvRegionInfo[Index].ImageTypeGuid = gIrsiPeiImageGuid;
mFvRegionInfo[Index].ImageOffset = (UINTN) ( FdmGetNAtAddr (&gH2OFlashMapRegionBootFvGuid, 1) - FdmGetBaseAddr());
mFvRegionInfo[Index].ImageSize = (UINTN) Size;
Index++;
}
//
// Variable
//
if (((Size = FdmGetNAtSize (&gH2OFlashMapRegionVarGuid, 1)) > 0 ) && (Index < mFvRegionInfoTableCount)) {
mFvRegionInfo[Index].ImageTypeGuid = gIrsiVariableImageGuid;
mFvRegionInfo[Index].ImageOffset = (UINTN) (FdmGetNAtAddr (&gH2OFlashMapRegionVarGuid, 1)- FdmGetBaseAddr());
mFvRegionInfo[Index].ImageSize = (UINTN) Size;
Index++;
}
//
// Factory Copy
//
if (((Size = FdmGetSizeById (&gH2OFlashMapRegionVarDefaultGuid, &gH2OFlashMapRegionFactoryCopyGuid, 1)) > 0 ) && (Index < mFvRegionInfoTableCount)){
mFvRegionInfo[Index].ImageTypeGuid = gIrsiFactoryCopyImageGuid;
mFvRegionInfo[Index].ImageOffset = (UINTN) (FdmGetAddressById (&gH2OFlashMapRegionVarDefaultGuid, &gH2OFlashMapRegionFactoryCopyGuid, 1) - FdmGetBaseAddr());
mFvRegionInfo[Index].ImageSize = (UINTN) Size;
Index++;
}
//
// Microcode
//
if (((Size = FdmGetNAtSize(&gH2OFlashMapRegionMicrocodeGuid, 1)) > 0 ) && (Index < mFvRegionInfoTableCount)){
mFvRegionInfo[Index].ImageTypeGuid = gIrsiMicrocodeImageGuid;
mFvRegionInfo[Index].ImageOffset = (UINTN) (FdmGetNAtAddr(&gH2OFlashMapRegionMicrocodeGuid, 1) - FdmGetBaseAddr ());
mFvRegionInfo[Index].ImageSize = (UINTN) Size;
Index++;
}
//
// BVDT
//
if (((Size = FdmGetNAtSize(&gH2OFlashMapRegionBvdtGuid, 1)) > 0 ) && (Index < mFvRegionInfoTableCount)){
mFvRegionInfo[Index].ImageTypeGuid = gIrsiBvdtImageGuid;
mFvRegionInfo[Index].ImageOffset = (UINTN) (FdmGetNAtAddr(&gH2OFlashMapRegionBvdtGuid, 1) - FdmGetBaseAddr ());
mFvRegionInfo[Index].ImageSize = (UINTN) Size;
Index++;
}
//
// DMI
//
if (((Size = FdmGetNAtSize(&gH2OFlashMapRegionSmbiosUpdateGuid, 1)) > 0 ) && (Index < mFvRegionInfoTableCount)){
mFvRegionInfo[Index].ImageTypeGuid = gIrsiDmiImageGuid;
mFvRegionInfo[Index].ImageOffset = (UINTN) (FdmGetNAtAddr(&gH2OFlashMapRegionSmbiosUpdateGuid, 1) - FdmGetBaseAddr ());
mFvRegionInfo[Index].ImageSize = (UINTN) Size;
Index++;
}
mPlatformFvbMediaInfo.BaseAddress = (EFI_PHYSICAL_ADDRESS) FdmGetBaseAddr ();
mPlatformFvbMediaInfo.FvRegionInfo = mFvRegionInfo;
mPlatformFvbMediaInfo.FvHeader.FvLength = FdmGetFlashAreaSize();
mPlatformFvbMediaInfo.FvHeader.BlockMap->NumBlocks = (UINT32) FdmGetFlashAreaSize ()/FixedPcdGet32 (PcdFirmwareBlockSize);
return EFI_SUCCESS;
}
/**
This function does common initialization for FVB services
@param [in] ImageHandle
@param [in] SystemTable
**/
EFI_STATUS
EFIAPI
FlashDeviceFvbInitialize (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EFI_FW_VOL_INSTANCE *FwhInstance;
EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader;
EFI_DXE_SERVICES *DxeServices;
UINT32 BufferSize;
EFI_FV_BLOCK_MAP_ENTRY *PtrBlockMapEntry;
EFI_HANDLE FwbHandle;
EFI_FW_VOL_BLOCK_DEVICE *FvbDevice;
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *OldFwbInterface;
UINT32 MaxLbaSize;
EFI_PHYSICAL_ADDRESS BaseAddress;
UINTN NumOfBlocks;
FVB_MEDIA_INFO *FvbMediaInfo;
EFI_EVENT VirtualAddressChangeEvent;
EFI_EVENT ReadyToBootEvent;
//
// Get the DXE services table
//
DxeServices = gDS;
//
// Allocate runtime services data for global variable, which contains
// the private data of all firmware volume block instances
//
mFvbModuleGlobal = AllocateRuntimePool (sizeof (ESAL_FWB_GLOBAL));
if (mFvbModuleGlobal == NULL) {
ASSERT (mFvbModuleGlobal != NULL);
return EFI_OUT_OF_RESOURCES;
}
//
// Calculate the total size for all firmware volume block instances
//
UpdateDefaultMediaInfo ();
FvbMediaInfo = GetFvbMediaInfo();
BaseAddress = FvbMediaInfo->BaseAddress;
FwVolHeader = &FvbMediaInfo->FvHeader;
FwVolHeader->Checksum = CalculateCheckSum16 ((UINT16 *)FwVolHeader, FwVolHeader->HeaderLength);
Status = ValidateFvHeader (FwVolHeader);
ASSERT_EFI_ERROR (Status);
BufferSize = (sizeof (EFI_FW_VOL_INSTANCE) + FwVolHeader->HeaderLength - sizeof (EFI_FIRMWARE_VOLUME_HEADER));
//
// Only need to allocate once. There is only one copy of physical memory for
// the private data of each FV instance. But in virtual mode or in physical
// mode, the address of the the physical memory may be different.
//
mFvbModuleGlobal->FvInstance[FVB_PHYSICAL] = AllocateRuntimePool (BufferSize);
if (mFvbModuleGlobal->FvInstance[FVB_PHYSICAL] == NULL) {
ASSERT (mFvbModuleGlobal->FvInstance[FVB_PHYSICAL] != NULL);
FreePool (mFvbModuleGlobal);
return EFI_OUT_OF_RESOURCES;
}
//
// Make a virtual copy of the FvInstance pointer.
//
FwhInstance = mFvbModuleGlobal->FvInstance[FVB_PHYSICAL];
mFvbModuleGlobal->FvInstance[FVB_VIRTUAL] = FwhInstance;
mFvbModuleGlobal->NumFv = 0;
MaxLbaSize = 0;
FwhInstance->FvBase[FVB_PHYSICAL] = (UINTN) BaseAddress;
FwhInstance->FvBase[FVB_VIRTUAL] = (UINTN) BaseAddress;
CopyMem ((UINTN *) &(FwhInstance->VolumeHeader), (UINTN *) FwVolHeader, FwVolHeader->HeaderLength);
FwVolHeader = &(FwhInstance->VolumeHeader);
EfiInitializeLock (&(FwhInstance->FvbDevLock), TPL_HIGH_LEVEL);
NumOfBlocks = 0;
for (PtrBlockMapEntry = FwVolHeader->BlockMap; PtrBlockMapEntry->NumBlocks != 0; PtrBlockMapEntry++) {
//
// Get the maximum size of a block.
//
if (MaxLbaSize < PtrBlockMapEntry->Length) {
MaxLbaSize = PtrBlockMapEntry->Length;
}
NumOfBlocks = NumOfBlocks + PtrBlockMapEntry->NumBlocks;
}
//
// The total number of blocks in the FV.
//
FwhInstance->NumOfBlocks = NumOfBlocks;
//
// Add a FVB Protocol Instance
//
FvbDevice = AllocateRuntimePool (sizeof (EFI_FW_VOL_BLOCK_DEVICE));
if (FvbDevice == NULL) {
ASSERT (FvbDevice != NULL);
FreePool (mFvbModuleGlobal->FvInstance[FVB_PHYSICAL]);
FreePool (mFvbModuleGlobal);
return EFI_OUT_OF_RESOURCES;
}
CopyMem (FvbDevice, &mFvbDeviceTemplate, sizeof (EFI_FW_VOL_BLOCK_DEVICE));
FvbDevice->Instance = mFvbModuleGlobal->NumFv;
mFvbModuleGlobal->NumFv++;
//
// Set up the devicepath
//
if (FwVolHeader->ExtHeaderOffset == 0) {
//
// FV does not contains extension header, then produce MEMMAP_DEVICE_PATH
//
FvbDevice->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) AllocateCopyPool (sizeof (FV_MEMMAP_DEVICE_PATH), &mFvMemmapDevicePathTemplate);
if (FvbDevice->DevicePath == NULL) {
return EFI_OUT_OF_RESOURCES;
}
((FV_MEMMAP_DEVICE_PATH *) FvbDevice->DevicePath)->MemMapDevPath.StartingAddress = BaseAddress;
((FV_MEMMAP_DEVICE_PATH *) FvbDevice->DevicePath)->MemMapDevPath.EndingAddress = BaseAddress + FwVolHeader->FvLength - 1;
} else {
FvbDevice->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) AllocateCopyPool (sizeof (FV_PIWG_DEVICE_PATH), &mFvPIWGDevicePathTemplate);
if (FvbDevice->DevicePath == NULL) {
return EFI_OUT_OF_RESOURCES;
}
CopyGuid (
&((FV_PIWG_DEVICE_PATH *)FvbDevice->DevicePath)->FvDevPath.FvName,
(GUID *)(UINTN)(BaseAddress + FwVolHeader->ExtHeaderOffset)
);
}
//
// Find a handle with a matching device path that has supports FW Block protocol
//
Status = gBS->LocateDevicePath (&gEfiFirmwareVolumeBlockProtocolGuid, &FvbDevice->DevicePath, &FwbHandle);
if (EFI_ERROR (Status)) {
//
// LocateDevicePath fails so install a new interface and device path
//
FwbHandle = NULL;
Status = gBS->InstallMultipleProtocolInterfaces (
&FwbHandle,
&gEfiFirmwareVolumeBlockProtocolGuid,
&FvbDevice->FwVolBlockInstance,
&gEfiDevicePathProtocolGuid,
FvbDevice->DevicePath,
NULL
);
ASSERT_EFI_ERROR (Status);
} else if (IsDevicePathEnd (FvbDevice->DevicePath)) {
//
// Device allready exists, so reinstall the FVB protocol
//
Status = gBS->HandleProtocol (
FwbHandle,
&gEfiFirmwareVolumeBlockProtocolGuid,
(VOID**)&OldFwbInterface
);
ASSERT_EFI_ERROR (Status);
Status = gBS->ReinstallProtocolInterface (
FwbHandle,
&gEfiFirmwareVolumeBlockProtocolGuid,
OldFwbInterface,
&FvbDevice->FwVolBlockInstance
);
ASSERT_EFI_ERROR (Status);
} else {
//
// There was a FVB protocol on an End Device Path node
//
ASSERT (FALSE);
}
if (FvbMediaInfo->FvRegionInfo != NULL) {
Status = gBS->InstallProtocolInterface (
&FwbHandle,
&gFvRegionInfoProtocolGuid,
EFI_NATIVE_INTERFACE,
FvbMediaInfo->FvRegionInfo
);
ASSERT_EFI_ERROR(Status);
}
mFvbInstalledComplete = TRUE;
Status = gBS->CreateEventEx (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
FvbVirtualddressChangeEvent,
NULL,
&gEfiEventVirtualAddressChangeGuid,
&VirtualAddressChangeEvent
);
ASSERT_EFI_ERROR(Status);
Status = EfiCreateEventReadyToBootEx (
TPL_CALLBACK,
FvbReadyToBootCallback,
NULL,
&ReadyToBootEvent
);
ASSERT_EFI_ERROR (Status);
return EFI_SUCCESS;
}
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