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OvmfPkg: QemuFlashFvbServicesRuntimeDxe: rewrap source code to 79 chars 

Some of the line lengths in this driver are atrocious. While we have to
put up with the status quo outside of OvmfPkg, we can at least rewrap this
driver before refactoring it.

In the FvbInitialize() function there's no way around introducing two
local variables, just for the sake of sensibly rewrapping the code.

Furthermore, in "FwBlockService.c" the function comment blocks are now
indented; their original position causes diff to print bogus function
names at the top of hunks.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18666 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Laszlo Ersek 2015-10-26 14:58:08 +00:00 committed by lersek
parent 141f0c6445
commit ea0d111efe
6 changed files with 337 additions and 282 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FvbInfo.c
View File

@ -1,22 +1,23 @@
/**@file
Copyright (c) 2006, 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
Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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
Module Name:
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
FvbInfo.c
Module Name:
Abstract:
FvbInfo.c
Defines data structure that is the volume header found.These data is intent
to decouple FVB driver with FV header.
Abstract:
Defines data structure that is the volume header found.These data is intent
to decouple FVB driver with FV header.
**/
@ -94,7 +95,8 @@ EFI_FVB_MEDIA_INFO mPlatformFvbMediaInfo[] = {
(FixedPcdGet32 (PcdFlashNvStorageVariableSize) +
FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) +
FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) +
FixedPcdGet32 (PcdOvmfFlashNvStorageEventLogSize)) / FixedPcdGet32 (PcdOvmfFirmwareBlockSize),
FixedPcdGet32 (PcdOvmfFlashNvStorageEventLogSize)) /
FixedPcdGet32 (PcdOvmfFirmwareBlockSize),
FixedPcdGet32 (PcdOvmfFirmwareBlockSize),
}
} // BlockMap[1]
@ -118,7 +120,9 @@ GetFvbInfo (
UINTN Index;
if (!Checksummed) {
for (Index = 0; Index < sizeof (mPlatformFvbMediaInfo) / sizeof (EFI_FVB_MEDIA_INFO); Index += 1) {
for (Index = 0;
Index < sizeof (mPlatformFvbMediaInfo) / sizeof (EFI_FVB_MEDIA_INFO);
Index += 1) {
UINT16 Checksum;
mPlatformFvbMediaInfo[Index].FvbInfo.Checksum = 0;
Checksum = CalculateCheckSum16 (
@ -130,7 +134,9 @@ GetFvbInfo (
Checksummed = TRUE;
}
for (Index = 0; Index < sizeof (mPlatformFvbMediaInfo) / sizeof (EFI_FVB_MEDIA_INFO); Index += 1) {
for (Index = 0;
Index < sizeof (mPlatformFvbMediaInfo) / sizeof (EFI_FVB_MEDIA_INFO);
Index += 1) {
if (mPlatformFvbMediaInfo[Index].FvLength == FvLength) {
*FvbInfo = &mPlatformFvbMediaInfo[Index].FvbInfo;
return EFI_SUCCESS;

25
OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FvbServicesRuntimeDxe.inf
View File

@ -1,17 +1,20 @@
## @file
# Component description file for QEMU Flash Fimware Volume Block DXE driver module.
# Component description file for QEMU Flash Fimware Volume Block DXE driver
# module.
#
# This DXE runtime driver implements and produces the Fimware Volue Block Protocol
# for a QEMU flash device.
# This DXE runtime driver implements and produces the Fimware Volue Block
# Protocol for a QEMU flash device.
#
# Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
# Copyright (c) 2006 - 2013, 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
# 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.
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR
# IMPLIED.
#
##
@ -24,7 +27,8 @@
ENTRY_POINT = FvbInitialize
#
# The following information is for reference only and not required by the build tools.
# The following information is for reference only and not required by the build
# tools.
#
# VALID_ARCHITECTURES = IA32
#
@ -53,7 +57,8 @@
PcdLib
[Guids]
gEfiEventVirtualAddressChangeGuid # ALWAYS_CONSUMED Create Event: EVENT_GROUP_GUID
gEfiEventVirtualAddressChangeGuid # ALWAYS_CONSUMED
# gEfiEventVirtualAddressChangeGuid # Create Event: EVENT_GROUP_GUID
[Protocols]
gEfiFirmwareVolumeBlockProtocolGuid # PROTOCOL SOMETIMES_PRODUCED

513
OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FwBlockService.c
View File

@ -1,21 +1,22 @@
/**@file
Copyright (c) 2006 - 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
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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
Module Name:
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
FWBlockService.c
Module Name:
Abstract:
FWBlockService.c
Revision History
Abstract:
Revision History
**/
@ -48,7 +49,8 @@ Revision History
#include "FwBlockService.h"
#include "QemuFlash.h"
#define EFI_FVB2_STATUS (EFI_FVB2_READ_STATUS | EFI_FVB2_WRITE_STATUS | EFI_FVB2_LOCK_STATUS)
#define EFI_FVB2_STATUS \
(EFI_FVB2_READ_STATUS | EFI_FVB2_WRITE_STATUS | EFI_FVB2_LOCK_STATUS)
ESAL_FWB_GLOBAL *mFvbModuleGlobal;
@ -124,30 +126,32 @@ FvbVirtualddressChangeEvent (
)
/*++
Routine Description:
Routine Description:
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.
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.
mFvbModuleGlobal->FvInstance[FVB_PHYSICAL] - Physical copy of instance
data
mFvbModuleGlobal->FvInstance[FVB_VIRTUAL] - Virtual pointer to common
instance data.
Arguments:
Arguments:
(Standard EFI notify event - EFI_EVENT_NOTIFY)
(Standard EFI notify event - EFI_EVENT_NOTIFY)
Returns:
Returns:
None
None
--*/
{
EFI_FW_VOL_INSTANCE *FwhInstance;
UINTN Index;
EfiConvertPointer (0x0, (VOID **) &mFvbModuleGlobal->FvInstance[FVB_VIRTUAL]);
EfiConvertPointer (0x0,
(VOID **) &mFvbModuleGlobal->FvInstance[FVB_VIRTUAL]);
//
// Convert the base address of all the instances
@ -158,13 +162,15 @@ Returns:
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))
(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->FvbScratchSpace[FVB_VIRTUAL]);
EfiConvertPointer (0x0, (VOID **) &mFvbModuleGlobal);
QemuFlashConvertPointers ();
}
@ -178,20 +184,20 @@ GetFvbInstance (
)
/*++
Routine Description:
Retrieves the physical address of a memory mapped FV
Routine Description:
Retrieves the physical address of a memory mapped FV
Arguments:
Instance - The FV instance whose base address is going to be
returned
Global - Pointer to ESAL_FWB_GLOBAL that contains all
instance data
FwhInstance - The EFI_FW_VOL_INSTANCE fimrware instance structure
Virtual - Whether CPU is in virtual or physical mode
Arguments:
Instance - The FV instance whose base address is going to be
returned
Global - Pointer to ESAL_FWB_GLOBAL that contains all
instance data
FwhInstance - The EFI_FW_VOL_INSTANCE fimrware instance structure
Virtual - Whether CPU is in virtual or physical mode
Returns:
EFI_SUCCESS - Successfully returns
EFI_INVALID_PARAMETER - Instance not found
Returns:
EFI_SUCCESS - Successfully returns
EFI_INVALID_PARAMETER - Instance not found
--*/
{
@ -228,22 +234,22 @@ FvbGetPhysicalAddress (
)
/*++
Routine Description:
Retrieves the physical address of a memory mapped FV
Routine Description:
Retrieves the physical address of a memory mapped FV
Arguments:
Instance - The FV instance whose base address is going to be
returned
Address - Pointer to a caller allocated EFI_PHYSICAL_ADDRESS
that on successful return, contains the base address
of the firmware volume.
Global - Pointer to ESAL_FWB_GLOBAL that contains all
instance data
Virtual - Whether CPU is in virtual or physical mode
Arguments:
Instance - The FV instance whose base address is going to be
returned
Address - Pointer to a caller allocated EFI_PHYSICAL_ADDRESS
that on successful return, contains the base
address of the firmware volume.
Global - Pointer to ESAL_FWB_GLOBAL that contains all
instance data
Virtual - Whether CPU is in virtual or physical mode
Returns:
EFI_SUCCESS - Successfully returns
EFI_INVALID_PARAMETER - Instance not found
Returns:
EFI_SUCCESS - Successfully returns
EFI_INVALID_PARAMETER - Instance not found
--*/
{
@ -269,21 +275,21 @@ FvbGetVolumeAttributes (
)
/*++
Routine Description:
Retrieves attributes, insures positive polarity of attribute bits, returns
resulting attributes in output parameter
Routine Description:
Retrieves attributes, insures positive polarity of attribute bits, returns
resulting attributes in output parameter
Arguments:
Instance - The FV instance whose attributes is going to be
returned
Attributes - Output buffer which contains attributes
Global - Pointer to ESAL_FWB_GLOBAL that contains all
instance data
Virtual - Whether CPU is in virtual or physical mode
Arguments:
Instance - The FV instance whose attributes is going to be
returned
Attributes - Output buffer which contains attributes
Global - Pointer to ESAL_FWB_GLOBAL that contains all
instance data
Virtual - Whether CPU is in virtual or physical mode
Returns:
EFI_SUCCESS - Successfully returns
EFI_INVALID_PARAMETER - Instance not found
Returns:
EFI_SUCCESS - Successfully returns
EFI_INVALID_PARAMETER - Instance not found
--*/
{
@ -312,26 +318,26 @@ FvbGetLbaAddress (
)
/*++
Routine Description:
Retrieves the starting address of an LBA in an FV
Routine Description:
Retrieves the starting address of an LBA in an FV
Arguments:
Instance - The FV instance which the Lba belongs to
Lba - The logical block address
LbaAddress - On output, contains the physical starting address
of the Lba
LbaLength - On output, contains the length of the block
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
Global - Pointer to ESAL_FWB_GLOBAL that contains all
instance data
Virtual - Whether CPU is in virtual or physical mode
Arguments:
Instance - The FV instance which the Lba belongs to
Lba - The logical block address
LbaAddress - On output, contains the physical starting address
of the Lba
LbaLength - On output, contains the length of the block
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
Global - Pointer to ESAL_FWB_GLOBAL that contains all
instance data
Virtual - Whether CPU is in virtual or physical mode
Returns:
EFI_SUCCESS - Successfully returns
EFI_INVALID_PARAMETER - Instance not found
Returns:
EFI_SUCCESS - Successfully returns
EFI_INVALID_PARAMETER - Instance not found
--*/
{
@ -402,27 +408,27 @@ FvbSetVolumeAttributes (
)
/*++
Routine Description:
Modifies the current settings of the firmware volume according to the
input parameter, and returns the new setting of the volume
Routine Description:
Modifies the current settings of the firmware volume according to the
input parameter, and returns the new setting of the volume
Arguments:
Instance - The FV instance whose attributes is going to be
modified
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
Global - Pointer to ESAL_FWB_GLOBAL that contains all
instance data
Virtual - Whether CPU is in virtual or physical mode
Arguments:
Instance - The FV instance whose attributes is going to be
modified
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
Global - Pointer to ESAL_FWB_GLOBAL that contains all
instance data
Virtual - Whether CPU is in virtual or physical mode
Returns:
EFI_SUCCESS - Successfully returns
EFI_ACCESS_DENIED - The volume setting is locked and cannot be modified
EFI_INVALID_PARAMETER - Instance not found, or The attributes requested are
in conflict with the capabilities as declared in the
firmware volume header
Returns:
EFI_SUCCESS - Successfully returns
EFI_ACCESS_DENIED - The volume setting is locked and cannot be modified
EFI_INVALID_PARAMETER - Instance not found, or The attributes requested are
in conflict with the capabilities as declared in
the firmware volume header
--*/
{
@ -441,7 +447,8 @@ Returns:
Status = GetFvbInstance (Instance, Global, &FwhInstance, Virtual);
ASSERT_EFI_ERROR (Status);
AttribPtr = (EFI_FVB_ATTRIBUTES_2 *) &(FwhInstance->VolumeHeader.Attributes);
AttribPtr =
(EFI_FVB_ATTRIBUTES_2 *) &(FwhInstance->VolumeHeader.Attributes);
OldAttributes = *AttribPtr;
Capabilities = OldAttributes & (EFI_FVB2_READ_DISABLED_CAP | \
EFI_FVB2_READ_ENABLED_CAP | \
@ -467,7 +474,8 @@ Returns:
//
// Some attributes of FV is read only can *not* be set
//
if ((OldAttributes & UnchangedAttributes) ^ (*Attributes & UnchangedAttributes)) {
if ((OldAttributes & UnchangedAttributes) ^
(*Attributes & UnchangedAttributes)) {
return EFI_INVALID_PARAMETER;
}
//
@ -537,19 +545,17 @@ FvbProtocolGetPhysicalAddress (
)
/*++
Routine Description:
Routine Description:
Retrieves the physical address of the device.
Retrieves the physical address of the device.
Arguments:
Arguments:
This - Calling context
Address - Output buffer containing the address.
This - Calling context
Address - Output buffer containing the address.
Returns:
Returns:
EFI_SUCCESS - Successfully returns
Returns:
EFI_SUCCESS - Successfully returns
--*/
{
@ -557,7 +563,8 @@ Returns:
FvbDevice = FVB_DEVICE_FROM_THIS (This);
return FvbGetPhysicalAddress (FvbDevice->Instance, Address, mFvbModuleGlobal, EfiGoneVirtual ());
return FvbGetPhysicalAddress (FvbDevice->Instance, Address,
mFvbModuleGlobal, EfiGoneVirtual ());
}
EFI_STATUS
@ -570,22 +577,22 @@ FvbProtocolGetBlockSize (
)
/*++
Routine Description:
Retrieve the size of a logical block
Routine Description:
Retrieve the size of a logical block
Arguments:
This - Calling context
Lba - Indicates which block to return the size for.
BlockSize - A pointer to a caller allocated UINTN in which
the size of the block is returned
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
Arguments:
This - Calling context
Lba - Indicates which block to return the size for.
BlockSize - A pointer to a caller allocated UINTN in which
the size of the block is returned
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
Returns:
EFI_SUCCESS - The firmware volume was read successfully and
contents are in Buffer
Returns:
EFI_SUCCESS - The firmware volume was read successfully and
contents are in Buffer
--*/
{
@ -612,15 +619,15 @@ FvbProtocolGetAttributes (
)
/*++
Routine Description:
Retrieves Volume attributes. No polarity translations are done.
Routine Description:
Retrieves Volume attributes. No polarity translations are done.
Arguments:
This - Calling context
Attributes - output buffer which contains attributes
Arguments:
This - Calling context
Attributes - output buffer which contains attributes
Returns:
EFI_SUCCESS - Successfully returns
Returns:
EFI_SUCCESS - Successfully returns
--*/
{
@ -628,7 +635,8 @@ Returns:
FvbDevice = FVB_DEVICE_FROM_THIS (This);
return FvbGetVolumeAttributes (FvbDevice->Instance, Attributes, mFvbModuleGlobal, EfiGoneVirtual ());
return FvbGetVolumeAttributes (FvbDevice->Instance, Attributes,
mFvbModuleGlobal, EfiGoneVirtual ());
}
EFI_STATUS
@ -639,15 +647,15 @@ FvbProtocolSetAttributes (
)
/*++
Routine Description:
Sets Volume attributes. No polarity translations are done.
Routine Description:
Sets Volume attributes. No polarity translations are done.
Arguments:
This - Calling context
Attributes - output buffer which contains attributes
Arguments:
This - Calling context
Attributes - output buffer which contains attributes
Returns:
EFI_SUCCESS - Successfully returns
Returns:
EFI_SUCCESS - Successfully returns
--*/
{
@ -655,7 +663,8 @@ Returns:
FvbDevice = FVB_DEVICE_FROM_THIS (This);
return FvbSetVolumeAttributes (FvbDevice->Instance, Attributes, mFvbModuleGlobal, EfiGoneVirtual ());
return FvbSetVolumeAttributes (FvbDevice->Instance, Attributes,
mFvbModuleGlobal, EfiGoneVirtual ());
}
EFI_STATUS
@ -666,26 +675,27 @@ FvbProtocolEraseBlocks (
)
/*++
Routine Description:
Routine Description:
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.
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.
Arguments:
This - Calling context
... - Starting LBA followed by Number of Lba to erase.
a -1 to terminate the list.
Arguments:
This - Calling context
... - Starting LBA followed by Number of Lba to erase.
a -1 to terminate the list.
Returns:
EFI_SUCCESS - The erase request was successfully completed
EFI_ACCESS_DENIED - The firmware volume is in the WriteDisabled state
EFI_DEVICE_ERROR - The block device is not functioning correctly and
could not be written. Firmware device may have been
partially erased
Returns:
EFI_SUCCESS - The erase request was successfully completed
EFI_ACCESS_DENIED - The firmware volume is in the WriteDisabled state
EFI_DEVICE_ERROR - The block device is not functioning correctly and
could not be written. Firmware device may have been
partially erased
--*/
{
@ -699,7 +709,8 @@ Returns:
FvbDevice = FVB_DEVICE_FROM_THIS (This);
Status = GetFvbInstance (FvbDevice->Instance, mFvbModuleGlobal, &FwhInstance, EfiGoneVirtual ());
Status = GetFvbInstance (FvbDevice->Instance, mFvbModuleGlobal,
&FwhInstance, EfiGoneVirtual ());
ASSERT_EFI_ERROR (Status);
NumOfBlocks = FwhInstance->NumOfBlocks;
@ -763,36 +774,38 @@ FvbProtocolWrite (
)
/*++
Routine Description:
Routine Description:
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.
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.
Arguments:
This - Calling context
Lba - Block in which to begin write
Offset - Offset in the block at which to begin write
NumBytes - On input, indicates the requested write size. On
output, indicates the actual number of bytes written
Buffer - Buffer containing source data for the write.
Arguments:
This - Calling context
Lba - Block in which to begin write
Offset - Offset in the block at which to begin write
NumBytes - On input, indicates the requested write size. On
output, indicates the actual number of bytes
written
Buffer - Buffer containing source data for the write.
Returns:
EFI_SUCCESS - The firmware volume was written successfully
EFI_BAD_BUFFER_SIZE - Write attempted across a LBA boundary. On output,
NumBytes contains the total number of bytes
actually written
EFI_ACCESS_DENIED - The firmware volume is in the WriteDisabled state
EFI_DEVICE_ERROR - The block device is not functioning correctly and
could not be written
EFI_INVALID_PARAMETER - NumBytes or Buffer are NULL
Returns:
EFI_SUCCESS - The firmware volume was written successfully
EFI_BAD_BUFFER_SIZE - Write attempted across a LBA boundary. On output,
NumBytes contains the total number of bytes
actually written
EFI_ACCESS_DENIED - The firmware volume is in the WriteDisabled state
EFI_DEVICE_ERROR - The block device is not functioning correctly and
could not be written
EFI_INVALID_PARAMETER - NumBytes or Buffer are NULL
--*/
{
return QemuFlashWrite ((EFI_LBA)Lba, (UINTN)Offset, NumBytes, (UINT8 *)Buffer);
return QemuFlashWrite ((EFI_LBA)Lba, (UINTN)Offset, NumBytes,
(UINT8 *)Buffer);
}
EFI_STATUS
@ -806,37 +819,38 @@ FvbProtocolRead (
)
/*++
Routine Description:
Routine Description:
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.
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.
Arguments:
This - Calling context
Lba - Block in which to begin Read
Offset - Offset in the block at which to begin Read
NumBytes - On input, indicates the requested write size. On
output, indicates the actual number of bytes Read
Buffer - Buffer containing source data for the Read.
Arguments:
This - Calling context
Lba - Block in which to begin Read
Offset - Offset in the block at which to begin Read
NumBytes - On input, indicates the requested write size. On
output, indicates the actual number of bytes Read
Buffer - Buffer containing source data for the Read.
Returns:
EFI_SUCCESS - The firmware volume was read successfully and
contents are in Buffer
EFI_BAD_BUFFER_SIZE - Read attempted across a LBA boundary. On output,
NumBytes contains the total number of bytes returned
in Buffer
EFI_ACCESS_DENIED - The firmware volume is in the ReadDisabled state
EFI_DEVICE_ERROR - The block device is not functioning correctly and
could not be read
EFI_INVALID_PARAMETER - NumBytes or Buffer are NULL
Returns:
EFI_SUCCESS - The firmware volume was read successfully and
contents are in Buffer
EFI_BAD_BUFFER_SIZE - Read attempted across a LBA boundary. On output,
NumBytes contains the total number of bytes
returned in Buffer
EFI_ACCESS_DENIED - The firmware volume is in the ReadDisabled state
EFI_DEVICE_ERROR - The block device is not functioning correctly and
could not be read
EFI_INVALID_PARAMETER - NumBytes or Buffer are NULL
--*/
{
return QemuFlashRead ((EFI_LBA)Lba, (UINTN)Offset, NumBytes, (UINT8 *)Buffer);
return QemuFlashRead ((EFI_LBA)Lba, (UINTN)Offset, NumBytes,
(UINT8 *)Buffer);
}
EFI_STATUS
@ -845,15 +859,16 @@ ValidateFvHeader (
)
/*++
Routine Description:
Check the integrity of firmware volume header
Routine Description:
Check the integrity of firmware volume header
Arguments:
FwVolHeader - A pointer to a firmware volume header
Arguments:
FwVolHeader - A pointer to a firmware volume header
Returns:
EFI_SUCCESS - The firmware volume is consistent
EFI_NOT_FOUND - The firmware volume has corrupted. So it is not an FV
Returns:
EFI_SUCCESS - The firmware volume is consistent
EFI_NOT_FOUND - The firmware volume has corrupted. So it is not an
FV
--*/
{
@ -876,7 +891,8 @@ Returns:
// Verify the header checksum
//
Checksum = CalculateSum16 ((UINT16 *) FwVolHeader, FwVolHeader->HeaderLength);
Checksum = CalculateSum16 ((UINT16 *) FwVolHeader,
FwVolHeader->HeaderLength);
if (Checksum != 0) {
UINT16 Expected;
@ -963,7 +979,8 @@ InitializeVariableFvHeader (
UINTN Offset;
UINTN Start;
DEBUG ((EFI_D_INFO, "Variable FV header is not valid. It will be reinitialized.\n"));
DEBUG ((EFI_D_INFO,
"Variable FV header is not valid. It will be reinitialized.\n"));
//
// Get FvbInfo to provide in FwhInstance.
@ -1007,12 +1024,12 @@ FvbInitialize (
)
/*++
Routine Description:
This function does common initialization for FVB services
Routine Description:
This function does common initialization for FVB services
Arguments:
Arguments:
Returns:
Returns:
--*/
{
@ -1034,7 +1051,8 @@ Returns:
//
// Return an error so image will be unloaded
//
DEBUG ((EFI_D_INFO, "QEMU flash was not detected. Writable FVB is not being installed.\n"));
DEBUG ((EFI_D_INFO,
"QEMU flash was not detected. Writable FVB is not being installed.\n"));
return EFI_WRITE_PROTECTED;
}
@ -1050,7 +1068,8 @@ Returns:
Status = InitializeVariableFvHeader ();
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_INFO, "QEMU Flash: Unable to initialize variable FV header\n"));
DEBUG ((EFI_D_INFO,
"QEMU Flash: Unable to initialize variable FV header\n"));
return EFI_WRITE_PROTECTED;
}
@ -1067,14 +1086,18 @@ Returns:
}
}
BufferSize = (sizeof (EFI_FW_VOL_INSTANCE) + FwVolHeader->HeaderLength - sizeof (EFI_FIRMWARE_VOLUME_HEADER));
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);
mFvbModuleGlobal->FvInstance[FVB_PHYSICAL] = AllocateRuntimePool (
BufferSize);
ASSERT (mFvbModuleGlobal->FvInstance[FVB_PHYSICAL] != NULL);
//
@ -1093,13 +1116,16 @@ Returns:
FwhInstance->FvBase[FVB_PHYSICAL] = (UINTN) BaseAddress;
FwhInstance->FvBase[FVB_VIRTUAL] = (UINTN) BaseAddress;
CopyMem ((UINTN *) &(FwhInstance->VolumeHeader), (UINTN *) FwVolHeader, FwVolHeader->HeaderLength);
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++) {
for (PtrBlockMapEntry = FwVolHeader->BlockMap;
PtrBlockMapEntry->NumBlocks != 0;
PtrBlockMapEntry++) {
//
// Get the maximum size of a block.
//
@ -1130,24 +1156,35 @@ Returns:
// Set up the devicepath
//
if (FwVolHeader->ExtHeaderOffset == 0) {
FV_MEMMAP_DEVICE_PATH *FvMemmapDevicePath;
//
// FV does not contains extension header, then produce MEMMAP_DEVICE_PATH
//
FvbDevice->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) AllocateCopyPool (sizeof (FV_MEMMAP_DEVICE_PATH), &mFvMemmapDevicePathTemplate);
((FV_MEMMAP_DEVICE_PATH *) FvbDevice->DevicePath)->MemMapDevPath.StartingAddress = BaseAddress;
((FV_MEMMAP_DEVICE_PATH *) FvbDevice->DevicePath)->MemMapDevPath.EndingAddress = BaseAddress + FwVolHeader->FvLength - 1;
FvMemmapDevicePath = AllocateCopyPool (sizeof (FV_MEMMAP_DEVICE_PATH),
&mFvMemmapDevicePathTemplate);
FvMemmapDevicePath->MemMapDevPath.StartingAddress = BaseAddress;
FvMemmapDevicePath->MemMapDevPath.EndingAddress =
BaseAddress + FwVolHeader->FvLength - 1;
FvbDevice->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *)FvMemmapDevicePath;
} else {
FvbDevice->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) AllocateCopyPool (sizeof (FV_PIWG_DEVICE_PATH), &mFvPIWGDevicePathTemplate);
FV_PIWG_DEVICE_PATH *FvPiwgDevicePath;
FvPiwgDevicePath = AllocateCopyPool (sizeof (FV_PIWG_DEVICE_PATH),
&mFvPIWGDevicePathTemplate);
CopyGuid (
&((FV_PIWG_DEVICE_PATH *)FvbDevice->DevicePath)->FvDevPath.FvName,
&FvPiwgDevicePath->FvDevPath.FvName,
(GUID *)(UINTN)(BaseAddress + FwVolHeader->ExtHeaderOffset)
);
FvbDevice->DevicePath = (EFI_DEVICE_PATH_PROTOCOL *)FvPiwgDevicePath;
}
//
// Find a handle with a matching device path that has supports FW Block protocol
// Find a handle with a matching device path that has supports FW Block
// protocol
//
Status = gBS->LocateDevicePath (&gEfiFirmwareVolumeBlockProtocolGuid, &FvbDevice->DevicePath, &FwbHandle);
Status = gBS->LocateDevicePath (&gEfiFirmwareVolumeBlockProtocolGuid,
&FvbDevice->DevicePath, &FwbHandle);
if (EFI_ERROR (Status)) {
//
// LocateDevicePath fails so install a new interface and device path

31
OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FwBlockService.h
View File

@ -1,21 +1,22 @@
/**@file
Copyright (c) 2006, 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
Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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
Module Name:
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
FwBlockService.h
Module Name:
Abstract:
FwBlockService.h
Firmware volume block driver for Intel Firmware Hub (FWH) device
Abstract:
Firmware volume block driver for Intel Firmware Hub (FWH) device
**/
@ -44,8 +45,12 @@ typedef struct {
//
// Fvb Protocol instance data
//
#define FVB_DEVICE_FROM_THIS(a) CR (a, EFI_FW_VOL_BLOCK_DEVICE, FwVolBlockInstance, FVB_DEVICE_SIGNATURE)
#define FVB_EXTEND_DEVICE_FROM_THIS(a) CR (a, EFI_FW_VOL_BLOCK_DEVICE, FvbExtension, FVB_DEVICE_SIGNATURE)
#define FVB_DEVICE_FROM_THIS(a) CR (a, EFI_FW_VOL_BLOCK_DEVICE, \
FwVolBlockInstance, FVB_DEVICE_SIGNATURE)
#define FVB_EXTEND_DEVICE_FROM_THIS(a) CR (a, EFI_FW_VOL_BLOCK_DEVICE, \
FvbExtension, FVB_DEVICE_SIGNATURE)
#define FVB_DEVICE_SIGNATURE SIGNATURE_32 ('F', 'V', 'B', 'N')
typedef struct {

7
OvmfPkg/QemuFlashFvbServicesRuntimeDxe/QemuFlash.c
View File

@ -2,9 +2,10 @@
OVMF support for QEMU system firmware flash device
Copyright (c) 2009 - 2013, 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
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,

7
OvmfPkg/QemuFlashFvbServicesRuntimeDxe/QemuFlash.h
View File

@ -2,9 +2,10 @@
OVMF support for QEMU system firmware flash device
Copyright (c) 2009 - 2013, 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
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,