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OVMF: Add BlockMmioToBlockIoDxe driver 

This driver will wrapper BlockMmio protocol instances to produce the
standard UEFI BlockIo protocol.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10296 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jljusten 2010-03-21 00:34:15 +00:00
parent b0f5144676
commit efd82c5794
9 changed files with 1094 additions and 2 deletions
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526
OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.c Normal file
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/** @file
The driver wrappers BlockMmio protocol instances to produce
Block I/O Protocol instances.
Copyright (c) 2007 - 2010, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "BlockIo.h"
EFI_DRIVER_BINDING_PROTOCOL gBlockIoDriverBinding = {
BlockIoDriverBindingSupported,
BlockIoDriverBindingStart,
BlockIoDriverBindingStop,
0x11,
NULL,
NULL
};
/**
Reset the block device.
This function implements EFI_BLOCK_IO_PROTOCOL.Reset().
It resets the block device hardware.
ExtendedVerification is ignored in this implementation.
@param This Indicates a pointer to the calling context.
@param ExtendedVerification Indicates that the driver may perform a more exhaustive
verification operation of the device during reset.
@retval EFI_SUCCESS The block device was reset.
@retval EFI_DEVICE_ERROR The block device is not functioning correctly and could not be reset.
**/
EFI_STATUS
EFIAPI
BlockIoReset (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
{
return EFI_SUCCESS;
}
/**
Reads the requested number of blocks from the device.
This function implements EFI_BLOCK_IO_PROTOCOL.ReadBlocks().
It reads the requested number of blocks from the device.
All the blocks are read, or an error is returned.
@param This Indicates a pointer to the calling context.
@param ReadData If TRUE then read data. If FALSE then write data.
@param MediaId The media ID that the read request is for.
@param Lba The starting logical block address to read from on the device.
@param BufferSize The size of the Buffer in bytes.
This must be a multiple of the intrinsic block size of the device.
@param Buffer A pointer to the destination buffer for the data. The caller is
responsible for either having implicit or explicit ownership of the buffer.
@retval EFI_SUCCESS The data was read correctly from the device.
@retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the read operation.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic block size of the device.
@retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,
or the buffer is not on proper alignment.
**/
EFI_STATUS
EFIAPI
ReadOrWriteBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN BOOLEAN ReadData,
IN UINT32 MediaId,
IN EFI_LBA Lba,
IN UINTN BufferSize,
OUT VOID *Buffer
)
{
EFI_STATUS Status;
BLOCK_MMIO_TO_BLOCK_IO_DEVICE *Private;
UINTN TotalBlock;
EFI_BLOCK_IO_MEDIA *Media;
UINT64 Address;
UINTN Count;
EFI_CPU_IO_PROTOCOL_IO_MEM CpuAccessFunction;
//
// First, validate the parameters
//
if ((Buffer == NULL) || (BufferSize == 0)) {
return EFI_INVALID_PARAMETER;
}
//
// Get private data structure
//
Private = PRIVATE_FROM_BLOCK_IO (This);
Media = Private->BlockMmio->Media;
//
// BufferSize must be a multiple of the intrinsic block size of the device.
//
if ((BufferSize % Media->BlockSize) != 0) {
return EFI_BAD_BUFFER_SIZE;
}
TotalBlock = BufferSize / Media->BlockSize;
//
// Make sure the range to read is valid.
//
if (Lba + TotalBlock - 1 > Media->LastBlock) {
return EFI_INVALID_PARAMETER;
}
if (!(Media->MediaPresent)) {
return EFI_NO_MEDIA;
}
if (MediaId != Media->MediaId) {
return EFI_MEDIA_CHANGED;
}
Address = Private->BlockMmio->BaseAddress;
Address += Media->BlockSize * Lba;
Count = BufferSize / 8;
if (ReadData) {
CpuAccessFunction = Private->CpuIo->Mem.Read;
} else {
CpuAccessFunction = Private->CpuIo->Mem.Write;
}
Status = (CpuAccessFunction) (
Private->CpuIo,
EfiCpuIoWidthUint64,
Address,
Count,
Buffer
);
return Status;
}
/**
Reads the requested number of blocks from the device.
This function implements EFI_BLOCK_IO_PROTOCOL.ReadBlocks().
It reads the requested number of blocks from the device.
All the blocks are read, or an error is returned.
@param This Indicates a pointer to the calling context.
@param MediaId The media ID that the read request is for.
@param Lba The starting logical block address to read from on the device.
@param BufferSize The size of the Buffer in bytes.
This must be a multiple of the intrinsic block size of the device.
@param Buffer A pointer to the destination buffer for the data. The caller is
responsible for either having implicit or explicit ownership of the buffer.
@retval EFI_SUCCESS The data was read correctly from the device.
@retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the read operation.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic block size of the device.
@retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,
or the buffer is not on proper alignment.
**/
EFI_STATUS
EFIAPI
BlockIoReadBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN UINT32 MediaId,
IN EFI_LBA Lba,
IN UINTN BufferSize,
OUT VOID *Buffer
)
{
DEBUG ((EFI_D_INFO, "BlockIo (MMIO) ReadBlocks: lba=0x%lx, size=0x%x\n", Lba, BufferSize));
return ReadOrWriteBlocks (
This,
TRUE,
MediaId,
Lba,
BufferSize,
Buffer
);
}
/**
Writes a specified number of blocks to the device.
This function implements EFI_BLOCK_IO_PROTOCOL.WriteBlocks().
It writes a specified number of blocks to the device.
All blocks are written, or an error is returned.
@param This Indicates a pointer to the calling context.
@param MediaId The media ID that the write request is for.
@param Lba The starting logical block address to be written.
@param BufferSize The size of the Buffer in bytes.
This must be a multiple of the intrinsic block size of the device.
@param Buffer Pointer to the source buffer for the data.
@retval EFI_SUCCESS The data were written correctly to the device.
@retval EFI_WRITE_PROTECTED The device cannot be written to.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
@retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the write operation.
@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic
block size of the device.
@retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,
or the buffer is not on proper alignment.
**/
EFI_STATUS
EFIAPI
BlockIoWriteBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN UINT32 MediaId,
IN EFI_LBA Lba,
IN UINTN BufferSize,
IN VOID *Buffer
)
{
DEBUG ((EFI_D_INFO, "BlockIo (MMIO) WriteBlocks: lba=0x%lx, size=0x%x\n", Lba, BufferSize));
return ReadOrWriteBlocks (
This,
FALSE,
MediaId,
Lba,
BufferSize,
Buffer
);
}
/**
Flushes all modified data to a physical block device.
@param This Indicates a pointer to the calling context.
@retval EFI_SUCCESS All outstanding data were written correctly to the device.
@retval EFI_DEVICE_ERROR The device reported an error while attempting to write data.
@retval EFI_NO_MEDIA There is no media in the device.
**/
EFI_STATUS
EFIAPI
BlockIoFlushBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This
)
{
return EFI_SUCCESS;
}
/**
Initialize data for device that does not support multiple LUNSs.
@param This The Driver Binding Protocol instance.
@param Controller The device to initialize.
@param BlockMmio Pointer to USB_MASS_TRANSPORT.
@param Context Parameter for USB_MASS_DEVICE.Context.
@retval EFI_SUCCESS Initialization succeeds.
@retval Other Initialization fails.
**/
EFI_STATUS
BlockIoInit (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller
)
{
EFI_STATUS Status;
BLOCK_MMIO_TO_BLOCK_IO_DEVICE *Private;
BLOCK_MMIO_PROTOCOL *BlockMmio;
Private = (BLOCK_MMIO_TO_BLOCK_IO_DEVICE*) AllocateZeroPool (sizeof (Private));
ASSERT (Private != NULL);
Status = gBS->LocateProtocol (
&gEfiCpuIo2ProtocolGuid,
NULL,
(VOID **) &(Private->CpuIo)
);
ASSERT_EFI_ERROR (Status);
Status = gBS->OpenProtocol (
Controller,
&gBlockMmioProtocolGuid,
(VOID **) &BlockMmio,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "BlockIoInit: OpenBlockMmioProtocol By Driver (%r)\n", Status));
goto ON_ERROR;
}
DEBUG ((EFI_D_INFO, "BlockMmio: 0x%x\n", BlockMmio));
DEBUG ((EFI_D_INFO, "BlockMmio->Media->LastBlock: 0x%lx\n", BlockMmio->Media->LastBlock));
Private->Signature = BLOCK_MMIO_TO_BLOCK_IO_SIGNATURE;
Private->Controller = Controller;
Private->BlockMmio = BlockMmio;
Private->BlockIo.Media = BlockMmio->Media;
Private->BlockIo.Reset = BlockIoReset;
Private->BlockIo.ReadBlocks = BlockIoReadBlocks;
Private->BlockIo.WriteBlocks = BlockIoWriteBlocks;
Private->BlockIo.FlushBlocks = BlockIoFlushBlocks;
DEBUG ((EFI_D_INFO, "Private->BlockIo.Media->LastBlock: 0x%lx\n", Private->BlockIo.Media->LastBlock));
Status = gBS->InstallProtocolInterface (
&Controller,
&gEfiBlockIoProtocolGuid,
EFI_NATIVE_INTERFACE,
&Private->BlockIo
);
if (EFI_ERROR (Status)) {
goto ON_ERROR;
}
return EFI_SUCCESS;
ON_ERROR:
if (Private != NULL) {
FreePool (Private);
}
if (BlockMmio != NULL) {
gBS->CloseProtocol (
Controller,
&gBlockMmioProtocolGuid,
This->DriverBindingHandle,
Controller
);
}
return Status;
}
/**
Check whether the controller is a supported USB mass storage.
@param This The USB mass storage driver binding protocol.
@param Controller The controller handle to check.
@param RemainingDevicePath The remaining device path.
@retval EFI_SUCCESS The driver supports this controller.
@retval other This device isn't supported.
**/
EFI_STATUS
EFIAPI
BlockIoDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_STATUS Status;
BLOCK_MMIO_PROTOCOL *BlockMmio;
Status = gBS->OpenProtocol (
Controller,
&gBlockMmioProtocolGuid,
(VOID **) &BlockMmio,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status)) {
return Status;
}
gBS->CloseProtocol (
Controller,
&gBlockMmioProtocolGuid,
This->DriverBindingHandle,
Controller
);
return Status;
}
/**
Starts the USB mass storage device with this driver.
This function consumes USB I/O Portocol, intializes USB mass storage device,
installs Block I/O Protocol, and submits Asynchronous Interrupt
Transfer to manage the USB mass storage device.
@param This The USB mass storage driver binding protocol.
@param Controller The USB mass storage device to start on
@param RemainingDevicePath The remaining device path.
@retval EFI_SUCCESS This driver supports this device.
@retval EFI_UNSUPPORTED This driver does not support this device.
@retval EFI_DEVICE_ERROR This driver cannot be started due to device Error.
@retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.
@retval EFI_ALREADY_STARTED This driver has been started.
**/
EFI_STATUS
EFIAPI
BlockIoDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_STATUS Status;
Status = BlockIoInit (This, Controller);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "BlockIoDriverBindingStart: BlockIoInit (%r)\n", Status));
return Status;
}
DEBUG ((EFI_D_INIT, "BlockIoDriverBindingStart: Successfully started\n"));
return Status;
}
/**
Stop controlling the device.
@param This The USB mass storage driver binding
@param Controller The device controller controlled by the driver.
@param NumberOfChildren The number of children of this device
@param ChildHandleBuffer The buffer of children handle.
@retval EFI_SUCCESS The driver stopped from controlling the device.
@retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
@retval EFI_UNSUPPORTED Block I/O Protocol is not installed on Controller.
@retval Others Failed to stop the driver
**/
EFI_STATUS
EFIAPI
BlockIoDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
{
EFI_STATUS Status;
BLOCK_MMIO_TO_BLOCK_IO_DEVICE *Private;
Private = PRIVATE_FROM_BLOCK_IO (This);
//
// Uninstall Block I/O protocol from the device handle,
// then call the transport protocol to stop itself.
//
Status = gBS->UninstallProtocolInterface (
Controller,
&gEfiBlockIoProtocolGuid,
&Private->BlockIo
);
if (EFI_ERROR (Status)) {
return Status;
}
gBS->CloseProtocol (
Controller,
&gBlockMmioProtocolGuid,
This->DriverBindingHandle,
Controller
);
FreePool (Private);
DEBUG ((EFI_D_INFO, "Successfully stopped BlockIo on BlockMmio\n"));
return EFI_SUCCESS;
}
/**
Entrypoint of Block MMIO to Block IO Driver.
This function is the entrypoint of USB Mass Storage Driver. It installs Driver Binding
Protocol together with Component Name Protocols.
@param ImageHandle The firmware allocated handle for the EFI image.
@param SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The entry point is executed successfully.
**/
EFI_STATUS
EFIAPI
BlockMmioToBlockIoEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
//
// Install driver binding protocol
//
Status = EfiLibInstallDriverBindingComponentName2 (
ImageHandle,
SystemTable,
&gBlockIoDriverBinding,
ImageHandle,
&gBlockMmioToBlockIoComponentName,
&gBlockMmioToBlockIoComponentName2
);
ASSERT_EFI_ERROR (Status);
return EFI_SUCCESS;
}

346
OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.h Normal file
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/** @file
Definitions of functions for Driver Binding Protocol and Block I/O Protocol,
and other internal definitions.
Copyright (c) 2007 - 2010, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _EFI_BLOCK_MMIO_TO_BLOCK_IO_H_
#define _EFI_BLOCK_MMIO_TO_BLOCK_IO_H_
#include <Uefi.h>
#include <Protocol/BlockMmio.h>
#include <Protocol/ComponentName.h>
#include <Protocol/ComponentName2.h>
#include <Protocol/CpuIo2.h>
#include <Protocol/DevicePath.h>
#include <Protocol/DriverBinding.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
#define BLOCK_MMIO_TO_BLOCK_IO_SIGNATURE SIGNATURE_32 ('B', 'M', 'I', 'O')
#define PRIVATE_FROM_BLOCK_IO(a) \
CR (a, BLOCK_MMIO_TO_BLOCK_IO_DEVICE, BlockIo, BLOCK_MMIO_TO_BLOCK_IO_SIGNATURE)
extern EFI_COMPONENT_NAME_PROTOCOL gBlockMmioToBlockIoComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gBlockMmioToBlockIoComponentName2;
typedef struct {
UINT32 Signature;
EFI_HANDLE Controller;
BLOCK_MMIO_PROTOCOL *BlockMmio;
EFI_CPU_IO2_PROTOCOL *CpuIo;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
EFI_BLOCK_IO_PROTOCOL BlockIo;
} BLOCK_MMIO_TO_BLOCK_IO_DEVICE;
//
// Functions for Driver Binding Protocol
//
/**
Check whether the controller is a supported.
@param This The driver binding protocol.
@param Controller The controller handle to check.
@param RemainingDevicePath The remaining device path.
@retval EFI_SUCCESS The driver supports this controller.
@retval other This device isn't supported.
**/
EFI_STATUS
EFIAPI
BlockIoDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
Starts the BlockIo device with this driver.
This function consumes Block MMIO Portocol and
installs Block I/O Protocol.
@param This The driver binding protocol.
@param Controller The Block MMIO device to start on
@param RemainingDevicePath The remaining device path.
@retval EFI_SUCCESS This driver supports this device.
@retval EFI_UNSUPPORTED This driver does not support this device.
@retval EFI_DEVICE_ERROR This driver cannot be started due to device Error.
@retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.
@retval EFI_ALREADY_STARTED This driver has been started.
**/
EFI_STATUS
EFIAPI
BlockIoDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
Stop controlling the device.
@param This The driver binding
@param Controller The device controller controlled by the driver.
@param NumberOfChildren The number of children of this device
@param ChildHandleBuffer The buffer of children handle.
@retval EFI_SUCCESS The driver stopped from controlling the device.
@retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
@retval EFI_UNSUPPORTED Block I/O Protocol is not installed on Controller.
@retval Others Failed to stop the driver
**/
EFI_STATUS
EFIAPI
BlockIoDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
);
//
// Functions for Block I/O Protocol
//
/**
Reset the block device.
This function implements EFI_BLOCK_IO_PROTOCOL.Reset().
It resets the block device hardware.
ExtendedVerification is ignored in this implementation.
@param This Indicates a pointer to the calling context.
@param ExtendedVerification Indicates that the driver may perform a more exhaustive
verification operation of the device during reset.
@retval EFI_SUCCESS The block device was reset.
@retval EFI_DEVICE_ERROR The block device is not functioning correctly and could not be reset.
**/
EFI_STATUS
EFIAPI
BlockIoReset (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
);
/**
Reads the requested number of blocks from the device.
This function implements EFI_BLOCK_IO_PROTOCOL.ReadBlocks().
It reads the requested number of blocks from the device.
All the blocks are read, or an error is returned.
@param This Indicates a pointer to the calling context.
@param MediaId The media ID that the read request is for.
@param Lba The starting logical block address to read from on the device.
@param BufferSize The size of the Buffer in bytes.
This must be a multiple of the intrinsic block size of the device.
@param Buffer A pointer to the destination buffer for the data. The caller is
responsible for either having implicit or explicit ownership of the buffer.
@retval EFI_SUCCESS The data was read correctly from the device.
@retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the read operation.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic block size of the device.
@retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,
or the buffer is not on proper alignment.
**/
EFI_STATUS
EFIAPI
BlockIoReadBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN UINT32 MediaId,
IN EFI_LBA Lba,
IN UINTN BufferSize,
OUT VOID *Buffer
);
/**
Writes a specified number of blocks to the device.
This function implements EFI_BLOCK_IO_PROTOCOL.WriteBlocks().
It writes a specified number of blocks to the device.
All blocks are written, or an error is returned.
@param This Indicates a pointer to the calling context.
@param MediaId The media ID that the write request is for.
@param Lba The starting logical block address to be written.
@param BufferSize The size of the Buffer in bytes.
This must be a multiple of the intrinsic block size of the device.
@param Buffer Pointer to the source buffer for the data.
@retval EFI_SUCCESS The data were written correctly to the device.
@retval EFI_WRITE_PROTECTED The device cannot be written to.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
@retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the write operation.
@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic
block size of the device.
@retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,
or the buffer is not on proper alignment.
**/
EFI_STATUS
EFIAPI
BlockIoWriteBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN UINT32 MediaId,
IN EFI_LBA Lba,
IN UINTN BufferSize,
IN VOID *Buffer
);
/**
Flushes all modified data to a physical block device.
@param This Indicates a pointer to the calling context.
@retval EFI_SUCCESS All outstanding data were written correctly to the device.
@retval EFI_DEVICE_ERROR The device reported an error while attempting to write data.
@retval EFI_NO_MEDIA There is no media in the device.
**/
EFI_STATUS
EFIAPI
BlockIoFlushBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This
);
//
// EFI Component Name Functions
//
/**
Retrieves a Unicode string that is the user readable name of the driver.
This function retrieves the user readable name of a driver in the form of a
Unicode string. If the driver specified by This has a user readable name in
the language specified by Language, then a pointer to the driver name is
returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
by This does not support the language specified by Language,
then EFI_UNSUPPORTED is returned.
@param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param Language A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified
in RFC 4646 or ISO 639-2 language code format.
@param DriverName A pointer to the Unicode string to return.
This Unicode string is the name of the
driver specified by This in the language
specified by Language.
@retval EFI_SUCCESS The Unicode string for the Driver specified by
This and the language specified by Language was
returned in DriverName.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER DriverName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
BlockMmioToBlockIoGetDriverName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN CHAR8 *Language,
OUT CHAR16 **DriverName
);
/**
Retrieves a Unicode string that is the user readable name of the controller
that is being managed by a driver.
This function retrieves the user readable name of the controller specified by
ControllerHandle and ChildHandle in the form of a Unicode string. If the
driver specified by This has a user readable name in the language specified by
Language, then a pointer to the controller name is returned in ControllerName,
and EFI_SUCCESS is returned. If the driver specified by This is not currently
managing the controller specified by ControllerHandle and ChildHandle,
then EFI_UNSUPPORTED is returned. If the driver specified by This does not
support the language specified by Language, then EFI_UNSUPPORTED is returned.
@param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param ControllerHandle The handle of a controller that the driver
specified by This is managing. This handle
specifies the controller whose name is to be
returned.
@param ChildHandle The handle of the child controller to retrieve
the name of. This is an optional parameter that
may be NULL. It will be NULL for device
drivers. It will also be NULL for a bus drivers
that wish to retrieve the name of the bus
controller. It will not be NULL for a bus
driver that wishes to retrieve the name of a
child controller.
@param Language A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified in
RFC 4646 or ISO 639-2 language code format.
@param ControllerName A pointer to the Unicode string to return.
This Unicode string is the name of the
controller specified by ControllerHandle and
ChildHandle in the language specified by
Language from the point of view of the driver
specified by This.
@retval EFI_SUCCESS The Unicode string for the user readable name in
the language specified by Language for the
driver specified by This was returned in
DriverName.
@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
EFI_HANDLE.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER ControllerName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This is not currently
managing the controller specified by
ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
BlockMmioToBlockIoGetControllerName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN CHAR8 *Language,
OUT CHAR16 **ControllerName
);
#endif

55
OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.inf Normal file
View File

@ -0,0 +1,55 @@
## @file
# The driver wrappers BlockMmio protocol instances to produce
# Block I/O Protocol instances.
#
# Copyright (c) 2006 - 2010, Intel Corporation.
#
# All rights reserved. This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
#
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#
##
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = BlockMmioToBlockIoDxe
FILE_GUID = 33cb97af-6c33-4c42-986b-07581fa366d4
MODULE_TYPE = UEFI_DRIVER
VERSION_STRING = 1.0
ENTRY_POINT = BlockMmioToBlockIoEntryPoint
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = IA32 X64 IPF EBC
#
[Sources]
BlockIo.c
ComponentName.c
[Packages]
MdePkg/MdePkg.dec
OvmfPkg/OvmfPkg.dec
[LibraryClasses]
BaseLib
BaseMemoryLib
DebugLib
DevicePathLib
MemoryAllocationLib
UefiBootServicesTableLib
UefiDriverEntryPoint
UefiLib
[Protocols]
gBlockMmioProtocolGuid ## TO_START
gEfiCpuIo2ProtocolGuid ## TO_START
gEfiDevicePathProtocolGuid ## TO_START
gEfiBlockIoProtocolGuid ## BY_START

162
OvmfPkg/BlockMmioToBlockIoDxe/ComponentName.c Normal file
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@ -0,0 +1,162 @@
/** @file
UEFI Component Name(2) protocol implementation for Block MMIO to Block IO driver.
Copyright (c) 2004 - 2007, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "BlockIo.h"
//
// EFI Component Name Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL gBlockMmioToBlockIoComponentName = {
BlockMmioToBlockIoGetDriverName,
BlockMmioToBlockIoGetControllerName,
"eng"
};
//
// EFI Component Name 2 Protocol
//
GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gBlockMmioToBlockIoComponentName2 = {
(EFI_COMPONENT_NAME2_GET_DRIVER_NAME) BlockMmioToBlockIoGetDriverName,
(EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) BlockMmioToBlockIoGetControllerName,
"en"
};
GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE
mBlockMmioToBlockIoDriverNameTable[] = {
{"eng;en", L"Block MMIO to Block IO Driver"},
{NULL, NULL}
};
/**
Retrieves a Unicode string that is the user readable name of the driver.
This function retrieves the user readable name of a driver in the form of a
Unicode string. If the driver specified by This has a user readable name in
the language specified by Language, then a pointer to the driver name is
returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
by This does not support the language specified by Language,
then EFI_UNSUPPORTED is returned.
@param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param Language A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified
in RFC 4646 or ISO 639-2 language code format.
@param DriverName A pointer to the Unicode string to return.
This Unicode string is the name of the
driver specified by This in the language
specified by Language.
@retval EFI_SUCCESS The Unicode string for the Driver specified by
This and the language specified by Language was
returned in DriverName.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER DriverName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
BlockMmioToBlockIoGetDriverName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN CHAR8 *Language,
OUT CHAR16 **DriverName
)
{
return LookupUnicodeString2 (
Language,
This->SupportedLanguages,
mBlockMmioToBlockIoDriverNameTable,
DriverName,
(BOOLEAN)(This == &gBlockMmioToBlockIoComponentName)
);
}
/**
Retrieves a Unicode string that is the user readable name of the controller
that is being managed by a driver.
This function retrieves the user readable name of the controller specified by
ControllerHandle and ChildHandle in the form of a Unicode string. If the
driver specified by This has a user readable name in the language specified by
Language, then a pointer to the controller name is returned in ControllerName,
and EFI_SUCCESS is returned. If the driver specified by This is not currently
managing the controller specified by ControllerHandle and ChildHandle,
then EFI_UNSUPPORTED is returned. If the driver specified by This does not
support the language specified by Language, then EFI_UNSUPPORTED is returned.
@param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param ControllerHandle The handle of a controller that the driver
specified by This is managing. This handle
specifies the controller whose name is to be
returned.
@param ChildHandle The handle of the child controller to retrieve
the name of. This is an optional parameter that
may be NULL. It will be NULL for device
drivers. It will also be NULL for a bus drivers
that wish to retrieve the name of the bus
controller. It will not be NULL for a bus
driver that wishes to retrieve the name of a
child controller.
@param Language A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified in
RFC 4646 or ISO 639-2 language code format.
@param ControllerName A pointer to the Unicode string to return.
This Unicode string is the name of the
controller specified by ControllerHandle and
ChildHandle in the language specified by
Language from the point of view of the driver
specified by This.
@retval EFI_SUCCESS The Unicode string for the user readable name in
the language specified by Language for the
driver specified by This was returned in
DriverName.
@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
EFI_HANDLE.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER ControllerName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This is not currently
managing the controller specified by
ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
BlockMmioToBlockIoGetControllerName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN CHAR8 *Language,
OUT CHAR16 **ControllerName
)
{
return EFI_UNSUPPORTED;
}

1
OvmfPkg/OvmfPkg.fdf
View File

@ -164,6 +164,7 @@ INF PcAtChipsetPkg/KbcResetDxe/Reset.inf
INF MdeModulePkg/Universal/Metronome/Metronome.inf
INF PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcatRealTimeClockRuntimeDxe.inf
INF OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.inf
INF OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.inf
INF MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.inf
INF MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf

1
OvmfPkg/OvmfPkgIa32.dsc
View File

@ -291,6 +291,7 @@
TimerLib|OvmfPkg/Library/AcpiTimerLib/AcpiTimerLib.inf
}
OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.inf
OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.inf {
<LibraryClasses>
PlatformFvbLib|OvmfPkg/Library/EmuVariableFvbLib/EmuVariableFvbLib.inf

2
OvmfPkg/OvmfPkgIa32X64.dsc
View File

@ -178,7 +178,6 @@
[PcdsFeatureFlag]
gEfiMdeModulePkgTokenSpaceGuid.PcdStatusCodeUseSerial|FALSE
gEfiMdeModulePkgTokenSpaceGuid.PcdStatusCodeUseMemory|TRUE
gEfiMdeModulePkgTokenSpaceGuid.PcdDxeIplSupportUefiDecompress|FALSE
gEfiMdeModulePkgTokenSpaceGuid.PcdDxeIplSwitchToLongMode|TRUE
@ -294,6 +293,7 @@
TimerLib|OvmfPkg/Library/AcpiTimerLib/AcpiTimerLib.inf
}
OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.inf
OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.inf {
<LibraryClasses>
PlatformFvbLib|OvmfPkg/Library/EmuVariableFvbLib/EmuVariableFvbLib.inf

1
OvmfPkg/OvmfPkgIa32X64.fdf
View File

@ -166,6 +166,7 @@ INF PcAtChipsetPkg/KbcResetDxe/Reset.inf
INF MdeModulePkg/Universal/Metronome/Metronome.inf
INF PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcatRealTimeClockRuntimeDxe.inf
INF OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.inf
INF OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.inf
INF MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.inf
INF MdeModulePkg/Universal/Variable/RuntimeDxe/VariableRuntimeDxe.inf

2
OvmfPkg/OvmfPkgX64.dsc
View File

@ -178,7 +178,6 @@
[PcdsFeatureFlag]
gEfiMdeModulePkgTokenSpaceGuid.PcdStatusCodeUseSerial|FALSE
gEfiMdeModulePkgTokenSpaceGuid.PcdStatusCodeUseMemory|TRUE
gEfiMdeModulePkgTokenSpaceGuid.PcdDxeIplSupportUefiDecompress|FALSE
gEfiMdeModulePkgTokenSpaceGuid.PcdDxeIplSwitchToLongMode|FALSE
@ -293,6 +292,7 @@
TimerLib|OvmfPkg/Library/AcpiTimerLib/AcpiTimerLib.inf
}
OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.inf
OvmfPkg/EmuVariableFvbRuntimeDxe/Fvb.inf {
<LibraryClasses>
PlatformFvbLib|OvmfPkg/Library/EmuVariableFvbLib/EmuVariableFvbLib.inf