diff options
| author | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-03-21 00:34:15 +0000 |
|---|---|---|
| committer | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-03-21 00:34:15 +0000 |
| commit | efd82c5794ecbb77315a4358e1591b7480c444bc (patch) | |
| tree | 31285f14fcb33575204ebdf1690172cfd52ac086 | |
| parent | b0f5144676fa47f89ccff6db63173d5d456a4f0e (diff) | |
| download | edk2-platforms-efd82c5794ecbb77315a4358e1591b7480c444bc.tar.xz | |
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
| -rw-r--r-- | OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.c | 526 | ||||
| -rw-r--r-- | OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.h | 346 | ||||
| -rw-r--r-- | OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.inf | 55 | ||||
| -rw-r--r-- | OvmfPkg/BlockMmioToBlockIoDxe/ComponentName.c | 162 | ||||
| -rw-r--r-- | OvmfPkg/OvmfPkg.fdf | 1 | ||||
| -rw-r--r-- | OvmfPkg/OvmfPkgIa32.dsc | 1 | ||||
| -rw-r--r-- | OvmfPkg/OvmfPkgIa32X64.dsc | 2 | ||||
| -rw-r--r-- | OvmfPkg/OvmfPkgIa32X64.fdf | 1 | ||||
| -rw-r--r-- | OvmfPkg/OvmfPkgX64.dsc | 2 |
9 files changed, 1094 insertions, 2 deletions
diff --git a/OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.c b/OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.c new file mode 100644 index 0000000000..bdd1402cc1 --- /dev/null +++ b/OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.c @@ -0,0 +1,526 @@ +/** @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;
+}
diff --git a/OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.h b/OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.h new file mode 100644 index 0000000000..18e5bcff08 --- /dev/null +++ b/OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.h @@ -0,0 +1,346 @@ +/** @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
diff --git a/OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.inf b/OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.inf new file mode 100644 index 0000000000..c8aea2858f --- /dev/null +++ b/OvmfPkg/BlockMmioToBlockIoDxe/BlockIo.inf @@ -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
+
diff --git a/OvmfPkg/BlockMmioToBlockIoDxe/ComponentName.c b/OvmfPkg/BlockMmioToBlockIoDxe/ComponentName.c new file mode 100644 index 0000000000..83eb64ea12 --- /dev/null +++ b/OvmfPkg/BlockMmioToBlockIoDxe/ComponentName.c @@ -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;
+}
diff --git a/OvmfPkg/OvmfPkg.fdf b/OvmfPkg/OvmfPkg.fdf index 47f8518bee..ec90c5494d 100644 --- a/OvmfPkg/OvmfPkg.fdf +++ b/OvmfPkg/OvmfPkg.fdf @@ -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
diff --git a/OvmfPkg/OvmfPkgIa32.dsc b/OvmfPkg/OvmfPkgIa32.dsc index 29cd5cadcc..edde083950 100644 --- a/OvmfPkg/OvmfPkgIa32.dsc +++ b/OvmfPkg/OvmfPkgIa32.dsc @@ -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
diff --git a/OvmfPkg/OvmfPkgIa32X64.dsc b/OvmfPkg/OvmfPkgIa32X64.dsc index 269fcf6556..ee4f58c0e1 100644 --- a/OvmfPkg/OvmfPkgIa32X64.dsc +++ b/OvmfPkg/OvmfPkgIa32X64.dsc @@ -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
diff --git a/OvmfPkg/OvmfPkgIa32X64.fdf b/OvmfPkg/OvmfPkgIa32X64.fdf index b6866e137b..13a39d8855 100644 --- a/OvmfPkg/OvmfPkgIa32X64.fdf +++ b/OvmfPkg/OvmfPkgIa32X64.fdf @@ -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
diff --git a/OvmfPkg/OvmfPkgX64.dsc b/OvmfPkg/OvmfPkgX64.dsc index 1b6d8e8ee4..a9ef611338 100644 --- a/OvmfPkg/OvmfPkgX64.dsc +++ b/OvmfPkg/OvmfPkgX64.dsc @@ -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
|