QemuFlash.h File Reference

#include <Protocol/FirmwareVolumeBlock.h>

Go to the source code of this file.

Functions
EFI_STATUS	QemuFlashRead (IN EFI_LBA Lba, IN UINTN Offset, IN UINTN *NumBytes, IN UINT8 *Buffer)
EFI_STATUS	QemuFlashWrite (IN EFI_LBA Lba, IN UINTN Offset, IN UINTN *NumBytes, IN UINT8 *Buffer)
EFI_STATUS	QemuFlashEraseBlock (IN EFI_LBA Lba)
EFI_STATUS	QemuFlashInitialize (VOID)
VOID	QemuFlashConvertPointers (VOID)
VOID	QemuFlashBeforeProbe (IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINTN FdBlockSize, IN UINTN FdBlockCount)
VOID	QemuFlashPtrWrite (IN volatile UINT8 *Ptr, IN UINT8 Value)

Variables
UINT8 *	mFlashBase

Detailed Description

OVMF support for QEMU system firmware flash device

Copyright (c) 2009 - 2013, Intel Corporation. All rights reserved.

SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file QemuFlash.h.

Function Documentation

QemuFlashBeforeProbe()

VOID QemuFlashBeforeProbe	(	IN EFI_PHYSICAL_ADDRESS	BaseAddress,
		IN UINTN	FdBlockSize,
		IN UINTN	FdBlockCount
	)

Definition at line 34 of file QemuFlashDxe.c.

QemuFlashConvertPointers()

VOID QemuFlashConvertPointers

(

VOID

)

Definition at line 22 of file QemuFlashDxe.c.

QemuFlashEraseBlock()

EFI_STATUS QemuFlashEraseBlock

(

IN EFI_LBA

Lba

)

Erase a QEMU Flash block

Parameters

Lba	The logical block index to erase.

Definition at line 234 of file QemuFlash.c.

QemuFlashInitialize()

EFI_STATUS QemuFlashInitialize

(

VOID

)

Initializes QEMU flash memory support

Return values

EFI_WRITE_PROTECTED	The QEMU flash device is not present.
EFI_SUCCESS	The QEMU flash device is supported.

Definition at line 258 of file QemuFlash.c.

QemuFlashPtrWrite()

VOID QemuFlashPtrWrite	(	IN volatile UINT8 *	Ptr,
		IN UINT8	Value
	)

Write to QEMU Flash

Parameters

[in]	Ptr	Pointer to the location to write.
[in]	Value	The value to write.

Definition at line 53 of file QemuFlashDxe.c.

QemuFlashRead()

EFI_STATUS QemuFlashRead	(	IN EFI_LBA	Lba,
		IN UINTN	Offset,
		IN UINTN *	NumBytes,
		IN UINT8 *	Buffer
	)

Read from QEMU Flash

Parameters

[in]	Lba	The starting logical block index to read from.
[in]	Offset	Offset into the block at which to begin reading.
[in]	NumBytes	On input, indicates the requested read size. On output, indicates the actual number of bytes read
[in]	Buffer	Pointer to the buffer to read into.

Definition at line 150 of file QemuFlash.c.

QemuFlashWrite()

EFI_STATUS QemuFlashWrite	(	IN EFI_LBA	Lba,
		IN UINTN	Offset,
		IN UINTN *	NumBytes,
		IN UINT8 *	Buffer
	)

Write to QEMU Flash

Parameters

[in]	Lba	The starting logical block index to write to.
[in]	Offset	Offset into the block at which to begin writing.
[in]	NumBytes	On input, indicates the requested write size. On output, indicates the actual number of bytes written
[in]	Buffer	Pointer to the data to write.

Definition at line 188 of file QemuFlash.c.

Variable Documentation

mFlashBase

UINT8* mFlashBase

extern

Definition at line 27 of file QemuFlash.c.