ArmMmuLibCore.c File Reference

#include <Uefi.h>
#include <Arm/AArch32.h>
#include <Library/BaseMemoryLib.h>
#include <Library/CacheMaintenanceLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/ArmLib.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/PcdLib.h>

Go to the source code of this file.

Macros
#define	ID_MMFR0_SHARELVL_SHIFT   12
#define	ID_MMFR0_SHARELVL_MASK   0xf
#define	ID_MMFR0_SHARELVL_ONE   0
#define	ID_MMFR0_SHARELVL_TWO   1
#define	ID_MMFR0_INNERSHR_SHIFT   28
#define	ID_MMFR0_INNERSHR_MASK   0xf
#define	ID_MMFR0_OUTERSHR_SHIFT   8
#define	ID_MMFR0_OUTERSHR_MASK   0xf
#define	ID_MMFR0_SHR_IMP_UNCACHED   0
#define	ID_MMFR0_SHR_IMP_HW_COHERENT   1
#define	ID_MMFR0_SHR_IGNORED   0xf

Functions
UINTN EFIAPI	ArmReadIdMmfr0 (VOID)
BOOLEAN EFIAPI	ArmHasMpExtensions (VOID)
STATIC BOOLEAN	PreferNonshareableMemory (VOID)
STATIC VOID	PopulateLevel2PageTable (IN UINT32 *SectionEntry, IN UINT32 PhysicalBase, IN UINT32 RemainLength, IN ARM_MEMORY_REGION_ATTRIBUTES Attributes)
STATIC VOID	FillTranslationTable (IN UINT32 *TranslationTable, IN ARM_MEMORY_REGION_DESCRIPTOR *MemoryRegion)
RETURN_STATUS EFIAPI	ArmConfigureMmu (IN ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable, OUT VOID **TranslationTableBase OPTIONAL, OUT UINTN *TranslationTableSize OPTIONAL)

Detailed Description

File managing the MMU for ARMv7 architecture

Copyright (c) 2011-2016, ARM Limited. All rights reserved.

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

Definition in file ArmMmuLibCore.c.

Macro Definition Documentation

ID_MMFR0_INNERSHR_MASK

#define ID_MMFR0_INNERSHR_MASK   0xf

Definition at line 26 of file ArmMmuLibCore.c.

ID_MMFR0_INNERSHR_SHIFT

#define ID_MMFR0_INNERSHR_SHIFT   28

Definition at line 25 of file ArmMmuLibCore.c.

ID_MMFR0_OUTERSHR_MASK

#define ID_MMFR0_OUTERSHR_MASK   0xf

Definition at line 28 of file ArmMmuLibCore.c.

ID_MMFR0_OUTERSHR_SHIFT

#define ID_MMFR0_OUTERSHR_SHIFT   8

Definition at line 27 of file ArmMmuLibCore.c.

ID_MMFR0_SHARELVL_MASK

#define ID_MMFR0_SHARELVL_MASK   0xf

Definition at line 21 of file ArmMmuLibCore.c.

ID_MMFR0_SHARELVL_ONE

#define ID_MMFR0_SHARELVL_ONE   0

Definition at line 22 of file ArmMmuLibCore.c.

ID_MMFR0_SHARELVL_SHIFT

#define ID_MMFR0_SHARELVL_SHIFT   12

Definition at line 20 of file ArmMmuLibCore.c.

ID_MMFR0_SHARELVL_TWO

#define ID_MMFR0_SHARELVL_TWO   1

Definition at line 23 of file ArmMmuLibCore.c.

ID_MMFR0_SHR_IGNORED

#define ID_MMFR0_SHR_IGNORED   0xf

Definition at line 32 of file ArmMmuLibCore.c.

ID_MMFR0_SHR_IMP_HW_COHERENT

#define ID_MMFR0_SHR_IMP_HW_COHERENT   1

Definition at line 31 of file ArmMmuLibCore.c.

ID_MMFR0_SHR_IMP_UNCACHED

#define ID_MMFR0_SHR_IMP_UNCACHED   0

Definition at line 30 of file ArmMmuLibCore.c.

Function Documentation

ArmConfigureMmu()

RETURN_STATUS EFIAPI ArmConfigureMmu	(	IN ARM_MEMORY_REGION_DESCRIPTOR *	MemoryTable,
		OUT VOID **TranslationTableBase	OPTIONAL,
		OUT UINTN *TranslationTableSize	OPTIONAL
	)

Definition at line 334 of file ArmMmuLibCore.c.

FillTranslationTable()

STATIC VOID FillTranslationTable	(	IN UINT32 *	TranslationTable,
		IN ARM_MEMORY_REGION_DESCRIPTOR *	MemoryRegion
	)

Definition at line 221 of file ArmMmuLibCore.c.

PopulateLevel2PageTable()

STATIC VOID PopulateLevel2PageTable	(	IN UINT32 *	SectionEntry,
		IN UINT32	PhysicalBase,
		IN UINT32	RemainLength,
		IN ARM_MEMORY_REGION_ATTRIBUTES	Attributes
	)

Definition at line 85 of file ArmMmuLibCore.c.

PreferNonshareableMemory()

STATIC BOOLEAN PreferNonshareableMemory

(

VOID

)

Definition at line 48 of file ArmMmuLibCore.c.