#include <VirtualAddressSpace.h>

Inheritance diagram for ArmV7KernelVirtualAddressSpace:

Collaboration diagram for ArmV7KernelVirtualAddressSpace:

Public Member Functions
virtual bool	isMapped (void *virtualAddress)

virtual bool	map (physical_uintptr_t physicalAddress, void *virtualAddress, size_t flags)

virtual void	getMapping (void *virtualAddress, physical_uintptr_t &physicalAddress, size_t &flags)

virtual void	setFlags (void *virtualAddress, size_t newFlags)

virtual void	unmap (void *virtualAddress)

virtual bool	initialiseKernelAddressSpace ()

Public Member Functions inherited from ArmV7VirtualAddressSpace
virtual bool	isAddressValid (void *virtualAddress)

virtual void *	allocateStack ()

virtual void *	allocateStack (size_t stackSz)

virtual void	freeStack (void *pStack)

virtual bool	memIsInHeap (void *pMem)

virtual void *	getEndOfHeap ()

bool	mapPageStructures (physical_uintptr_t physicalAddress, void *virtualAddress, size_t flags)

virtual VirtualAddressSpace *	clone ()

virtual void	revertToKernelAddressSpace ()

virtual uintptr_t	getKernelStart () const

virtual uintptr_t	getUserStart () const

virtual uintptr_t	getUserReservedStart () const

virtual uintptr_t	getDynamicLinkerAddress () const

virtual uintptr_t	getKernelHeapStart () const

virtual uintptr_t	getKernelHeapEnd () const

virtual uintptr_t	getKernelCacheStart () const

virtual uintptr_t	getKernelCacheEnd () const

virtual uintptr_t	getKernelEventBlockStart () const

virtual uintptr_t	getKernelModulesStart () const

virtual uintptr_t	getKernelModulesEnd () const

Public Member Functions inherited from VirtualAddressSpace
virtual void *	expandHeap (ssize_t incr, size_t flags)

virtual bool	mapHuge (physical_uintptr_t physAddress, void *virtualAddress, size_t count, size_t flags)

virtual void	freeStack (Stack *pStack)=0

virtual VirtualAddressSpace *	clone (bool copyOnWrite=true)=0

virtual	~VirtualAddressSpace ()

void	setHeap (void heap, void heapEnd)

virtual bool	memIsInKernelHeap (void *pMem)=0

virtual uintptr_t	getDynamicStart () const

virtual uintptr_t	getDynamicEnd () const

virtual uintptr_t	getGlobalInfoBlock () const

Private Member Functions
	ArmV7KernelVirtualAddressSpace ()

	~ArmV7KernelVirtualAddressSpace ()

	ArmV7KernelVirtualAddressSpace (const ArmV7KernelVirtualAddressSpace &)

ArmV7KernelVirtualAddressSpace &	operator= (const ArmV7KernelVirtualAddressSpace &)

Static Private Attributes
static ArmV7KernelVirtualAddressSpace	m_Instance

Friends
class	Processor

class	ArmV7VirtualAddressSpace

VirtualAddressSpace &	VirtualAddressSpace::getKernelAddressSpace ()

Additional Inherited Members
Static Public Member Functions inherited from VirtualAddressSpace
static EXPORTED_PUBLIC VirtualAddressSpace &	getKernelAddressSpace ()

static VirtualAddressSpace *	create ()

Public Attributes inherited from VirtualAddressSpace
void *	m_Heap

void *	m_HeapEnd

Static Public Attributes inherited from VirtualAddressSpace
static const size_t	KernelMode = 0x01

static const size_t	Write = 0x02

static const size_t	Execute = 0x04

static const size_t	WriteThrough = 0x08

static const size_t	CacheDisable = 0x10

static const size_t	CopyOnWrite = 0x20

static const size_t	Swapped = 0x40

static const size_t	MemoryCoherent = 0x80

static const size_t	Guarded = 0x100

static const size_t	Shared = 0x200

static const size_t	WriteCombine = 0x400

static const size_t	Accessed = 0x800

static const size_t	Dirty = 0x1000

static const size_t	ClearDirty = 0x2000

static physical_uintptr_t	m_ZeroPage = 0

Protected Member Functions inherited from ArmV7VirtualAddressSpace
virtual	~ArmV7VirtualAddressSpace ()

	ArmV7VirtualAddressSpace (void Heap, physical_uintptr_t PhysicalPageDirectory, void VirtualPageDirectory, void VirtualPageTables, void VirtualStack)

bool	doIsMapped (void *virtualAddress)

bool	doMap (physical_uintptr_t physicalAddress, void *virtualAddress, size_t flags)

void	doGetMapping (void *virtualAddress, physical_uintptr_t &physicalAddress, size_t &flags)

void	doSetFlags (void *virtualAddress, size_t newFlags)

void	doUnmap (void *virtualAddress)

void *	doAllocateStack (size_t sSize)

Protected Member Functions inherited from VirtualAddressSpace
	VirtualAddressSpace (void *Heap)

Detailed Description

The kernel's VirtualAddressSpace on ArmV7

Definition at line 375 of file kernel/core/processor/armv7/VirtualAddressSpace.h.

Constructor & Destructor Documentation

ArmV7KernelVirtualAddressSpace::ArmV7KernelVirtualAddressSpace ( )

private

The constructor

Definition at line 652 of file armv7/VirtualAddressSpace.cc.

References initialiseKernelAddressSpace().

ArmV7KernelVirtualAddressSpace::~ArmV7KernelVirtualAddressSpace ( )

private

The destructor

Definition at line 663 of file armv7/VirtualAddressSpace.cc.

ArmV7KernelVirtualAddressSpace::ArmV7KernelVirtualAddressSpace ( const ArmV7KernelVirtualAddressSpace & )

private

The copy-constructor

Note: NOT implemented (Singleton)

Member Function Documentation

void ArmV7KernelVirtualAddressSpace::getMapping	(	void *	virtualAddress,
		physical_uintptr_t &	physicalAddress,
		size_t &	flags
	)

virtual

Get the physical address and the flags associated with the specific virtual address.

Note: This function is only valid on memory that was mapped with VirtualAddressSpace::map() and that is still mapped or marked as swapped out.

Parameters

[in]	virtualAddress	the address in the virtual address space
[out]	flags	the flags
[out]	physicalAddress	the physical address

Reimplemented from ArmV7VirtualAddressSpace.

Definition at line 676 of file armv7/VirtualAddressSpace.cc.

References VirtualAddressSpace::KernelMode.

bool ArmV7KernelVirtualAddressSpace::initialiseKernelAddressSpace ( )

virtual

Todo:: Correct flags

Definition at line 495 of file armv7/VirtualAddressSpace.cc.

References ArmV7VirtualAddressSpace::FirstLevelDescriptor::descriptor, ArmV7VirtualAddressSpace::SecondLevelDescriptor::descriptor, ArmV7VirtualAddressSpace::m_PhysicalPageDirectory, and ArmV7VirtualAddressSpace::m_VirtualPageDirectory.

Referenced by ArmV7KernelVirtualAddressSpace().

Here is the caller graph for this function:

bool ArmV7KernelVirtualAddressSpace::isMapped ( void * virtualAddress )

virtual

Checks whether a mapping the the specific virtual address exists. Pages marked as swapped out are not considered mapped.

Note: This function must be valid on all the valid addresses within the virtual address space.

Parameters

[in] virtualAddress the virtual address

Returns: true, if a mapping exists, false otherwise

Reimplemented from ArmV7VirtualAddressSpace.

Definition at line 667 of file armv7/VirtualAddressSpace.cc.

bool ArmV7KernelVirtualAddressSpace::map	(	physical_uintptr_t	physicalAddress,
		void *	virtualAddress,
		size_t	flags
	)

virtual

Map a specific physical page (of size PhysicalMemoryManager::getPageSize()) at a specific location into the virtual address space.

Note: This function must also work on pages marked as swapped out.

Parameters

[in]	physicalAddress	the address of the physical page that should be mapped into the virtual address space.
[in]	virtualAddress	the virtual address at which the page apears within the virtual address space.
[in]	flags	flags that describe which accesses should be allowed on the page.