ArmV7PhysicalMemoryManager::PageStack Class Reference

The Stack of pages (below4GB, below64GB, no constraint). More...

Collaboration diagram for ArmV7PhysicalMemoryManager::PageStack:

Public Member Functions
	PageStack () INITIALISATION_ONLY
physical_uintptr_t	allocate (size_t constraints)
void	free (physical_uintptr_t physicalAddress)
	~PageStack ()

Private Member Functions
	PageStack (const PageStack &)
PageStack &	operator= (const PageStack &)

Private Attributes
physical_uintptr_t	m_Stack [1]
void *	m_Stack
size_t	m_StackMax
size_t	m_StackSize

Detailed Description

The Stack of pages (below4GB, below64GB, no constraint).

The actual page stack contains is a Stack of the pages with the constraints below4GB and below64GB and those pages without address size constraints.

Definition at line 81 of file kernel/core/processor/armv7/PhysicalMemoryManager.h.

Constructor & Destructor Documentation

ArmV7PhysicalMemoryManager::PageStack::PageStack

(

)

Default constructor does nothing

Definition at line 293 of file armv7/PhysicalMemoryManager.cc.

Referenced by ~PageStack().

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ArmV7PhysicalMemoryManager::PageStack::~PageStack ( )

inline

The destructor does nothing

Definition at line 94 of file kernel/core/processor/armv7/PhysicalMemoryManager.h.

References operator=(), and PageStack().

ArmV7PhysicalMemoryManager::PageStack::PageStack ( const PageStack &  )

private

The copy-constructor

Note

Not implemented

Member Function Documentation

physical_uintptr_t ArmV7PhysicalMemoryManager::PageStack::allocate

(

size_t

constraints

)

Allocate a page with certain constraints

Parameters

[in]

constraints

either below4GB or below64GB or 0

Returns

The physical address of the allocated page or 0

Definition at line 245 of file armv7/PhysicalMemoryManager.cc.

void ArmV7PhysicalMemoryManager::PageStack::free

(

physical_uintptr_t

physicalAddress

)

Free a physical page

Parameters

[in]

physicalAddress

physical address of the page

Definition at line 259 of file armv7/PhysicalMemoryManager.cc.

References VirtualAddressSpace::getKernelAddressSpace(), PhysicalMemoryManager::getPageSize(), VirtualAddressSpace::KernelMode, ArmV7VirtualAddressSpace::map(), physicalAddress(), and VirtualAddressSpace::Write.

PageStack& ArmV7PhysicalMemoryManager::PageStack::operator= ( const PageStack &  )

private

The copy-constructor

Note

Not implemented

Referenced by ~PageStack().

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Member Data Documentation

physical_uintptr_t ArmV7PhysicalMemoryManager::PageStack::m_Stack[1]

private

Pointer to the base address of the stack. The stack grows upwards.

Definition at line 111 of file kernel/core/processor/armv7/PhysicalMemoryManager.h.

size_t ArmV7PhysicalMemoryManager::PageStack::m_StackMax

private

Size of the currently mapped stack

Definition at line 115 of file kernel/core/processor/armv7/PhysicalMemoryManager.h.

size_t ArmV7PhysicalMemoryManager::PageStack::m_StackSize

private

Currently used size of the stack

Definition at line 117 of file kernel/core/processor/armv7/PhysicalMemoryManager.h.

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The documentation for this class was generated from the following files:

• kernel/core/processor/armv7/PhysicalMemoryManager.h
• armv7/PhysicalMemoryManager.cc