HostedPhysicalMemoryManager::PageStack Class Reference

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

Collaboration diagram for HostedPhysicalMemoryManager::PageStack:

Public Member Functions
	PageStack () INITIALISATION_ONLY
physical_uintptr_t	allocate (size_t constraints)
void	free (uint64_t physicalAddress)
	~PageStack ()
size_t	freePages () const

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

Private Attributes
void *	m_Stack [StackCount]
size_t	m_StackMax [StackCount]
size_t	m_StackSize [StackCount]
size_t	m_FreePages

Static Private Attributes
static const size_t	StackCount = 1

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 106 of file kernel/core/processor/hosted/PhysicalMemoryManager.h.

Constructor & Destructor Documentation

HostedPhysicalMemoryManager::PageStack::PageStack

(

)

Default constructor does nothing

Definition at line 493 of file hosted/PhysicalMemoryManager.cc.

Referenced by ~PageStack().

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HostedPhysicalMemoryManager::PageStack::~PageStack ( )

inline

The destructor does nothing

Definition at line 119 of file kernel/core/processor/hosted/PhysicalMemoryManager.h.

References m_FreePages, operator=(), and PageStack().

HostedPhysicalMemoryManager::PageStack::PageStack ( const PageStack &  )

private

The copy-constructor

Note

Not implemented

Member Function Documentation

physical_uintptr_t HostedPhysicalMemoryManager::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

Note

Testing.

Definition at line 425 of file hosted/PhysicalMemoryManager.cc.

void HostedPhysicalMemoryManager::PageStack::free

(

uint64_t

physicalAddress

)

Free a physical page

Parameters

[in]

physicalAddress

physical address of the page

Note

Testing.

Definition at line 460 of file hosted/PhysicalMemoryManager.cc.

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

Referenced by HostedPhysicalMemoryManager::unmapRegion().

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

private

The copy-constructor

Note

Not implemented

Referenced by ~PageStack().

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Member Data Documentation

size_t HostedPhysicalMemoryManager::PageStack::m_FreePages

private

Current pages available.

Definition at line 147 of file kernel/core/processor/hosted/PhysicalMemoryManager.h.

Referenced by ~PageStack().

void* HostedPhysicalMemoryManager::PageStack::m_Stack[StackCount]

private

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

Definition at line 141 of file kernel/core/processor/hosted/PhysicalMemoryManager.h.

size_t HostedPhysicalMemoryManager::PageStack::m_StackMax[StackCount]

private

Size of the currently mapped stack

Definition at line 143 of file kernel/core/processor/hosted/PhysicalMemoryManager.h.

size_t HostedPhysicalMemoryManager::PageStack::m_StackSize[StackCount]

private

Currently used size of the stack

Definition at line 145 of file kernel/core/processor/hosted/PhysicalMemoryManager.h.

const size_t HostedPhysicalMemoryManager::PageStack::StackCount = 1

staticprivate

The number of Stacks

Definition at line 137 of file kernel/core/processor/hosted/PhysicalMemoryManager.h.

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

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