#include <multi_level_page_table.hh>

Inheritance diagram for gem5::MultiLevelPageTable< EntryTypes >:

Public Member Functions
	MultiLevelPageTable (const std::string &__name, uint64_t _pid, System *_sys, Addr _pageSize)

	~MultiLevelPageTable ()

void	initState () override

Addr	basePtr ()

void	map (Addr vaddr, Addr paddr, int64_t size, uint64_t flags=0) override
	Maps a virtual memory region to a physical memory region.

void	remap (Addr vaddr, int64_t size, Addr new_vaddr) override

void	unmap (Addr vaddr, int64_t size) override

void	serialize (CheckpointOut &cp) const override
	Serialize an object.

void	unserialize (CheckpointIn &cp) override
	Unserialize an object.

Public Member Functions inherited from gem5::EmulationPageTable
	EmulationPageTable (const std::string &__name, uint64_t _pid, Addr _pageSize)

uint64_t	pid () const

virtual	~EmulationPageTable ()

virtual void	initState ()

const std::string	name () const

Addr	pageAlign (Addr a)

Addr	pageOffset (Addr a)

Addr	pageSize ()

virtual void	map (Addr vaddr, Addr paddr, int64_t size, uint64_t flags=0)
	Maps a virtual memory region to a physical memory region.

virtual void	remap (Addr vaddr, int64_t size, Addr new_vaddr)

virtual void	unmap (Addr vaddr, int64_t size)

virtual bool	isUnmapped (Addr vaddr, int64_t size)
	Check if any pages in a region are already allocated.

const Entry *	lookup (Addr vaddr)
	Lookup function.

bool	translate (Addr vaddr, Addr &paddr)
	Translate function.

bool	translate (Addr vaddr)
	Simplified translate function (just check for translation)

TranslationGenPtr	translateRange (Addr vaddr, Addr size)

Fault	translate (const RequestPtr &req)
	Perform a translation on the memory request, fills in paddr field of req.

const std::string	externalize () const
	Dump all items in the pTable, to a concatenation of strings of the form Addr:Entry;.

void	getMappings (std::vector< std::pair< Addr, Addr > > *addr_mappings)

void	serialize (CheckpointOut &cp) const override
	Serialize an object.

void	unserialize (CheckpointIn &cp) override
	Unserialize an object.

Public Member Functions inherited from gem5::Serializable
	Serializable ()

virtual	~Serializable ()

virtual void	serialize (CheckpointOut &cp) const =0
	Serialize an object.

virtual void	unserialize (CheckpointIn &cp)=0
	Unserialize an object.

void	serializeSection (CheckpointOut &cp, const char *name) const
	Serialize an object into a new section.

void	serializeSection (CheckpointOut &cp, const std::string &name) const

void	unserializeSection (CheckpointIn &cp, const char *name)
	Unserialize an a child object.

void	unserializeSection (CheckpointIn &cp, const std::string &name)

Private Types
typedef LastType< EntryTypes... >::type	Final

Private Attributes
System *	system
	Pointer to System object.

Addr	_basePtr
	Physical address to the last level of the page table.

Additional Inherited Members
Public Types inherited from gem5::EmulationPageTable
enum	MappingFlags : uint32_t { Clobber = 1 , Uncacheable = 4 , ReadOnly = 8 }

Static Public Member Functions inherited from gem5::Serializable
static const std::string &	currentSection ()
	Gets the fully-qualified name of the active section.

static void	generateCheckpointOut (const std::string &cpt_dir, std::ofstream &outstream)
	Generate a checkpoint file so that the serialization can be routed to it.

Public Attributes inherited from gem5::EmulationPageTable
bool	shared

Protected Types inherited from gem5::EmulationPageTable
typedef std::unordered_map< Addr, Entry >	PTable

typedef PTable::iterator	PTableItr

Protected Attributes inherited from gem5::EmulationPageTable
PTable	pTable

const Addr	_pageSize

const Addr	offsetMask

const uint64_t	_pid

const std::string	_name

Detailed Description

template<class ... EntryTypes>
class gem5::MultiLevelPageTable< EntryTypes >

Definition at line 186 of file multi_level_page_table.hh.

Member Typedef Documentation

◆ Final

template<class ... EntryTypes>

typedef LastType<EntryTypes...>::type gem5::MultiLevelPageTable< EntryTypes >::Final

private

Definition at line 188 of file multi_level_page_table.hh.

Constructor & Destructor Documentation

◆ MultiLevelPageTable()

template<class ... EntryTypes>

gem5::MultiLevelPageTable< EntryTypes >::MultiLevelPageTable	(	const std::string &	__name,
		uint64_t	_pid,
		System *	_sys,
		Addr	_pageSize
	)

inline

Definition at line 201 of file multi_level_page_table.hh.

◆ ~MultiLevelPageTable()

template<class ... EntryTypes>

gem5::MultiLevelPageTable< EntryTypes >::~MultiLevelPageTable ( )

inline

Definition at line 206 of file multi_level_page_table.hh.

Member Function Documentation

◆ basePtr()

template<class ... EntryTypes>

Addr gem5::MultiLevelPageTable< EntryTypes >::basePtr ( )

inline

Definition at line 217 of file multi_level_page_table.hh.

References gem5::MultiLevelPageTable< EntryTypes >::_basePtr.

◆ initState()

template<class ... EntryTypes>

void gem5::MultiLevelPageTable< EntryTypes >::initState ( )

inlineoverridevirtual

Reimplemented from gem5::EmulationPageTable.

Definition at line 209 of file multi_level_page_table.hh.

References gem5::MultiLevelPageTable< EntryTypes >::_basePtr, gem5::EmulationPageTable::_pageSize, gem5::EmulationPageTable::shared, and gem5::MultiLevelPageTable< EntryTypes >::system.

◆ map()

template<class ... EntryTypes>

void gem5::MultiLevelPageTable< EntryTypes >::map	(	Addr	vaddr,
		Addr	paddr,
		int64_t	size,
		uint64_t	flags = `0`
	)

inlineoverridevirtual

Maps a virtual memory region to a physical memory region.

Parameters

vaddr	The starting virtual address of the region.
paddr	The starting physical address where the region is mapped.
size	The length of the region.
flags	Generic mapping flags that can be set by or-ing values from MappingFlags enum.

Reimplemented from gem5::EmulationPageTable.

Definition at line 220 of file multi_level_page_table.hh.

References gem5::MultiLevelPageTable< EntryTypes >::_basePtr, gem5::EmulationPageTable::_pageSize, DPRINTF, flags, gem5::EmulationPageTable::map(), gem5::ArmISA::offset, gem5::System::physProxy, gem5::EmulationPageTable::ReadOnly, gem5::MultiLevelPageTable< EntryTypes >::system, gem5::EmulationPageTable::Uncacheable, and gem5::MipsISA::vaddr.