etiss::mm::PTE Class Reference

Page Table Entry (PTE) defines the composition of Page Frame Number (PFN) and relavant flags. More...

#include <PTE.h>

Collaboration diagram for etiss::mm::PTE:

Public Member Functions
	PTE ()
	PTE (uint64_t pte)
void	Update (uint64_t new_pte)
	Update the PTE with a new value.
uint64_t	GetByName (std::string const name) const
	Get the bit field value with its name.
void	SetFlagByName (std::string name, uint64_t val)
	Set the bit field value with its name.
void	ClearFlagByName (std::string name)
	Clear the bit field value with its name.
void	Dump ()
	Dump the details of the PTE entry.
uint64_t	Get () const
uint64_t	GetPPN () const

Private Member Functions
uint64_t	GenerateMask (uint64_t len) const
void	SetBit (uint32_t pos)
void	ClearBit (uint32_t pos)
bool	CheckBit (uint32_t pos) const

Private Attributes
uint64_t	ppn_val_
uint64_t	pte_val_

Detailed Description

Page Table Entry (PTE) defines the composition of Page Frame Number (PFN) and relavant flags.

A PTE contains page frame number (pfn) and protection flags. PTEFormat is used to record bit field of PFR and flags in PTE raw value.PFN or flags could be read/write with help of PTEFormat, which could be built up by its builder utility.

Definition at line 30 of file PTE.h.

Constructor & Destructor Documentation

PTE() [1/2]

etiss::mm::PTE::PTE ( )

inline

Definition at line 33 of file PTE.h.

PTE() [2/2]

etiss::mm::PTE::PTE ( uint64_t  pte )

inline

Definition at line 35 of file PTE.h.

References Update().

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Member Function Documentation

CheckBit()

bool etiss::mm::PTE::CheckBit ( uint32_t  pos ) const

inlineprivate

Definition at line 98 of file PTE.h.

References pte_val_, true, and uint64_t.

ClearBit()

void etiss::mm::PTE::ClearBit ( uint32_t  pos )

inlineprivate

Definition at line 96 of file PTE.h.

References pte_val_, and uint64_t.

Referenced by ClearFlagByName().

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ClearFlagByName()

void etiss::mm::PTE::ClearFlagByName

(

std::string

name

)

Clear the bit field value with its name.

Definition at line 85 of file PTE.cpp.

References ClearBit(), etiss::mm::PTEFormat::Dump(), etiss::FATALERROR, etiss::mm::PTEFormat::GetFormatMap(), etiss::mm::PTEFormat::Instance(), etiss::log(), and uint32_t.

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Dump()

void etiss::mm::PTE::Dump

(

)

Dump the details of the PTE entry.

Definition at line 104 of file PTE.cpp.

References etiss::mm::PTEFormat::DumpBitFild(), GetByName(), etiss::mm::PTEFormat::GetFormatMap(), etiss::mm::PTEFormat::GetPTELength(), etiss::mm::PTEFormat::Instance(), and pte_val_.

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GenerateMask()

uint64_t etiss::mm::PTE::GenerateMask ( uint64_t  len ) const

inlineprivate

Definition at line 84 of file PTE.h.

References uint64_t.

Referenced by GetByName(), and Update().

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Get()

uint64_t etiss::mm::PTE::Get ( ) const

inline

Definition at line 79 of file PTE.h.

References pte_val_.

GetByName()

uint64_t etiss::mm::PTE::GetByName

(

std::string const

name

)

const

Get the bit field value with its name.

Definition at line 48 of file PTE.cpp.

References etiss::mm::PTEFormat::Dump(), etiss::FATALERROR, GenerateMask(), etiss::mm::PTEFormat::GetFormatMap(), etiss::mm::PTEFormat::Instance(), etiss::log(), pte_val_, and uint32_t.

Referenced by Dump().

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GetPPN()

uint64_t etiss::mm::PTE::GetPPN ( ) const

inline

Definition at line 81 of file PTE.h.

References ppn_val_.

Referenced by etiss::mm::MMU::Translate().

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SetBit()

void etiss::mm::PTE::SetBit ( uint32_t  pos )

inlineprivate

Definition at line 94 of file PTE.h.

References pte_val_, and uint64_t.

Referenced by SetFlagByName().

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SetFlagByName()

void etiss::mm::PTE::SetFlagByName	(	std::string	name,
		uint64_t	val
	)

Set the bit field value with its name.

Definition at line 65 of file PTE.cpp.

References etiss::mm::PTEFormat::Dump(), etiss::FATALERROR, etiss::mm::PTEFormat::GetFormatMap(), etiss::mm::PTEFormat::Instance(), etiss::log(), SetBit(), uint32_t, and uint64_t.

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Update()

void etiss::mm::PTE::Update

(

uint64_t

new_pte

)

Update the PTE with a new value.

Definition at line 24 of file PTE.cpp.

References etiss::mm::PTEFormat::Dump(), etiss::FATALERROR, GenerateMask(), etiss::mm::PTEFormat::GetFormatMap(), etiss::mm::PTEFormat::GetPTELength(), etiss::mm::PTEFormat::Instance(), etiss::log(), ppn_val_, and pte_val_.

Referenced by PTE().

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Member Data Documentation

ppn_val_

uint64_t etiss::mm::PTE::ppn_val_

private

Definition at line 100 of file PTE.h.

Referenced by GetPPN(), and Update().

pte_val_

uint64_t etiss::mm::PTE::pte_val_

private

Definition at line 101 of file PTE.h.

Referenced by CheckBit(), ClearBit(), Dump(), Get(), GetByName(), SetBit(), and Update().

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

• /home/runner/work/etiss/etiss/include/etiss/mm/PTE.h
• /home/runner/work/etiss/etiss/src/mm/PTE.cpp