MemTlb Class Reference

A TLB implementation relying on the cache. More...

#include <memtlb.h>

Inheritance diagram for MemTlb:

Protected Member Functions
Type	user_access (Type type)
int	init ()
int	read_code (unsigned long virt, unsigned len, void *buffer)
	Read the len instruction-bytes at the given address into a buffer.
int	prepare_virtual (unsigned virt, unsigned len, Type type, void *&ptr)
	MemTlb (DBus< MessageMem > &mem, DBus< MessageMemRegion > &memregion)

Protected Attributes
CpuState *	_cpu
Protected Attributes inherited from MemCache
DBus< MessageMem > &	_mem
DBus< MessageMemRegion > &	_memregion
unsigned	_fault
unsigned	_error_code
unsigned	_debug_fault_line
unsigned	_mtr_in
unsigned	_mtr_read
unsigned	_mtr_out

Private Types
enum	Features {   FEATURE_PSE = 1 << 0, FEATURE_PSE36 = 1 << 1, FEATURE_PAE = 1 << 2, FEATURE_SMALL_PDPT = 1 << 3,   FEATURE_LONG = 1 << 4 }

Private Member Functions
template<unsigned features, typename PTE_TYPE >
unsigned	tlb_fill2 (unsigned long virt, unsigned type, long unsigned &phys)
int	virt_to_phys (unsigned long virt, Type type, long unsigned &phys)
CacheEntry *	find_virtual (unsigned virt, unsigned len, Type type)
	Find a CacheEntry to a virtual memory access.

Static Private Member Functions
template<unsigned features, typename PTE_TYPE >
static unsigned	tlb_fill (MemTlb *tlb, unsigned long virt, unsigned type, long unsigned &phys)

Private Attributes
unsigned long long	_pdpt [4]
unsigned long	_msr_efer
unsigned	_paging_mode
unsigned(*	tlb_fill_func )(MemTlb *tlb, unsigned long virt, unsigned type, long unsigned &phys)

Additional Inherited Members
Public Types inherited from MemCache
enum	Type {   TYPE_R = 1u << 0, TYPE_W = 1u << 1, TYPE_RMW = TYPE_R | TYPE_W, TYPE_U = 1u << 2,   TYPE_RES = 1u << 3, TYPE_X = 1u << 4 }
Public Member Functions inherited from MemCache
CacheEntry *	get (unsigned long phys1, unsigned long phys2, unsigned len, Type type)
	Get an entry from the cache or fetch one from memory.
void	invalidate (bool writeback)
	Invalidate the cache, thus writeback the buffers.
	MemCache (DBus< MessageMem > &mem, DBus< MessageMemRegion > &memregion)
Public Attributes inherited from MemCache
bool	debug

Detailed Description

A TLB implementation relying on the cache.

Member Enumeration Documentation

enum MemTlb::Features

private

Enumerator:

FEATURE_PSE
FEATURE_PSE36
FEATURE_PAE
FEATURE_SMALL_PDPT
FEATURE_LONG

Constructor & Destructor Documentation

MemTlb::MemTlb ( DBus< MessageMem > &  mem, DBus< MessageMemRegion > &  memregion  )

inlineprotected

Member Function Documentation

CacheEntry* MemTlb::find_virtual ( unsigned  virt, unsigned  len, Type  type  )

inlineprivate

Find a CacheEntry to a virtual memory access.

int MemTlb::init ( )

inlineprotected

int MemTlb::prepare_virtual ( unsigned  virt, unsigned  len, Type  type, void *&  ptr  )

inlineprotected

int MemTlb::read_code ( unsigned long  virt, unsigned  len, void *  buffer  )

inlineprotected

Read the len instruction-bytes at the given address into a buffer.

template<unsigned features, typename PTE_TYPE >

static unsigned MemTlb::tlb_fill ( MemTlb *  tlb, unsigned long  virt, unsigned  type, long unsigned &  phys  )

inlinestaticprivate

template<unsigned features, typename PTE_TYPE >

unsigned MemTlb::tlb_fill2 ( unsigned long  virt, unsigned  type, long unsigned &  phys  )

inlineprivate

Type MemTlb::user_access ( Type  type )

inlineprotected

int MemTlb::virt_to_phys ( unsigned long  virt, Type  type, long unsigned &  phys  )

inlineprivate

Member Data Documentation

CpuState* MemTlb::_cpu

protected

unsigned long MemTlb::_msr_efer

private

unsigned MemTlb::_paging_mode

private

unsigned long long MemTlb::_pdpt[4]

private

unsigned(* MemTlb::tlb_fill_func)(MemTlb *tlb, unsigned long virt, unsigned type, long unsigned &phys)

private

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

• vancouver/executor/memtlb.h