MMU.cpp File Reference

Modeling hardware memory management for virtual memory -> physical memory translation and protection. More...

#include "etiss/mm/MMU.h"
#include "etiss/CPUCore.h"
#include "etiss/jit/ReturnCode.h"

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Namespaces
namespace	etiss
	forwards: include/jit/*
namespace	etiss::mm

Functions
int32_t	etiss::mm::tlb_miss_handler (int32_t fault, MMU *mmu, uint64_t vma, MM_ACCESS access)
void	etiss::mm::DUMP_MMU (MMU *mmu)
void	ETISS_SIGNAL_MMU (ETISS_CPU *cpu, etiss_uint64 mmu_signal_)

Detailed Description

Modeling hardware memory management for virtual memory -> physical memory translation and protection.

It is oriented for porting OS to ETISS.

Memory Management Unit is the key component to support OS. Modern architectures vote for TLB to speed up virtual memory address (vma) to physical memory address (pma) translation. Since vma to pma could easily become the bottleneck, it is assumed hardware managed TLB is adopted. As for software managed TLB (old design), MMU has to be modified accordingly.

Definition in file MMU.cpp.

Function Documentation

ETISS_SIGNAL_MMU()

void ETISS_SIGNAL_MMU	(	ETISS_CPU *	cpu,
		etiss_uint64	mmu_signal_
	)

Definition at line 221 of file MMU.cpp.

References ETISS_CPU::_etiss_private_handle_, etiss::ERROR, etiss::CPUCore::getMMU(), and etiss::log().

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