#include <table_walker.hh>

Public Member Functions
void	doL1Descriptor ()

void	doL2Descriptor ()

void	doLongDescriptor ()

	WalkerState ()

std::string	name () const

Public Attributes
ThreadContext *	tc
	Thread context that we're doing the walk for. More...

bool	aarch64
	If the access is performed in AArch64 state. More...

ExceptionLevel	el
	Current exception level. More...

int	physAddrRange
	Current physical address range in bits. More...

RequestPtr	req
	Request that is currently being serviced. More...

TlbEntry	walkEntry
	Initial walk entry allowing to skip lookup levels. More...

uint16_t	asid
	ASID that we're servicing the request under. More...

vmid_t	vmid

bool	isHyp

BaseMMU::Translation *	transState
	Translation state for delayed requests. More...

Fault	fault
	The fault that we are going to return. More...

Addr	vaddr
	The virtual address that is being translated with tagging removed. More...

Addr	vaddr_tainted
	The virtual address that is being translated. More...

SCTLR	sctlr
	Cached copy of the sctlr as it existed when translation began. More...

SCR	scr
	Cached copy of the scr as it existed when translation began. More...

CPSR	cpsr
	Cached copy of the cpsr as it existed when translation began. More...

union {
TTBCR ttbcr

TCR tcr

};
	Cached copy of ttbcr/tcr as it existed when translation began. More...

HTCR	htcr
	Cached copy of the htcr as it existed when translation began. More...

HCR	hcr
	Cached copy of the htcr as it existed when translation began. More...

VTCR_t	vtcr
	Cached copy of the vtcr as it existed when translation began. More...

bool	isWrite
	If the access is a write. More...

bool	isFetch
	If the access is a fetch (for execution, and no-exec) must be checked? More...

bool	isSecure
	If the access comes from the secure state. More...

bool	isUncacheable
	True if table walks are uncacheable (for table descriptors) More...

bool	secureLookup
	Helper variables used to implement hierarchical access permissions when the long-desc. More...

bool	rwTable

bool	userTable

bool	xnTable

bool	pxnTable

bool	hpd
	Hierarchical access permission disable. More...

bool	stage2Req
	Flag indicating if a second stage of lookup is required. More...

BaseMMU::Translation *	stage2Tran
	A pointer to the stage 2 translation that's in progress. More...

bool	timing
	If the mode is timing or atomic. More...

bool	functional
	If the atomic mode should be functional. More...

BaseMMU::Mode	mode
	Save mode for use in delayed response. More...

MMU::ArmTranslationType	tranType
	The translation type that has been requested. More...

L1Descriptor	l1Desc
	Short-format descriptors. More...

L2Descriptor	l2Desc

LongDescriptor	longDesc
	Long-format descriptor (LPAE and AArch64) More...

bool	delayed
	Whether the response is delayed in timing mode due to additional lookups. More...

TableWalker *	tableWalker

Tick	startTime
	Timestamp for calculating elapsed time in service (for stats) More...

unsigned	levels
	Page entries walked during service (for stats) More...

Detailed Description

Definition at line 801 of file table_walker.hh.

Constructor & Destructor Documentation

◆ WalkerState()

gem5::TableWalker::WalkerState::WalkerState ( )

Definition at line 125 of file table_walker.cc.

Member Function Documentation

◆ doL1Descriptor()

void gem5::ArmISA::TableWalker::WalkerState::doL1Descriptor ( )

◆ doL2Descriptor()

void gem5::ArmISA::TableWalker::WalkerState::doL2Descriptor ( )

◆ doLongDescriptor()

void gem5::ArmISA::TableWalker::WalkerState::doLongDescriptor ( )

◆ name()

std::string gem5::ArmISA::TableWalker::WalkerState::name ( ) const

inline

Definition at line 931 of file table_walker.hh.

References gem5::Named::name(), and tableWalker.

Member Data Documentation

◆

union { ... }

Cached copy of ttbcr/tcr as it existed when translation began.

◆ aarch64

bool gem5::ArmISA::TableWalker::WalkerState::aarch64

If the access is performed in AArch64 state.

Definition at line 808 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doLongDescriptor(), gem5::ArmISA::TableWalker::LongDescriptor::global(), gem5::ArmISA::TableWalker::insertPartialTableEntry(), gem5::ArmISA::TableWalker::insertTableEntry(), gem5::ArmISA::TableWalker::processWalkAArch64(), gem5::ArmISA::TableWalker::processWalkWrapper(), and gem5::ArmISA::TableWalker::walk().

◆ asid

uint16_t gem5::ArmISA::TableWalker::WalkerState::asid

ASID that we're servicing the request under.

Definition at line 823 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::insertPartialTableEntry(), gem5::ArmISA::TableWalker::insertTableEntry(), gem5::ArmISA::TableWalker::processWalkWrapper(), and gem5::ArmISA::TableWalker::walk().

◆ cpsr

CPSR gem5::ArmISA::TableWalker::WalkerState::cpsr

Cached copy of the cpsr as it existed when translation began.

Definition at line 846 of file table_walker.hh.

◆ delayed

bool gem5::ArmISA::TableWalker::WalkerState::delayed

Whether the response is delayed in timing mode due to additional lookups.

Definition at line 914 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doL1Descriptor(), gem5::ArmISA::TableWalker::doL1DescriptorWrapper(), gem5::ArmISA::TableWalker::doL2DescriptorWrapper(), gem5::ArmISA::TableWalker::doLongDescriptor(), and gem5::ArmISA::TableWalker::doLongDescriptorWrapper().

◆ el

ExceptionLevel gem5::ArmISA::TableWalker::WalkerState::el

Current exception level.

Definition at line 811 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::LongDescriptor::global(), gem5::ArmISA::TableWalker::insertPartialTableEntry(), gem5::ArmISA::TableWalker::insertTableEntry(), gem5::ArmISA::TableWalker::memAttrsAArch64(), gem5::ArmISA::TableWalker::processWalkAArch64(), gem5::ArmISA::TableWalker::processWalkWrapper(), and gem5::ArmISA::TableWalker::walk().

◆ fault

Fault gem5::ArmISA::TableWalker::WalkerState::fault

The fault that we are going to return.

Definition at line 831 of file table_walker.hh.

◆ functional

bool gem5::ArmISA::TableWalker::WalkerState::functional

If the atomic mode should be functional.

Definition at line 897 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::fetchDescriptor(), and gem5::ArmISA::TableWalker::walk().

◆ hcr

HCR gem5::ArmISA::TableWalker::WalkerState::hcr

Cached copy of the htcr as it existed when translation began.

Definition at line 859 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::LongDescriptor::global(), gem5::ArmISA::TableWalker::insertPartialTableEntry(), gem5::ArmISA::TableWalker::processWalkAArch64(), and gem5::ArmISA::TableWalker::walk().

◆ hpd

bool gem5::ArmISA::TableWalker::WalkerState::hpd

Hierarchical access permission disable.

Definition at line 885 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doLongDescriptor(), and gem5::ArmISA::TableWalker::processWalkAArch64().

◆ htcr

HTCR gem5::ArmISA::TableWalker::WalkerState::htcr

Cached copy of the htcr as it existed when translation began.

Definition at line 856 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::processWalkLPAE(), and gem5::ArmISA::TableWalker::walk().

◆ isFetch

bool gem5::ArmISA::TableWalker::WalkerState::isFetch

If the access is a fetch (for execution, and no-exec) must be checked?

Definition at line 868 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doL1Descriptor(), gem5::ArmISA::TableWalker::doL2Descriptor(), gem5::ArmISA::TableWalker::generateLongDescFault(), gem5::ArmISA::TableWalker::insertTableEntry(), gem5::ArmISA::TableWalker::processWalk(), gem5::ArmISA::TableWalker::processWalkAArch64(), gem5::ArmISA::TableWalker::processWalkLPAE(), and gem5::ArmISA::TableWalker::walk().

◆ isHyp

bool gem5::ArmISA::TableWalker::WalkerState::isHyp

Definition at line 825 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::insertPartialTableEntry(), gem5::ArmISA::TableWalker::insertTableEntry(), gem5::ArmISA::TableWalker::processWalkLPAE(), gem5::ArmISA::TableWalker::processWalkWrapper(), and gem5::ArmISA::TableWalker::walk().

◆ isSecure

bool gem5::ArmISA::TableWalker::WalkerState::isSecure

If the access comes from the secure state.

Definition at line 871 of file table_walker.hh.

◆ isUncacheable

bool gem5::ArmISA::TableWalker::WalkerState::isUncacheable

True if table walks are uncacheable (for table descriptors)

Definition at line 874 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doL1Descriptor(), gem5::ArmISA::TableWalker::doLongDescriptor(), gem5::ArmISA::TableWalker::processWalk(), gem5::ArmISA::TableWalker::processWalkAArch64(), and gem5::ArmISA::TableWalker::processWalkLPAE().

◆ isWrite

bool gem5::ArmISA::TableWalker::WalkerState::isWrite

If the access is a write.

Definition at line 865 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doL1Descriptor(), gem5::ArmISA::TableWalker::doL2Descriptor(), gem5::ArmISA::TableWalker::generateLongDescFault(), gem5::ArmISA::TableWalker::processWalk(), gem5::ArmISA::TableWalker::processWalkAArch64(), gem5::ArmISA::TableWalker::processWalkLPAE(), and gem5::ArmISA::TableWalker::walk().

◆ l1Desc

L1Descriptor gem5::ArmISA::TableWalker::WalkerState::l1Desc

Short-format descriptors.

Definition at line 906 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doL1Descriptor(), gem5::ArmISA::TableWalker::doL1DescriptorWrapper(), gem5::ArmISA::TableWalker::doL2Descriptor(), and gem5::ArmISA::TableWalker::processWalk().

◆ l2Desc

L2Descriptor gem5::ArmISA::TableWalker::WalkerState::l2Desc

Definition at line 907 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doL1Descriptor(), and gem5::ArmISA::TableWalker::doL2Descriptor().

◆ levels

unsigned gem5::ArmISA::TableWalker::WalkerState::levels

Page entries walked during service (for stats)

Definition at line 922 of file table_walker.hh.

◆ longDesc

LongDescriptor gem5::ArmISA::TableWalker::WalkerState::longDesc

Long-format descriptor (LPAE and AArch64)

Definition at line 910 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doLongDescriptor(), gem5::ArmISA::TableWalker::doLongDescriptorWrapper(), gem5::ArmISA::TableWalker::generateLongDescFault(), gem5::ArmISA::TableWalker::processWalkAArch64(), and gem5::ArmISA::TableWalker::processWalkLPAE().

◆ mode

BaseMMU::Mode gem5::ArmISA::TableWalker::WalkerState::mode

Save mode for use in delayed response.

Definition at line 900 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doL1DescriptorWrapper(), gem5::ArmISA::TableWalker::doL2DescriptorWrapper(), gem5::ArmISA::TableWalker::doLongDescriptorWrapper(), gem5::ArmISA::TableWalker::fetchDescriptor(), gem5::ArmISA::TableWalker::insertTableEntry(), gem5::ArmISA::TableWalker::processWalkAArch64(), gem5::ArmISA::TableWalker::processWalkWrapper(), gem5::ArmISA::TableWalker::testWalk(), and gem5::ArmISA::TableWalker::walk().

◆ physAddrRange

int gem5::ArmISA::TableWalker::WalkerState::physAddrRange

Current physical address range in bits.

Definition at line 814 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doLongDescriptor(), gem5::ArmISA::TableWalker::processWalkAArch64(), and gem5::ArmISA::TableWalker::walk().

◆ pxnTable

bool gem5::ArmISA::TableWalker::WalkerState::pxnTable

Definition at line 882 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doLongDescriptor(), gem5::ArmISA::TableWalker::insertPartialTableEntry(), gem5::ArmISA::TableWalker::insertTableEntry(), gem5::ArmISA::TableWalker::walk(), and gem5::ArmISA::TableWalker::walkAddresses().

◆ req

RequestPtr gem5::ArmISA::TableWalker::WalkerState::req

Request that is currently being serviced.

Definition at line 817 of file table_walker.hh.

◆ rwTable

bool gem5::ArmISA::TableWalker::WalkerState::rwTable

Definition at line 879 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doLongDescriptor(), gem5::ArmISA::TableWalker::insertPartialTableEntry(), gem5::ArmISA::TableWalker::insertTableEntry(), gem5::ArmISA::TableWalker::walk(), and gem5::ArmISA::TableWalker::walkAddresses().

◆ scr

SCR gem5::ArmISA::TableWalker::WalkerState::scr

Cached copy of the scr as it existed when translation began.

Definition at line 843 of file table_walker.hh.

◆ sctlr

SCTLR gem5::ArmISA::TableWalker::WalkerState::sctlr

Cached copy of the sctlr as it existed when translation began.

Definition at line 840 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doL1Descriptor(), gem5::ArmISA::TableWalker::doL2Descriptor(), gem5::ArmISA::TableWalker::doLongDescriptor(), gem5::ArmISA::TableWalker::insertTableEntry(), gem5::ArmISA::TableWalker::processWalk(), gem5::ArmISA::TableWalker::processWalkAArch64(), gem5::ArmISA::TableWalker::processWalkLPAE(), and gem5::ArmISA::TableWalker::walk().

◆ secureLookup

bool gem5::ArmISA::TableWalker::WalkerState::secureLookup

Helper variables used to implement hierarchical access permissions when the long-desc.

format is used (LPAE only)

Definition at line 878 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doLongDescriptor(), gem5::ArmISA::TableWalker::LongDescriptor::global(), gem5::ArmISA::TableWalker::processWalkAArch64(), gem5::ArmISA::TableWalker::L1Descriptor::secure(), gem5::ArmISA::TableWalker::LongDescriptor::secure(), and gem5::ArmISA::TableWalker::walk().

◆ stage2Req

bool gem5::ArmISA::TableWalker::WalkerState::stage2Req

Flag indicating if a second stage of lookup is required.

Definition at line 888 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::fetchDescriptor(), and gem5::ArmISA::TableWalker::walk().

◆ stage2Tran

BaseMMU::Translation* gem5::ArmISA::TableWalker::WalkerState::stage2Tran

A pointer to the stage 2 translation that's in progress.

Definition at line 891 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doL1DescriptorWrapper(), gem5::ArmISA::TableWalker::doL2DescriptorWrapper(), gem5::ArmISA::TableWalker::doLongDescriptorWrapper(), and gem5::ArmISA::TableWalker::fetchDescriptor().

◆ startTime

Tick gem5::ArmISA::TableWalker::WalkerState::startTime

Timestamp for calculating elapsed time in service (for stats)

Definition at line 919 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doL1DescriptorWrapper(), gem5::ArmISA::TableWalker::doL2DescriptorWrapper(), gem5::ArmISA::TableWalker::doLongDescriptorWrapper(), gem5::ArmISA::TableWalker::processWalk(), gem5::ArmISA::TableWalker::processWalkAArch64(), gem5::ArmISA::TableWalker::processWalkLPAE(), gem5::ArmISA::TableWalker::processWalkWrapper(), and gem5::ArmISA::TableWalker::walk().

◆ tableWalker

TableWalker* gem5::ArmISA::TableWalker::WalkerState::tableWalker

Definition at line 916 of file table_walker.hh.

Referenced by name(), and gem5::ArmISA::TableWalker::walk().

◆ tc

ThreadContext* gem5::ArmISA::TableWalker::WalkerState::tc

Thread context that we're doing the walk for.

Definition at line 805 of file table_walker.hh.

◆ tcr

TCR gem5::ArmISA::TableWalker::WalkerState::tcr

Definition at line 852 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::processWalkAArch64(), and gem5::ArmISA::TableWalker::walk().

◆ timing

bool gem5::ArmISA::TableWalker::WalkerState::timing

If the mode is timing or atomic.

Definition at line 894 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doL1Descriptor(), gem5::ArmISA::TableWalker::doL2Descriptor(), gem5::ArmISA::TableWalker::doLongDescriptor(), gem5::ArmISA::TableWalker::fetchDescriptor(), gem5::ArmISA::TableWalker::insertTableEntry(), gem5::ArmISA::TableWalker::processWalk(), gem5::ArmISA::TableWalker::processWalkAArch64(), gem5::ArmISA::TableWalker::processWalkLPAE(), and gem5::ArmISA::TableWalker::walk().

◆ transState

BaseMMU::Translation* gem5::ArmISA::TableWalker::WalkerState::transState

Translation state for delayed requests.

Definition at line 828 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doL1DescriptorWrapper(), gem5::ArmISA::TableWalker::doL2DescriptorWrapper(), gem5::ArmISA::TableWalker::doLongDescriptorWrapper(), gem5::ArmISA::TableWalker::processWalkWrapper(), and gem5::ArmISA::TableWalker::walk().

◆ tranType

MMU::ArmTranslationType gem5::ArmISA::TableWalker::WalkerState::tranType

The translation type that has been requested.

Definition at line 903 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doL1DescriptorWrapper(), gem5::ArmISA::TableWalker::doL2DescriptorWrapper(), gem5::ArmISA::TableWalker::doLongDescriptorWrapper(), gem5::ArmISA::TableWalker::fetchDescriptor(), gem5::ArmISA::TableWalker::processWalkWrapper(), and gem5::ArmISA::TableWalker::walk().

◆ ttbcr

TTBCR gem5::ArmISA::TableWalker::WalkerState::ttbcr

Definition at line 851 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::processWalk(), gem5::ArmISA::TableWalker::processWalkLPAE(), and gem5::ArmISA::TableWalker::walk().

◆ userTable

bool gem5::ArmISA::TableWalker::WalkerState::userTable

Definition at line 880 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doLongDescriptor(), gem5::ArmISA::TableWalker::insertPartialTableEntry(), gem5::ArmISA::TableWalker::insertTableEntry(), gem5::ArmISA::TableWalker::walk(), and gem5::ArmISA::TableWalker::walkAddresses().

◆ vaddr

Addr gem5::ArmISA::TableWalker::WalkerState::vaddr

The virtual address that is being translated with tagging removed.

Definition at line 834 of file table_walker.hh.

◆ vaddr_tainted

Addr gem5::ArmISA::TableWalker::WalkerState::vaddr_tainted

The virtual address that is being translated.

Definition at line 837 of file table_walker.hh.

◆ vmid

vmid_t gem5::ArmISA::TableWalker::WalkerState::vmid

Definition at line 824 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::insertPartialTableEntry(), gem5::ArmISA::TableWalker::insertTableEntry(), gem5::ArmISA::TableWalker::processWalkWrapper(), and gem5::ArmISA::TableWalker::walk().

◆ vtcr

VTCR_t gem5::ArmISA::TableWalker::WalkerState::vtcr

Cached copy of the vtcr as it existed when translation began.

Definition at line 862 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::processWalkAArch64(), gem5::ArmISA::TableWalker::processWalkLPAE(), gem5::ArmISA::TableWalker::walk(), and gem5::ArmISA::TableWalker::walkAddresses().

◆ walkEntry

TlbEntry gem5::ArmISA::TableWalker::WalkerState::walkEntry

Initial walk entry allowing to skip lookup levels.

Definition at line 820 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::processWalkWrapper(), gem5::ArmISA::TableWalker::walk(), and gem5::ArmISA::TableWalker::walkAddresses().

◆ xnTable

bool gem5::ArmISA::TableWalker::WalkerState::xnTable

Definition at line 881 of file table_walker.hh.

Referenced by gem5::ArmISA::TableWalker::doLongDescriptor(), gem5::ArmISA::TableWalker::insertPartialTableEntry(), gem5::ArmISA::TableWalker::insertTableEntry(), gem5::ArmISA::TableWalker::walk(), and gem5::ArmISA::TableWalker::walkAddresses().

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

arch/arm/table_walker.hh
arch/arm/table_walker.cc

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ WalkerState()

Member Function Documentation

◆ doL1Descriptor()

◆ doL2Descriptor()

◆ doLongDescriptor()

◆ name()

Member Data Documentation

◆

◆ aarch64

◆ asid

◆ cpsr

◆ delayed

◆ el

◆ fault

◆ functional

◆ hcr

◆ hpd

◆ htcr

◆ isFetch

◆ isHyp

◆ isSecure

◆ isUncacheable

◆ isWrite

◆ l1Desc

◆ l2Desc

◆ levels

◆ longDesc

◆ mode

◆ physAddrRange

◆ pxnTable

◆ req

◆ rwTable

◆ scr

◆ sctlr

◆ secureLookup

◆ stage2Req

◆ stage2Tran

◆ startTime

◆ tableWalker

◆ tc

◆ tcr

◆ timing

◆ transState

◆ tranType

◆ ttbcr

◆ userTable

◆ vaddr

◆ vaddr_tainted

◆ vmid

◆ vtcr

◆ walkEntry

◆ xnTable