#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...

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

uint8_t	vmid

bool	isHyp

TLB::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...

TLB::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...

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

TLB::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 691 of file table_walker.hh.

Constructor & Destructor Documentation

◆ WalkerState()

TableWalker::WalkerState::WalkerState ( )

Definition at line 130 of file table_walker.cc.

Referenced by ArmISA::TableWalker::walk().

Member Function Documentation

◆ doL1Descriptor()

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

Referenced by ArmISA::TableWalker::doL1DescriptorWrapper().

◆ doL2Descriptor()

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

Referenced by ArmISA::TableWalker::doL2DescriptorWrapper().

◆ doLongDescriptor()

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

Referenced by ArmISA::TableWalker::doLongDescriptorWrapper().

◆ name()

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

inline

Definition at line 817 of file table_walker.hh.

References SimObject::name().

Referenced by ArmISA::TableWalker::regStats().

Member Data Documentation

◆ @9

union { ... }

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

◆ aarch64

bool ArmISA::TableWalker::WalkerState::aarch64

If the access is performed in AArch64 state.

Definition at line 698 of file table_walker.hh.

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

◆ asid

uint16_t ArmISA::TableWalker::WalkerState::asid

ASID that we're servicing the request under.

Definition at line 710 of file table_walker.hh.

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

◆ cpsr

CPSR ArmISA::TableWalker::WalkerState::cpsr

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

Definition at line 733 of file table_walker.hh.

◆ delayed

bool ArmISA::TableWalker::WalkerState::delayed

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

Definition at line 800 of file table_walker.hh.

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

◆ el

ExceptionLevel ArmISA::TableWalker::WalkerState::el

Current exception level.

Definition at line 701 of file table_walker.hh.

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

◆ fault

Fault ArmISA::TableWalker::WalkerState::fault

The fault that we are going to return.

Definition at line 718 of file table_walker.hh.

Referenced by ArmISA::TableWalker::doL1Descriptor(), ArmISA::TableWalker::doL1DescriptorWrapper(), ArmISA::TableWalker::doL2Descriptor(), ArmISA::TableWalker::doL2DescriptorWrapper(), ArmISA::TableWalker::doLongDescriptor(), ArmISA::TableWalker::doLongDescriptorWrapper(), ArmISA::TableWalker::fetchDescriptor(), ArmISA::TableWalker::processWalk(), ArmISA::TableWalker::processWalkAArch64(), ArmISA::TableWalker::processWalkLPAE(), and ArmISA::TableWalker::walk().

◆ functional

bool ArmISA::TableWalker::WalkerState::functional

If the atomic mode should be functional.

Definition at line 783 of file table_walker.hh.

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

◆ hcr

HCR ArmISA::TableWalker::WalkerState::hcr

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

Definition at line 745 of file table_walker.hh.

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

◆ hpd

bool ArmISA::TableWalker::WalkerState::hpd

Hierarchical access permission disable.

Definition at line 771 of file table_walker.hh.

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

◆ htcr

HTCR ArmISA::TableWalker::WalkerState::htcr

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

Definition at line 742 of file table_walker.hh.

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

◆ isFetch

bool ArmISA::TableWalker::WalkerState::isFetch

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

Definition at line 754 of file table_walker.hh.

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

◆ isHyp

bool ArmISA::TableWalker::WalkerState::isHyp

Definition at line 712 of file table_walker.hh.

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

◆ isSecure

bool ArmISA::TableWalker::WalkerState::isSecure

If the access comes from the secure state.

Definition at line 757 of file table_walker.hh.

Referenced by ArmISA::TableWalker::doL1Descriptor(), ArmISA::TableWalker::LongDescriptor::global(), ArmISA::TableWalker::insertTableEntry(), ArmISA::TableWalker::memAttrs(), ArmISA::TableWalker::memAttrsLPAE(), ArmISA::TableWalker::processWalk(), ArmISA::TableWalker::processWalkAArch64(), ArmISA::TableWalker::processWalkLPAE(), ArmISA::TableWalker::processWalkWrapper(), ArmISA::TableWalker::testWalk(), and ArmISA::TableWalker::walk().

◆ isUncacheable

bool ArmISA::TableWalker::WalkerState::isUncacheable

True if table walks are uncacheable (for table descriptors)

Definition at line 760 of file table_walker.hh.

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

◆ isWrite

bool ArmISA::TableWalker::WalkerState::isWrite

If the access is a write.

Definition at line 751 of file table_walker.hh.

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

◆ l1Desc

L1Descriptor ArmISA::TableWalker::WalkerState::l1Desc

Short-format descriptors.

Definition at line 792 of file table_walker.hh.

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

◆ l2Desc

L2Descriptor ArmISA::TableWalker::WalkerState::l2Desc

Definition at line 793 of file table_walker.hh.

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

◆ levels

unsigned ArmISA::TableWalker::WalkerState::levels

Page entries walked during service (for stats)

Definition at line 808 of file table_walker.hh.

◆ longDesc

LongDescriptor ArmISA::TableWalker::WalkerState::longDesc

Long-format descriptor (LPAE and AArch64)

Definition at line 796 of file table_walker.hh.

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

◆ mode

BaseTLB::Mode ArmISA::TableWalker::WalkerState::mode

Save mode for use in delayed response.

Definition at line 786 of file table_walker.hh.

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

◆ physAddrRange

int ArmISA::TableWalker::WalkerState::physAddrRange

Current physical address range in bits.

Definition at line 704 of file table_walker.hh.

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

◆ pxnTable

bool ArmISA::TableWalker::WalkerState::pxnTable

Definition at line 768 of file table_walker.hh.

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

◆ req

RequestPtr ArmISA::TableWalker::WalkerState::req

Request that is currently being serviced.

Definition at line 707 of file table_walker.hh.

◆ rwTable

bool ArmISA::TableWalker::WalkerState::rwTable

Definition at line 765 of file table_walker.hh.

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

◆ scr

SCR ArmISA::TableWalker::WalkerState::scr

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

Definition at line 730 of file table_walker.hh.

◆ sctlr

SCTLR ArmISA::TableWalker::WalkerState::sctlr

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

Definition at line 727 of file table_walker.hh.

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

◆ secureLookup

bool ArmISA::TableWalker::WalkerState::secureLookup

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

format is used (LPAE only)

Definition at line 764 of file table_walker.hh.

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

◆ stage2Req

bool ArmISA::TableWalker::WalkerState::stage2Req

Flag indicating if a second stage of lookup is required.

Definition at line 774 of file table_walker.hh.

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

◆ stage2Tran

TLB::Translation* ArmISA::TableWalker::WalkerState::stage2Tran

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

Definition at line 777 of file table_walker.hh.

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

◆ startTime

Tick ArmISA::TableWalker::WalkerState::startTime

Timestamp for calculating elapsed time in service (for stats)

Definition at line 805 of file table_walker.hh.

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

◆ tableWalker

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

Definition at line 802 of file table_walker.hh.

Referenced by ArmISA::TableWalker::walk().

◆ tc

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

Thread context that we're doing the walk for.

Definition at line 695 of file table_walker.hh.

◆ tcr

TCR ArmISA::TableWalker::WalkerState::tcr

Definition at line 738 of file table_walker.hh.

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

◆ timing

bool ArmISA::TableWalker::WalkerState::timing

If the mode is timing or atomic.

Definition at line 780 of file table_walker.hh.

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

◆ transState

TLB::Translation* ArmISA::TableWalker::WalkerState::transState

Translation state for delayed requests.

Definition at line 715 of file table_walker.hh.

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

◆ tranType

TLB::ArmTranslationType ArmISA::TableWalker::WalkerState::tranType

The translation type that has been requested.

Definition at line 789 of file table_walker.hh.

Referenced by ArmISA::TableWalker::walk().

◆ ttbcr

TTBCR ArmISA::TableWalker::WalkerState::ttbcr

Definition at line 737 of file table_walker.hh.

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

◆ userTable

bool ArmISA::TableWalker::WalkerState::userTable

Definition at line 766 of file table_walker.hh.

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

◆ vaddr

Addr ArmISA::TableWalker::WalkerState::vaddr

The virtual address that is being translated with tagging removed.

Definition at line 721 of file table_walker.hh.

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

◆ vaddr_tainted

Addr ArmISA::TableWalker::WalkerState::vaddr_tainted

The virtual address that is being translated.

Definition at line 724 of file table_walker.hh.

◆ vmid

uint8_t ArmISA::TableWalker::WalkerState::vmid

Definition at line 711 of file table_walker.hh.

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

◆ vtcr

VTCR_t ArmISA::TableWalker::WalkerState::vtcr

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

Definition at line 748 of file table_walker.hh.

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

◆ xnTable

bool ArmISA::TableWalker::WalkerState::xnTable

Definition at line 767 of file table_walker.hh.

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

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

◆ @9

◆ 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

◆ xnTable