X64MappingMutationScope Class Reference

#include <VirtualAddressSpace-internal.h>

Collaboration diagram for X64MappingMutationScope:

Classes
struct	LockState

Public Member Functions
void	lock (Spinlock &lock)
void	unlock (Spinlock &lock)
void	relock (Spinlock &lock)
bool	invalidate (void *virtualAddress)
bool	failed () const
void	panicInvalidationFailure () NORETURN
void	panicWithoutRestoringInterrupts (const char *message) NORETURN

Private Member Functions
void	finish (bool restoreInterrupts)

Private Attributes
TlbInvalidationGuard	m_Invalidation
bool	m_RestoreInterrupts
LockState	m_Locks [2]
size_t	m_LockCount
TlbInvalidationResult	m_Result
bool	m_Coordinator
bool	m_Finished

Detailed Description

Keeps interrupts suppressed until every VAS lock and the mutation lease are retired. This ordering prevents terminal processor control from racing a stale PTE with either an IRQ callback or another mapper.

Definition at line 96 of file VirtualAddressSpace-internal.h.

Constructor & Destructor Documentation

X64MappingMutationScope()

X64MappingMutationScope::X64MappingMutationScope ( )

inline

Definition at line 98 of file VirtualAddressSpace-internal.h.

~X64MappingMutationScope()

X64MappingMutationScope::~X64MappingMutationScope ( )

inline

Definition at line 109 of file VirtualAddressSpace-internal.h.

Member Function Documentation

failed()

bool X64MappingMutationScope::failed ( ) const

inline

Definition at line 154 of file VirtualAddressSpace-internal.h.

finish()

void X64MappingMutationScope::finish ( bool  restoreInterrupts )

inlineprivate

Definition at line 182 of file VirtualAddressSpace-internal.h.

invalidate()

bool X64MappingMutationScope::invalidate ( void *  virtualAddress )

inline

Definition at line 144 of file VirtualAddressSpace-internal.h.

lock()

void X64MappingMutationScope::lock ( Spinlock &  lock )

inline

Definition at line 113 of file VirtualAddressSpace-internal.h.

panicInvalidationFailure()

void X64MappingMutationScope::panicInvalidationFailure ( )

inline

Definition at line 158 of file VirtualAddressSpace-internal.h.

panicWithoutRestoringInterrupts()

void X64MappingMutationScope::panicWithoutRestoringInterrupts ( const char *  message )

inline

Definition at line 171 of file VirtualAddressSpace-internal.h.

relock()

void X64MappingMutationScope::relock ( Spinlock &  lock )

inline

Definition at line 132 of file VirtualAddressSpace-internal.h.

unlock()

void X64MappingMutationScope::unlock ( Spinlock &  lock )

inline

Definition at line 120 of file VirtualAddressSpace-internal.h.

Member Data Documentation

m_Coordinator

bool X64MappingMutationScope::m_Coordinator

private

Definition at line 208 of file VirtualAddressSpace-internal.h.

m_Finished

bool X64MappingMutationScope::m_Finished

private

Definition at line 209 of file VirtualAddressSpace-internal.h.

m_Invalidation

TlbInvalidationGuard X64MappingMutationScope::m_Invalidation

private

Definition at line 203 of file VirtualAddressSpace-internal.h.

m_LockCount

size_t X64MappingMutationScope::m_LockCount

private

Definition at line 206 of file VirtualAddressSpace-internal.h.

m_Locks

LockState X64MappingMutationScope::m_Locks[2]

private

Definition at line 205 of file VirtualAddressSpace-internal.h.

m_RestoreInterrupts

bool X64MappingMutationScope::m_RestoreInterrupts

private

Definition at line 204 of file VirtualAddressSpace-internal.h.

m_Result

TlbInvalidationResult X64MappingMutationScope::m_Result

private

Definition at line 207 of file VirtualAddressSpace-internal.h.

---

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

• VirtualAddressSpace-internal.h