thread_context.cc File Reference

#include "cpu/thread_context.hh"
#include "arch/kernel_stats.hh"
#include "base/misc.hh"
#include "base/trace.hh"
#include "config/the_isa.hh"
#include "cpu/base.hh"
#include "cpu/quiesce_event.hh"
#include "debug/Context.hh"
#include "debug/Quiesce.hh"
#include "params/BaseCPU.hh"
#include "sim/full_system.hh"

Go to the source code of this file.

Functions
void	serialize (ThreadContext &tc, CheckpointOut &cp)
	Thread context serialization helpers. More...
void	unserialize (ThreadContext &tc, CheckpointIn &cp)
void	takeOverFrom (ThreadContext &ntc, ThreadContext &otc)
	Copy state between thread contexts in preparation for CPU handover. More...

Function Documentation

void serialize	(	ThreadContext &	tc,
		CheckpointOut &	cp
	)

Thread context serialization helpers.

These helper functions provide a way to the data in a ThreadContext. They are provided as separate helper function since implementing them as members of the ThreadContext interface would be confusing when the ThreadContext is exported via a proxy.

Definition at line 144 of file thread_context.cc.

References arrayParamOut(), ArmISA::i, AlphaISA::NumCCRegs, AlphaISA::NumFloatRegs, AlphaISA::NumIntRegs, ThreadContext::pcState(), ThreadContext::readCCRegFlat(), ThreadContext::readFloatRegBitsFlat(), ThreadContext::readIntRegFlat(), and SERIALIZE_ARRAY.

void takeOverFrom	(	ThreadContext &	new_tc,
		ThreadContext &	old_tc
	)

Copy state between thread contexts in preparation for CPU handover.

Note

This method modifies the old thread contexts as well as the new thread context. The old thread context will have its quiesce event descheduled if it is scheduled and its status set to halted.

Parameters

new_tc	Destination ThreadContext.
old_tc	Source ThreadContext.

Definition at line 204 of file thread_context.cc.

References ThreadContext::contextId(), ThreadContext::copyArchRegs(), FullSystem, ThreadContext::getCpuPtr(), ThreadContext::getProcessPtr(), ThreadContext::getQuiesceEvent(), ThreadContext::getSystemPtr(), ThreadContext::Halted, ThreadContext::setContextId(), ThreadContext::setStatus(), ThreadContext::setThreadId(), ThreadContext::status(), and ThreadContext::threadId().

Referenced by BaseKvmCPU::takeOverFrom(), O3ThreadContext< class >::takeOverFrom(), MinorCPU::takeOverFrom(), AtomicSimpleCPU::takeOverFrom(), TimingSimpleCPU::takeOverFrom(), and FullO3CPU< Impl >::takeOverFrom().

void unserialize	(	ThreadContext &	tc,
		CheckpointIn &	cp
	)

Definition at line 173 of file thread_context.cc.

References arrayParamIn(), ArmISA::i, AlphaISA::NumCCRegs, AlphaISA::NumFloatRegs, AlphaISA::NumIntRegs, ThreadContext::pcState(), ThreadContext::setCCRegFlat(), ThreadContext::setFloatRegBitsFlat(), ThreadContext::setIntRegFlat(), and UNSERIALIZE_ARRAY.