/**
* The emulation thread main function, with Virtual CPU ID for debugging.
*
* @returns Thread exit code.
* @param ThreadSelf The handle to the executing thread.
* @param pUVCpu Pointer to the user mode per-VCpu structure.
* @param idCpu The virtual CPU ID, for backtrace purposes.
*/
int vmR3EmulationThreadWithId(RTTHREAD ThreadSelf, PUVMCPU pUVCpu, VMCPUID idCpu)
{
PUVM pUVM = pUVCpu->pUVM;
int rc;
AssertReleaseMsg(VALID_PTR(pUVM) && pUVM->u32Magic == UVM_MAGIC,
("Invalid arguments to the emulation thread!\n"));
rc = RTTlsSet(pUVM->vm.s.idxTLS, pUVCpu);
AssertReleaseMsgRCReturn(rc, ("RTTlsSet %x failed with %Rrc\n", pUVM->vm.s.idxTLS, rc), rc);
if ( pUVM->pVmm2UserMethods
&& pUVM->pVmm2UserMethods->pfnNotifyEmtInit)
pUVM->pVmm2UserMethods->pfnNotifyEmtInit(pUVM->pVmm2UserMethods, pUVM, pUVCpu);
/*
* The request loop.
*/
rc = VINF_SUCCESS;
Log(("vmR3EmulationThread: Emulation thread starting the days work... Thread=%#x pUVM=%p\n", ThreadSelf, pUVM));
VMSTATE enmBefore = VMSTATE_CREATED; /* (only used for logging atm.) */
for (;;)
{
/*
* During early init there is no pVM, so make a special path
* for that to keep things clearly separate.
*/
if (!pUVM->pVM)
{
/*
* Check for termination first.
*/
if (pUVM->vm.s.fTerminateEMT)
{
rc = VINF_EM_TERMINATE;
break;
}
/*
* Only the first VCPU may initialize the VM during early init
* and must therefore service all VMCPUID_ANY requests.
* See also VMR3Create
*/
if ( (pUVM->vm.s.pNormalReqs || pUVM->vm.s.pPriorityReqs)
&& pUVCpu->idCpu == 0)
{
/*
* Service execute in any EMT request.
*/
rc = VMR3ReqProcessU(pUVM, VMCPUID_ANY, false /*fPriorityOnly*/);
Log(("vmR3EmulationThread: Req rc=%Rrc, VM state %s -> %s\n", rc, VMR3GetStateName(enmBefore), pUVM->pVM ? VMR3GetStateName(pUVM->pVM->enmVMState) : "CREATING"));
}
else if (pUVCpu->vm.s.pNormalReqs || pUVCpu->vm.s.pPriorityReqs)
{
/*
* Service execute in specific EMT request.
*/
rc = VMR3ReqProcessU(pUVM, pUVCpu->idCpu, false /*fPriorityOnly*/);
Log(("vmR3EmulationThread: Req (cpu=%u) rc=%Rrc, VM state %s -> %s\n", pUVCpu->idCpu, rc, VMR3GetStateName(enmBefore), pUVM->pVM ? VMR3GetStateName(pUVM->pVM->enmVMState) : "CREATING"));
}
else
{
/*
* Nothing important is pending, so wait for something.
*/
rc = VMR3WaitU(pUVCpu);
if (RT_FAILURE(rc))
{
AssertLogRelMsgFailed(("VMR3WaitU failed with %Rrc\n", rc));
break;
}
}
}
else
{
/*
* Pending requests which needs servicing?
*
* We check for state changes in addition to status codes when
* servicing requests. (Look after the ifs.)
*/
PVM pVM = pUVM->pVM;
enmBefore = pVM->enmVMState;
if (pUVM->vm.s.fTerminateEMT)
{
rc = VINF_EM_TERMINATE;
break;
}
if (VM_FF_ISPENDING(pVM, VM_FF_EMT_RENDEZVOUS))
{
rc = VMMR3EmtRendezvousFF(pVM, &pVM->aCpus[idCpu]);
Log(("vmR3EmulationThread: Rendezvous rc=%Rrc, VM state %s -> %s\n", rc, VMR3GetStateName(enmBefore), VMR3GetStateName(pVM->enmVMState)));
}
else if (pUVM->vm.s.pNormalReqs || pUVM->vm.s.pPriorityReqs)
{
/*
* Service execute in any EMT request.
*/
rc = VMR3ReqProcessU(pUVM, VMCPUID_ANY, false /*fPriorityOnly*/);
Log(("vmR3EmulationThread: Req rc=%Rrc, VM state %s -> %s\n", rc, VMR3GetStateName(enmBefore), VMR3GetStateName(pVM->enmVMState)));
}
else if (pUVCpu->vm.s.pNormalReqs || pUVCpu->vm.s.pPriorityReqs)
{
/*
* Service execute in specific EMT request.
*/
rc = VMR3ReqProcessU(pUVM, pUVCpu->idCpu, false /*fPriorityOnly*/);
Log(("vmR3EmulationThread: Req (cpu=%u) rc=%Rrc, VM state %s -> %s\n", pUVCpu->idCpu, rc, VMR3GetStateName(enmBefore), VMR3GetStateName(pVM->enmVMState)));
}
else if (VM_FF_ISSET(pVM, VM_FF_DBGF))
{
/*
* Service the debugger request.
*/
rc = DBGFR3VMMForcedAction(pVM);
Log(("vmR3EmulationThread: Dbg rc=%Rrc, VM state %s -> %s\n", rc, VMR3GetStateName(enmBefore), VMR3GetStateName(pVM->enmVMState)));
}
else if (VM_FF_TESTANDCLEAR(pVM, VM_FF_RESET))
{
/*
* Service a delayed reset request.
*/
rc = VMR3Reset(pVM);
VM_FF_CLEAR(pVM, VM_FF_RESET);
Log(("vmR3EmulationThread: Reset rc=%Rrc, VM state %s -> %s\n", rc, VMR3GetStateName(enmBefore), VMR3GetStateName(pVM->enmVMState)));
}
else
{
/*
* Nothing important is pending, so wait for something.
*/
rc = VMR3WaitU(pUVCpu);
if (RT_FAILURE(rc))
{
AssertLogRelMsgFailed(("VMR3WaitU failed with %Rrc\n", rc));
break;
}
}
/*
* Check for termination requests, these have extremely high priority.
*/
if ( rc == VINF_EM_TERMINATE
|| pUVM->vm.s.fTerminateEMT)
break;
}
/*
* Some requests (both VMR3Req* and the DBGF) can potentially resume
* or start the VM, in that case we'll get a change in VM status
* indicating that we're now running.
*/
if ( RT_SUCCESS(rc)
&& pUVM->pVM)
{
PVM pVM = pUVM->pVM;
PVMCPU pVCpu = &pVM->aCpus[idCpu];
if ( pVM->enmVMState == VMSTATE_RUNNING
&& VMCPUSTATE_IS_STARTED(VMCPU_GET_STATE(pVCpu)))
{
rc = EMR3ExecuteVM(pVM, pVCpu);
Log(("vmR3EmulationThread: EMR3ExecuteVM() -> rc=%Rrc, enmVMState=%d\n", rc, pVM->enmVMState));
if (EMGetState(pVCpu) == EMSTATE_GURU_MEDITATION)
vmR3SetGuruMeditation(pVM);
}
}
} /* forever */
/*
* Cleanup and exit.
*/
Log(("vmR3EmulationThread: Terminating emulation thread! Thread=%#x pUVM=%p rc=%Rrc enmBefore=%d enmVMState=%d\n",
ThreadSelf, pUVM, rc, enmBefore, pUVM->pVM ? pUVM->pVM->enmVMState : VMSTATE_TERMINATED));
if ( idCpu == 0
&& pUVM->pVM)
{
PVM pVM = pUVM->pVM;
vmR3SetTerminated(pVM);
pUVM->pVM = NULL;
/** @todo SMP: This isn't 100% safe. We should wait for the other
* threads to finish before destroy the VM. */
int rc2 = SUPR3CallVMMR0Ex(pVM->pVMR0, 0 /*idCpu*/, VMMR0_DO_GVMM_DESTROY_VM, 0, NULL);
AssertLogRelRC(rc2);
}
if ( pUVM->pVmm2UserMethods
&& pUVM->pVmm2UserMethods->pfnNotifyEmtTerm)
pUVM->pVmm2UserMethods->pfnNotifyEmtTerm(pUVM->pVmm2UserMethods, pUVM, pUVCpu);
pUVCpu->vm.s.NativeThreadEMT = NIL_RTNATIVETHREAD;
Log(("vmR3EmulationThread: EMT is terminated.\n"));
return rc;
}
Console::teleporterSrcThreadWrapper(RTTHREAD hThread, void *pvUser)
{
TeleporterStateSrc *pState = (TeleporterStateSrc *)pvUser;
/*
* Console::teleporterSrc does the work, we just grab onto the VM handle
* and do the cleanups afterwards.
*/
SafeVMPtr ptrVM(pState->mptrConsole);
HRESULT hrc = ptrVM.rc();
if (SUCCEEDED(hrc))
hrc = pState->mptrConsole->teleporterSrc(pState);
/* Close the connection ASAP on so that the other side can complete. */
if (pState->mhSocket != NIL_RTSOCKET)
{
RTTcpClientClose(pState->mhSocket);
pState->mhSocket = NIL_RTSOCKET;
}
/* Aaarg! setMachineState trashes error info on Windows, so we have to
complete things here on failure instead of right before cleanup. */
if (FAILED(hrc))
pState->mptrProgress->notifyComplete(hrc);
/* We can no longer be canceled (success), or it doesn't matter any longer (failure). */
pState->mptrProgress->setCancelCallback(NULL, NULL);
/*
* Write lock the console before resetting mptrCancelableProgress and
* fixing the state.
*/
AutoWriteLock autoLock(pState->mptrConsole COMMA_LOCKVAL_SRC_POS);
pState->mptrConsole->mptrCancelableProgress.setNull();
VMSTATE const enmVMState = VMR3GetStateU(pState->mpUVM);
MachineState_T const enmMachineState = pState->mptrConsole->mMachineState;
if (SUCCEEDED(hrc))
{
/*
* Automatically shut down the VM on success.
*
* Note! We have to release the VM caller object or we'll deadlock in
* powerDown.
*/
AssertLogRelMsg(enmVMState == VMSTATE_SUSPENDED, ("%s\n", VMR3GetStateName(enmVMState)));
AssertLogRelMsg(enmMachineState == MachineState_TeleportingPausedVM, ("%s\n", Global::stringifyMachineState(enmMachineState)));
ptrVM.release();
pState->mptrConsole->mVMIsAlreadyPoweringOff = true; /* (Make sure we stick in the TeleportingPausedVM state.) */
hrc = pState->mptrConsole->powerDown();
pState->mptrConsole->mVMIsAlreadyPoweringOff = false;
pState->mptrProgress->notifyComplete(hrc);
}
else
{
/*
* Work the state machinery on failure.
*
* If the state is no longer 'Teleporting*', some other operation has
* canceled us and there is nothing we need to do here. In all other
* cases, we've failed one way or another.
*/
if ( enmMachineState == MachineState_Teleporting
|| enmMachineState == MachineState_TeleportingPausedVM
)
{
if (pState->mfUnlockedMedia)
{
ErrorInfoKeeper Oak;
HRESULT hrc2 = pState->mptrConsole->mControl->LockMedia();
if (FAILED(hrc2))
{
uint64_t StartMS = RTTimeMilliTS();
do
{
RTThreadSleep(2);
hrc2 = pState->mptrConsole->mControl->LockMedia();
} while ( FAILED(hrc2)
&& RTTimeMilliTS() - StartMS < 2000);
}
if (SUCCEEDED(hrc2))
pState->mfUnlockedMedia = true;
else
LogRel(("FATAL ERROR: Failed to re-take the media locks. hrc2=%Rhrc\n", hrc2));
}
switch (enmVMState)
{
case VMSTATE_RUNNING:
case VMSTATE_RUNNING_LS:
case VMSTATE_DEBUGGING:
case VMSTATE_DEBUGGING_LS:
case VMSTATE_POWERING_OFF:
case VMSTATE_POWERING_OFF_LS:
case VMSTATE_RESETTING:
case VMSTATE_RESETTING_LS:
Assert(!pState->mfSuspendedByUs);
Assert(!pState->mfUnlockedMedia);
pState->mptrConsole->setMachineState(MachineState_Running);
break;
case VMSTATE_GURU_MEDITATION:
case VMSTATE_GURU_MEDITATION_LS:
pState->mptrConsole->setMachineState(MachineState_Stuck);
break;
case VMSTATE_FATAL_ERROR:
case VMSTATE_FATAL_ERROR_LS:
pState->mptrConsole->setMachineState(MachineState_Paused);
break;
default:
AssertMsgFailed(("%s\n", VMR3GetStateName(enmVMState)));
case VMSTATE_SUSPENDED:
case VMSTATE_SUSPENDED_LS:
case VMSTATE_SUSPENDING:
case VMSTATE_SUSPENDING_LS:
case VMSTATE_SUSPENDING_EXT_LS:
if (!pState->mfUnlockedMedia)
{
pState->mptrConsole->setMachineState(MachineState_Paused);
if (pState->mfSuspendedByUs)
{
autoLock.release();
int rc = VMR3Resume(VMR3GetVM(pState->mpUVM));
AssertLogRelMsgRC(rc, ("VMR3Resume -> %Rrc\n", rc));
autoLock.acquire();
}
}
else
{
/* Faking a guru meditation is the best I can think of doing here... */
pState->mptrConsole->setMachineState(MachineState_Stuck);
}
break;
}
}
}
autoLock.release();
/*
* Cleanup.
*/
Assert(pState->mhSocket == NIL_RTSOCKET);
delete pState;
return VINF_SUCCESS; /* ignored */
}
