DECLEXPORT(EGLBoolean) eglReleaseThread()
{
struct VBEGLTLS *pTls = getTls();
if (!(pTls))
return EGL_TRUE;
RTMemFree(pTls);
RTTlsSet(g_tls, NULL);
return EGL_TRUE;
}
static struct VBEGLTLS *getTls(void)
{
struct VBEGLTLS *pTls;
RTOnce(&g_tlsOnce, tlsInitOnce, NULL);
pTls = (struct VBEGLTLS *)RTTlsGet(g_tls);
if (RT_LIKELY(pTls))
return pTls;
pTls = (struct VBEGLTLS *)RTMemAlloc(sizeof(*pTls));
if (!VALID_PTR(pTls))
return NULL;
pTls->cErr = EGL_SUCCESS;
pTls->enmAPI = EGL_NONE;
pTls->hCurrent = EGL_NO_CONTEXT;
pTls->hCurrentDisplay = EGL_NO_DISPLAY;
pTls->hCurrentDraw = EGL_NO_SURFACE;
pTls->hCurrentRead = EGL_NO_SURFACE;
RTTlsSet(g_tls, pTls);
return pTls;
}
/**
* 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;
}
/**
* Entry point.
*/
extern "C" DECLEXPORT(int) TrustedMain(int argc, char **argv, char **envp)
{
int rcRet = 0; /* error count */
RTR3InitExe(argc, &argv, RTR3INIT_FLAGS_SUPLIB);
PVM pVM;
PUVM pUVM;
int rc = VMR3Create(1, NULL, NULL, NULL, NULL, NULL, &pVM, &pUVM);
if (RT_SUCCESS(rc))
{
/*
* Little hack to avoid the VM_ASSERT_EMT assertion.
*/
RTTlsSet(pVM->pUVM->vm.s.idxTLS, &pVM->pUVM->aCpus[0]);
pVM->pUVM->aCpus[0].pUVM = pVM->pUVM;
pVM->pUVM->aCpus[0].vm.s.NativeThreadEMT = RTThreadNativeSelf();
rc = tstPDMACStressTestPatternInit();
if (RT_SUCCESS(rc))
{
unsigned cFilesOpened = 0;
/* Open the endpoints. */
for (cFilesOpened = 0; cFilesOpened < NR_OPEN_ENDPOINTS; cFilesOpened++)
{
rc = tstPDMACStressTestFileOpen(pVM, &g_aTestFiles[cFilesOpened], cFilesOpened);
if (RT_FAILURE(rc))
break;
}
if (RT_SUCCESS(rc))
{
/* Tests are running now. */
RTPrintf(TESTCASE ": Successfully opened all files. Running tests forever now or until an error is hit :)\n");
RTThreadSleep(RT_INDEFINITE_WAIT);
}
/* Close opened endpoints. */
for (unsigned i = 0; i < cFilesOpened; i++)
tstPDMACStressTestFileClose(&g_aTestFiles[i]);
tstPDMACStressTestPatternDestroy();
}
else
{
RTPrintf(TESTCASE ": failed to init test pattern!! rc=%Rrc\n", rc);
rcRet++;
}
rc = VMR3Destroy(pUVM);
AssertMsg(rc == VINF_SUCCESS, ("%s: Destroying VM failed rc=%Rrc!!\n", __FUNCTION__, rc));
}
else
{
RTPrintf(TESTCASE ": failed to create VM!! rc=%Rrc\n", rc);
rcRet++;
}
return rcRet;
}
/**
* Entry point.
*/
extern "C" DECLEXPORT(int) TrustedMain(int argc, char **argv, char **envp)
{
int rcRet = 0; /* error count */
PPDMASYNCCOMPLETIONENDPOINT pEndpointSrc, pEndpointDst;
RTR3InitExe(argc, &argv, RTR3INIT_FLAGS_SUPLIB);
if (argc != 3)
{
RTPrintf(TESTCASE ": Usage is ./tstPDMAsyncCompletion <source> <dest>\n");
return 1;
}
PVM pVM;
PUVM pUVM;
int rc = VMR3Create(1, NULL, NULL, NULL, NULL, NULL, &pVM, &pUVM);
if (RT_SUCCESS(rc))
{
/*
* Little hack to avoid the VM_ASSERT_EMT assertion.
*/
RTTlsSet(pVM->pUVM->vm.s.idxTLS, &pVM->pUVM->aCpus[0]);
pVM->pUVM->aCpus[0].pUVM = pVM->pUVM;
pVM->pUVM->aCpus[0].vm.s.NativeThreadEMT = RTThreadNativeSelf();
/*
* Create the template.
*/
PPDMASYNCCOMPLETIONTEMPLATE pTemplate;
rc = PDMR3AsyncCompletionTemplateCreateInternal(pVM, &pTemplate, AsyncTaskCompleted, NULL, "Test");
if (RT_FAILURE(rc))
{
RTPrintf(TESTCASE ": Error while creating the template!! rc=%d\n", rc);
return 1;
}
/*
* Create event semaphore.
*/
rc = RTSemEventCreate(&g_FinishedEventSem);
AssertRC(rc);
/*
* Create the temporary buffers.
*/
for (unsigned i=0; i < NR_TASKS; i++)
{
g_AsyncCompletionTasksBuffer[i] = (uint8_t *)RTMemAllocZ(BUFFER_SIZE);
if (!g_AsyncCompletionTasksBuffer[i])
{
RTPrintf(TESTCASE ": out of memory!\n");
return ++rcRet;
}
}
/* Create the destination as the async completion API can't do this. */
RTFILE FileTmp;
rc = RTFileOpen(&FileTmp, argv[2], RTFILE_O_READWRITE | RTFILE_O_OPEN_CREATE | RTFILE_O_DENY_NONE);
if (RT_FAILURE(rc))
{
RTPrintf(TESTCASE ": Error while creating the destination!! rc=%d\n", rc);
return ++rcRet;
}
RTFileClose(FileTmp);
/* Create our file endpoint */
rc = PDMR3AsyncCompletionEpCreateForFile(&pEndpointSrc, argv[1], 0, pTemplate);
if (RT_SUCCESS(rc))
{
rc = PDMR3AsyncCompletionEpCreateForFile(&pEndpointDst, argv[2], 0, pTemplate);
if (RT_SUCCESS(rc))
{
PDMR3PowerOn(pVM);
/* Wait for all threads to finish initialization. */
RTThreadSleep(100);
int fReadPass = true;
uint64_t cbSrc;
size_t offSrc = 0;
size_t offDst = 0;
uint32_t cTasksUsed = 0;
rc = PDMR3AsyncCompletionEpGetSize(pEndpointSrc, &cbSrc);
if (RT_SUCCESS(rc))
{
/* Copy the data. */
for (;;)
{
if (fReadPass)
{
cTasksUsed = (BUFFER_SIZE * NR_TASKS) <= (cbSrc - offSrc)
? NR_TASKS
: ((cbSrc - offSrc) / BUFFER_SIZE)
+ ((cbSrc - offSrc) % BUFFER_SIZE) > 0
? 1
: 0;
g_cTasksLeft = cTasksUsed;
for (uint32_t i = 0; i < cTasksUsed; i++)
{
size_t cbRead = ((size_t)offSrc + BUFFER_SIZE) <= cbSrc ? BUFFER_SIZE : cbSrc - offSrc;
RTSGSEG DataSeg;
DataSeg.pvSeg = g_AsyncCompletionTasksBuffer[i];
DataSeg.cbSeg = cbRead;
rc = PDMR3AsyncCompletionEpRead(pEndpointSrc, offSrc, &DataSeg, 1, cbRead, NULL,
&g_AsyncCompletionTasks[i]);
AssertRC(rc);
offSrc += cbRead;
if (offSrc == cbSrc)
break;
}
}
else
{
g_cTasksLeft = cTasksUsed;
for (uint32_t i = 0; i < cTasksUsed; i++)
{
size_t cbWrite = (offDst + BUFFER_SIZE) <= cbSrc ? BUFFER_SIZE : cbSrc - offDst;
RTSGSEG DataSeg;
DataSeg.pvSeg = g_AsyncCompletionTasksBuffer[i];
DataSeg.cbSeg = cbWrite;
rc = PDMR3AsyncCompletionEpWrite(pEndpointDst, offDst, &DataSeg, 1, cbWrite, NULL,
&g_AsyncCompletionTasks[i]);
AssertRC(rc);
offDst += cbWrite;
if (offDst == cbSrc)
break;
}
}
rc = RTSemEventWait(g_FinishedEventSem, RT_INDEFINITE_WAIT);
AssertRC(rc);
if (!fReadPass && (offDst == cbSrc))
break;
else if (fReadPass)
fReadPass = false;
else
{
cTasksUsed = 0;
fReadPass = true;
}
}
}
else
{
RTPrintf(TESTCASE ": Error querying size of the endpoint!! rc=%d\n", rc);
rcRet++;
}
PDMR3PowerOff(pVM);
PDMR3AsyncCompletionEpClose(pEndpointDst);
}
PDMR3AsyncCompletionEpClose(pEndpointSrc);
}
rc = VMR3Destroy(pUVM);
AssertMsg(rc == VINF_SUCCESS, ("%s: Destroying VM failed rc=%Rrc!!\n", __FUNCTION__, rc));
VMR3ReleaseUVM(pUVM);
/*
* Clean up.
*/
for (uint32_t i = 0; i < NR_TASKS; i++)
{
RTMemFree(g_AsyncCompletionTasksBuffer[i]);
}
}
else
{
RTPrintf(TESTCASE ": failed to create VM!! rc=%Rrc\n", rc);
rcRet++;
}
return rcRet;
}
