Changeset 13755

Timestamp:

11/03/08 16:49:06 (2 months ago)

Author:

vboxsync

Message:

Started with VM request API changes.

Files:

• trunk/include/VBox/uvm.h (modified) (1 diff)
• trunk/include/VBox/vmapi.h (modified) (3 diffs)
• trunk/src/VBox/Frontends/VBoxBFE/DisplayImpl.cpp (modified) (1 diff)
• trunk/src/VBox/Frontends/VBoxBFE/HostUSBImpl.cpp (modified) (2 diffs)
• trunk/src/VBox/Frontends/VBoxBFE/MachineDebuggerImpl.cpp (modified) (2 diffs)
• trunk/src/VBox/Frontends/VBoxBFE/VBoxBFE.cpp (modified) (4 diffs)
• trunk/src/VBox/Frontends/VBoxBFE/VMControl.cpp (modified) (5 diffs)
• trunk/src/VBox/Main/ConsoleImpl.cpp (modified) (4 diffs)
• trunk/src/VBox/Main/DisplayImpl.cpp (modified) (6 diffs)
• trunk/src/VBox/Main/MachineDebuggerImpl.cpp (modified) (2 diffs)
• trunk/src/VBox/VMM/DBGF.cpp (modified) (1 diff)
• trunk/src/VBox/VMM/DBGFBp.cpp (modified) (7 diffs)
• trunk/src/VBox/VMM/DBGFInfo.cpp (modified) (4 diffs)
• trunk/src/VBox/VMM/DBGFLog.cpp (modified) (3 diffs)
• trunk/src/VBox/VMM/DBGFMem.cpp (modified) (3 diffs)
• trunk/src/VBox/VMM/DBGFOS.cpp (modified) (4 diffs)
• trunk/src/VBox/VMM/DBGFStack.cpp (modified) (2 diffs)
• trunk/src/VBox/VMM/PATM/CSAM.cpp (modified) (1 diff)
• trunk/src/VBox/VMM/PGMPhys.cpp (modified) (1 diff)
• trunk/src/VBox/VMM/PGMPool.cpp (modified) (1 diff)
• trunk/src/VBox/VMM/VM.cpp (modified) (15 diffs)
• trunk/src/VBox/VMM/VMInternal.h (modified) (1 diff)
• trunk/src/VBox/VMM/VMMAll/PDMAllQueue.cpp (modified) (1 diff)
• trunk/src/VBox/VMM/VMMAll/TMAllVirtual.cpp (modified) (1 diff)
• trunk/src/VBox/VMM/VMMAll/VMAll.cpp (modified) (2 diffs)
• trunk/src/VBox/VMM/VMReq.cpp (modified) (17 diffs)
• trunk/src/VBox/VMM/testcase/tstAnimate.cpp (modified) (3 diffs)
• trunk/src/VBox/VMM/testcase/tstMicro.cpp (modified) (1 diff)
• trunk/src/VBox/VMM/testcase/tstVMM-2.cpp (modified) (2 diffs)
• trunk/src/VBox/VMM/testcase/tstVMM-HwAccm.cpp (modified) (1 diff)
• trunk/src/VBox/VMM/testcase/tstVMM.cpp (modified) (1 diff)
• trunk/src/VBox/VMM/testcase/tstVMREQ.cpp (modified) (3 diffs)
• trunk/src/recompiler/VBoxREMWrapper.cpp (modified) (1 diff)
• trunk/src/recompiler/VBoxRecompiler.c (modified) (1 diff)
• trunk/src/recompiler_new/VBoxREMWrapper.cpp (modified) (1 diff)
• trunk/src/recompiler_new/VBoxRecompiler.c (modified) (1 diff)

trunk/include/VBox/uvm.h

@@ -42 +42 @@
-{
-    uint32_t     uFiller;
+    /** The VM internal data. */
+    struct
+    {
+#ifdef ___VMInternal_h
+        struct VMINTUSERPERVMCPU    s;
+#endif
+        uint8_t                     padding[768];
+    } vm;
-} UVMCPU;
-

trunk/include/VBox/vmapi.h

@@ -263 +263 @@
-    VMREQFLAGS_NO_WAIT      = 2
-} VMREQFLAGS;
+
+/**
+ * Request destination
+ */
+typedef enum VMREQDEST
+{
+    /** Request packet for VCPU 0. */
+    VMREQDEST_CPU0          = 0,
+
+    /** Request packet for the VM (any VCPU can handle it). */
+    VMREQDEST_ALL           = -1
+} VMREQDEST;
-
-/**
@@ -292 +304 @@
-    /** Request type. */
-    VMREQTYPE               enmType;
+    /** Request destination. */
+    VMREQDEST               enmDest;
-    /** Request specific data. */
-    union VMREQ_U
@@ -399 +413 @@
-VMMR3DECL(int)  VMR3AtRuntimeErrorDeregister(PVM pVM, PFNVMATRUNTIMEERROR pfnAtRuntimeError, void *pvUser);
-VMMR3DECL(void) VMR3SetRuntimeErrorWorker(PVM pVM);
-
-
-
-
-
-
-
-
+VMREQDEST enmDest, 
+VMREQDEST enmDest, 
+VMREQDEST enmDest, 
+VMREQDEST enmDest, 
+VMREQDEST enmDest, 
+VMREQDEST enmDest, 
+, VMREQDEST enmDest
+, VMREQDEST enmDest
-VMMR3DECL(int)  VMR3ReqFree(PVMREQ pReq);
-VMMR3DECL(int)  VMR3ReqQueue(PVMREQ pReq, unsigned cMillies);

trunk/src/VBox/Frontends/VBoxBFE/DisplayImpl.cpp

@@ -378 +378 @@
-    /* pdm.h says that this has to be called from the EMT thread */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-                                 (PFNRT)VMDisplay::doInvalidateAndUpdate, 1, mpDrv);
-    if (VBOX_SUCCESS(rcVBox))

trunk/src/VBox/Frontends/VBoxBFE/HostUSBImpl.cpp

@@ -244 +244 @@
-    LogFlowMember (("Console::AttachUSBDevice: Proxying USB device '%s' %Vuuid...\n", Address.c_str(), &Uuid));
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-                       (PFNRT)pRhConfig->pfnCreateProxyDevice,
-                       5, pRhConfig, &Uuid, fRemote,
@@ -303 +303 @@
-            LogFlowMember (("Console::DetachUSBDevice: Detaching USB proxy device %Vuuid...\n", &Uuid));
-            PVMREQ pReq;
-
+VMREQDEST_ALL, 
-                               2, pRhConfig, &Uuid);
-            if (VBOX_SUCCESS (vrc))

trunk/src/VBox/Frontends/VBoxBFE/MachineDebuggerImpl.cpp

@@ -138 +138 @@
-    PVMREQ pReq;
-    EMRAWMODE rawModeFlag = enable ? EMRAW_RING3_DISABLE : EMRAW_RING3_ENABLE;
-
+VMREQDEST_ALL, 
-                             (PFNRT)EMR3RawSetMode, 2, pVM, rawModeFlag);
-    if (VBOX_SUCCESS(rcVBox))
@@ -198 +198 @@
-    PVMREQ pReq;
-    EMRAWMODE rawModeFlag = enable ? EMRAW_RING0_DISABLE : EMRAW_RING0_ENABLE;
-
+VMREQDEST_ALL, 
-                             (PFNRT)EMR3RawSetMode, 2, pVM, rawModeFlag);
-    if (VBOX_SUCCESS(rcVBox))

trunk/src/VBox/Frontends/VBoxBFE/VBoxBFE.cpp

@@ -965 +965 @@
-            /* Power off VM */
-            PVMREQ pReq;
-
+VMREQDEST_ALL, 
-        }
-
@@ -1274 +1274 @@
-        {
-            startProgressInfo("Restoring");
-
+VMREQDEST_ALL, 
-                             (PFNRT)VMR3Load, 4, pVM, g_pszStateFile, &callProgressInfo, NULL);
-            endProgressInfo();
@@ -1280 +1280 @@
-            {
-                VMR3ReqFree(pReq);
-
+VMREQDEST_ALL, 
-                                 (PFNRT)VMR3Resume, 1, pVM);
-                if (VBOX_SUCCESS(rc))
@@ -1294 +1294 @@
-        else
-        {
-
+VMREQDEST_ALL, 
-            if (VBOX_SUCCESS(rc))
-            {

trunk/src/VBox/Frontends/VBoxBFE/VMControl.cpp

@@ -63 +63 @@
-
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-                             (PFNRT)VMR3Suspend, 1, pVM);
-    AssertRC(rcVBox);
@@ -84 +84 @@
-
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-                             (PFNRT)VMR3Resume, 1, pVM);
-    AssertRC(rcVBox);
@@ -102 +102 @@
-{
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-                             (PFNRT)VMR3Reset, 1, pVM);
-    AssertRC(rcVBox);
@@ -160 +160 @@
-
-    startProgressInfo("Saving");
-
+VMREQDEST_ALL, 
-                     (PFNRT)VMR3Save, 4, pVM, g_pszStateFile, &callProgressInfo, NULL);
-    endProgressInfo();
@@ -193 +193 @@
-    {
-        PVMREQ pReq;
-
+VMREQDEST_ALL, 
-                         (PFNRT)VMR3Suspend, 1, pVM);
-        AssertRC(rc);

trunk/src/VBox/Main/ConsoleImpl.cpp

@@ -2710 +2710 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-                           (PFNRT) Console::changeDrive, 8,
-                           this, pszDevice, uInstance, uLun, eState, peState,
@@ -5527 +5527 @@
-/** @todo just do everything here and only wrap the PDMR3Usb call. That'll offload some notification stuff from the EMT thread. */
-    PVMREQ pReq = NULL;
-
+VMREQDEST_ALL, 
-                           (PFNRT) usbAttachCallback, 6, this, aHostDevice, Uuid.ptr(), fRemote, Address.raw(), aMaskedIfs);
-    if (VBOX_SUCCESS (vrc))
@@ -5652 +5652 @@
-    PVMREQ pReq;
-/** @todo just do everything here and only wrap the PDMR3Usb call. That'll offload some notification stuff from the EMT thread. */
-
+VMREQDEST_ALL, 
-                           (PFNRT) usbDetachCallback, 4,
-                           this, &aIt, (*aIt)->id().raw());
@@ -7136 +7136 @@
-                 *  to access Console.
-                 */
-
+VMREQDEST_ALL, 
-                                       (PFNRT)reconfigureHardDisks, 3, that->mpVM,
-                                       atts [i], &rc);

trunk/src/VBox/Main/DisplayImpl.cpp

@@ -1348 +1348 @@
-        /* send request to the EMT thread */
-        PVMREQ pReq = NULL;
-
+VMREQDEST_ALL, 
-                               (PFNRT) changeFramebuffer, 4,
-                               this, static_cast <IFramebuffer *> (frameBuf),
@@ -1435 +1435 @@
-        /* send request to the EMT thread */
-        PVMREQ pReq = NULL;
-
+VMREQDEST_ALL, 
-                               (PFNRT) changeFramebuffer, 4,
-                               this, frameBuf, false /* aInternal */, VBOX_VIDEO_PRIMARY_SCREEN);
@@ -1476 +1476 @@
-        /* send request to the EMT thread */
-        PVMREQ pReq = NULL;
-
+VMREQDEST_ALL, 
-                               (PFNRT) changeFramebuffer, 4,
-                               this, aFramebuffer, false /* aInternal */, aScreenId);
@@ -1631 +1631 @@
-        PVMREQ pReq;
-        size_t cbData = RT_ALIGN_Z(width, 4) * 4 * height;
-
+VMREQDEST_ALL, 
-                             (PFNRT)mpDrv->pUpPort->pfnSnapshot, 6, mpDrv->pUpPort,
-                             address, cbData, NULL, NULL, NULL);
@@ -1692 +1692 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-                             (PFNRT)mpDrv->pUpPort->pfnDisplayBlt, 6, mpDrv->pUpPort,
-                             address, x, y, width, height);
@@ -1752 +1752 @@
-    /* pdm.h says that this has to be called from the EMT thread */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-                                 (PFNRT)mpDrv->pUpPort->pfnUpdateDisplayAll, 1, mpDrv->pUpPort);
-    if (VBOX_SUCCESS(rcVBox))

trunk/src/VBox/Main/MachineDebuggerImpl.cpp

@@ -244 +244 @@
-    PVMREQ pReq;
-    EMRAWMODE rawModeFlag = enable ? EMRAW_RING3_DISABLE : EMRAW_RING3_ENABLE;
-
+VMREQDEST_ALL, 
-                             (PFNRT)EMR3RawSetMode, 2, pVM.raw(), rawModeFlag);
-    if (VBOX_SUCCESS(rcVBox))
@@ -313 +313 @@
-    PVMREQ pReq;
-    EMRAWMODE rawModeFlag = enable ? EMRAW_RING0_DISABLE : EMRAW_RING0_ENABLE;
-
+VMREQDEST_ALL, 
-                             (PFNRT)EMR3RawSetMode, 2, pVM.raw(), rawModeFlag);
-    if (VBOX_SUCCESS(rcVBox))

trunk/src/VBox/VMM/DBGF.cpp

@@ -823 +823 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (RT_SUCCESS(rc))
-        rc = pReq->iStatus;

trunk/src/VBox/VMM/DBGFBp.cpp

@@ -288 +288 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_SUCCESS(rc))
-        rc = pReq->iStatus;
@@ -437 +437 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_SUCCESS(rc))
-        rc = pReq->iStatus;
@@ -602 +602 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_SUCCESS(rc))
-        rc = pReq->iStatus;
@@ -698 +698 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_SUCCESS(rc))
-        rc = pReq->iStatus;
@@ -775 +775 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_SUCCESS(rc))
-        rc = pReq->iStatus;
@@ -852 +852 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_SUCCESS(rc))
-        rc = pReq->iStatus;
@@ -928 +928 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_SUCCESS(rc))
-        rc = pReq->iStatus;

trunk/src/VBox/VMM/DBGFInfo.cpp

@@ -717 +717 @@
-            case DBGFINFOTYPE_DEV:
-                if (Info.fFlags & DBGFINFO_FLAGS_RUN_ON_EMT)
-
+VMREQDEST_ALL, 
-                else
-                    Info.u.Dev.pfnHandler(Info.u.Dev.pDevIns, pHlp, pszArgs);
@@ -724 +724 @@
-            case DBGFINFOTYPE_DRV:
-                if (Info.fFlags & DBGFINFO_FLAGS_RUN_ON_EMT)
-
+VMREQDEST_ALL, 
-                else
-                    Info.u.Drv.pfnHandler(Info.u.Drv.pDrvIns, pHlp, pszArgs);
@@ -731 +731 @@
-            case DBGFINFOTYPE_INT:
-                if (Info.fFlags & DBGFINFO_FLAGS_RUN_ON_EMT)
-
+VMREQDEST_ALL, 
-                else
-                    Info.u.Int.pfnHandler(pVM, pHlp, pszArgs);
@@ -738 +738 @@
-            case DBGFINFOTYPE_EXT:
-                if (Info.fFlags & DBGFINFO_FLAGS_RUN_ON_EMT)
-
+VMREQDEST_ALL, 
-                else
-                    Info.u.Ext.pfnHandler(Info.u.Ext.pvUser, pHlp, pszArgs);

trunk/src/VBox/VMM/DBGFLog.cpp

@@ -53 +53 @@
-
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_SUCCESS(rc))
-        rc = pReq->iStatus;
@@ -90 +90 @@
-
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_SUCCESS(rc))
-        rc = pReq->iStatus;
@@ -127 +127 @@
-
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_SUCCESS(rc))
-        rc = pReq->iStatus;

trunk/src/VBox/VMM/DBGFMem.cpp

@@ -113 +113 @@
-{
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-                         pVM, pAddress, cbRange, pabNeedle, cbNeedle, pHitAddress);
-    if (VBOX_SUCCESS(rc))
@@ -180 +180 @@
-{
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-                          pVM, pAddress, pvBuf, cbRead);
-    if (VBOX_SUCCESS(rc))
@@ -277 +277 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-                          pVM, pAddress, pszBuf, cchBuf);
-    if (VBOX_SUCCESS(rc))

trunk/src/VBox/VMM/DBGFOS.cpp

@@ -115 +115 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (RT_SUCCESS(rc))
-        rc = pReq->iStatus;
@@ -223 +223 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (RT_SUCCESS(rc))
-        rc = pReq->iStatus;
@@ -307 +307 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-                          5, pVM, pszName, cchName, pszVersion, cchVersion);
-    if (RT_SUCCESS(rc))
@@ -358 +358 @@
-    void *pvIf = NULL;
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    VMR3ReqFree(pReq);
-

trunk/src/VBox/VMM/DBGFStack.cpp

@@ -357 +357 @@
-
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-                         pVM, pFrame, CPUMGetGuestCtxCore(pVM), true);
-    if (VBOX_SUCCESS(rc))
@@ -388 +388 @@
-
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-                         pVM, pFrame, CPUMGetHyperCtxCore(pVM), 4);
-    if (VBOX_SUCCESS(rc))

trunk/src/VBox/VMM/PATM/CSAM.cpp

@@ -1955 +1955 @@
-        Log(("CSAMCodePageWriteHandler: delayed write!\n"));
-        AssertCompileSize(RTRCPTR, 4);
-
+VMREQDEST_ALL, 
-                           (PFNRT)CSAMDelayedWriteHandler, 3, pVM, (RTRCPTR)GCPtr, cbBuf);
-    }

trunk/src/VBox/VMM/PGMPhys.cpp

@@ -1975 +1975 @@
-        AssertMsg(!PDMCritSectIsOwner(&pVM->pgm.s.CritSect), ("We own the PGM lock -> deadlock danger!!\n"));
-
-
+VMREQDEST_ALL, 
-        if (VBOX_SUCCESS(rc))
-        {

trunk/src/VBox/VMM/PGMPool.cpp

@@ -546 +546 @@
-        if (!pPage->fReusedFlushPending)
-        {
-
+VMREQDEST_ALL, 
-            AssertRCReturn(rc, rc);
-            pPage->fReusedFlushPending = true;

trunk/src/VBox/VMM/VM.cpp

@@ -229 +229 @@
-             */
-            PVMREQ pReq;
-
+VMREQDEST_ALL, 
-                              4, pUVM, cCPUs, pfnCFGMConstructor, pvUserCFGM);
-            if (RT_SUCCESS(rc))
@@ -903 +903 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_SUCCESS(rc))
-    {
@@ -973 +973 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_SUCCESS(rc))
-    {
@@ -1060 +1060 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_SUCCESS(rc))
-    {
@@ -1141 +1141 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_SUCCESS(rc))
-    {
@@ -1236 +1236 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_SUCCESS(rc))
-    {
@@ -1325 +1325 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_SUCCESS(rc))
-    {
@@ -1495 +1495 @@
-         */
-        PVMREQ pReq = NULL;
-
+VMREQDEST_ALL, 
-        if (RT_SUCCESS(rc))
-            rc = pReq->iStatus;
@@ -1881 +1881 @@
-     */
-    PVMREQ pReq = NULL;
-
+VMREQDEST_ALL, 
-    while (rc == VERR_TIMEOUT)
-        rc = VMR3ReqWait(pReq, RT_INDEFINITE_WAIT);
@@ -2399 +2399 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_FAILURE(rc))
-        return rc;
@@ -2468 +2468 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_FAILURE(rc))
-        return rc;
@@ -2570 +2570 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_FAILURE(rc))
-        return rc;
@@ -2639 +2639 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_FAILURE(rc))
-        return rc;
@@ -2855 +2855 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_FAILURE(rc))
-        return rc;
@@ -2924 +2924 @@
-     */
-    PVMREQ pReq;
-
+VMREQDEST_ALL, 
-    if (VBOX_FAILURE(rc))
-        return rc;

trunk/src/VBox/VMM/VMInternal.h

@@ -413 +413 @@
-
-
+/**
+ * VMCPU internal data kept in the UVM.
+ *
+ * Almost a copy of VMINTUSERPERVM. Separate data properly later on.
+ */
+typedef struct VMINTUSERPERVMCPU
+{
+    /** Head of the request queue. Atomic. */
+    volatile PVMREQ                 pReqs;
+
+    /** The handle to the EMT thread. */
+    RTTHREAD                        ThreadEMT;
+    /** The native of the EMT thread. */
+    RTNATIVETHREAD                  NativeThreadEMT;
+    /** Wait event semaphore. */
+    RTSEMEVENT                      EventSemWait;
+    /** Wait/Idle indicator. */
+    bool volatile                   fWait;
+    /** Force EMT to terminate. */
+    bool volatile                   fTerminateEMT;
+    /** If set the EMT does the final VM cleanup when it exits.
+     * If clear the VMR3Destroy() caller does so. */
+    bool                            fEMTDoesTheCleanup;
+
+    /** @name Generic Halt data
+     * @{
+     */
+    /** The current halt method.
+     * Can be selected by CFGM option 'VM/HaltMethod'. */
+    VMHALTMETHOD                    enmHaltMethod;
+    /** The index into g_aHaltMethods of the current halt method. */
+    uint32_t volatile               iHaltMethod;
+    /** The average time (ns) between two halts in the last second. (updated once per second) */
+    uint32_t                        HaltInterval;
+    /** The average halt frequency for the last second. (updated once per second) */
+    uint32_t                        HaltFrequency;
+    /** The number of halts in the current period. */
+    uint32_t                        cHalts;
+    uint32_t                        padding; /**< alignment padding. */
+    /** When we started counting halts in cHalts (RTTimeNanoTS). */
+    uint64_t                        u64HaltsStartTS;
+    /** @} */
+
+    /** Union containing data and config for the different halt algorithms. */
+    union
+    {
+       /**
+        * Method 1 & 2 - Block whenever possible, and when lagging behind
+        * switch to spinning with regular blocking every 5-200ms (defaults)
+        * depending on the accumulated lag. The blocking interval is adjusted
+        * with the average oversleeping of the last 64 times.
+        *
+        * The difference between 1 and 2 is that we use native absolute
+        * time APIs for the blocking instead of the millisecond based IPRT
+        * interface.
+        */
+        struct
+        {
+            /** How many times we've blocked while cBlockedNS and cBlockedTooLongNS has been accumulating. */
+            uint32_t                cBlocks;
+            /** Avg. time spend oversleeping when blocking. (Re-calculated every so often.) */
+            uint64_t                cNSBlockedTooLongAvg;
+            /** Total time spend oversleeping when blocking. */
+            uint64_t                cNSBlockedTooLong;
+            /** Total time spent blocking. */
+            uint64_t                cNSBlocked;
+            /** The timestamp (RTTimeNanoTS) of the last block. */
+            uint64_t                u64LastBlockTS;
+
+            /** When we started spinning relentlessly in order to catch up some of the oversleeping.
+             * This is 0 when we're not spinning. */
+            uint64_t                u64StartSpinTS;
+
+            /** The max interval without blocking (when spinning). */
+            uint32_t                u32MinBlockIntervalCfg;
+            /** The minimum interval between blocking (when spinning). */
+            uint32_t                u32MaxBlockIntervalCfg;
+            /** The value to divide the current lag by to get the raw blocking interval (when spinning). */
+            uint32_t                u32LagBlockIntervalDivisorCfg;
+            /** When to start spinning (lag / nano secs). */
+            uint32_t                u32StartSpinningCfg;
+            /** When to stop spinning (lag / nano secs). */
+            uint32_t                u32StopSpinningCfg;
+        }                           Method12;
+
+#if 0
+       /**
+        * Method 3 & 4 - Same as method 1 & 2 respectivly, except that we
+        * sprinkle it with yields.
+        */
+       struct
+       {
+           /** How many times we've blocked while cBlockedNS and cBlockedTooLongNS has been accumulating. */
+           uint32_t                 cBlocks;
+           /** Avg. time spend oversleeping when blocking. (Re-calculated every so often.) */
+           uint64_t                 cBlockedTooLongNSAvg;
+           /** Total time spend oversleeping when blocking. */
+           uint64_t                 cBlockedTooLongNS;
+           /** Total time spent blocking. */
+           uint64_t                 cBlockedNS;
+           /** The timestamp (RTTimeNanoTS) of the last block. */
+           uint64_t                 u64LastBlockTS;
+
+           /** How many times we've yielded while cBlockedNS and cBlockedTooLongNS has been accumulating. */
+           uint32_t                 cYields;
+           /** Avg. time spend oversleeping when yielding. */
+           uint32_t                 cYieldTooLongNSAvg;
+           /** Total time spend oversleeping when yielding. */
+           uint64_t                 cYieldTooLongNS;
+           /** Total time spent yielding. */