Changeset 23374 in vbox for trunk/src/VBox/VMM/VMMAll

Timestamp:

Sep 28, 2009 12:53:55 PM (16 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

52898

Message:

PGMPool: Moved pgmR3PoolClearAll to from VMMAll to PGMPool.cpp.

File:

• trunk/src/VBox/VMM/VMMAll/PGMAllPool.cpp (modified) (1 diff)

trunk/src/VBox/VMM/VMMAll/PGMAllPool.cpp

@@ -2549 +2549 @@
 }
 
-#ifdef IN_RING3
-
-/**
- * Rendezvous callback used by pgmR3PoolClearAll that clears all shadow pages
- * and all modification counters.
- *
- * This is only called on one of the EMTs while the other ones are waiting for
- * it to complete this function.
- *
- * @returns VINF_SUCCESS (VBox strict status code).
- * @param   pVM     The VM handle.
- * @param   pVCpu   The VMCPU for the EMT we're being called on. Unused.
- * @param   pvUser  Unused parameter.
- *
- * @remark  Should only be used when monitoring is available, thus placed in
- *          the PGMPOOL_WITH_MONITORING \#ifdef.
- * @remark  Too expensive for use in R0/RC, but it remains here because of
- *          dependencies?
- */
-static DECLCALLBACK(VBOXSTRICTRC) pgmR3PoolClearAllRendezvous(PVM pVM, PVMCPU pVCpu, void *pvUser)
-{
-    PPGMPOOL pPool = pVM->pgm.s.CTX_SUFF(pPool);
-    STAM_PROFILE_START(&pPool->StatClearAll, c);
-    LogFlow(("pgmPoolClearAllDoIt: cUsedPages=%d\n", pPool->cUsedPages));
-
-    pgmLock(pVM);
-
-#ifdef PGMPOOL_WITH_OPTIMIZED_DIRTY_PT
-    pgmPoolResetDirtyPages(pVM);
-#endif
-
-    /*
-     * Iterate all the pages until we've encountered all that are in use.
-     * This is simple but not quite optimal solution.
-     */
-    unsigned cModifiedPages = 0; NOREF(cModifiedPages);
-    unsigned cLeft = pPool->cUsedPages;
-    unsigned iPage = pPool->cCurPages;
-    while (--iPage >= PGMPOOL_IDX_FIRST)
-    {
-        PPGMPOOLPAGE pPage = &pPool->aPages[iPage];
-        if (pPage->GCPhys != NIL_RTGCPHYS)
-        {
-            switch (pPage->enmKind)
-            {
-                /*
-                 * We only care about shadow page tables.
-                 */
-                case PGMPOOLKIND_32BIT_PT_FOR_32BIT_PT:
-                case PGMPOOLKIND_32BIT_PT_FOR_32BIT_4MB:
-                case PGMPOOLKIND_PAE_PT_FOR_32BIT_PT:
-                case PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB:
-                case PGMPOOLKIND_PAE_PT_FOR_PAE_PT:
-                case PGMPOOLKIND_PAE_PT_FOR_PAE_2MB:
-                case PGMPOOLKIND_32BIT_PT_FOR_PHYS:
-                case PGMPOOLKIND_PAE_PT_FOR_PHYS:
-                {
-#ifdef PGMPOOL_WITH_USER_TRACKING
-                    if (pPage->cPresent)
-#endif
-                    {
-                        void *pvShw = PGMPOOL_PAGE_2_PTR(pPool->CTX_SUFF(pVM), pPage);
-                        STAM_PROFILE_START(&pPool->StatZeroPage, z);
-                        ASMMemZeroPage(pvShw);
-                        STAM_PROFILE_STOP(&pPool->StatZeroPage, z);
-#ifdef PGMPOOL_WITH_USER_TRACKING
-                        pPage->cPresent = 0;
-                        pPage->iFirstPresent = NIL_PGMPOOL_PRESENT_INDEX;
-#endif
-                    }
-#ifdef PGMPOOL_WITH_OPTIMIZED_DIRTY_PT
-                    else
-                        Assert(!pPage->fDirty);
-#endif
-                }
-                /* fall thru */
-
-                default:
-#ifdef PGMPOOL_WITH_OPTIMIZED_DIRTY_PT
-                    Assert(!pPage->fDirty);
-#endif
-                    Assert(!pPage->cModifications || ++cModifiedPages);
-                    Assert(pPage->iModifiedNext == NIL_PGMPOOL_IDX || pPage->cModifications);
-                    Assert(pPage->iModifiedPrev == NIL_PGMPOOL_IDX || pPage->cModifications);
-                    pPage->iModifiedNext = NIL_PGMPOOL_IDX;
-                    pPage->iModifiedPrev = NIL_PGMPOOL_IDX;
-                    pPage->cModifications = 0;
-                    break;
-
-            }
-            if (!--cLeft)
-                break;
-        }
-    }
-
-    /* swipe the special pages too. */
-    for (iPage = PGMPOOL_IDX_FIRST_SPECIAL; iPage < PGMPOOL_IDX_FIRST; iPage++)
-    {
-        PPGMPOOLPAGE pPage = &pPool->aPages[iPage];
-        if (pPage->GCPhys != NIL_RTGCPHYS)
-        {
-            Assert(!pPage->cModifications || ++cModifiedPages);
-            Assert(pPage->iModifiedNext == NIL_PGMPOOL_IDX || pPage->cModifications);
-            Assert(pPage->iModifiedPrev == NIL_PGMPOOL_IDX || pPage->cModifications);
-            pPage->iModifiedNext = NIL_PGMPOOL_IDX;
-            pPage->iModifiedPrev = NIL_PGMPOOL_IDX;
-            pPage->cModifications = 0;
-        }
-    }
-
-#ifndef DEBUG_michael
-    AssertMsg(cModifiedPages == pPool->cModifiedPages, ("%d != %d\n", cModifiedPages, pPool->cModifiedPages));
-#endif
-    pPool->iModifiedHead = NIL_PGMPOOL_IDX;
-    pPool->cModifiedPages = 0;
-
-#ifdef PGMPOOL_WITH_GCPHYS_TRACKING
-    /*
-     * Clear all the GCPhys links and rebuild the phys ext free list.
-     */
-    for (PPGMRAMRANGE pRam = pPool->CTX_SUFF(pVM)->pgm.s.CTX_SUFF(pRamRanges);
-         pRam;
-         pRam = pRam->CTX_SUFF(pNext))
-    {
-        unsigned iPage = pRam->cb >> PAGE_SHIFT;
-        while (iPage-- > 0)
-            PGM_PAGE_SET_TRACKING(&pRam->aPages[iPage], 0);
-    }
-
-    pPool->iPhysExtFreeHead = 0;
-    PPGMPOOLPHYSEXT paPhysExts = pPool->CTX_SUFF(paPhysExts);
-    const unsigned cMaxPhysExts = pPool->cMaxPhysExts;
-    for (unsigned i = 0; i < cMaxPhysExts; i++)
-    {
-        paPhysExts[i].iNext = i + 1;
-        paPhysExts[i].aidx[0] = NIL_PGMPOOL_IDX;
-        paPhysExts[i].aidx[1] = NIL_PGMPOOL_IDX;
-        paPhysExts[i].aidx[2] = NIL_PGMPOOL_IDX;
-    }
-    paPhysExts[cMaxPhysExts - 1].iNext = NIL_PGMPOOL_PHYSEXT_INDEX;
-#endif
-
-#ifdef PGMPOOL_WITH_OPTIMIZED_DIRTY_PT
-    /* Clear all dirty pages. */
-    pPool->idxFreeDirtyPage = 0;
-    pPool->cDirtyPages      = 0;
-    for (unsigned i = 0; i < RT_ELEMENTS(pPool->aIdxDirtyPages); i++)
-        pPool->aIdxDirtyPages[i] = NIL_PGMPOOL_IDX;
-#endif
-
-    /* Clear the PGM_SYNC_CLEAR_PGM_POOL flag on all VCPUs to prevent redundant flushes. */
-    for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
-    {
-        PVMCPU pVCpu = &pVM->aCpus[idCpu];
-        pVCpu->pgm.s.fSyncFlags &= ~PGM_SYNC_CLEAR_PGM_POOL;
-    }
-
-    pPool->cPresent = 0;
-    pgmUnlock(pVM);
-    PGM_INVL_ALL_VCPU_TLBS(pVM);
-    STAM_PROFILE_STOP(&pPool->StatClearAll, c);
-    return VINF_SUCCESS;
-}
-
-
-/**
- * Clears the shadow page pool.
- *
- * @param   pVM         The VM handle.
- */
-void pgmR3PoolClearAll(PVM pVM)
-{
-    int rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE, pgmR3PoolClearAllRendezvous, NULL);
-    AssertRC(rc);
-}
-
-#endif /* IN_RING3 */
 
 /**