Changeset 27580 in vbox

Timestamp:

Mar 22, 2010 10:35:52 AM (15 years ago)

Author:

vboxsync

Message:

Ignore writes to ballooned pages.

File:

• trunk/src/VBox/VMM/VMMAll/PGMAllPhys.cpp (modified) (4 diffs)

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

@@ -53 +53 @@
 
 #ifndef IN_RING3
-
-/**
- * \#PF Handler callback for physical memory accesses without a RC/R0 handler.
- * This simply pushes everything to the HC handler.
- *
- * @returns VBox status code (appropritate for trap handling and GC return).
- * @param   pVM         VM Handle.
- * @param   uErrorCode  CPU Error code.
- * @param   pRegFrame   Trap register frame.
- * @param   pvFault     The fault address (cr2).
- * @param   GCPhysFault The GC physical address corresponding to pvFault.
- * @param   pvUser      User argument.
- */
-VMMDECL(int) pgmPhysHandlerRedirectToHC(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, RTGCPHYS GCPhysFault, void *pvUser)
-{
-    return (uErrorCode & X86_TRAP_PF_RW) ? VINF_IOM_HC_MMIO_WRITE : VINF_IOM_HC_MMIO_READ;
-}
-
 
 /**
@@ -1267 +1249 @@
         /*
          * If the page is shared, the zero page, or being write monitored
-         * it must be converted to an page that's writable if possible.
+         * it must be converted to a page that's writable if possible.
          */
         PPGMPAGE pPage = pTlbe->pPage;
@@ -2368 +2350 @@
  * Write to physical memory.
  *
- * This API respects access handlers and MMIO. Use PGMPhysSimpleReadGCPhys() if you
+ * This API respects access handlers and MMIO. Use PGMPhysSimpleWriteGCPhys() if you
  * want to ignore those.
  *
@@ -2437 +2419 @@
                         memcpy(pvDst, pvBuf, cb);
                     else
+                    /* Ignore writes to ballooned pages. */
+                    if (!PGM_PAGE_IS_BALLOONED(pPage))
                         AssertLogRelMsgFailed(("pgmPhysGCPhys2CCPtrInternal failed on %RGp / %R[pgmpage] -> %Rrc\n",
-                                               pRam->GCPhys + off, pPage, rc));
+                                                pRam->GCPhys + off, pPage, rc));
                 }