Changeset 100964 in vbox for trunk/src/VBox/VMM/VMMR3

Timestamp:

Aug 24, 2023 2:45:42 PM (20 months ago)

Author:

vboxsync

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

158905

Message:

VMM/PGM: Some experiments wrt preseving ZERO page status as the (windows) guest zero's all memory prior to use. bugref:6385 bugref:10509

File:

• trunk/src/VBox/VMM/VMMR3/PGM.cpp (modified) (3 diffs)

trunk/src/VBox/VMM/VMMR3/PGM.cpp

@@ -952 +952 @@
     AssertRelease(pVM->pgm.s.HCPhysZeroPg != NIL_RTHCPHYS);
     AssertRelease(pVM->pgm.s.HCPhysZeroPg != 0);
+    Log(("HCPhysZeroPg=%RHp abZeroPg=%p\n", pVM->pgm.s.HCPhysZeroPg, pVM->pgm.s.abZeroPg));
 
     /*
@@ -963 +964 @@
     AssertRelease(pVM->pgm.s.HCPhysMmioPg != 0);
     pVM->pgm.s.HCPhysInvMmioPg = pVM->pgm.s.HCPhysMmioPg;
+    Log(("HCPhysInvMmioPg=%RHp abMmioPg=%p\n", pVM->pgm.s.HCPhysMmioPg, pVM->pgm.s.abMmioPg));
 
     /*
@@ -1445 +1447 @@
         PGM_REG_PROFILE(&pCpuStats->StatRZTrap0eTime2OutOfSyncHndPhys, "/PGM/CPU%u/RZ/Trap0e/Time2/OutOfSyncHndPhys",  "Profiling of the Trap0eHandler body when the cause is an out-of-sync physical handler page.");
         PGM_REG_PROFILE(&pCpuStats->StatRZTrap0eTime2OutOfSyncHndObs,  "/PGM/CPU%u/RZ/Trap0e/Time2/OutOfSyncObsHnd",   "Profiling of the Trap0eHandler body when the cause is an obsolete handler page.");
+        PGM_REG_PROFILE(&pCpuStats->StatRZTrap0eTime2PageZeroing,      "/PGM/CPU%u/RZ/Trap0e/Time2/PageZeroing",       "Profiling of the Trap0eHandler body when the cause is that a zero page is being zeroed.");
         PGM_REG_PROFILE(&pCpuStats->StatRZTrap0eTime2SyncPT,           "/PGM/CPU%u/RZ/Trap0e/Time2/SyncPT",            "Profiling of the Trap0eHandler body when the cause is lazy syncing of a PT.");
         PGM_REG_PROFILE(&pCpuStats->StatRZTrap0eTime2WPEmulation,      "/PGM/CPU%u/RZ/Trap0e/Time2/WPEmulation",       "Profiling of the Trap0eHandler body when the cause is CR0.WP emulation.");