Changeset 13251 in vbox

Timestamp:

Oct 14, 2008 12:07:13 PM (16 years ago)

Author:

vboxsync

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

37862

Message:

Stats for forced TLB flushes by physical page invalidation.

Location:

trunk/src/VBox/VMM

Files:

• HWACCM.cpp (modified) (1 diff)
• HWACCMInternal.h (modified) (1 diff)
• VMMR0/HWSVMR0.cpp (modified) (1 diff)

trunk/src/VBox/VMM/HWACCM.cpp

@@ -159 +159 @@
     STAM_REG(pVM, &pVM->hwaccm.s.StatNoFlushTLBWorldSwitch, STAMTYPE_COUNTER, "/HWACCM/Flush/TLB/Skipped", STAMUNIT_OCCURENCES,    "Nr of occurances");
     STAM_REG(pVM, &pVM->hwaccm.s.StatFlushASID,             STAMTYPE_COUNTER, "/HWACCM/Flush/TLB/ASID",    STAMUNIT_OCCURENCES,    "Nr of occurances");
+    STAM_REG(pVM, &pVM->hwaccm.s.StatFlushTLBInvlpga,       STAMTYPE_COUNTER, "/HWACCM/Flush/TLB/PhysInvlpg",  STAMUNIT_OCCURENCES,    "Nr of occurances");
 
     STAM_REG(pVM, &pVM->hwaccm.s.StatTSCOffset,             STAMTYPE_COUNTER, "/HWACCM/TSC/Offset",        STAMUNIT_OCCURENCES,    "Nr of occurances");

trunk/src/VBox/VMM/HWACCMInternal.h

@@ -498 +498 @@
     STAMCOUNTER             StatFlushTLBCRxChange;
     STAMCOUNTER             StatFlushASID;
+    STAMCOUNTER             StatFlushTLBInvlpga;
 
     STAMCOUNTER             StatSwitchGuestIrq;

trunk/src/VBox/VMM/VMMR0/HWSVMR0.cpp

@@ -2220 +2220 @@
     Assert(pVM->hwaccm.s.fNestedPaging);
     /* invlpga only invalidates TLB entries for guest virtual addresses; we have no choice but to force a TLB flush here. */
-    pVM->hwaccm.s.fForceTLBFlush = true;   
+    pVM->hwaccm.s.fForceTLBFlush = true;
+    STAM_COUNTER_INC(&pVM->hwaccm.s.StatFlushTLBInvlpga);
     return VINF_SUCCESS;
 }