Changeset 1291 in vbox

Timestamp:

Mar 7, 2007 9:11:47 AM (18 years ago)

Author:

vboxsync

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

19244

Message:

Removed forced exit hack. No longer required.

Location:

trunk/src/VBox/VMM

Files:

• HWACCM.cpp (modified) (1 diff)
• HWACCMInternal.h (modified) (1 diff)
• VMMR0/HWSVMR0.cpp (modified) (3 diffs)

trunk/src/VBox/VMM/HWACCM.cpp

@@ -194 +194 @@
     STAM_REG(pVM, &pVM->hwaccm.s.StatExitIrqWindow, STAMTYPE_COUNTER, "/HWACCM/Exit/GuestIrq/Pending",  STAMUNIT_OCCURENCES,    "Nr of occurances");
 
-    STAM_REG(pVM, &pVM->hwaccm.s.StatExitForced,    STAMTYPE_COUNTER, "/HWACCM/Exit/SVM/Forced",        STAMUNIT_OCCURENCES,    "Nr of forced exits");
-
     STAM_REG(pVM, &pVM->hwaccm.s.StatSwitchGuestIrq,STAMTYPE_COUNTER, "/HWACCM/Switch/IrqPending",      STAMUNIT_OCCURENCES,    "Nr of occurances");
     STAM_REG(pVM, &pVM->hwaccm.s.StatSwitchToR3,    STAMTYPE_COUNTER, "/HWACCM/Switch/ToR3",            STAMUNIT_OCCURENCES,    "Nr of occurances");

trunk/src/VBox/VMM/HWACCMInternal.h

@@ -279 +279 @@
     STAMCOUNTER             StatIntReinject;
     STAMCOUNTER             StatPendingHostIrq;
-    STAMCOUNTER             StatExitForced;
 
     STAMCOUNTER             StatSwitchGuestIrq;

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

@@ -515 +515 @@
     SVM_VMCB   *pVMCB;
     bool        fForceTLBFlush = false;
-    int         cResume = 0;
 
     STAM_PROFILE_ADV_START(&pVM->hwaccm.s.StatEntry, x);
@@ -525 +524 @@
      */
 ResumeExecution:
-    cResume++;
 
     /* Check for irq inhibition due to instruction fusing (sti, mov ss). */
@@ -821 +819 @@
             pVM->hwaccm.s.Event.errCode  = 0;
     }
-    /** @note Safety precaution; frequent loops have been observed even though external interrupts were pending. */
-    if (cResume > 32 /* low limit, but anything higher risks a hanging host due to interrupts left pending for too long */)
-    {
-        exitCode = SVM_EXIT_INTR;
-        STAM_COUNTER_INC(&pVM->hwaccm.s.StatExitForced);
-    }
-
     STAM_COUNTER_INC(&pVM->hwaccm.s.pStatExitReason[exitCode & MASK_EXITREASON_STAT]);