Changeset 92391 in vbox for trunk/src/VBox/VMM/VMMR3

Timestamp:

Nov 12, 2021 9:47:48 AM (3 years ago)

Author:

vboxsync

Message:

VMM/PGM,GMM: Made pgmR0PhysAllocateHandyPages & GMMR0AllocateHandyPages callable from ring-0 HM context, eliminating the need for the call-ring-3 fun. bugref:10093

Location:

trunk/src/VBox/VMM/VMMR3

Files:

• PGMPhys.cpp (modified) (1 diff)
• VMM.cpp (modified) (3 diffs)

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

@@ -5815 +5815 @@
 
 /**
- * Response to VM_FF_PGM_NEED_HANDY_PAGES and VMMCALLRING3_PGM_ALLOCATE_HANDY_PAGES.
+ * Response to VM_FF_PGM_NEED_HANDY_PAGES and helper for pgmPhysEnsureHandyPage.
  *
  * This function will also work the VM_FF_PGM_NO_MEMORY force action flag, to
- * signal and clear the out of memory condition. When contracted, this API is
- * used to try clear the condition when the user wants to resume.
+ * signal and clear the out of memory condition.  When called, this API is used
+ * to try clear the condition when the user wants to resume.
  *
  * @returns The following VBox status codes.

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

@@ -430 +430 @@
     STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchTPR,            STAMTYPE_COUNTER, "/VMM/RZRet/PatchTPR",            STAMUNIT_OCCURENCES, "Number of VINF_EM_HM_PATCH_TPR_INSTR returns.");
     STAM_REG(pVM, &pVM->vmm.s.StatRZRetCallRing3,           STAMTYPE_COUNTER, "/VMM/RZCallR3/Misc",             STAMUNIT_OCCURENCES, "Number of Other ring-3 calls.");
-    STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMAllocHandy,      STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMAllocHandy",    STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PGM_ALLOCATE_HANDY_PAGES calls.");
 
     STAMR3Register(pVM, &pVM->vmm.s.StatLogFlusherFlushes,  STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, "/VMM/LogFlush/00-Flushes",  STAMUNIT_OCCURENCES, "Total number of buffer flushes");
@@ -2500 +2499 @@
     {
         /*
-         * Allocates more handy pages.
-         */
-        case VMMCALLRING3_PGM_ALLOCATE_HANDY_PAGES:
-        {
-            pVCpu->vmm.s.rcCallRing3 = PGMR3PhysAllocateHandyPages(pVM);
-            break;
-        }
-
-        /*
          * Signal a ring 0 hypervisor assertion.
          * Cancel the longjmp operation that's in progress.
@@ -2531 +2521 @@
             return VERR_VMM_UNKNOWN_RING3_CALL;
     }
-
-    pVCpu->vmm.s.enmCallRing3Operation = VMMCALLRING3_INVALID;
-    return VINF_SUCCESS;
 }