Changeset 93617 in vbox for trunk/src/VBox/VMM/VMMR3/PGMPool.cpp

Timestamp:

Feb 6, 2022 8:35:16 AM (3 years ago)

Author:

vboxsync

Message:

VMM/PGMPool: Replaced MMR3HyperAllocOnceNoRel call with direct SUPR3PageAllocEx call, replacing a few associated MMHyperCCToR3/R0 calls with speedier pgmPoolConvertPageToR3/R0 ones. bugref:10093

File:

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

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

@@ -233 +233 @@
     cb += cMaxPhysExts * sizeof(PGMPOOLPHYSEXT);
     PPGMPOOL pPool;
-    rc = MMR3HyperAllocOnceNoRel(pVM, cb, 0, MM_TAG_PGM_POOL, (void **)&pPool);
+    RTR0PTR  pPoolR0;
+    rc = SUPR3PageAllocEx(RT_ALIGN_32(cb, HOST_PAGE_SIZE) >> HOST_PAGE_SHIFT, 0 /*fFlags*/, (void **)&pPool, &pPoolR0, NULL);
     if (RT_FAILURE(rc))
         return rc;
-    pVM->pgm.s.pPoolR3 = pPool;
-    pVM->pgm.s.pPoolR0 = MMHyperR3ToR0(pVM, pPool);
+    Assert(ASMMemIsZero(pPool, cb));
+    pVM->pgm.s.pPoolR3 = pPool->pPoolR3 = pPool;
+    pVM->pgm.s.pPoolR0 = pPool->pPoolR0 = pPoolR0;
 
     /*
@@ -250 +252 @@
     PPGMPOOLUSER paUsers = (PPGMPOOLUSER)&pPool->aPages[pPool->cMaxPages];
     pPool->paUsersR3 = paUsers;
-    pPool->paUsersR0 = MMHyperR3ToR0(pVM, paUsers);
+    pPool->paUsersR0 = pPoolR0 + (uintptr_t)paUsers - (uintptr_t)pPool;
     for (unsigned i = 0; i < cMaxUsers; i++)
     {
@@ -262 +264 @@
     PPGMPOOLPHYSEXT paPhysExts = (PPGMPOOLPHYSEXT)&paUsers[cMaxUsers];
     pPool->paPhysExtsR3 = paPhysExts;
-    pPool->paPhysExtsR0 = MMHyperR3ToR0(pVM, paPhysExts);
+    pPool->paPhysExtsR0 = pPoolR0 + (uintptr_t)paPhysExts - (uintptr_t)pPool;
     for (unsigned i = 0; i < cMaxPhysExts; i++)
     {