Changeset 108676 in vbox for trunk/src/VBox/VMM/VMMAll/PGMAllPhys.cpp

Timestamp:

Mar 20, 2025 9:29:19 PM (7 weeks ago)

Author:

vboxsync

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

168089

Message:

VMM/PGM: Don't need the abZeroPg and abMmioPg page sized members if only NEM PGM mode is available, bugref:10391

File:

• trunk/src/VBox/VMM/VMMAll/PGMAllPhys.cpp (modified) (2 diffs)

trunk/src/VBox/VMM/VMMAll/PGMAllPhys.cpp

@@ -52 +52 @@
 #ifdef IN_RING3
 # include <iprt/thread.h>
+# ifdef VBOX_WITH_ONLY_PGM_NEM_MODE
+#  include <iprt/zero.h>
+# endif
 #elif defined(IN_RING0)
 # include <iprt/mem.h>
@@ -3003 +3006 @@
 #ifndef VBOX_WITH_ONLY_PGM_NEM_MODE
         AssertMsg(PGM_PAGE_GET_HCPHYS(pPage) == pVM->pgm.s.HCPhysZeroPg, ("%RGp/%R[pgmpage]\n", GCPhys, pPage));
-#endif
 #ifndef IN_RING0
         pTlbe->pMap = NULL;
 #endif
         pTlbe->pv = pVM->pgm.s.abZeroPg;
+#else
+        /*
+         * Should not ever be used, as we don't implement zero pages for NEM mode currently and
+         * MMIO accesses are not handled through the TLB.
+         */
+        pTlbe->pv = (void *)&g_abRTZero64K[0]; /* Maximum granule size on ARM. */
+#endif
     }
 #ifdef PGM_WITH_PHYS_TLB