Changeset 92410 in vbox for trunk/src/VBox/VMM/VMMR3

Timestamp:

Nov 12, 2021 10:21:47 PM (3 years ago)

Author:

vboxsync

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

148265

Message:

VMM/PDM,PGM: Added PGMR3IsNemModeEnabled and made PDM not put devices in ring-0 when the simplified memory mode is active as it is implied that we won't be running anything from ring-0 (at least not on windows and mac, I think). PDM must use RTMemAllocZ instead of MMR3HeapAllocZEx for allocating device instance data to get proper alignment. bugref:10122

File:

• trunk/src/VBox/VMM/VMMR3/PDMDevice.cpp (modified) (1 diff)

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

@@ -279 +279 @@
         bool fRCEnabled = false;
         if (   (pReg->fFlags & (PDM_DEVREG_FLAGS_R0 | PDM_DEVREG_FLAGS_RC))
-            && !PGMR3IsNemModeEnabled(pVM) /* No ring-0 in simplified memory mode. */ )
+#ifdef VBOX_WITH_PGM_NEM_MODE
+            && !PGMR3IsNemModeEnabled(pVM) /* No ring-0 in simplified memory mode. */
+#endif
+           )
         {
             if (pReg->fFlags & PDM_DEVREG_FLAGS_R0)