Changeset 108708 in vbox for trunk/src/VBox/VMM/VMMAll/IOMAllMmioNew.cpp

Timestamp:

Mar 24, 2025 9:16:43 AM (3 weeks ago)

Author:

vboxsync

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

168125

Message:

VMM: Introduce VMM_HOST_PAGE_SIZE_DYNAMIC, HOST_PAGE_SIZE_DYNAMIC, and HOST_PAGE_SHIFT_DYNAMIC, bugref:10391

HOST_PAGE_SIZE_DYNAMIC either resolves to HOST_PAGE_SIZE or calls RTSystemGetPageSize() on hosts where
the system page size is not known during build time (linux.arm64 for now).
HOST_PAGE_SHIFT_DYNAMIC is the same for the page shift.

This allows building VMM libraries which are agnostic to the host page size (at the cost of a slightly
larger overhead).

Currently enabled only on linux.arm64

File:

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

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

@@ -1003 +1003 @@
          */
 #ifdef IN_RING3
-        AssertMsg(rcStrict == VINF_SUCCESS, ("%Rrc -  Access type %d - %RGp - %s\n",
+        AssertMsg(   rcStrict == VINF_SUCCESS
+                  || rcStrict == VINF_EM_DBG_STEP, ("%Rrc -  Access type %d - %RGp - %s\n",
                                              VBOXSTRICTRC_VAL(rcStrict), enmAccessType, GCPhysFault, pRegEntry->pszDesc));
 #else
@@ -1320 +1321 @@
             rc = PGMShwGetPage(pVCpu, (RTGCPTR)GCPhys, &fFlags, &HCPhys);
             Assert(rc == VERR_PAGE_NOT_PRESENT || rc == VERR_PAGE_TABLE_NOT_PRESENT);
-            cb     -= RT_MIN(GUEST_PAGE_SIZE, HOST_PAGE_SIZE);
-            GCPhys += RT_MIN(GUEST_PAGE_SIZE, HOST_PAGE_SIZE);
+            cb     -= RT_MIN(GUEST_PAGE_SIZE, HOST_PAGE_SIZE_DYNAMIC);
+            GCPhys += RT_MIN(GUEST_PAGE_SIZE, HOST_PAGE_SIZE_DYNAMIC);
         }
     }