Changeset 100970 in vbox for trunk/src/VBox/VMM/VMMR3

Timestamp:

Aug 25, 2023 1:05:20 PM (17 months ago)

Author:

vboxsync

Message:

VMM/IEM: Flush IEM physical page TLB info from PGMR3PhysRomProtect. bugref:10369

File:

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

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

@@ -4969 +4969 @@
 VMMR3DECL(int) PGMR3PhysRomProtect(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, PGMROMPROT enmProt)
 {
+    LogFlow(("PGMR3PhysRomProtect: GCPhys=%RGp cb=%RGp enmProt=%d\n", GCPhys, cb, enmProt));
+
     /*
      * Check input
@@ -5056 +5058 @@
 
             /*
-             * Reset the access handler if we made changes, no need
-             * to optimize this.
+             * Reset the access handler if we made changes, no need to optimize this.
              */
             if (fChanges)
@@ -5068 +5069 @@
                     return rc2;
                 }
+
+                /* Explicitly flush IEM. Not sure if this is really necessary, but better
+                   be on the safe side.  This shouldn't be a high volume flush source. */
+                IEMTlbInvalidateAllPhysicalAllCpus(pVM, NIL_VMCPUID, IEMTLBPHYSFLUSHREASON_ROM_PROTECT);
             }