Changeset 52960 in vbox for trunk

Timestamp:

Oct 6, 2014 7:55:50 PM (10 years ago)

Author:

vboxsync

Message:

Runtime/memsafer-r3: Ignore calls to SUPR3PageProtect failing with VERR_INVALID_PARAMETER because of the way SUPR3PageAllocEx works on OS X

File:

• trunk/src/VBox/Runtime/r3/memsafer-r3.cpp (modified) (2 diffs)

trunk/src/VBox/Runtime/r3/memsafer-r3.cpp

@@ -288 +288 @@
          * Configure the guard pages.
          * SUPR3PageProtect isn't supported on all hosts, we ignore that.
+         * Additionally on darwin we cannot allocate pages without a R0 mapping and
+         * SUPR3PageAllocEx falls back to another method which is incompatible with
+         * the way SUPR3PageProtect works, it returns VERR_INVALID_PARAMETER. Ignore that case too.
          */
         rc = SUPR3PageProtect(pvPages, NIL_RTR0PTR, 0, PAGE_SIZE, RTMEM_PROT_NONE);
@@ -297 +300 @@
             SUPR3PageProtect(pvPages, NIL_RTR0PTR, 0, PAGE_SIZE, RTMEM_PROT_READ | RTMEM_PROT_WRITE);
         }
-        else if (rc == VERR_NOT_SUPPORTED)
+        else if (rc == VERR_NOT_SUPPORTED || rc == VERR_INVALID_PARAMETER)
             return VINF_SUCCESS;