Changeset 2009 in vbox for trunk/src/VBox

Timestamp:

Apr 10, 2007 2:19:40 PM (18 years ago)

Author:

vboxsync

Message:

Fixed segment limit calculation for expand-down segments.

File:

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

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

@@ -237 +237 @@
                 }
                 /* check limit. */
-                /** @todo check the manual on this!!! */
-                if ((RTGCUINTPTR)(Desc.Gen.u1Granularity ? 0xffffffff : 0xfffff) - (RTGCUINTPTR)Addr > u32Limit)
+                if (!Desc.Gen.u1Granularity && (RTGCUINTPTR)Addr > (RTGCUINTPTR)0xffff)
+                    return VERR_OUT_OF_SELECTOR_BOUNDS;
+                if ((RTGCUINTPTR)Addr <= u32Limit)
                     return VERR_OUT_OF_SELECTOR_BOUNDS;
 
@@ -245 +246 @@
                     *ppvGC = pvFlat;
                 if (pcb)
-                    *pcb = (Desc.Gen.u1Granularity ? 0xffffffff : 0xfffff) - (RTGCUINTPTR)Addr + 1;
+                    *pcb = (Desc.Gen.u1Granularity ? 0xffffffff : 0xffff) - (RTGCUINTPTR)Addr + 1;
                 return VINF_SUCCESS;