Changeset 14824 in vbox for trunk/src/VBox/Runtime/include

Timestamp:

Nov 30, 2008 7:52:59 AM (16 years ago)

Author:

vboxsync

Message:

IPRT: RTR0MemObjMapKernelEx for mapping a portion of a memory object into ring-0. Only implemented on darwin (where I had to switch back to use I/O kit to wire memory instead of vm_map_wire).

File:

• trunk/src/VBox/Runtime/include/internal/memobj.h (modified) (2 diffs)

trunk/src/VBox/Runtime/include/internal/memobj.h

@@ -380 +380 @@
  *
  * @returns IPRT status code.
+ * @retval  VERR_NOT_SUPPORTED see RTR0MemObjMapKernelEx.
+ *
  * @param   ppMem           Where to store the ring-0 memory object handle of the mapping object.
  * @param   pMemToMap       The object to be map.
@@ -385 +387 @@
  * @param   uAlignment      The alignment of the reserved memory; PAGE_SIZE, _2M or _4M.
  * @param   fProt           Combination of RTMEM_PROT_* flags (except RTMEM_PROT_NONE).
- */
-int rtR0MemObjNativeMapKernel(PPRTR0MEMOBJINTERNAL ppMem, PRTR0MEMOBJINTERNAL pMemToMap, void *pvFixed, size_t uAlignment, unsigned fProt);
+ * @param   offSub          Where in the object to start mapping. If non-zero
+ *                          the value must be page aligned and cbSub must be
+ *                          non-zero as well.
+ * @param   cbSub           The size of the part of the object to be mapped. If
+ *                          zero the entire object is mapped. The value must be
+ *                          page aligned.
+ */
+int rtR0MemObjNativeMapKernel(PPRTR0MEMOBJINTERNAL ppMem, RTR0MEMOBJ pMemToMap, void *pvFixed, size_t uAlignment,
+                              unsigned fProt, size_t offSub, size_t cbSub);
 
 /**