Changeset 14824 in vbox for trunk/src/VBox/Runtime/r0drv/darwin/memobj-r0drv-darwin.cpp

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/r0drv/darwin/memobj-r0drv-darwin.cpp (modified) (3 diffs)

trunk/src/VBox/Runtime/r0drv/darwin/memobj-r0drv-darwin.cpp

@@ -44 +44 @@
 #include "internal/memobj.h"
 
-#define USE_VM_MAP_WIRE
+/*#define USE_VM_MAP_WIRE - may re-enable later when non-mapped allocations are added. */
 
 
@@ -542 +542 @@
 
 
-int rtR0MemObjNativeMapKernel(PPRTR0MEMOBJINTERNAL ppMem, RTR0MEMOBJ pMemToMap, void *pvFixed, size_t uAlignment, unsigned fProt)
+int rtR0MemObjNativeMapKernel(PPRTR0MEMOBJINTERNAL ppMem, RTR0MEMOBJ pMemToMap, void *pvFixed, size_t uAlignment,
+                              unsigned fProt, size_t offSub, size_t cbSub)
 {
     /*
@@ -549 +550 @@
     int rc = VERR_INVALID_PARAMETER;
     PRTR0MEMOBJDARWIN pMemToMapDarwin = (PRTR0MEMOBJDARWIN)pMemToMap;
+printf("rtR0MemObjNativeMapKernel: pMemDesc=%p\n", pMemToMapDarwin->pMemDesc);
     if (pMemToMapDarwin->pMemDesc)
     {
         IOMemoryMap *pMemMap = pMemToMapDarwin->pMemDesc->map(kernel_task, kIOMapAnywhere,
-                                                              kIOMapAnywhere | kIOMapDefaultCache);
+                                                              kIOMapAnywhere | kIOMapDefaultCache,
+                                                              offSub, cbSub);
         if (pMemMap)
         {