Changeset 92246 in vbox for trunk/src/VBox/Runtime/r0drv/darwin

Timestamp:

Nov 6, 2021 3:10:49 AM (4 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

148086

Message:

IPRT/RTR0MemObj: Added RTR0MemObjWasZeroInitialized and a couple of flags with which the backend can feed it the necessary info. It would be good to try avoid zeroing memory twice when we can. bugref:10093

File:

• trunk/src/VBox/Runtime/r0drv/darwin/memobj-r0drv-darwin.cpp (modified) (1 diff)

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

@@ -744 +744 @@
                 if (pMemDarwin)
                 {
+                    if (fOptions & kIOMemoryKernelUserShared)
+                        pMemDarwin->Core.fFlags |= RTR0MEMOBJ_FLAGS_ZERO_AT_ALLOC;
+                    else
+                        pMemDarwin->Core.fFlags |= RTR0MEMOBJ_FLAGS_UNINITIALIZED_AT_ALLOC;
                     if (fContiguous)
                     {