[ros-kernel] MmMapLockedPages patch review

[Filip Navara]

KJK::Hyperion wrote:

> MmMapLockedPages(UserMode) maps resident kernel memory into the 
> user-mode address space (references: the PROCESS_HAS_LOCKED_PAGES and 
> DRIVER_LEFT_LOCKED_PAGES_IN_PROCESS bugcheck codes, and 
> <http://www.osr.com/ntinsider/2000/sharing_memory.htm>), and this 
> appears to do exactly the opposite

Based on this article I wrote very simple test program+driver that sends 
"Hello Word" from kernel to user program using the MmMapLockedPages 
method. It can be usefull for testing.

NOTE 1: Under Windows it works only first time, there is propably some 
bug in the driver unloading....
NOTE 2: Under ReactOS there isn't Service Manager implemented, so the 
driver must be added directly to registry. In the archive is an example 
of these registry entries.

- Filip
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