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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2009-11-28 17:37:54 +0100
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2009-11-28 17:37:54 +0100
commitd088a062c1dcbd5047a6bf41ccb2cb1da2c78060 (patch)
tree8754ffd902b553ca3e95486d3ee6fba4d3c2ec46 /i386
parent43347f8e5f17cf246d2199b4db5b899e8bb08557 (diff)
Add memory object proxies
Memory object proxies permit to replicate objects with different parameters, like reduced privileged, different offset, etc. They are e.g. essential for properly managing memory access permissions. 2005-06-06 Marcus Brinkmann <marcus@gnu.org> * include/mach/mach4.defs: Add memory_object_create_proxy interface. * Makefile.in (vm-cfiles): Add memory_object_proxy.c. * i386/include/mach/i386/vm_types.h (vm_offset_array_t): New type. * include/mach/memory_object.h (memory_object_array_t): New type. * vm/memory_object_proxy.c: New file. * kern/ipc_kobject.h: New macro IKOT_PAGER_PROXY. Bump up macros IKOT_UNKNOWN and IKOT_MAX_TYPE. * kern/ipc_kobject.c (ipc_kobject_notify): Call memory_object_proxy_notify for IKOT_PAGER_PROXY. * vm/vm_init.c (vm_mem_init): Call memory_object_proxy_init. * vm/vm_user.c (vm_map): Implement support for proxy memory objects.
Diffstat (limited to 'i386')
-rw-r--r--i386/include/mach/i386/vm_types.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/i386/include/mach/i386/vm_types.h b/i386/include/mach/i386/vm_types.h
index 7fb1bcb..d54008e 100644
--- a/i386/include/mach/i386/vm_types.h
+++ b/i386/include/mach/i386/vm_types.h
@@ -74,6 +74,7 @@ typedef unsigned int uint32;
* e.g. an offset into a virtual memory space.
*/
typedef natural_t vm_offset_t;
+typedef vm_offset_t * vm_offset_array_t;
/*
* A vm_size_t is the proper type for e.g.