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vm_remap_ro

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- allows shared memory to be mapped in readonly

- ben@minix3.org & tom@minix3.org
This commit is contained in:
Ben Gras
2011-11-28 19:05:50 +01:00
committed by Tomas Hruby
parent 88f990e122
commit 4668b84158
11 changed files with 72 additions and 12 deletions
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6
common/include/minix/com.h
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@@ -999,6 +999,7 @@
# define VMRE_SA m1_p2
# define VMRE_RETA m1_p3
# define VMRE_SIZE m1_i3
# define VMRE_FLAGS m1_i3
#define VM_SHM_UNMAP (VM_RQ_BASE+34)
# define VMUN_ENDPT m2_i1
@@ -1051,8 +1052,11 @@
#define VM_WATCH_EXIT (VM_RQ_BASE+43)
# define VM_WE_EP m1_i1
#define VM_REMAP_RO (VM_RQ_BASE+44)
/* same args as VM_REMAP */
/* Total. */
#define NR_VM_CALLS 44
#define NR_VM_CALLS 45
#define VM_CALL_MASK_SIZE BITMAP_CHUNKS(NR_VM_CALLS)
/* not handled as a normal VM call, thus at the end of the reserved rage */