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Capability replicate/split/destroy/grant working for test0 ipc.

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Implemented a protocol between a client and its pager to
request and get a capability to ipc to another client of the pager.

Pager first ensures the request is valid from its client.
It then tries to use a greater capability that it possesses, to
produce a new capability that the client requested. Once the kernel
validates the correct one and replicates/reduces it to client's
need, it grants it to the client.
This commit is contained in:
Bahadir Balban
2009-11-09 00:40:07 +02:00
parent 1bb2c05c9b
commit b24c8eb89d
7 changed files with 195 additions and 78 deletions
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include/l4/api/capability.h
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@@ -14,6 +14,7 @@
#define CAP_CONTROL_REPLICATE 0x00000005
#define CAP_CONTROL_SPLIT 0x00000006
#define CAP_CONTROL_DEDUCE 0x00000007
#define CAP_CONTROL_DESTROY 0x00000008
#define CAP_SHARE_MASK 0x00000003
#define CAP_SHARE_SINGLE 0x00000001