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sel4: capability overmap test

This commit is contained in:
Norman Feske 2015-02-10 16:28:52 +01:00 committed by Christian Helmuth
parent 418f2ab119
commit 37c266327f
2 changed files with 21 additions and 0 deletions
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7
repos/base-sel4/doc/ipc_and_virt_mem.txt
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@ -184,6 +184,13 @@ single RPC call.
That said, the simple capability-delegation test works as expected.
When repeatedly performing an IPC call with a delegated capability, the
RECV_CAP index will be populated by the first call. Subsequent attempts to
override the RECV_CAP capability do not work (the 'extraCaps' field of the
received message info remains 0). The receiver has to make sure that the
specified 'CapReceivePath' is an empty capability slot. I.e., by calling
'seL4_CNode_Delete' prior 'seL4_Wait'.
Translation of capabilities aka "unwrapping"
============================================

14
repos/base-sel4/src/test/sel4/main.cc
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@ -100,6 +100,9 @@ void second_thread_entry()
for (;;) {
seL4_SetCapReceivePath(seL4_CapInitThreadCNode, RECV_CAP, 32);
seL4_CNode_Delete(seL4_CapInitThreadCNode, RECV_CAP, 32);
PDBG("call seL4_Wait");
seL4_MessageInfo_t msg_info = seL4_Wait(EP_CAP, nullptr);
PDBG("returned from seL4_Wait, call seL4_Reply");
@ -241,6 +244,17 @@ int main()
PDBG("returned from seL4_Call");
}
PDBG("seL4_Call, delegating a TCB capability");
{
seL4_MessageInfo_t msg_info = seL4_MessageInfo_new(13, 0, 1, 0);
seL4_SetCap(0, SECOND_THREAD_CAP);
seL4_Call(EP_CAP, msg_info);
PDBG("returned from seL4_Call");
}
PDBG("seL4_Call, delegating a minted endpoint capability");
{
/* mint EP_CAP into EP_MINTED_CAP */