Changeset 91b60499 in mainline for kernel/generic/include/ipc/irq.h

Timestamp:

2017-09-30T06:29:42Z (7 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

300f4c4

Parents:

d076f16 (diff), 6636fb19 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge support for capabilities from lp:~jakub/helenos/caps

This commit introduces capabilities as task-local names for references to kernel
objects. Kernel objects are reference-counted wrappers for a select group of
objects allocated in and by the kernel that can be made accessible to userspace
in a controlled way via integer handles.

So far, a kernel object encapsulates either an irq_t or a phone_t.

Support for the former lead to the removal of kernel-assigned devnos and
unsecure deregistration of IRQs in which a random task was able to unregister
some other task's IRQ.

File:

• kernel/generic/include/ipc/irq.h (modified) (1 diff)

kernel/generic/include/ipc/irq.h

@@ -47 +47 @@
 #include <adt/list.h>
 
-extern int ipc_irq_subscribe(answerbox_t *, inr_t, devno_t, sysarg_t,
-    irq_code_t *);
 
 extern irq_ownership_t ipc_irq_top_half_claim(irq_t *);
 extern void ipc_irq_top_half_handler(irq_t *);
 
-extern int ipc_irq_unsubscribe(answerbox_t *, inr_t, devno_t);
-extern void ipc_irq_cleanup(answerbox_t *);
+extern int ipc_irq_subscribe(answerbox_t *, inr_t, sysarg_t, irq_code_t *);
+extern int ipc_irq_unsubscribe(answerbox_t *, int);
 
 /*