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Lots of fixes, notion of pager hierarchy, fixed tgroup capability checking

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Notion of pager hierarchy introduced using the existing but unused
pagerid field.

Thread creation now has two more flags TC_AS_PAGER and TC_SHARE_PAGER.
The former sets creator as pager, the latter sets creator's pager as pager.

Thread group capability sharing now correctly carries shared capabilities
to the thread group leader's tgr_cap_list list, and this list is checked
during capability checking.
This commit is contained in:
Bahadir Balban
2009-10-23 02:36:12 +03:00
parent df776b568f
commit 89d49ef495
8 changed files with 44 additions and 15 deletions
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4
include/l4/generic/tcb.h
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@@ -60,10 +60,9 @@ struct ktcb {
struct link rq_list;
struct runqueue *rq;
/* Thread information */
/* Thread Id information (See space for space id) */
l4id_t tid; /* Global thread id */
l4id_t tgid; /* Global thread group id */
/* See space for space id */
/* Flags to indicate various task status */
unsigned int flags;
@@ -105,6 +104,7 @@ struct ktcb {
/* Capability lists */
struct cap_list cap_list;
struct cap_list tgr_cap_list;
struct cap_list pager_cap_list;
/* Fields for ipc rendezvous */
struct waitqueue_head wqh_recv;