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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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1
include/l4/api/capability.h
View File

@@ -14,5 +14,6 @@
#define CAP_SHARE_SPACE 1
#define CAP_SHARE_CONTAINER 2
#define CAP_SHARE_GROUP 4
#define CAP_SHARE_PAGED 8 /* All that we are pager of */
#endif /* __API_CAPABILITY_H__ */

3
include/l4/api/thread.h
View File

@@ -9,7 +9,7 @@
#define THREAD_DESTROY 0x0004
#define THREAD_RECYCLE 0x0005
#define THREAD_CREATE_MASK 0x03F0
#define THREAD_CREATE_MASK 0x07F0
#define TC_SHARE_CAPS 0x0010 /* Share all thread capabilities */
#define TC_SHARE_UTCB 0x0020 /* Share utcb location (same space */
#define TC_SHARE_GROUP 0x0040 /* Share thread group id */
@@ -17,5 +17,6 @@
#define TC_COPY_SPACE 0x0100 /* New thread, copy given space */
#define TC_NEW_SPACE 0x0200 /* New thread, new space */
#define TC_SHARE_PAGER 0x0400 /* New thread, shared pager */
#define TC_AS_PAGER 0x0800 /* Set new thread as child */
#endif /* __THREAD_H__ */