Currently, the tid returned from kernel contains container id as
well, which makes it sufficient to do inter-container syscalls without
any preparation.
The helpers added are for presentation purposes only. Container id
is deleted so that the raw thread id is available for printing or
similar.
Thread ids now contain their container ids in the top 2 nibbles.
Threads on other containers can be addressed by changing those
two nibbles. The addressing of inter-container threads are
subject to capabilities.
Task ids are now unsigned as the container ids will need to be encoded
in the id fields as well.
For requests who require even more comprehensive id input, (such as
thread creation) also added is the container id so that threads
_could_ potentially be created in other containers as well.
Removed dependency on hard-coded pager id. Pager id is now passed
as an environment string `pagerid' to tasks. Alternatively, this
could take space in the utcb of each task.
- Need to remove old versions
- Need to merge the two.
- Need to investigate occasional page fault on NMOP sequence. (resembles an error ipc_extended test)
Could be related to new page cache read/write routines.
