Do not return from fork() until mcctrl side has created mckernel's
procfs entries for the child PID.
This fixes programs doing fork() immediately followed by opening
/proc/<child pid>/something, and would get some error
Refs: #1189
Change-Id: Ie10ea56b65c55f59e96a1ab6ef83a1070e36048d
For get_user_pages_remote in binfmt_mcexec.c:
In 4.10 with 5b56d49fc31d ("mm: add locked parameter to
get_user_pages_remote()")
In 4.9 with 9beae1ea8930 ("mm: replace get_user_pages_remote()
write/force parameters with gup_flags")
For vmf in syscall.c, these two patches in 4.10:
82b0f8c39a38 ("mm: join struct fault_env and vm_fault")
1a29d85eb0f1 ("mm: use vmf->address instead of
vmf->virtual_address")
Fujitsu: POSTK_DEBUG_ARCH_DEP_41
Change-Id: I89a02d03169a2162ea186da1804bf48910446d11
user_space/swapout/swapout_copy_to_01.sh:
* Use ~/.mck_test_config
* Fix checking if McKernel version is written in swap-file
user_space/futex/futex_test.sh:
* Use ~/.mck_test_config
user_space/perf_event_open/perf_event_open_test.sh
* Use ~/.mck_test_config
Change-Id: Id93b207ed0e3e9ebf307073db81b40335bc5b140
Add new file with common functions for tests to use.
- loads config file
- checks for mcexec etc
- checks for LTP and OSTEST if required
- handle mcstop / mcreboot if required, and provide function for it
At the same time, make a few changes to mck_test_config:
- move to ~/.mck_test_config
- add boot params to the config, tests the require specific params can
overwite it
- make the config "set-if-variable-is-empty", so someone can overwrite
any param by setting the environment value e.g. LTP=.... ./test.sh
will use the value given
Change-Id: Ib04112043e3eb89615dc7afaa8842a98571fab93
This includes the following fix:
send_syscall, do_syscall: remove argument pid
Fujitsu: POSTK_TEMP_FIX_26
Refs: #1165
Change-Id: I702362c07a28f507a5e43dd751949aefa24bc8c0
We had a deadlock between:
- free_process_memory_range (take lock) -> ihk_mc_pt_free_range ->
... -> remote_flush_tlb_array_cpumask -> "/* Wait for all cores */"
and
- obj_list_lookup() under fileobj_list_lock that disabled irqs
and thus never ack'd the remote flush
The rework is quite big but removes the need for the big lock,
although devobj and shmobj needed a new smaller lock to be
introduced - the new locks are used much more locally and
should not cause problems.
On the bright side, refcounting being moved to memobj level means
we could remove refcounting implemented separately in all object
types and simplifies code a bit.
Change-Id: I6bc8438a98b1d8edddc91c4ac33c11b88e097ebb
This optimization make the offloading thread quickly yield to
another thread. Without this, it yileded only after the interval timer
set the rescheduling flag.
Change-Id: Ida3b17ed94782d5d1af0185a96b1f50d9db8d244
Defining C structures for the following objects:
(1) Remote and local context
(2) Stack of system call arguments / return values
Change-Id: Iafbb6c795bd765e3c78c54a255d8a1e4d4536288
(1) Add --enable-uti option. The binary-patch library is
preloaded with this option.
(2) Binary-patching is done by syscall_intercept developed by Intel
This commit includes the following fixes:
(1) Fix do_exit() and terminate() handling
(2) Fix timing of killing mcexec threads when McKernel thread calls terminate()
Change-Id: Iad885e1e5540ed79f0808debd372463e3b8fecea
Set PROT_EXEC to host VMA because uti needs PROT_EXEC for text VMAs.
Meanings of prot bits of Host VMA has been changed as follows.
RWX: No mapping or RW mapping
RX: Read only mapping
This is because this is a normal case since terminate() is changed so
that it first kills all mcexec threads and then kill McKernel threads.
Change-Id: I88380bf28b60645d361baded525d71105235c16f
