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Author SHA1 Message Date
Masamichi Takagi
dbba7dea18 uti: Allow only the first do_fork() call to create a uti thread 2018-09-04 19:53:01 +09:00
Masamichi Takagi
b6ab5911b7 uti: Identify uti thread by clone count 
--uti-thread-count <count> is added to mcexec.

Change-Id: Id9ec464412a5bb71e4d9e87d05f79de22d35b067
 2018-09-04 19:53:01 +09:00
Masamichi Takagi
b0d7f890d0 uti: Reverse-offload msync() 2018-09-04 19:53:01 +09:00
Masamichi Takagi
b9c0cdddab uti: Cosmetic change 2018-09-04 19:52:14 +09:00
Masamichi Takagi
7ee7dd5e2c uti: Allow tracer to call release_handler() for the main process 
Change-Id: I934a6eefbcb87473e87c109d6b4d32c7ab486894
 2018-09-04 19:52:14 +09:00
Masamichi Takagi
07db4a80a7 __do_in_kernel_syscall: Move ihk_ikc_release_packet from mcexec_wait_syscall 
Change-Id: Ieeb5fda42dbddc9da27242f4b547c2143659f97a
 2018-09-04 19:52:14 +09:00
Masamichi Takagi
f04e5c24ab uti: Don't call mcexec_terminate_thread() when McKernel asks mcexec to interrupt system call 2018-09-04 19:52:14 +09:00
Masamichi Takagi
b8bacdd2de Reference counting per-thread data 
It is accompanied by the following fixes:
(1) Fix put ppd locations in mcexec_wait_syscall()
(2) Move put ptd to end of mcexec_terminate_thread_unsafe() and mcexec_ret_syscall()
(3) Add debug messages for ptd add/get/put
(4) Fix ptd-add/get/put matching in mcexec_wait_syscall()
    * Skip put when woken-up from wait_event_interruptible() by signal

Change-Id: Ib9be3f5e62a7a370197cb36c9fa7c4d79f44c314
 2018-09-04 19:52:14 +09:00
Masamichi Takagi
a121ffc785 uti: Release packet of reply from McKernel in backward_offload() 2018-09-04 19:52:14 +09:00
Masamichi Takagi
88f9693390 uti: Return -ENOSYS without offloading for set_robust_list() 
Change-Id: I43466e3850fd2ad68e5754d1d460438fa47f3ed4
 2018-09-04 19:52:13 +09:00
Masamichi Takagi
124ec580a0 uti: Call do_exit when tracer isn't working and do_syscall returned -ERESTARTSYS 2018-09-04 19:52:13 +09:00
Masamichi Takagi
af7f61db49 uti: mcexec: Fix error check of pthread_detach 
Change-Id: Idda8e060641bbd7b01c50163140a2c5f7466d193
 2018-09-04 19:52:13 +09:00
Masamichi Takagi
ee299b5780 uti: Check size of syscall arguments for syscall_intercept 
Change-Id: I747b90e1f521b08266cfc021ef4b23e2e3c7ba4c
 2018-09-04 19:52:13 +09:00
Masamichi Takagi
c60a778c8d uti: Zero-clear struct mckernel_exec_file before initialization 
Change-Id: I315008b7f5c9e66a93b80da87d1a6332d717c2aa
 2018-09-04 19:52:13 +09:00
Masamichi Takagi
25a129ea6a uti: Disable jumping to McKernel futex code 2018-09-04 19:52:13 +09:00
Masamichi Takagi
8e9924c523 uti: Lock per_thread_data_hash_lock in mcctrl_put_per_proc_data() 2018-09-04 19:52:13 +09:00
Masamichi Takagi
c71291a429 mcctrl: Add mcexec_terminate_thread_unsafe() 
Change-Id: I6ca54cdac2ab9449d40b22f7329f1a215e5aa33b
 2018-09-04 19:52:13 +09:00
Masamichi Takagi
ba93b83d68 uti: Add __user to mcexec_terminate_thread argument 
Change-Id: Ic96a91e6a892a1bd2f1d333580e28bced6a40dc0
 2018-09-04 19:52:13 +09:00
Masamichi Takagi
c2f41ca9ad uti: Replace hand-made list of host_threads with Linux macro 
Change-Id: Ib46cc9fcdd2854b7bbe21c2cc885beeb22d16dd2
 2018-09-04 19:52:13 +09:00
Masamichi Takagi
062d7ecae3 uti: Use copy_from_user() in mcexec_terminate_thread() 2018-09-04 19:52:12 +09:00
Masamichi Takagi
58d038fcac uti: Fix wrong argument passed to ihk_ikc_release_packet() in mcexec_terminate_thread() 2018-09-04 19:52:12 +09:00
Masamichi Takagi
510310342c uti: Use fresh struct syscall_request instance when replying to syscall_backward() 2018-09-04 19:52:12 +09:00
Masamichi Takagi
a6198f267b uti: Offload set_robust_list to McKernel 2018-09-04 19:52:12 +09:00
Masamichi Takagi
5e78bd85ab uti: Fix tracer exit code for the case when create_tracer() isn't called 2018-09-04 19:52:12 +09:00
Masamichi Takagi
85c0c8a01f uti: Add debug messages for syscall 
Change-Id: I2f96e71d5384f883f7dc568122c57d92bc1cd818
 2018-09-04 19:52:12 +09:00
Masamichi Takagi
e29f579061 uti: Prevent user space vma from getting copied when forking 2018-09-04 19:52:12 +09:00
Masamichi Takagi
63703589e5 uti: Clear user space PTEs after first fork in create_tracer() 
Change-Id: I60755f0cb5e84c3a5a5cd91515411a30f0995822
 2018-09-04 19:52:12 +09:00
Masamichi Takagi
5c8c1986b5 uti: Add comment on ppd life cycle 
Change-Id: Id16cf036b2d919444e8634b536fd701d996bcef2
 2018-09-04 19:52:12 +09:00
Masamichi Takagi
e4370d235c uti: Make tracer not call mcexec_terminate_thread() when tracee is killed by signal 
Change-Id: I5878c7d623ce182a7cb9578c9d5c430c1bee8e1e
 2018-09-04 19:52:12 +09:00
Masamichi Takagi
31ac007cb5 uti: Increase CPU_HZ to 1000 
Change-Id: I8619263845fd8ebabe6fc7de619a5b51ac04470a
 2018-09-04 19:52:11 +09:00
Masamichi Takagi
56da7e2de9 uti: Allocate memory area directly to uti_desc->wp 
Change-Id: Ia5a1dbf56b937d9d05cd7fa1c5eec4a5b4b7b196
 2018-09-04 19:52:11 +09:00
Masamichi Takagi
35300e7b4f uti: Create tracer when forking 
Change-Id: Ic66cf6289ac6f32a884ba1266e641ce61620a239
 2018-09-04 19:52:11 +09:00
Masamichi Takagi
439dc0928b uti: Streamline syscall_backward() 2018-09-04 19:52:11 +09:00
Masamichi Takagi
4b3e58fd3d uti: Call terminate only when exit_group is called 
Tracer tells McKernel side to call do_exit() in WIFSIGNALED case.

Change-Id: If85c6cbb4856036b406b11335f1384e57f26292d
 2018-09-04 19:52:11 +09:00
Masamichi Takagi
b7cdbd6c42 uti: Enforce mcexec is destroyed and then McKernel process is destroyed 2018-09-04 19:52:11 +09:00
Masamichi Takagi
77f5cac2bf uti: Make tracer exit when not used 
Change-Id: I3d3b2f92fa2b160ffce633c46d1b60e9079e7f1b
 2018-09-04 19:52:11 +09:00
Masamichi Takagi
9102b176c4 uti: Make per_proc_data of tracee survive over the signal-kill of the tracee 
Change-Id: I8ff1dddb526ef2fd948cfe1b8f3aa8403c2006d6
 2018-09-04 19:52:11 +09:00
Masamichi Takagi
bb4317beaf uti: futex: Propagate -ERESTARTSYS returned by wait_event_interruptible() 
Change-Id: Id36c4df0e0a8e1f64b12c635c0502f63552ba50b
 2018-09-04 19:52:11 +09:00
Masamichi Takagi
d24b7585b7 uti: Make tracee pthread-detached 
Change-Id: I672ee18739b956980901b63e55ee3ebc192b4e56
 2018-09-04 19:52:11 +09:00
Masamichi Takagi
4438f994dc uti: Add/Modify test programs 
Change-Id: I27a39d6b11af5243f93d07c31c2ef80f6727dd53
 2018-09-04 19:52:11 +09:00
Masamichi Takagi
52afbbbc98 uti: Call into McKernel futex() 
(1) Masquerade clv
(2) Fix timeout
(3) Let mcexec thread with the same tid as McKernel thread migrating
    to Linux handles the migration request
(4) Call create_tracer() before creating proxy related objects

Change-Id: I6b2689b70db49827f10aa7d5a4c581aa81319b55
 2018-09-04 19:52:10 +09:00
Masamichi Takagi
460917c4a0 remote_page_fault,syscall_backward: Zero-clear waitq entry 
Change-Id: I151a35004183e911aaba766a8749830e1768bfe6
 2018-09-04 19:52:10 +09:00
Masamichi Takagi
7803468afe remote_page_fault,syscall_backward: Retry when interrupted by signal 
Change-Id: Ic7d72ad9ca32bb3c8e3522e00fef1d98caf3c049
 2018-09-04 19:52:10 +09:00
Masamichi Takagi
8f2c7d2265 Fix thread-safety issue in rus_vm_fault 
Change-Id: I8640a8e0de8a0dfaee700b25e5f9e2941ac98fc8
 2018-09-04 19:52:10 +09:00
Masamichi Takagi
c6c3a84a46 syscall: Add missing definition of thread to access thread->sigpending 2018-09-04 19:52:10 +09:00
Masamichi Takagi
5a7ca14fcc rus_vm_fault: Return VM_FAULT_SIGBUS when per-process data is not found 2018-09-04 19:52:10 +09:00
Masamichi Takagi
d7b882855a Correct comments in declaration of struct ikc_scd_packet 2018-09-04 19:52:10 +09:00
Masamichi Takagi
2337832e4c pager_req_release(): Correct debug messages 2018-09-04 19:52:10 +09:00
Masamichi Takagi
be635ceb19 terminate: Fix coutning of non-leader threads 
Change-Id: I8399ad553bb8e09bef508ac976e8cd56cdae8013
 2018-09-04 19:51:11 +09:00
Masamichi Takagi
0b0b7b03d7 Prevent one CPU from getting chosen by concurrent forks 
One CPU could be chosen by concurrent forks because CPU selection and
runq addition are not done atomicly. So this fix makes the two steps
atomic.

Change-Id: Ib6b75ad655789385d13207e0a47fa4717dec854a
 2018-09-04 19:51:11 +09:00