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218 Commits

Author SHA1 Message Date
Balazs Gerofi
0b82c8942b Tofu: keep track of stags per memory range 
Change-Id: I033beaeee3b141dab4485dd3a2a3848eaa84e54e
 2020-12-29 16:31:40 +09:00
Masamichi Takagi
530110e3a9 Tofu: fix ENABLE_TOFU switching 
Change-Id: Ib33323d4b59ea8fb4f5f40dff7ea25a36773d5e2
 2020-12-24 15:00:14 +09:00
Masamichi Takagi
33dd2e60b1 mcexec: memory policy control by environmental variable 
Refs: #1470
Change-Id: I3d556cae90d31d81572b1c4e5c680e826577d428
 2020-12-24 11:18:01 +09:00
Balazs Gerofi
1918df7765 Tofu: support for barrier gate, kmalloc cache 
Change-Id: I6f4cfec2ec404efd03b332fc3f449a775816230e
 2020-12-09 13:05:54 +09:00
Balazs Gerofi
92902d36fc Tofu: initial version 
Change-Id: I9c464d5af883c18715a97ca9e9981cf73b260f90
 2020-12-09 13:03:01 +09:00
Balazs Gerofi
201f5ce500 MM: straight mapping 
Change-Id: I70871f8c382fb00aa719ed501cc5de436d916d7f
 2020-12-08 12:32:10 +09:00
Tomoki Shirasawa
58106d791a struct process: fix type of group_exit_status 
Change-Id: Ib8492cbb077106cef1d0fa2d6d5e8e13bbb209c0
Refs: #1377
 2020-07-13 08:33:07 +00:00
Balazs Gerofi
3328ce03d9 Record pthread routine address in clone(), keep helper threads on caller CPU core (workaround for Fugaku) 
Change-Id: I29d1589e430dc1396558cdf3df4d068c27173612
 2020-06-16 13:26:53 +09:00
Masamichi Takagi
6332903f0d Revert "xpmem: Support large page attachment" 
This reverts commit a8696d811d.

Conflicts:
	kernel/include/process.h
	kernel/syscall.c
	kernel/xpmem.c

Change-Id: I726e74450f6228d3fc78fc62dda15b2067732a53
 2020-06-16 13:25:57 +09:00
Masamichi Takagi
e774e1b984 Revert "xpmem: fix mapping of attachment and segment" 
This reverts commit a5fcc91656.

Change-Id: If29415369d724391b291939ecce76482138e82f5
 2020-06-16 11:28:02 +09:00
Masamichi Takagi
a5fcc91656 xpmem: fix mapping of attachment and segment 
* Mapping attached part of segment is done at attach time instead of
  make time to work with runtimes (e.g. OpenMPI) xpmem_make-ing the
  entire user-space
* Mapping attached part of segment at attach time can be turned off by
  specifying xpmem_remote_on_demand in kernel argument
* Mapping attachment chooses appropriate page-sizes, i.e., largest
  allowed by memory range and segment page boundary

Fixes: a8696d8 "xpmem: Support large page attachment"
Change-Id: I44663865204036520e5f62fe22b9134ee4629f9b
 2020-06-15 10:11:29 +09:00
Balazs Gerofi
d5aafca1ae VM: use RW spinlock for vm_range_lock 
Change-Id: Id4654084207d55bf77cc9f8b42795e0f9873cfa0
 2020-06-12 03:07:33 +00:00
TOIDA,Suguru
3300e65efc madvise: Support MADV_WIPEONFORK, MADV_KEEPONFORK and MADV_NORMAL 
Change-Id: I1d4cf5affa580d7304dfdc34fa4f1707c0df617c
refs: #1374
 2020-03-23 09:13:01 +09:00
TOIDA,Suguru
5719b4c64a perf: update event structure 
Change-Id: I5bc0fdd42db509b5d2daca7d97e29ad1f7d11f1a
 2020-03-03 13:23:30 +09:00
Balazs Gerofi
4bbdee395e ptrace: fix execve and return value handling (fixes strace on aarch64) 
Change-Id: Icb5cb7f7e99fdb74a8628bc6b550688df5fb056b
 2020-02-10 07:45:06 +00:00
Masamichi Takagi
a8696d811d xpmem: Support large page attachment 
Change-Id: I4d672eee1c905160ece204d278f0afd9b6d7dc01
Refs: #1259
 2019-12-06 09:30:51 +09:00
Dominique Martinet
a563d780c1 munmap: fix deadlock with remote pagefault on vm range lock 
Add similar protection to clear_host_pte than to set_host_vma (see #986)

Also make the page fault handler only skip taking lock if the munmap
happened on the same cpu id

Change-Id: I6d9e68e8f8905b20bb2ccfa72848e04fe6404ab6
 2019-11-28 02:07:45 +00:00
Masamichi Takagi
edd3ea0103 Revert "memory_range_lock: Enable interrupt when trylock fails" 
This reverts commit 0d3ef65092.

Reason for revert: This fix causes circular dependency with memory_range manipulation and TLB flush. See #1394.

Change-Id: I4774e81ff300c199629e283e538c0a30ad0eeaae
 2019-11-11 15:28:08 +09:00
TOIDA,Suguru
bb08742467 fork: clone_thread: free resources when an error is detected 
Change-Id: I922f3fddc35942ef2c67db6673980770731dced9
 2019-09-26 01:56:16 +00:00
TOIDA,Suguru
58f4593478 fork: fpregs: return error code. 
Change-Id: I6ff150a39cd8952adad9b21d0c9f8514126ef957
 2019-09-26 01:56:16 +00:00
Masamichi Takagi
11ef2f8092 coredump: Support threads 
Change-Id: Id75ade6c87b15abcff5d772d90f77950376a32c1
Refs: #1219
 2019-08-09 04:00:15 +00:00
Tomoki Shirasawa
0d3ef65092 memory_range_lock: Enable interrupt when trylock fails 
Also use read-write-lock

Change-Id: I03150b7208325ec1fe422dcd5f931e4e41c8e40e
Refs: #452
 2019-08-08 00:38:55 +00:00
Shiratori, Takehiro
bb2589bac4 uti: futex_wait: Use kmalloc area for wait queue 
Change-Id: Ida994c87334f9613bbf5cbda45b6b5474fd4c6be
 2019-07-23 04:53:51 +00:00
Dominique Martinet
516ab87ab9 Copyrights: fujitsu 2018 bump 
Separate copyright bumps in a different commit.
A lot of files only had the copyright change at this point; these
were probably changes I added separatly in other patches but just
split these in a different commit instead to simplify git stats

Change-Id: I93cf3fc1c0fa04ee743a79c3fe9768933e6bd0d2
 2019-02-01 13:18:52 +09:00
Dominique Martinet
f299fff266 stack: add hwcap auxval 
Fix the AUXV_LEN to account for hwcap and remove the ifdefs

Change-Id: I303fc2c5fa4c8cea7ec9823f8580b8a66de2f58f
Fujitsu: POSTK_DEBUG_ARCH_DEP_65
 2019-02-01 13:17:58 +09:00
Ken Sato
dfd23c3ebe prctl: Add support for PR_SET_THP_DISABLE and PR_GET_THP_DISABLE 
Change-Id: I04c5568a9eb78bcac632b734f34bba49cf602c4d
Refs: #1181
 2019-01-22 05:40:56 +00:00
Masamichi Takagi
38e68f358a Add kernel argument to turn on/off time sharing 
Add "-T 0" to mcreboot.sh if you want to turn off time sharing.  When
it's turned off, McKernel doesn't activate interval timer when the
length of per-CPU run-queue is larger than one.

Change-Id: I2cedc1b30a9cd9a0f4608a32ecec0a0d58c6225e
 2018-11-21 07:37:01 +00:00
Dominique Martinet
06dd71a7e0 Revert "procfs: add '/proc/pid/stat' to mckernel side and fix its comm" 
This reverts commit b70d470e20.

That commit had been landed too fast after a mistake during migration
from old to new gerrit that didn't keep -1 vote ; it needs some fix

Change-Id: Ifc8a23e42449dfe471049270b4706e9b137e096e
 2018-10-12 10:54:14 +09:00
Dominique Martinet
b70d470e20 procfs: add '/proc/pid/stat' to mckernel side and fix its comm 
This lets ps show the proper executable name instead of mcexec's comm
on linux side

Change-Id: I62732037451f129fc2e905357ebdc351bf7f6d2d
Refs: #1114
 2018-10-04 01:01:19 +00:00
Tomoki Shirasawa
ed1edb152b ptrace supports threads 
Fujitsu: POSTK_DEBUG_TEMP_FIX_53, POSTK_DEBUG_ARCH_DEP_44
Refs: #771, #1179, #1143
Change-Id: Ie17ece6864f0eeb0c0e550f4e369abb77980a0d0
 2018-10-01 03:57:16 +00:00
Tomoki Shirasawa
e4da71010c check_signal: system call restart is done only once 
Fujitsu: POSTK_TEMP_FIX_66
Refs: #1009
Change-Id: Ic0f04ac6b7f6c6bb01b55fb389bf9befd56b1dd9
 2018-09-13 07:00:49 +00:00
Masamichi Takagi
cd00fc3a78 set_timer: Start timer when runnable thread count is bigger than one 
Change-Id: Ie32799fff2936ffc057f166db5681edccdbf5920
 2018-09-04 19:53:03 +09:00
Masamichi Takagi
04d4145b3e uti: Replace dead uti thread with new mcexec thread in proc->tids 
Change-Id: Ic6e906dd1bfac1b07f1317732cbe0a5191831cd8
 2018-09-04 19:53:03 +09:00
Masamichi Takagi
5cb8a1f10f uti: Workaround not to share CPU with OpenMP threads 
* Assign uti thread to the last idle CPU so that it's not shared with
  an OpenMP thread

Change-Id: Ia42cae056ce81fde9b6dab6286b39a52f3c9e172
 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
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
Masamichi Takagi
567dcd3846 Fix deadlock involving mmap_sem and memory_range_lock 
Change-Id: I187246271163e708af6542c057d0a8dfde5b211e
Fujitsu: TEMP_FIX_1
Refs: #986
 2018-09-04 19:51:10 +09:00
Dominique Martinet
2db69d0f24 process/vm: implement access_ok() 2018-09-04 19:51:10 +09:00
Balazs Gerofi
a697f5e98d partitioned execution: pass process rank to LWK 
Cherry-pick of d2d134d5e6a4b16a34d55d31b14614a2a91ecf47

Conflicts:
	kernel/include/process.h
 2018-09-04 19:51:10 +09:00
Ken Sato
f57b0c5d4f wait: Delay wake-up parent within switch context 
Fujitsu: POSTK_DEBUG_TEMP_FIX_41
Refs: #1006
Change-Id: Ia98e896505ad0f6549766604ade84550eee8bd2d
 2018-08-30 02:13:51 +00:00
Ken Sato
c716e87c53 execve: Clear sigaltstack and fp_regs 
Fujitsu: POSTK_DEBUG_TEMP_FIX_19
Refs: #976
Change-Id: I16895eab13eecbb47b7e6da961fae82ee5e570ee
 2018-08-01 15:11:05 +09:00
Dominique Martinet
0758f6254e headers: declare void arguments for functions 
Not giving any argument means that any argument is OK,
this is not what is meant here.

Change-Id: Ide651c1dec973d4b8709cf00646988f4c4f3acdd
 2018-07-03 09:18:25 +00:00
Dominique Martinet
c52f7a5b49 syscall wait4: add _WALL (POSTK_DEBUG_ARCH_DEP_44) 
Needed by strace -f
 2018-05-11 09:22:54 +09:00
Masamichi Takagi
fe42481d6f Add allow_oversubscribe kernel argument 
It's not allowed in the default setting.
Execute mcreboot.sh with -O option to allow it.

refs #1072
 2018-03-10 13:08:38 +09:00
Masamichi Takagi
65667709a8 Fix thread status race-condition caused by hold_thread() in do_kill() and terminate() 
Conflicts:
	arch/x86_64/kernel/syscall.c
	kernel/syscall.c
 2018-03-09 17:53:17 +09:00
Ken Sato
c260b5c6f3 xpmem: support for fork() 
refs #925
 2018-02-22 09:37:48 +09:00
Tomoki Shirasawa
4bb65494e9 signal: When the process receives a termination signal, it first terminates mcexec. 
refs #863
refs #870
 2018-01-23 14:40:38 +09:00
Tomoki Shirasawa
2f2b3cdc6f signal: interrupt_syscall is called by the core executing the thread that recieved the signal. 
refs #999
 2018-01-23 14:31:04 +09:00
Balazs Gerofi
589504dc33 mcreboot: -h to indicate halting CPU in idle threads (e.g., in futex_wait()) 2017-12-18 11:22:15 +09:00
Katsuya Horigome
d649d6fc2d Include mbind support (this is a rebase commit to merge into development) 2017-11-27 11:16:53 +09:00