Commit Graph

75 Commits

Author SHA1 Message Date
52cd57fed2 memory/x86_64: fix linux safe_kernel_map
init_linux_kernel_mapping is called in setup_x86_phase1 way
before arguments are setup, but we can access kernel boot args
directly and use that, so ugly fix for now.

Change-Id: I285ecc31c6646d6d18566d411b09ae3190e8101e
Refs: #1228
2018-12-04 10:05:03 +00:00
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
a751e96b1a Add mck_num_processors symbol pointing to num_processors
the 'num_processors' symbol is also used by linux, so trying to load all
symbols from linux and mckernel at the same time renders either symbol
inaccessible (the first to be seen is kept by default).

This provides an alternate name for the mckernel symbol, thus letting us
access both more easily if required.

Change-Id: I8074d4f9f9ac45717df9a8df16be710ff762e161
2018-10-11 09:12:04 +00:00
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
38c3b2358a Exclude areas not assigned to Mckernel from direct map of all phys. memory
It's enabled by adding -s to mcreboot.sh.

Cherry-pick of the following commit:

commit b5c13ce51a5a4926c2cf11c817cd0d369ac4402d
Author: Katsuya Horigome <katsuya.horigome.rj@ps.hitachi-solutions.com>
Date:   Mon Nov 20 09:40:41 2017 +0900

    Include measures to prevent memory destruction on Linux side (This is rebase commit for merging to development+hfi)
2018-09-04 19:51:10 +09:00
3185334c1c debug messages: implement dynamic debug
Heavily inspired off linux kernel's dynamic debug:
 * add a /sys/kernel/debug/dynamic_debug/control file
 (accessible from linux side in /sys/class/mcos/mcos0/sys/kernel/debug/dynamic_debug/control)
 * read from file to list debug statements (currently limited to 4k in size)
 * write to file with '[file foo ][func bar ][line [x][-[y]]] [+-]p' to change values

Side effects:
 * reindented all linker scripts, there is a new __verbose section
 * added string function strpbrk

Change-Id: I36d7707274dcc3ecaf200075a31a2f0f76021059
2018-07-26 14:16:31 +09:00
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
228f8f8533 Wait for LWK to run at shutdown.
refs #898
refs #928
2018-02-06 10:40:12 +09:00
589504dc33 mcreboot: -h to indicate halting CPU in idle threads (e.g., in futex_wait()) 2017-12-18 11:22:15 +09:00
d7523cdd84 Remove assignment of ns_per_tsc in struct monitor
struct member seems to have been removed or moved to struct
global_rusage
2017-10-18 09:20:52 +09:00
8f4afe410f Remove obsolete pc_init(), pc_ap_init(), pc_test() 2017-09-29 13:20:01 +09:00
5b51eb80a3 Redirect kmsg to /dev/log and detect hungup
1. ihkmond retrieves kmsg when the amount of kmsg exceeds the threashold and
   /dev/mcosX is deleted
2. ihkmond periodically monitors OS status change to detect hungup
2017-09-20 15:25:19 +09:00
daa7526127 rusage and ihklib: Fix out-of-memory reporting and cleanup
1. Fix OOM: Count memory usage only when allocation succeeded
2. Fix OOM: Make user allocation fail when memory is running out
3. Fix OOM: Move rusage_init() before numa_init()
4. Cleanup: Rename ihkconfig/ihkosctl functions
5. Cleanup: Pass event type to eventfd()
6. Cleanup: arch/.../rusage.h --> arch/.../arch_rusage.h
2017-09-20 15:11:57 +09:00
aa7cb970c4 ihk_os_getrusage(): Compile LWK-specific results in mcctrl
1. User asks mcctrl for the result via ihk_os_getrusage() with passing void *
2. mcctrl compiles the results and passes them to the user
3. User interprets it by using the type defined in the LWK-specific header
2017-09-20 15:03:45 +09:00
43db8e2d65 remove osnum from mckernel kargs. refs #338 2017-09-12 14:53:44 +09:00
a05b6e1ba8 Expand dump-functions for excluding user/unused memory (This is rebase commit for merging to development) 2017-09-11 15:49:04 +09:00
9989f41fd3 add arm64 support
- add arm64 dependent codes with GICv3 and SVE support
- fix bugs based on architecture separation requests
2017-09-05 15:06:27 +09:00
74f15783d2 ihk_os_getrusage(): Add per-page-size memory usage accounting 2017-08-17 12:49:34 +09:00
d7b8e7f4f4 fix to count user pages
refs #864
2017-07-14 09:51:39 +09:00
0f58e9e77d NUMA: expose correct /sys/devices/system/node/nodeX/meminfo 2017-07-07 00:59:32 +09:00
72e3f5ee50 ihk_mc_get_ikc_cpu(): Get IKC destination CPU 2017-07-11 20:20:40 +09:00
b527503937 Fix rusage 2017-06-07 15:15:20 +09:00
8daffa939e IKC: distribute IKC-interrupt to Linux cpus. 2017-05-19 10:26:29 +09:00
3fe2257929 create rusage branch. 2017-03-15 23:22:51 +09:00
cdffc5e853 do_syscall(): eliminate centralized lock for exit/kill code path (use IKC2 thread pool) 2017-01-08 14:16:10 +09:00
202bfd9955 IHK-API: expand and fix for ver 1.2. 2016-12-08 17:28:53 +09:00
b068fde9cd NUMA: use IHK CPU and NUMA mappings for sysfs entries 2016-10-14 21:34:31 +09:00
3fa3920bb3 fix a couple of debug msgs 2016-08-14 11:30:17 +09:00
41bb2ab5e6 support vdso which borrows clocksource from linux 2016-03-28 22:57:44 +09:00
a2c29e8abf correct the value of tod_data.origin
tod_data.origin should hold a time when TSC is zero.
2016-03-28 22:57:39 +09:00
70e8dd7979 remove initialization of TSC (refs #362) 2016-03-11 19:17:29 +09:00
6ce00b5f0f sysfs: samples of snooping ops 2016-02-29 19:59:04 +09:00
ebce1cb031 Merge branch 'master' of postpeta.pccluster.org:mckernel 2016-02-22 13:34:00 +09:00
fff7744907 mcklogd support 2016-02-22 13:32:20 +09:00
a866192db7 refactoring /proc 2016-02-10 08:11:02 +09:00
a055fb525d sysfs sample 2015-12-16 13:42:30 +09:00
8cb72df663 support McKernel's sysfs tree 2015-12-16 13:42:30 +09:00
1a5ff7f535 gettimeofday: gather variables into new struct 2015-11-11 18:31:33 +09:00
be78eb752e time_init: fix zero divide on KVM 2015-11-06 19:31:42 +09:00
153a59a6f4 gettimeofday: avoid per-cpu data in calculation
Because it is difficult to safely update per-cpu data of other cpus in
settimeofday().
2015-10-27 19:21:50 +09:00
04e193de13 refactoring process structures 2015-10-13 23:04:08 +09:00
9ae5bcf46e gettimeofday(): an implementation based on CPU invariant TSC support 2015-08-24 23:53:56 +02:00
daec7de828 implement /proc/stat
only for sysconf(_SC_NPROCESSORS_ONLN).  This enables Intel OpenMP
runtime to arrange threads with regard for CPU topology.

refs #291
2015-03-04 15:46:53 +09:00
0dee04f16b move parse_args() to after arch_init()
In attached-mic, bootparam is not mapped until arch_init() is finished.
In builtin-mic and builtin-x86, virtual address of bootparam is changed
in arch_init().
2015-02-18 20:49:46 +09:00
037e17c4ed fix parsing of "osnum=" kargs 2015-02-18 16:44:14 +09:00
0942bf0ce0 make dkprintf() evaluate its parameters always
Parameters of dkprintf() should be evaluated even if dkprintf() is
disabled.  Because this enables to find expression of parameter obsolete
and to avoid unnecessary compiler warnings such as "unused variable".
2014-12-22 16:58:03 +09:00
013d3e95c2 Fix manipulation of fork_tree_node for ptrace 2014-10-15 14:42:17 +09:00
0f95a84293 Migrated. 2014-09-04 14:58:04 +09:00
319590910a Almost implemented. 2014-09-03 15:20:39 +09:00
c783ec8e11 Implemented procfs. 2014-08-28 09:16:50 +09:00