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8ebb3a4231fc6a7920d47b9b3d5aa2dabb073edc
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183 Commits

Author SHA1 Message Date
Tomoki Shirasawa
8ebb3a4231 schedule: migration free last thread if terminated 2016-03-03 22:44:44 +09:00
Tomoki Shirasawa
863a5c5e5f fix REQ-2, REQ-6, REQ-8 2016-02-23 16:32:17 +09:00
Tomoki Shirasawa
2c50b716fd support setitimer/getitimer 2016-02-19 15:25:05 +09:00
Tomoki Shirasawa
eba2be8a35 support times 2016-02-18 13:14:18 +09:00
Tomoki Shirasawa
a866192db7 refactoring /proc 2016-02-10 08:11:02 +09:00
Ken Sato
c0cc6ac6db Add skeleton for perf_event_open. 2016-02-09 14:54:53 +09:00
Tomoki Shirasawa
3a2f7b0106 clone: support CLONE_PARENT 2016-01-11 16:49:02 +09:00
Tomoki Shirasawa
75c6a94839 delete struct member 'type' from address_space structure 2016-01-06 20:17:00 +09:00
Tomoki Shirasawa
544971d665 modify for PVAS 2015-11-25 14:27:20 +09:00
Tomoki Shirasawa
eb6de9d1de delete debug code 2015-11-13 15:10:14 +09:00
Balazs Gerofi
0eaa27291a thread: move clear_child_tid, etc. to main structure 2015-10-29 11:01:27 +09:00
Tomoki Shirasawa
343bfbd30a rename back status field 2015-10-22 20:26:50 +09:00
Tomoki Shirasawa
4e4f1208f7 delete unused member 2015-10-19 20:12:26 +09:00
Tomoki Shirasawa
a325a78866 refactoring to send signal 2015-10-15 17:10:02 +09:00
Tomoki Shirasawa
04e193de13 refactoring process structures 2015-10-13 23:04:08 +09:00
NAKAMURA Gou
51789fcd38 initialize idle_vm for page faluts 2015-10-01 21:08:35 +09:00
NAKAMURA Gou
8dd9175411 schedule: fix null pointer dereference 2015-09-29 19:10:00 +09:00
Balazs Gerofi
40b8587a8a schedule(): sync CPU_FLAG_NEED_RESCHED flag with clone and migrate 2015-09-16 19:22:40 +09:00
Balazs Gerofi
c85a9b99e1 a couple of cosmetic changes of debug messages 2015-08-22 18:53:14 +09:00
Balazs Gerofi
f0ab8ec89a sched_request_migrate(): change CPU flags atomically 2015-08-10 12:45:59 +09:00
Balazs Gerofi
f4cc82578d check_need_resched(): no thread migration in IRQ context 2015-08-10 12:43:35 +09:00
Balazs Gerofi
9ba40dc0ff schedule(): hold runq lock for the entire duration of context switching 
releasing the runq lock after loading page tables but before the actual
context switch can leave execution in an inconsistent if the current
process is descheduled from an IRQ between these two steps.
this patch holds the runq lock with IRQs disabled and makes the context
switch a single atomic operation.
 2015-08-10 12:37:12 +09:00
Balazs Gerofi
8d6c97ea5c schedule(): disable auto thread migration 2015-08-07 16:07:31 +09:00
Balazs Gerofi
0a0e2c04a0 support for dynamically toggling time sharing when CPU is oversubscribed 2015-08-07 08:51:50 +09:00
Balazs Gerofi
aa191b87d3 schedule(): use XSAVE/XRSTOR and swap floating point registers in context switch 2015-08-07 08:41:00 +09:00
Balazs Gerofi
d5c243571f cpu_clear_and_set(): atomic CPU mask update in migration code 2015-08-06 10:49:55 +09:00
Balazs Gerofi
328e69a335 schedule(): do not preempt while holding spinlocks or while in offloaded syscall 2015-08-06 10:36:13 +09:00
Balazs Gerofi
b77755d0f7 obtain_clone_cpuid(): always start from CPU 0 and fill in cores linearily 2015-07-28 20:20:47 +09:00
Balazs Gerofi
d7bae14707 TEMPORARY: schedule(): move threads when core is explicitly oversubscribed 2015-07-28 20:12:58 +09:00
Balazs Gerofi
4e58d08f5c schedule_timeout(): give a chance to other process in spin sleep if CPU core is oversubscribed 2015-07-28 20:06:56 +09:00
Balazs Gerofi
9b1e691588 fix thread migration code (i.e., sched_setaffinity()) 
- moved migration code into idle() process and updated schedule() to detect
  when a thread has moved to another CPU in order to avoid doing housekeeping
  on behalf of the original one
- start CPU head from core 0
- keeps track of nested interrupts
 2015-07-24 20:09:17 +09:00
Balazs Gerofi
3988b0fc61 keep track of IRQ context and don't do thread migration there 2015-07-23 16:56:58 +09:00
Tomoki Shirasawa
1bc84d3feb modify to copy credentials 2015-07-13 15:29:26 +09:00
Balazs Gerofi
7647c99cc2 do_migrate(): disable IRQ while holding migq_lock to avoid deadlocking with reschedule interrupts 2015-07-09 15:23:28 +09:00
Balazs Gerofi
4ebe778ede vm->exiting: deal with exit_group() and concurrent page faults 2015-06-25 16:04:04 +09:00
Tomoki Shirasawa
7d5a68be1b add PID and GID to /proc/pid/status 
add /proc/pid/cmdline

refs #445
refs #447
 2015-05-18 17:45:37 +09:00
NAKAMURA Gou
4698bc40c2 implement System V shared memory for LTP syscalls 2015-03-19 16:21:18 +09:00
Tomoki Shirasawa
8934eb91a4 kill syscall check uid 2015-03-17 15:04:36 +09:00
Balazs Gerofi
8b24f60861 Combine range and memobj flags before arch_vrflag_to_ptattr() 2015-03-05 16:40:14 +09:00
Balazs Gerofi
bf12a5c45e Introduction of write-combined memory type mappings. 
Introduction of VR_WRITE_COMBINED, PTATTR_WRITE_COMBINED and modification
to the memobj's get_page() interface so that Linux communicates back mapping
flags (such as write-combined).
 2015-03-05 16:03:21 +09:00
Tomoki Shirasawa
e6011be1af create area for to save fp regs 
refs #421
 2015-03-05 12:18:46 +09:00
NAKAMURA Gou
2eac58aab3 add patch_process_vm(). (in progress) 
This function patches specified range of specified user space even if
the range is not writable.

refs #401
 2015-03-04 12:00:51 +09:00
NAKAMURA Gou
2239a6b09b modify page_fault_process() 
- change its argument from 'struct process *'
                        to 'struct process_vm *'.
- change its name from 'page_fault_process()'
                    to 'page_fault_process_vm()'.
- allow to resolve a fault on the process_vm of another process.
 2015-03-04 11:29:15 +09:00
Tomoki Shirasawa
8caeba7cba support PTRACE_GETSIGINFO and PTRACE_SETSIGINFO 
refs #422
 2015-03-03 09:54:57 +09:00
Balazs Gerofi
0307f6a6cc impementation of sched_{setparam, getparam, setscheduler, getscheduler, get_priority_min, get_priority_max, rr_get_interval} system calls 2015-02-19 11:46:03 -08:00
Tomoki Shirasawa
c0edb6fe6f add new cpu state CPU_STATUS_RESERVED 2015-02-18 13:46:08 +09:00
NAKAMURA Gou
16af976a71 support msync() system call. refs #382 
Msync(2) of this version writes only the pages which the calling process
modified. Modifications of the other processes are not written.
 2015-02-18 11:52:15 +09:00
Tomoki Shirasawa
9574a28a5f The same CPU is assigned to a different process. 
refs #423
 2015-02-17 18:27:46 +09:00
Susumu Komae
fa15f6b106 support PTRACE_SYSCALL. 
support PTRACE_O_TRACESYSGOOD.
ptrace_report_exec() calls ptrace_report_signal().

refs #265
 2015-02-17 16:56:27 +09:00
Susumu Komae
5f5ab34559 support PTRACE_ATTACH. 
fix PTRACE_TRACEME, PTRACE_DETACH.
 2015-01-30 21:02:01 +09:00