11bb334bd4
support mremap(2)
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fixes #22
2014-07-02 15:30:52 +09:00
90aaf9dc9c
support remap_file_pages(2)
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fixes #21
2014-06-30 17:33:51 +09:00
bb3756dc74
add fileoff-type PTE
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fileoff-type PTE holds a file offset which the page data should be
loaded from.
refs #21
2014-06-30 17:33:50 +09:00
dc7f38c8c7
Merge branch 'master' of postpeta.pccluster.org:mckernel
2014-06-25 13:45:46 +09:00
770eae0186
support sigaltstack
2014-06-25 13:45:33 +09:00
a9bebf1e14
Make idle loop not miss a chance to schedule
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Prevents the case where McKernel misses one chance to schedule a
task when an interrupt occurs just after enabling interrupt and
just before executing "halt" in the idle loop (in kernel/process.c).
refs #45
2014-06-12 11:22:02 +09:00
514d75b685
execve(): supporting syscall and mcexec modifications
2014-05-22 17:39:13 +09:00
badb450153
more detailed report in memory management error path
2014-05-22 17:27:39 +09:00
e5aad641ac
delete old page fault handlers
2014-05-07 22:10:21 +09:00
71d1359d53
merge two page fault functions
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fixes #18
2014-05-07 21:24:45 +09:00
99dec9b805
add parameters to arch_vrflag_to_ptattr()
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for other architectures and future use
refs #18
2014-05-07 21:24:45 +09:00
769cf79bf8
move vrflag_to_ptattr() to arch/x86/kernel/memory.c
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refs #18
2014-05-07 21:24:45 +09:00
7e788f06f7
add PTATTR_DIRTY
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refs #18
2014-05-07 21:24:45 +09:00
ce7af5839d
keep page.count valid through its life cycle
2014-05-07 21:24:45 +09:00
604d1da50f
change macro name: PF_DONTCOW --> PF_POPULATE
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refs #18
2014-04-25 11:19:21 +09:00
c15c2a2024
fix process refcount so that process structure is still valid when final release() is called in schedule()
2014-04-24 17:09:14 +09:00
0e348e6295
SIGCHLD and wait4(), i.e. wait()/waitpid() implementation
2014-04-23 13:33:18 +09:00
7103fed1dc
rename free_process() ro release_process()
2014-04-23 13:31:15 +09:00
2a9bd2efb1
fix clean-up path in create_process()
2014-04-21 19:55:43 +09:00
40fdb8865b
Merge branch 'master' of postpeta.pccluster.org:mckernel
2014-04-11 15:41:25 +09:00
b93db2411c
check CLONE_VM in clone_flags for determining whether clone()/fork() is requested
2014-04-11 15:41:17 +09:00
39a86fad18
support execute disabled stack
2014-04-11 14:59:47 +09:00
b31a1b6db2
add PTATTR_NO_EXECUTE
2014-04-11 14:59:47 +09:00
cf442e6a14
fork(): preliminary version (no wait()/waitpid() support yet)
2014-04-02 14:07:38 +09:00
76089e2682
add AT_PAGESZ to auxvec
2014-02-26 10:31:44 +09:00
f0a52d4519
implement mmap(MAP_POPULATE)
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populate_process_memory() function is not efficient,
because whether every small page is present is checked.
2014-01-27 18:50:38 +09:00
e86ffb0b57
do write back only MAP_SHARED pages
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Fix a problem that cause write reference to a MAP_PRIVATE mapping to
change the underlying file.
2014-01-14 18:48:43 +09:00
0465cc16b9
signal (part 2) sigpending
2014-01-07 19:52:06 +09:00
a8c249ddaf
signal (part 1)
2014-01-07 11:57:57 +09:00
03521e9c2c
add copyrights
2013-11-14 16:49:40 +09:00
bbbc6e1570
add shared mapped file (in progress)
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implemented:
- Pages can be shared between maps.
- A change made to a map is written to the file, at munmap().
not yet implemented:
- VM operation during page IO execution.
Because page IO is executed with VM's lock.
- Page IO, which does not change a file size with any case.
When munmap() races with truncate(), the file size may be changed
illegally.
2013-11-11 18:18:33 +09:00
bdc02bb687
refuse the write to a read-only memory
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It was able to change a read-only memory using a system call that
forwarded to host.
To fix this, when read-only mmap(), it places read-only vm_area in the
mcexec's space.
2013-11-06 16:06:58 +09:00
6e736f6248
change the stack size according to stack size limit
2013-10-30 12:33:03 +09:00
db45e11921
apply demand paging to stack area
2013-10-30 12:33:03 +09:00
27172ad413
support private mapped file
2013-10-15 12:30:41 +09:00
4fb6620f3a
sys_getrlimit: modified to return mcexec's RLIMIT_STACK
2013-10-11 22:36:16 +09:00
a171da1015
add a AT_ENTRY entry to the auxiliary vector
2013-10-11 22:23:22 +09:00
1d69225532
mcexec forward signal to MIC process.
2013-08-19 12:17:23 +09:00
480f6d4c2f
rewrite page_fault_handler()
2013-08-08 12:43:00 +09:00
78d9d3fcd2
Revert "trial implementation of private file mapping"
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This reverts commit abe57218c4
2013-07-26 16:44:39 +09:00
abe57218c4
trial implementation of private file mapping
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for review only. will soon be reverted.
2013-07-26 14:40:12 +09:00
deb9cd4e75
implement sys_munmap()
2013-07-18 09:25:58 +09:00
334662b7fe
implement sys_mprotect()
2013-07-18 09:25:58 +09:00
3749696d3e
simple signal handler and kill(2) support.
2013-07-18 08:53:28 +09:00
2aa5194958
rewrite sys_mmap() as sys_new_mmap()
2013-07-10 13:11:19 +09:00
43f4bb3e78
free_process_memory(): support demand paging
2013-07-10 13:11:18 +09:00
b59be07e9a
implementing demand paging to make it possible to run Intel OpenMP programs
2013-07-04 15:41:12 +09:00
be71505e87
fix remove_process_memory_range(): remove INIT_LIST_HEAD for on-list item
2013-06-24 13:29:33 +09:00
5369864551
fix warnings
2013-06-19 16:47:02 +09:00
ff5ee67d06
remove PTATTR_USER from the decision of ihk_mc_ap_flag in __set_pt_page
2013-06-19 12:07:40 +09:00
