| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 1760 |
6529 d 1 h |
palkovsky |
/kernel/trunk/ |
Changed interface of frame_alloc/free to use address of frame instead of the pfn.
This makes it impossible to use >4GB of memory on 32-bit machines, but who cares... |
|
| 1757 |
6532 d 4 h |
jermar |
/kernel/trunk/ |
Cleanup of comments. |
|
| 1735 |
6534 d 6 h |
decky |
/kernel/trunk/ |
make kernel prints case consistent |
|
| 1705 |
6538 d 5 h |
cejka |
/kernel/trunk/ |
Added file with modules definitions and descriptions.
We are able to change modules order and their description in one place. |
|
| 1702 |
6539 d 2 h |
cejka |
/kernel/trunk/ |
Kernel doxygen comments updated. |
|
| 1594 |
6546 d 16 h |
jermar |
/kernel/trunk/generic/src/mm/ |
Never ever walk a B+tree as you destroy it. Or vice versa. |
|
| 1587 |
6546 d 23 h |
jermar |
/kernel/trunk/ |
task_destroy() implementation, fixes in as_destroy() and task_kill().
This is the first version of HelenOS that would perform complete cleanup leading from thread to destruction of address space. |
|
| 1544 |
6549 d 2 h |
palkovsky |
/kernel/trunk/generic/ |
Slightly better behaviour with caching on memory sharing. |
|
| 1495 |
6550 d 16 h |
jermar |
/kernel/trunk/ |
Remove three infinite loops introduced yesterday :-)
Make ia64 ready to load 5 ELF images. |
|
| 1483 |
6551 d 3 h |
jermar |
/kernel/trunk/generic/src/ |
Implement recursive function for deallocating the whole B+tree.
Make use of this function in address space management. |
|
| 1468 |
6552 d 0 h |
jermar |
/kernel/trunk/ |
Function for destroying address space for which there is no other reference in the kernel. |
|
| 1461 |
6552 d 2 h |
palkovsky |
/kernel/trunk/generic/ |
Slightly changed semantics of AS_AREA_SEND/RECV. |
|
| 1437 |
6554 d 20 h |
jermar |
/kernel/trunk/generic/src/mm/ |
Fix used_space_insert() to correctly service an empty used_space B+tree. |
|
| 1436 |
6554 d 21 h |
jermar |
/kernel/trunk/generic/src/mm/ |
Fight TLB inconsistency by proper placing of tlb_shootdown_start() and tlb_shootdown_finalize() in as.c. |
|
| 1434 |
6554 d 22 h |
palkovsky |
/kernel/trunk/ |
Added 'realtime' clock interface.
Added some asm macros as memory barriers.
Added drift computing for mips platform. |
|
| 1428 |
6555 d 18 h |
palkovsky |
/kernel/trunk/generic/ |
Added 256K slab, so that AMD can boot (until ELF loader is fixed).
Added AS_AREA_RECV so that the caller can receive AS_AREA. |
|
| 1424 |
6555 d 23 h |
jermar |
/kernel/trunk/ |
Move the sharing functionality to address space area backends.
Add backend for continuous regions of physical memory.
Sharing for these areas works automagically now. |
|
| 1423 |
6556 d 3 h |
jermar |
/kernel/trunk/ |
Update page fault handlers to distinguish between different access modes that had caused the page fault. |
|
| 1417 |
6557 d 19 h |
jermar |
/kernel/trunk/generic/ |
Modify as_area_share() to accept destination area flags bitmask from the sender
(i.e. the sender can limit access mode to the shared area for the recipient).
Modify IPC_M_AS_AREA_SEND code to support this. Arguments for sender: arg1=as_area,
arg2=size, arg3=flags_mask.
The mechanism seems to work, but the page fault handlers need to be altered to
distinguish between faults under different access modes. |
|
| 1415 |
6558 d 8 h |
jermar |
/kernel/trunk/generic/ |
Some renaming to prevent confusion.
as_lock -> inactive_as_with_asid_lock
as_t::refcount -> as_t::cpu_refcount |
|
| 1413 |
6558 d 19 h |
jermar |
/kernel/trunk/generic/ |
Reimplement memory sharing. Currently, only
anonymous address space areas can be shared. |
|
| 1411 |
6559 d 0 h |
jermar |
/kernel/trunk/ |
Modify the hierarchy of page fault handlers to pass access mode that caused the fault.
Architectures are required to pass either PF_ACCESS_READ, PF_ACCESS_WRITE or PF_ACCESS_EXEC
to as_page_fault(), depending on the cause of the fault. |
|
| 1409 |
6559 d 18 h |
jermar |
/kernel/trunk/generic/ |
Some shared memory stuff (not completed).
Support for address space area backends.
Add ELF and anonymous memory backends. |
|
| 1403 |
6561 d 7 h |
jermar |
/kernel/trunk/generic/src/mm/ |
Fixes of the used_space management code.
Switch as_area_destroy() and as_area_resize() to use the used_space map.
as_area_steal() not switched as it will undergo further changes. |
|
| 1387 |
6562 d 1 h |
jermar |
/kernel/trunk/generic/ |
Add used_space_insert() and used_space_remove().
These are the alpha versions of functions that
will help to map used and unused portions of address
space areas. Currently unused, but many as_area operations
will be more efficient when the used space B+tree map
is used. |
|
| 1383 |
6562 d 18 h |
decky |
/kernel/trunk/ |
ppc32: hardware memory mapping, kernel PHT refill fix |
|
| 1380 |
6562 d 21 h |
jermar |
/kernel/trunk/ |
Turn address space lock, address space area lock and
page_ht_lock into mutexes. |
|
| 1358 |
6567 d 0 h |
jermar |
/kernel/trunk/generic/ |
Cleanup after removal of as_area_accept and as_area_send. |
|
| 1329 |
6568 d 23 h |
palkovsky |
/kernel/trunk/generic/ |
Added support to IPC for simple page sharing. |
|
| 1309 |
6571 d 22 h |
jermar |
/kernel/trunk/generic/src/mm/ |
On as_area_destroy(), mark the area as partial before unlocking and free its
structure after unlocking. |
|
| 1306 |
6572 d 1 h |
jermar |
/kernel/trunk/generic/ |
Add SYS_AS_AREA_DESTROY syscall.
Add few error codes to errno.h
and change as.c accordingly. |
|
| 1288 |
6578 d 5 h |
jermar |
/kernel/trunk/ |
Complete implementation of copy_from_uspace() and copy_to_uspace()
for amd64 and ia32. Other architectures still compile and run,
but need to implement their own assembly-only memcpy(), memcpy_from_uspace(),
memcpy_to_uspace() and their failover parts. For these architectures
only dummy implementations are provided. |
|
| 1248 |
6585 d 23 h |
jermar |
/kernel/trunk/ |
Add some @file doxygen comments and improve already existing comments. |
|
| 1239 |
6586 d 23 h |
jermar |
/kernel/trunk/generic/ |
Prevent race in as_area_send() by allowing the address space area to be
created with AS_AREA_ATTR_PARTIAL attribute. |
|
| 1238 |
6587 d 0 h |
jermar |
/kernel/trunk/generic/ |
Rename SYS_AS_AREA_SHARE_APPROVE and SYS_AS_AREA_SHARE_PERFORM, resp., to
SYS_AS_AREA_ACCEPT and SYS_AS_AREA_SEND, resp. in syscall_t.
Fix prototype of as_area_send() to take only base address of the address
space area as a parameter and read size and flags from the address space
area found at this base address. |
|
| 1236 |
6587 d 5 h |
jermar |
/kernel/trunk/generic/ |
Add frame_reference_add(). |
|
| 1235 |
6587 d 5 h |
jermar |
/kernel/trunk/generic/ |
Implementation of SYS_AS_AREA_ACCEPT and SYS_AS_AREA_SEND syscalls.
Note that these replace previously declared SYS_AS_AREA_SHARE_APPROVE
and SYS_AS_AREA_SHARE_PERFORM. |
|
| 1233 |
6588 d 21 h |
jermar |
/kernel/trunk/generic/src/mm/ |
Do not allow zero size address space areas. |
|
| 1227 |
6590 d 1 h |
jermar |
/kernel/trunk/ |
Reorganize syscall names to better correspond to kernel architecture.
Add dummy placeholders for SYS_AS_AREA_SHARE_APPROVE and
SYS_AS_AREA_SHARE_PERFORM syscalls. |
|
| 1179 |
6601 d 0 h |
jermar |
/kernel/trunk/generic/src/mm/ |
Add some sanity checks to make sure the address space created by SYS_MAM_PHYSMEM will not be remapped
and that as_page_fault() will not try to service page fault for that area. |
|