| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 1780 |
6518 d 4 h |
jermar |
/kernel/trunk/ |
Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.). |
|
| 1702 |
6539 d 7 h |
cejka |
/kernel/trunk/ |
Kernel doxygen comments updated. |
|
| 1468 |
6552 d 5 h |
jermar |
/kernel/trunk/ |
Function for destroying address space for which there is no other reference in the kernel. |
|
| 1428 |
6555 d 22 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. |
|
| 1425 |
6556 d 1 h |
jermar |
/kernel/trunk/generic/ |
Make address space backend data a union. |
|
| 1424 |
6556 d 3 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 8 h |
jermar |
/kernel/trunk/ |
Update page fault handlers to distinguish between different access modes that had caused the page fault. |
|
| 1417 |
6558 d 0 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 12 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 23 h |
jermar |
/kernel/trunk/generic/ |
Reimplement memory sharing. Currently, only
anonymous address space areas can be shared. |
|
| 1411 |
6559 d 4 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 22 h |
jermar |
/kernel/trunk/generic/ |
Some shared memory stuff (not completed).
Support for address space area backends.
Add ELF and anonymous memory backends. |
|
| 1387 |
6562 d 6 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. |
|
| 1380 |
6563 d 2 h |
jermar |
/kernel/trunk/ |
Turn address space lock, address space area lock and
page_ht_lock into mutexes. |
|
| 1358 |
6567 d 4 h |
jermar |
/kernel/trunk/generic/ |
Cleanup after removal of as_area_accept and as_area_send. |
|
| 1329 |
6569 d 4 h |
palkovsky |
/kernel/trunk/generic/ |
Added support to IPC for simple page sharing. |
|
| 1306 |
6572 d 5 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 9 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. |
|
| 1239 |
6587 d 3 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 4 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. |
|
| 1235 |
6587 d 9 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. |
|
| 1227 |
6590 d 5 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. |
|
| 1178 |
6601 d 5 h |
jermar |
/kernel/trunk/ |
Add task_find_by_id().
Add kernel support for SYS_MAP_PHYSMEM. |
|
| 1149 |
6609 d 23 h |
jermar |
/kernel/trunk/generic/include/mm/ |
s/B+-tree/B+tree/ |
|
| 1147 |
6609 d 23 h |
jermar |
/kernel/trunk/generic/ |
Deploy B+tree in address space area management.
Change as_remap() to check for conflicts with other address space areas only when the area in question grows. |
|
| 1070 |
6627 d 11 h |
jermar |
/kernel/trunk/ |
More checks for address space area conflicts. |
|
| 1048 |
6628 d 6 h |
jermar |
/kernel/trunk/generic/ |
Restore interrupts when failing in as_remap().
Add check_area_conflicts() that checks whether address area overlaps with other areas.
Refuse to create writeable executable address space areas.
Rename as_area_t::size to as_area_t::pages. |
|
| 1044 |
6628 d 8 h |
jermar |
/kernel/trunk/ |
Page table locking. |
|
| 1026 |
6628 d 21 h |
jermar |
/kernel/trunk/generic/ |
Support only anonymous address space areas. |
|
| 977 |
6630 d 7 h |
jermar |
/kernel/trunk/ |
Add sys_mremap() syscall. |
|
| 973 |
6630 d 9 h |
palkovsky |
/kernel/trunk/generic/ |
Added simpler userspace starting. |
|
| 940 |
6632 d 2 h |
jermar |
/kernel/trunk/ |
Get rid of unneeded macros.
Their functionality has been replaced by the ELF loader. |
|
| 823 |
6663 d 22 h |
jermar |
/kernel/trunk/ |
Reimplement ASID stealing logic.
This time, hopefully, with correct synchronization. |
|
| 789 |
6666 d 23 h |
palkovsky |
/kernel/trunk/generic/ |
Early SLAB initialization, the cpu-cache is initialized later.
If you want to use slab_cache_create befor slab_cpu_enable, add
a flag SLAB_CACHE_MAGDEFERRED. |
|
| 788 |
6667 d 3 h |
jermar |
/kernel/trunk/ |
Move list and fifo data types to adt/. |
|
| 778 |
6668 d 2 h |
palkovsky |
/kernel/trunk/ |
Fixed boot process not to call malloc when slab not initialized.
Added simics workaround. |
|
| 756 |
6671 d 21 h |
jermar |
/kernel/trunk/ |
Memory management work.
Remove the last (i.e. 'root') argument from page_mapping_insert() and page_mapping_find().
Page table address is now extracted from the first (i.e. 'as') argument.
Add a lot of infrastructure to make the above possible.
sparc64 is now broken, most likely because of insufficient identity mapping of physical memory. |
|
| 755 |
6672 d 20 h |
jermar |
/kernel/trunk/ |
Change page_mapping_find/insert interfaces to take as_t * as first argument
and not asid_t as second argument. This change was necessitated by the
removal of mapping array from as_area_t and the fact that an address
space doesn't have an ASID when it is created. |
|
| 754 |
6672 d 21 h |
jermar |
/kernel/trunk/generic/ |
Remove address space area mapping array.
The information is to be stored directly in page tables.
This is to better support 64-bit systems which can have
fairly large address space areas. |
|
| 727 |
6683 d 23 h |
jermar |
/kernel/trunk/ |
New ASID management subsystem (initial work, more is required).
Some TLB invalidation changes. |
|