| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 1868 |
6636 d 6 h |
jermar |
/trunk/ |
sparc64 work.
- the syscall wrapper needs to use the "memory"
clobber specifier to prevent over-optimization.
- on sparc64, the user address space spans the whole
64-bit space and therefore the macro
USER_ADDRESS_SPACE_SIZE_ARCH, as it was defined,
overflows to 0
- stop using USER_ADDRESS_SPACE_SIZE_ARCH and define
MAX_HEAP_SIZE instead
- in our situation when kernel and user address spaces
are separate, the G (global) bit cannot be used
(there is no point in it anymore)
- add the DEBUG() macro to stdio.h; DEBUG() uses
SYS_IO and is a good debugging tool for getting
early userspace to work |
|
| 1851 |
6651 d 8 h |
jermar |
/trunk/kernel/ |
sparc64 work.
Define the istate structure.
Move the identity-mapping handler to assembly.
Make the preemptible handler more general so that TL=1 MMU exceptions can make use of it.
Little bit of formatting and indentation. |
|
| 1787 |
6692 d 3 h |
decky |
/ |
move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot |
|
| 1780 |
6699 d 4 h |
jermar |
/kernel/trunk/ |
Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.). |
|
| 1702 |
6720 d 7 h |
cejka |
/kernel/trunk/ |
Kernel doxygen comments updated. |
|
| 1468 |
6733 d 5 h |
jermar |
/kernel/trunk/ |
Function for destroying address space for which there is no other reference in the kernel. |
|
| 1428 |
6736 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 |
6737 d 1 h |
jermar |
/kernel/trunk/generic/ |
Make address space backend data a union. |
|
| 1424 |
6737 d 4 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 |
6737 d 8 h |
jermar |
/kernel/trunk/ |
Update page fault handlers to distinguish between different access modes that had caused the page fault. |
|
| 1417 |
6739 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 |
6739 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 |
6739 d 23 h |
jermar |
/kernel/trunk/generic/ |
Reimplement memory sharing. Currently, only
anonymous address space areas can be shared. |
|
| 1411 |
6740 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 |
6740 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 |
6743 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 |
6744 d 2 h |
jermar |
/kernel/trunk/ |
Turn address space lock, address space area lock and
page_ht_lock into mutexes. |
|
| 1358 |
6748 d 4 h |
jermar |
/kernel/trunk/generic/ |
Cleanup after removal of as_area_accept and as_area_send. |
|
| 1329 |
6750 d 4 h |
palkovsky |
/kernel/trunk/generic/ |
Added support to IPC for simple page sharing. |
|
| 1306 |
6753 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. |
|