| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 2134 |
6272 d 6 h |
jermar |
/trunk/kernel/ |
Reworked handling of illegal virtual aliases caused by frame reuse.
We moved the incomplete handling from backend's frame method to
backend's page_fault method. The page_fault method is the one that
can create an illegal alias if it writes the userspace frame using
kernel address with a different page color than the page to which is
this frame mapped in userspace. When we detect this, we do D-cache
shootdown on all processors (!!!).
If we add code that accesses userspace memory from kernel address
space, we will have to check for illegal virtual aliases at all such
places.
I tested this on a 4-way simulated E6500 and a real-world Ultra 5,
which has unfortunatelly only one processor.
This solves ticket #26. |
|
| 2132 |
6273 d 13 h |
jermar |
/trunk/kernel/generic/src/mm/ |
Fix coding style in the address space area backends. |
|
| 2089 |
6329 d 13 h |
decky |
/trunk/ |
huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes |
|
| 2076 |
6338 d 14 h |
jermar |
/trunk/kernel/ |
Beat the implicit illegal virtual alias created by reusing userspace frames.
In the anonymous and ELF backends, if the architecture has virtually indexed D-cache,
selectively flush cachelines belonging to the frame being freed.
This fixes Ticket #20. |
|
| 2071 |
6340 d 5 h |
jermar |
/trunk/ |
(c) versus (C) |
|
| 2000 |
6390 d 15 h |
decky |
/trunk/kernel/ |
move files to more proper locations |
|
| 1787 |
6530 d 8 h |
decky |
/ |
move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot |
|
| 1780 |
6537 d 9 h |
jermar |
/kernel/trunk/ |
Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.). |
|
| 1760 |
6548 d 10 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 |
6551 d 14 h |
jermar |
/kernel/trunk/ |
Cleanup of comments. |
|
| 1702 |
6558 d 12 h |
cejka |
/kernel/trunk/ |
Kernel doxygen comments updated. |
|
| 1550 |
6568 d 10 h |
jermar |
/kernel/trunk/generic/src/mm/ |
Remove left over piece of code for increasing reference count in ELF backend. |
|
| 1546 |
6568 d 11 h |
jermar |
/kernel/trunk/generic/src/mm/ |
Add reference to shared frames of ELF image backed address space area. |
|
| 1426 |
6575 d 4 h |
jermar |
/kernel/trunk/generic/src/mm/ |
Support for sharing address space areas backed up by ELF image. |
|
| 1425 |
6575 d 6 h |
jermar |
/kernel/trunk/generic/ |
Make address space backend data a union. |
|
| 1424 |
6575 d 8 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. |
|