| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 2141 |
6305 d 8 h |
jermar |
/trunk/ |
The Ultimate Solution To Illegal Virtual Aliases.
It is better to avoid them completely than to fight them.
Switch the sparc64 port to 16K pages. The TLBs and TSBs
continue to operate with 8K pages only. Page tables and
other generic parts operate with 16K pages.
Because the MMU doesn't support 16K directly, each 16K
page is emulated by a pair of 8K pages. With 16K pages,
illegal aliases cannot be created in 16K D-cache. |
|
| 2134 |
6306 d 12 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. |
|
| 2129 |
6341 d 11 h |
jermar |
/trunk/ |
Fix small problem in sparc64 port.
Bump version to 0.2.0.4 (Sunset). |
|
| 2128 |
6348 d 12 h |
jermar |
/trunk/ |
Add arm32 architecture. The 32 suffix is used to specify that 16-bit Thumb
instructions are not used. The arm32 code is mostly composed of placeholders
that need to be replaced by real implementation. So far, the arm32 tree
only compiles. If run under GXEmul simulator, an infinit loop at the
kernel entry point will be entered. |
|
| 2125 |
6349 d 11 h |
decky |
/trunk/ |
experimental support for Objective C
(disabled by default) |
|
| 2110 |
6356 d 10 h |
jermar |
/trunk/kernel/arch/ia64/ |
Minor cleanup in ia64. |
|
| 2107 |
6357 d 10 h |
jermar |
/trunk/ |
When clock() is called by an external interrupt dispatched by the IRQ dispatcher,
no spinlock can be held or the kernel will not be preemptive. This fixes Ticket #24.
Formating and indentation fixes. |
|
| 2106 |
6357 d 18 h |
jermar |
/trunk/kernel/ |
Merge as_t structure into one and leave the differring parts in as_genarch_t.
Indentation and formatting changes in header files. |
|
| 2105 |
6361 d 19 h |
decky |
/trunk/kernel/ |
move ipc structures to ipc.h |
|
| 2101 |
6362 d 12 h |
decky |
/trunk/kernel/ |
fix signed/unsigned comparison and integer overflow |
|
| 2100 |
6362 d 13 h |
decky |
/trunk/kernel/ |
signed/unsigned comparison, explicit typecast |
|
| 2099 |
6362 d 13 h |
decky |
/trunk/kernel/arch/ia32/src/ |
explicit cast on pointer arithmetic |
|
| 2097 |
6362 d 13 h |
decky |
/trunk/kernel/arch/ia32/src/smp/ |
fix signed/unsigned comparison |
|
| 2095 |
6362 d 14 h |
decky |
/trunk/kernel/arch/ia32/src/smp/ |
fix signed/unsigned comparison |
|
| 2091 |
6363 d 14 h |
jermar |
/trunk/kernel/arch/sparc64/src/ |
Fix creating the kkbdpoll() kernel thread on sparc64 SMP machines.
This fixes Ticket #19. |
|
| 2089 |
6363 d 18 h |
decky |
/trunk/ |
huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes |
|
| 2087 |
6364 d 14 h |
jermar |
/trunk/kernel/ |
Indentaion and formatting changes even Martin will like :-) |
|
| 2083 |
6369 d 18 h |
decky |
/trunk/kernel/ |
typedef elimination |
|
| 2082 |
6369 d 18 h |
decky |
/trunk/ |
__asm__ __volatile__ -> asm volatile |
|
| 2079 |
6370 d 13 h |
decky |
/trunk/kernel/ |
remove some typedefs in favor of anonymous structures |
|
| 2078 |
6370 d 15 h |
jermar |
/trunk/kernel/arch/sparc64/src/ |
When invalidating entire TLBs on sparc64, make sure to also invalidate any (locked) global entries.
This fixes Ticket #21.
Fix a comment in start.S stating that the kernel installs a global entry for itself. All entries installed by the kernel
are local to some memory context. |
|
| 2076 |
6372 d 19 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 |
6374 d 11 h |
jermar |
/trunk/ |
(c) versus (C) |
|
| 2068 |
6381 d 18 h |
jermar |
/trunk/kernel/ |
Formatting and indentation fixes. |
|
| 2067 |
6384 d 17 h |
jermar |
/trunk/kernel/ |
More formatting changes. |
|
| 2065 |
6388 d 9 h |
jermar |
/trunk/kernel/ |
Coding style fixes and formatting improvements. |
|
| 2064 |
6388 d 10 h |
vana |
/trunk/ |
SIMICS added as a simulator kernel runs on |
|
| 2060 |
6392 d 20 h |
jermar |
/trunk/kernel/arch/ia64/src/ |
Fix typo. |
|
| 2058 |
6400 d 20 h |
jermar |
/trunk/kernel/arch/sparc64/src/ |
Improve comments. |
|
| 2057 |
6401 d 22 h |
jermar |
/trunk/kernel/arch/ |
Fix all remaining mistmatches in width of byte swapping functions for ia64,
ppc32, ppc64, amd64, mips32 and ia32. |
|
| 2056 |
6401 d 23 h |
jermar |
/trunk/kernel/arch/sparc64/include/ |
Fix mismatched byteswapping macros on sparc64. |
|
| 2055 |
6401 d 23 h |
jermar |
/trunk/kernel/arch/sparc64/src/ |
sparc64 work:
- No need to lock kernel stack and userspace window buffer into DTLB. |
|
| 2054 |
6402 d 9 h |
jermar |
/trunk/kernel/ |
Fix important comment in kernel/arch/sparc64/src/proc/scheduler.c.
Improve framebuffer code.
Formatting and indentation fixes. |
|
| 2049 |
6405 d 19 h |
jermar |
/trunk/kernel/arch/sparc64/src/ |
More formatting and indentation changes. |
|
| 2048 |
6406 d 12 h |
jermar |
/trunk/ |
Formatting and indentation changes. |
|
| 2047 |
6408 d 10 h |
jermar |
/trunk/kernel/arch/sparc64/include/ |
Convert sparc64 critical section barriers to RMO memory model.
More portable, no confusion from documentation. |
|
| 2046 |
6408 d 12 h |
jermar |
/trunk/kernel/arch/sparc64/include/ |
Another comment fix. |
|
| 2045 |
6408 d 12 h |
jermar |
/trunk/kernel/arch/sparc64/include/ |
Fix comment. |
|
| 2044 |
6408 d 13 h |
jermar |
/trunk/kernel/arch/sparc64/ |
On sparc64's tick interrupt, adjust the TICK_COMPARE register instead of the TICK
register. The TICK register now increments linearily and can be used by the get_cycle()
function. |
|
| 2043 |
6408 d 13 h |
jermar |
/trunk/kernel/arch/sparc64/src/ |
Make the sparc64 kernel compile again. |
|