| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 4605 |
5604 d 13 h |
decky |
/branches/snapshot/ |
add task snapshoting branch |
|
| 4490 |
5633 d 7 h |
decky |
/trunk/kernel/ |
remove redundant index_t and count_t types (which were always quite ambiguous and not actually needed) |
|
| 4277 |
5683 d 11 h |
jermar |
/trunk/kernel/arch/sparc64/ |
On sparc64, do fast indentity mapping only for physical memory.
For addresses above physical memory, such as I/O devices,
fall through to the C miss handler and map the memory noncacheably.
Replace deprecated Bicc instructions with proper Bcc instructions. |
|
| 3973 |
5729 d 15 h |
decky |
/trunk/kernel/ |
kernel memory management revisited (phase 2): map physical memory according to zones
- ia32: register reserved and ACPI zones
- pareas are now used only for mapping of present physical memory (hw_area() is gone)
- firmware zones and physical addresses outside any zones are allowed to be mapped generally
- fix nasty antient bug in zones_insert_zone() |
|
| 3908 |
5740 d 8 h |
decky |
/trunk/ |
overhaul pareas: use one single physical area for the physical address space not belonging to physical memory |
|
| 3672 |
5813 d 7 h |
jermar |
/trunk/ |
Merge sparc branch to trunk. |
|
| 3233 |
5944 d 11 h |
decky |
/trunk/ |
remove dummy page coloring facility, which is currenty not used |
|
| 3145 |
5986 d 18 h |
jermar |
/trunk/kernel/arch/sparc64/include/ |
On sparc64, when the operand to the FLUSH instruction doesn't matter, the
instruction's semantics is to flush the pipeline. |
|
| 3133 |
5988 d 6 h |
jermar |
/trunk/kernel/arch/ |
Add smc_coherence() macro to all architectures.
So far, only amd64, ia32, ia64 and sparc64 are implemented. |
|
| 2725 |
6116 d 12 h |
decky |
/trunk/kernel/ |
remove config.memory_size, get_memory_size() and memory_init.{c|d}
the amount of available memory can be calculated from the sizes of the zones
add FRAMES2SIZE, SIZE2KB and SIZE2MB functions/macros (code readability) |
|
| 2721 |
6117 d 13 h |
decky |
/trunk/kernel/ |
convert e820list to a generic physmem command |
|
| 2231 |
6419 d 10 h |
jermar |
/trunk/kernel/arch/sparc64/ |
Fix a nasty bug in the TLB miss handlers on sparc64.
After we no longer lock the kernel stack in the DTLB,
there is a real danger of nested DTLB misses. The nested
miss can very easily clobber the DTLB Tag Access register.
Therefore, the original miss may not read this register, but
it has to receive its value as an argument. The argument
value is saved in the trap table when it is guaranteed that
the nested TLB miss will not occur. |
|
| 2141 |
6432 d 3 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 |
6433 d 7 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. |
|
| 2106 |
6484 d 13 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 |
6488 d 14 h |
decky |
/trunk/kernel/ |
move ipc structures to ipc.h |
|
| 2089 |
6490 d 13 h |
decky |
/trunk/ |
huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes |
|
| 2076 |
6499 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 |
6501 d 6 h |
jermar |
/trunk/ |
(c) versus (C) |
|
| 2068 |
6508 d 13 h |
jermar |
/trunk/kernel/ |
Formatting and indentation fixes. |
|