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HelenOS
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0.3.0
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kernel
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arch
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sparc64/
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2143
6342 d 6 h
jermar
/trunk/kernel/arch/sparc64/include/
Remove unneeded enum member.
2141
6342 d 22 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
6344 d 3 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
6379 d 1 h
jermar
/trunk/
Fix small problem in sparc64 port.
Bump version to 0.2.0.4 (Sunset).
2125
6387 d 2 h
decky
/trunk/
experimental support for Objective C
(disabled by default)
2107
6395 d 1 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
6395 d 9 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
6399 d 9 h
decky
/trunk/kernel/
move ipc structures to ipc.h
2091
6401 d 5 h
jermar
/trunk/kernel/arch/sparc64/src/
Fix creating the kkbdpoll() kernel thread on sparc64 SMP machines.
This fixes Ticket #19.
2089
6401 d 9 h
decky
/trunk/
huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes
2083
6407 d 9 h
decky
/trunk/kernel/
typedef elimination
2082
6407 d 9 h
decky
/trunk/
__asm__ __volatile__ -> asm volatile
2079
6408 d 3 h
decky
/trunk/kernel/
remove some typedefs in favor of anonymous structures
2078
6408 d 5 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
6410 d 10 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
6412 d 2 h
jermar
/trunk/
(c) versus (C)
2068
6419 d 9 h
jermar
/trunk/kernel/
Formatting and indentation fixes.
2067
6422 d 7 h
jermar
/trunk/kernel/
More formatting changes.
2065
6426 d 0 h
jermar
/trunk/kernel/
Coding style fixes and formatting improvements.
2058
6438 d 11 h
jermar
/trunk/kernel/arch/sparc64/src/
Improve comments.
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