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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
6335 d 6 h
jermar
/trunk/kernel/arch/sparc64/include/
Remove unneeded enum member.
2141
6335 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
6337 d 2 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
6372 d 1 h
jermar
/trunk/
Fix small problem in sparc64 port.
Bump version to 0.2.0.4 (Sunset).
2125
6380 d 1 h
decky
/trunk/
experimental support for Objective C
(disabled by default)
2107
6388 d 0 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
6388 d 8 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
6392 d 9 h
decky
/trunk/kernel/
move ipc structures to ipc.h
2091
6394 d 4 h
jermar
/trunk/kernel/arch/sparc64/src/
Fix creating the kkbdpoll() kernel thread on sparc64 SMP machines.
This fixes Ticket #19.
2089
6394 d 8 h
decky
/trunk/
huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes
2083
6400 d 8 h
decky
/trunk/kernel/
typedef elimination
2082
6400 d 8 h
decky
/trunk/
__asm__ __volatile__ -> asm volatile
2079
6401 d 3 h
decky
/trunk/kernel/
remove some typedefs in favor of anonymous structures
2078
6401 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
6403 d 9 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
6405 d 1 h
jermar
/trunk/
(c) versus (C)
2068
6412 d 8 h
jermar
/trunk/kernel/
Formatting and indentation fixes.
2067
6415 d 7 h
jermar
/trunk/kernel/
More formatting changes.
2065
6418 d 23 h
jermar
/trunk/kernel/
Coding style fixes and formatting improvements.
2058
6431 d 10 h
jermar
/trunk/kernel/arch/sparc64/src/
Improve comments.
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