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Rev Age Author Path Log message Diff
2149 6296 d 12 h jancik /branches/arm/kernel/arch/arm32/include/  
2148 6296 d 12 h jancik /branches/arm/kernel/doc/  
2147 6296 d 13 h jancik /branches/arm/kernel/arch/arm32/include/ alf: Page table structure  
2146 6296 d 16 h kebrt /branches/arm/kernel/arch/arm32/ small changes for gxemul (elf->binary), OUTPUT_ARCH added  
2145 6296 d 16 h kebrt /branches/arm/boot/arch/arm32/ first version of arm boot loader, still cannot jump to kernel  
2144 6296 d 17 h jermar /trunk/kernel/arch/sparc64/src/mm/ Fix TSB size.  
2143 6296 d 23 h jermar /trunk/kernel/arch/sparc64/include/ Remove unneeded enum member.  
2142 6296 d 23 h jermar /trunk/kernel/generic/include/mm/ Remove out of date comment.  
2141 6297 d 15 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.		  
2140 6297 d 16 h decky /branches/gc/ add garbage collector branch  
2139 6297 d 16 h decky /trunk/contrib/toolchain/ move to GCC 4.1.2, make scripts really host platform independent
remove orphaned libobjc		  
2138 6297 d 18 h decky /trunk/contrib/toolchain/ revert previous change (libobjc is actually HOST platform dependent)  
2137 6297 d 19 h kebrt /branches/arm/contrib/toolchain/ typo  
2136 6297 d 19 h kebrt /branches/arm/kernel/doc/ new developer  
2135 6297 d 23 h stepan /branches/arm/kernel/doc/ test commit  
2134 6298 d 19 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.		  
2133 6298 d 19 h jermar /trunk/kernel/generic/src/mm/ Coding style and indentation fixes.  
2132 6300 d 2 h jermar /trunk/kernel/generic/src/mm/ Fix coding style in the address space area backends.  
2131 6300 d 22 h decky /branches/ add development branches  
2130 6333 d 16 h jermar /tags/0.2.0.4/ Tagging 0.2.0.4 release.  

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