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Rev Age Author Path Log message Diff
2172 6339 d 4 h kebrt /branches/arm/kernel/arch/arm32/src/ memcpy added  
2171 6339 d 4 h kebrt /branches/arm/kernel/arch/arm32/ memcpy added  
2170 6339 d 15 h jermar /trunk/kernel/ Simplify synchronization in as_switch().
The function was oversynchronized, which
was causing deadlocks on the address
space mutex.

Now, address spaces can only be switched
when the asidlock is held. This also protects
stealing of ASIDs. No other synchronization
is necessary.
 
2169 6339 d 16 h kebrt /branches/arm/kernel/arch/arm32/src/ debug print added  
2168 6339 d 16 h kebrt /branches/arm/kernel/arch/arm32/ context save/restore added  
2167 6339 d 16 h kebrt /branches/arm/kernel/arch/arm32/src/ debugging printf added  
2166 6339 d 16 h kebrt /branches/arm/kernel/arch/arm32/include/ context added  
2165 6339 d 16 h kebrt /branches/arm/boot/arch/arm32/loader/ indenting  
2164 6340 d 18 h jancik /branches/arm/tools/ ALf: correction .. wrong version previosly commited  
2163 6340 d 18 h jancik /branches/arm/kernel/arch/arm32/ Alf : TLB support  
2162 6341 d 1 h stepan /branches/arm/kernel/arch/arm32/ interrupt enabling/disabling  
2161 6341 d 18 h jermar /trunk/kernel/arch/sparc64/src/mm/ Fix TSB bug during TSB refill.
When one wants to enable a TSB entry, he or she should set the
entry invalid bit to false, as opposed to setting it to true.
 
2160 6341 d 18 h decky /trunk/boot/arch/ remove duplicate dependency  
2159 6341 d 23 h kebrt /branches/arm/kernel/arch/arm32/ kernel_image_start, arch_pre_main added  
2158 6341 d 23 h kebrt /branches/arm/boot/arch/arm32/loader/ __builtin_memcpy used  
2157 6342 d 1 h jancik /branches/arm/tools/ Cygwin with TurtoiseSVN has problem with symlinks ... this script solves this.

Run this after downloading sources and before compilation.

Alf
 
2156 6342 d 1 h kebrt /branches/arm/boot/generic/ link added  
2155 6342 d 3 h kebrt /branches/arm/kernel/arch/arm32/ kernel init now only halts the simulator  
2154 6342 d 3 h kebrt /branches/arm/boot/arch/arm32/loader/ jump to kernel fixed  
2153 6342 d 3 h kebrt /branches/arm/boot/arch/arm32/loader/ memcpy changed to gcc-generated  
2152 6342 d 3 h kebrt /branches/arm/boot/arch/arm32/loader/ comments  
2151 6342 d 3 h kebrt /branches/arm/boot/arch/arm32/loader/ missing dependencies  
2150 6342 d 5 h kebrt /branches/arm/boot/genarch/ softint added to boot  
2149 6342 d 11 h jancik /branches/arm/kernel/arch/arm32/include/  
2148 6342 d 11 h jancik /branches/arm/kernel/doc/  
2147 6342 d 11 h jancik /branches/arm/kernel/arch/arm32/include/ alf: Page table structure  
2146 6342 d 14 h kebrt /branches/arm/kernel/arch/arm32/ small changes for gxemul (elf->binary), OUTPUT_ARCH added  
2145 6342 d 14 h kebrt /branches/arm/boot/arch/arm32/ first version of arm boot loader, still cannot jump to kernel  
2144 6342 d 15 h jermar /trunk/kernel/arch/sparc64/src/mm/ Fix TSB size.  
2143 6342 d 21 h jermar /trunk/kernel/arch/sparc64/include/ Remove unneeded enum member.  
2142 6342 d 22 h jermar /trunk/kernel/generic/include/mm/ Remove out of date comment.  
2141 6343 d 13 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 6343 d 14 h decky /branches/gc/ add garbage collector branch  
2139 6343 d 15 h decky /trunk/contrib/toolchain/ move to GCC 4.1.2, make scripts really host platform independent
remove orphaned libobjc
 
2138 6343 d 17 h decky /trunk/contrib/toolchain/ revert previous change (libobjc is actually HOST platform dependent)  
2137 6343 d 17 h kebrt /branches/arm/contrib/toolchain/ typo  
2136 6343 d 18 h kebrt /branches/arm/kernel/doc/ new developer  
2135 6343 d 22 h stepan /branches/arm/kernel/doc/ test commit  
2134 6344 d 18 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 6344 d 18 h jermar /trunk/kernel/generic/src/mm/ Coding style and indentation fixes.