Subversion Repositories HelenOS

Rev

Go to most recent revision | Show changed files | Directory listing | RSS feed

Filtering Options

Rev Age Author Path Log message Diff
2160 6394 d 6 h decky /trunk/boot/arch/ remove duplicate dependency  
2159 6394 d 11 h kebrt /branches/arm/kernel/arch/arm32/ kernel_image_start, arch_pre_main added  
2158 6394 d 11 h kebrt /branches/arm/boot/arch/arm32/loader/ __builtin_memcpy used  
2157 6394 d 13 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 6394 d 14 h kebrt /branches/arm/boot/generic/ link added  
2155 6394 d 15 h kebrt /branches/arm/kernel/arch/arm32/ kernel init now only halts the simulator  
2154 6394 d 15 h kebrt /branches/arm/boot/arch/arm32/loader/ jump to kernel fixed  
2153 6394 d 15 h kebrt /branches/arm/boot/arch/arm32/loader/ memcpy changed to gcc-generated  
2152 6394 d 15 h kebrt /branches/arm/boot/arch/arm32/loader/ comments  
2151 6394 d 16 h kebrt /branches/arm/boot/arch/arm32/loader/ missing dependencies  
2150 6394 d 18 h kebrt /branches/arm/boot/genarch/ softint added to boot  
2149 6394 d 23 h jancik /branches/arm/kernel/arch/arm32/include/  
2148 6394 d 23 h jancik /branches/arm/kernel/doc/  
2147 6395 d 0 h jancik /branches/arm/kernel/arch/arm32/include/ alf: Page table structure  
2146 6395 d 3 h kebrt /branches/arm/kernel/arch/arm32/ small changes for gxemul (elf->binary), OUTPUT_ARCH added  
2145 6395 d 3 h kebrt /branches/arm/boot/arch/arm32/ first version of arm boot loader, still cannot jump to kernel  
2144 6395 d 4 h jermar /trunk/kernel/arch/sparc64/src/mm/ Fix TSB size.  
2143 6395 d 10 h jermar /trunk/kernel/arch/sparc64/include/ Remove unneeded enum member.  
2142 6395 d 10 h jermar /trunk/kernel/generic/include/mm/ Remove out of date comment.  
2141 6396 d 2 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 6396 d 3 h decky /branches/gc/ add garbage collector branch  
2139 6396 d 3 h decky /trunk/contrib/toolchain/ move to GCC 4.1.2, make scripts really host platform independent
remove orphaned libobjc
 
2138 6396 d 5 h decky /trunk/contrib/toolchain/ revert previous change (libobjc is actually HOST platform dependent)  
2137 6396 d 6 h kebrt /branches/arm/contrib/toolchain/ typo  
2136 6396 d 6 h kebrt /branches/arm/kernel/doc/ new developer  
2135 6396 d 10 h stepan /branches/arm/kernel/doc/ test commit  
2134 6397 d 6 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 6397 d 6 h jermar /trunk/kernel/generic/src/mm/ Coding style and indentation fixes.  
2132 6398 d 13 h jermar /trunk/kernel/generic/src/mm/ Fix coding style in the address space area backends.  
2131 6399 d 9 h decky /branches/ add development branches  
2130 6432 d 3 h jermar /tags/0.2.0.4/ Tagging 0.2.0.4 release.  
2129 6432 d 5 h jermar /trunk/ Fix small problem in sparc64 port.

Bump version to 0.2.0.4 (Sunset).
 
2128 6439 d 6 h jermar /trunk/ Add arm32 architecture. The 32 suffix is used to specify that 16-bit Thumb
instructions are not used. The arm32 code is mostly composed of placeholders
that need to be replaced by real implementation. So far, the arm32 tree
only compiles. If run under GXEmul simulator, an infinit loop at the
kernel entry point will be entered.
 
2127 6439 d 16 h decky /trunk/kernel/generic/src/lib/ add forgotten implementation  
2126 6440 d 3 h decky /trunk/kernel/ small cleanup, more work coming  
2125 6440 d 6 h decky /trunk/ experimental support for Objective C
(disabled by default)
 
2124 6440 d 7 h decky /trunk/kernel/generic/ implement simple realloc()  
2123 6446 d 10 h decky /trunk/kernel/generic/src/mm/ add forgotten unsigned  
2122 6446 d 10 h decky /trunk/kernel/generic/ explicit typecast, fix signed/unsigned comparison  
2121 6446 d 10 h decky /trunk/kernel/generic/src/mm/ remove anonymous structure, add static qualifier