Subversion Repositories HelenOS

Rev

Show changed files | Directory listing | RSS feed

Filtering Options

Rev Age Author Path Log message Diff
4348 6174 d 11 h svoboda /branches/dynload/ Merge latest trunk changes to dynload.  
4346 6175 d 22 h svoboda /branches/dynload/ Merge trunk changes up to r4145 to dynload.  
4343 6175 d 23 h svoboda /branches/dynload/ Merged trunk changes up to r3925 to dynload.  
4339 6176 d 0 h svoboda /branches/dynload/ Merge trunk changes up to r3802 to dynload.  
4338 6176 d 0 h svoboda /branches/dynload/ Merge trunk changes up to r3787 to dynload.  
3674 6320 d 22 h svoboda /branches/dynload/ Merge latest trunk changes to dynload.  
3535 6355 d 2 h svoboda /branches/dynload/ Merge latest trunk changes into dynload.  
3474 6393 d 5 h svoboda /branches/dynload/ Merge latest trunk changes into dynload.  
3149 6493 d 7 h svoboda /branches/dynload/ Merge trunk changes up to r3071 into dynload (broken)  
2927 6525 d 10 h decky /branches/dynload/ added dynload branch  
2610 6706 d 3 h jermar /trunk/ Support for six syscall arguments for sparc64.
There is a minor stability issue which needs to be fixed (kernel panics upon entering kconsole from the
console task).		  
2462 6868 d 23 h jermar /trunk/kernel/ Replace gcc-specific __FUNCTION__ with C99 __func__.
suncc's xregs=no%float can be used only on sparc64.		  
2141 6939 d 20 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 6941 d 0 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.		  
2089 6998 d 6 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes		  
2071 7008 d 23 h jermar /trunk/ (c) versus (C)  
2058 7035 d 8 h jermar /trunk/kernel/arch/sparc64/src/ Improve comments.  
2055 7036 d 12 h jermar /trunk/kernel/arch/sparc64/src/ sparc64 work:
- No need to lock kernel stack and userspace window buffer into DTLB.		  
2054 7036 d 22 h jermar /trunk/kernel/ Fix important comment in kernel/arch/sparc64/src/proc/scheduler.c.

Improve framebuffer code.

Formatting and indentation fixes.		  
2015 7047 d 23 h jermar /trunk/ Rework support for virtually indexed cache.
Instead of repeatedly flushing the data cache, which was a huge overkill, refuse to create an illegal address alias
in the kernel (again) and allocate appropriate page color in userspace instead. Extend the detection also to
SYS_PHYSMEM_MAP syscall.

Add support for tracking physical memory areas mappable by SYS_PHYSMEM_MAP.

Lots of coding style changes.		  

←Prev12Next→

Show All