Subversion Repositories HelenOS

Rev

Go to most recent revision | Show changed files | Details | Compare with Previous | Blame | RSS feed

Filtering Options

Rev Age Author Path Log message Diff
2144 6265 d 10 h jermar /trunk/kernel/arch/sparc64/src/mm/ Fix TSB size.  
2143 6265 d 16 h jermar /trunk/kernel/arch/sparc64/include/ Remove unneeded enum member.  
2141 6266 d 8 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 6267 d 13 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 6302 d 11 h jermar /trunk/ Fix small problem in sparc64 port.

Bump version to 0.2.0.4 (Sunset).		  
2128 6309 d 13 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.		  
2125 6310 d 12 h decky /trunk/ experimental support for Objective C
(disabled by default)		  
2110 6317 d 11 h jermar /trunk/kernel/arch/ia64/ Minor cleanup in ia64.  
2107 6318 d 11 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 6318 d 19 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 6322 d 19 h decky /trunk/kernel/ move ipc structures to ipc.h  
2101 6323 d 13 h decky /trunk/kernel/ fix signed/unsigned comparison and integer overflow  
2100 6323 d 13 h decky /trunk/kernel/ signed/unsigned comparison, explicit typecast  
2099 6323 d 14 h decky /trunk/kernel/arch/ia32/src/ explicit cast on pointer arithmetic  
2097 6323 d 14 h decky /trunk/kernel/arch/ia32/src/smp/ fix signed/unsigned comparison  
2095 6323 d 14 h decky /trunk/kernel/arch/ia32/src/smp/ fix signed/unsigned comparison  
2091 6324 d 15 h jermar /trunk/kernel/arch/sparc64/src/ Fix creating the kkbdpoll() kernel thread on sparc64 SMP machines.
This fixes Ticket #19.		  
2089 6324 d 19 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes		  
2087 6325 d 15 h jermar /trunk/kernel/ Indentaion and formatting changes even Martin will like :-)  
2083 6330 d 19 h decky /trunk/kernel/ typedef elimination  

←Prev12Next→

Show All