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(root)/trunk/kernel/arch/sparc64/src/smp/ipi.c – Rev 2134

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Rev	Age	Author	Path	Log message	Diff
2134	6259 d 5 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	6316 d 11 h	decky	/trunk/	huge type system cleanup remove cyclical type dependencies across multiple header files many minor coding style fixes
2071	6327 d 4 h	jermar	/trunk/	(c) versus (C)
2054	6355 d 2 h	jermar	/trunk/kernel/	Fix important comment in kernel/arch/sparc64/src/proc/scheduler.c. Improve framebuffer code. Formatting and indentation fixes.
2048	6359 d 5 h	jermar	/trunk/	Formatting and indentation changes.
2015	6366 d 4 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.
2009	6371 d 3 h	jermar	/trunk/kernel/	Initial support for handling illegal virtual aliases on sparc64.
1904	6438 d 9 h	jermar	/trunk/kernel/	IPI/cross-call support for sparc64. SMP on sparc64 is now fully supported.
1903	6439 d 4 h	jermar	/trunk/	SMP stuff for sparc64. Almost complete except for IPIs. The absence of IPI support deadlocks the kernel when more CPUs are configured.