xv6-riscv - MIT xv6-RISCV kernel modified to RV64I base integer extension

Age	Commit message (Collapse)	Author
2010-09-02	Simplify allocuvm/deallocuvm to operate in a contiguous memory model. This ↵	Austin Clements
	makes their interface match up better with proc->sz and also simplifies the callers (it even gets the main body of exec on one page).
2010-09-01	Remove the stack guard page. Processes are now contiguous from 0 to ↵	Austin Clements
	proc->sz, which means our syscall argument validation is correct. Add a pointer validation test and remove the stack test, which tested for the guard page.
2010-09-01	Tab police	Austin Clements

2010-08-06	fix corner cases in exec of ELF	Robert Morris
	put an invalid page below the stack have fork() handle invalid pages
2010-07-23	a few nits	Frans Kaashoek
	passes all tests on two-processor smp
2010-07-23	Checkpoint page-table version for SMP	Frans Kaashoek
	Includes code for TLB shootdown (which actually seems unnecessary for xv6)
2010-07-02	Initial version of single-cpu xv6 with page tables	Frans Kaashoek

2009-08-30	assorted fixes:	Russ Cox
	* rename c/cp to cpu/proc * rename cpu.context to cpu.scheduler * fix some comments * formatting for printout
2009-08-08	shuffle and tweak for formatting.	Russ Cox
	pdf has very good page breaks now. would be a good copy for fall 2009.
2009-07-13	exec tweaks	Russ Cox

2009-05-31	exec sanity check	rsc

2009-05-31	Some proc cleanup, moving some of copyproc into allocproc.	rsc
	Also, an experiment: use "thread-local" storage for c and cp instead of the #define macro for curproc[cpu()].
2007-08-30	oops - broke arg counting	rsc

2007-08-28	oops	rsc

2007-08-27	delete unnecessary #include lines	rsc

2007-08-27	Edit exec.	rsc
	Do not commit to new memory image until nothing can go wrong, avoiding bad2 case. Be sure to allocate enough stack space for argv. Load executable before initializing stack, to keep ELF loops together. Make argv loop clearer.
2007-08-24	Remove struct uinode.	rsc
	Remove type arg to mknod (assume T_DEV).
2007-08-22	PDF at http://am.lcs.mit.edu/~rsc/xv6.pdf	rsc
	Various changes made while offline. + bwrite sector argument is redundant; use b->sector. + reformatting of files for nicer PDF page breaks + distinguish between locked, unlocked inodes in type signatures + change FD_FILE to FD_INODE + move userinit (nee proc0init) to proc.c + move ROOTDEV to param.h + always parenthesize sizeof argument
2007-08-21	Various cleanup:	rsc
	- Got rid of dummy proc[0]. Now proc[0] is init. - Added initcode.S to exec /init, so that /init is just a regular binary. - Moved exec out of sysfile to exec.c - Moved code dealing with fs guts (like struct inode) from sysfile.c to fs.c. Code dealing with system call arguments stays in sysfile.c - Refactored directory routines in fs.c; should be simpler. - Changed iget to return unlocked inode structure. This solves the lookup-then-use race in namei without introducing deadlocks. It also enabled getting rid of the dummy proc[0].