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

Age	Commit message (Collapse)	Author
2019-05-31	-initrd fs.img, ramdisk.c, file system	Robert Morris

2017-08-09	Commit to running on an SMP (perhaps with only 1 core). Remove most code	Frans Kaashoek
	from picirq.c and remove timer.c completely. Update runoff.list.
2017-01-31	Start of an experiment to remove the use of gs for cpu local variables.	Frans Kaashoek

2016-09-11	Straight replacement of B_BUSY with a sleeping lock.	Frans Kaashoek

2016-08-25	Remove trailing white space with:	Frans Kaashoek
	for f in .{h,c}; do sed -i .sed 's/[[:blank:]]$//' $f; done (Thanks to Nicolás Wolovick)
2016-08-18	Small change to support RWMUL and WRMUL. Now xv6 truly works with a block size	Frans Kaashoek
	that is a multiple of the sector size.
2015-04-10	check blockno passed to idestart	Frans Kaashoek

2015-04-03	Disentangle block size from the disk's sector size. Set block size to 1024 ↵	Frans Kaashoek
	to show that they can be different. Clean up mkfs, simplifying specifying fs parameters, remove some redundancy between fs and mkfs, and fix disk layout bugs. Call blocks in the file system blocks instead of sectors. Passes usertests for different block sizes.
2012-08-28	make the book happy	Robert Morris

2011-10-11	clarify some FS comments	Robert Morris

2011-08-29	Revert "Introduce and use sleeplocks instead of BUSY flags"	Frans Kaashoek
	My changes have a race with re-used bufs and the code doesn't seem to get shorter Keep the changes that fixed ip->off race This reverts commit 3a5fa7ed9020eaf8ab843a16d26db7393b2ec072. Conflicts: defs.h file.c file.h
2011-08-26	Introduce and use sleeplocks instead of BUSY flags	Frans Kaashoek
	Remove I_BUSY, B_BUSY, and intrans defs and usages One spinlock per buf to avoid ugly loop in bget fix race in filewrite (don't update f->off after releasing lock)
2011-08-25	Make cross reference with text work	Frans Kaashoek

2011-07-29	Map kernel high	Frans Kaashoek
	Very important to give qemu memory through PHYSTOP :(
2011-02-19	xv6: formatting, cleanup, rev5 (take 2)	Russ Cox

2011-01-11	make new code like old code	Russ Cox
	Variable declarations at top of function, separate from initialization. Use == 0 instead of ! for checking pointers. Consistent spacing around {, *, casts. Declare 0-parameter functions as (void) not (). Integer valued functions return -1 on failure, 0 on success.
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
2009-05-31	group locks into structs they protect.	rsc
	few naming nits.
2009-05-31	ide.c: make names more regular	rsc

2009-03-08	be consistent: no underscores in function names	rsc

2007-08-30	make new Homework 8 work	rtm

2007-08-28	comments; rename irq_ to pic_	rsc

2007-08-28	spaces around else for rtm	rsc

2007-08-28	nits	rsc

2007-08-28	comment non-check of cp->killed	rsc

2007-08-27	delete unnecessary #include lines	rsc

2007-08-27	Another attempt at the bio.c comment.	rsc
	Rename B_WRITE to B_DIRTY and then let ide.c maintain the B_VALID and B_DIRTY flags.
2007-08-24	minor cleanups	rsc

2007-08-24	comment nits	rtm

2007-08-24	simplify ide queuing	rtm
	nits in comments
2007-08-14	formatting, sleep bug fix	rsc

2007-08-14	ide_write unused => gone	rsc

2006-09-08	move ide_intr lower	rsc

2006-09-07	fix disk bug	rsc

2006-09-07	fix ide, pit interfaces	rsc

2006-09-07	comments	rsc

2006-09-07	run without lapic and ioapic, if they are not present	kaashoek
	if no lapic available, use 8253pit for clock now xv6 runs both on qemu (uniprocessor) and bochs (uniprocessor and MP)
2006-09-06	more named constants	rsc

2006-09-06	more tabs go away	rsc

2006-09-06	no /* */ comments	rsc

2006-09-06	standardize various * conventions	rsc

2006-09-06	spacing fixes: no tabs, 2-space indents (for rtm)	rsc

2006-09-03	remove duplication	kaashoek
	don't use the same name for two different pieces of code
2006-08-30	complain if no disk 1	rtm
	lots of cleanup
2006-08-13	link()	rtm

2006-08-10	interrupts could be recursive since lapic_eoi() called before rti	rtm
	so fast interrupts overflow the kernel stack fix: cli() before lapic_eoi()
2006-08-10	low-level keyboard input (not hooked up to /dev yet)	rtm
	fix acquire() to cli() before incrementing nlock make T_SYSCALL a trap gate, not an interrupt gate sadly, various crashes if you hold down a keyboard key...
2006-08-09	iread for T_DEV	kaashoek
	O_RDWR, etc. create file
2006-08-08	fix race in holding() check in acquire()	rtm
	give cpu1 a TSS and gdt for when it enters scheduler() and a pseudo proc[] entry for each cpu cpu0 waits for each other cpu to start up read() for files