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

Age	Commit message (Collapse)	Author
2019-10-27	fix a potential memory leak	Robert Morris

2019-09-20	yet another sbrk() bug fix, and usertest	Robert Morris

2019-09-20	don't panic if a program frees all its memory with sbrk().	Robert Morris
	if a program sbrk()'s to a non-page-boundary, don't free that page. corresponding usertests.
2019-09-20	more incorrect cast to uint	Robert Morris

2019-09-20	fix a potential kernel crash	Robert Morris
	add a regression test for it
2019-09-17	all of PTE_FLAGS	Robert Morris

2019-09-03	sfence_vma after satp	Robert Morris

2019-07-26	Merge branch 'riscv' of g.csail.mit.edu:xv6-dev into riscv	Robert Morris

2019-07-26	trampin -> uservec	Robert Morris
	trampout -> userret
2019-07-25	a few name changes in panic msg	Frans Kaashoek

2019-07-24	rationalize some vm function names	Robert Morris

2019-07-24	no more PAGEBREAK	Robert Morris

2019-07-23	simplify kernel mapping calls	Robert Morris

2019-07-22	fix mapkstack	Frans Kaashoek

2019-07-22	Clear U bit for second stack page so that it functions as a guard page	Frans Kaashoek

2019-07-22	nit	Robert Morris

2019-07-19	x	Frans Kaashoek

2019-07-19	One way of supporting a guard page below kstack: allocate kstacks in	Frans Kaashoek
	procinit() and map them high up (below TRAMPOLNE) with an empty mapping below each stack. Never free a kernel stack. Another way would be to allocate and map them dynamically, but then we need to reload page table when switching processes in scheduler() and/or have a kernel pagetable per proc (if we want k->stack to be the same virtual address in each process). One gotcha: kernel addresses are not equal to physical addresses for stack addresses. A stack address must be translated if we need its physical address (e.g., virtio passes a stack address to the disk).
2019-07-16	conservatively call sfence.vma before every satp load.	Robert Morris

2019-07-02	try to continue from walk() failing to allocate a page-table page	Robert Morris

2019-07-02	COW tests	Robert Morris

2019-07-01	have fork() fail, not panic, if not enough phys mem	Robert Morris

2019-06-13	clean up virtio code	Robert Morris

2019-06-13	eliminate ramdisk	Robert Morris

2019-06-13	virtio disk driver	Robert Morris

2019-06-11	separate source into kernel/ user/ mkfs/	Robert Morris