135e2/xv6-labs.git - xv6-labs-2024-winter

Age	Commit message (Collapse)	Author	Files	Lines
2022-09-18	Remove unused PLIC_M* macros	Frans Kaashoek	1	-3/+0

2020-10-03	Clarify CLINT and PLIC acronym	Frans Kaashoek	1	-2/+2

2020-08-10	rename p->tf to p->trapframe, for consistency with p->context	Robert Morris	1	-1/+1

2019-07-30	cut ramdisk	Robert Morris	1	-3/+0

2019-07-25	comments for timer setup	Robert Morris	1	-1/+1

2019-07-23	simplify kernel mapping calls	Robert Morris	1	-0/+3

2019-07-22	-MD and TRAPFRAME	Robert Morris	1	-1/+12

2019-07-22	Allocate 2 pages per proc, with the top one unmapped.	Frans Kaashoek	1	-1/+1
	The page below the last proc is unmapped by default (because the kernel doesn't map anything right below the kernel stacks).
2019-07-19	One way of supporting a guard page below kstack: allocate kstacks in	Frans Kaashoek	1	-0/+1
	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).
2019-06-13	clean up virtio code	Robert Morris	1	-2/+2

2019-06-13	eliminate ramdisk	Robert Morris	1	-0/+1

2019-06-13	virtio disk driver	Robert Morris	1	-1/+5

2019-06-11	separate source into kernel/ user/ mkfs/	Robert Morris	1	-0/+50