205 commits

Author	SHA1	Message	Date
Robert Morris	46744c4a13	for spinlocks, use gcc intrinsics, but say what they compile to	2019-06-13 10:00:50 -04:00
Robert Morris	ca39672a30	clean up virtio code	2019-06-13 09:40:17 -04:00
Robert Morris	4adf016925	eliminate ramdisk	2019-06-13 06:57:38 -04:00
Robert Morris	de9d72c908	virtio disk driver	2019-06-13 06:49:02 -04:00
Robert Morris	5753553213	separate source into kernel/ user/ mkfs/	2019-06-11 09:57:14 -04:00