freebsd-dev/sys/riscv/conf
Ruslan Bukin 5f8228b2f3 o Remove operation in machine mode.
Machine privilege level was specially designed to use in vendor's
  firmware or bootloader. We have implemented operation in machine
  mode in FreeBSD as part of understanding RISC-V ISA, but it is time
  to remove it.
  We now use BBL (Berkeley Boot Loader) -- standard RISC-V firmware,
  which provides operation in machine mode for us.
  We now use standard SBI calls to machine mode, instead of handmade
  'syscalls'.
o Remove HTIF bus.
  HTIF bus is now legacy and no longer exists in RISC-V specification.
  HTIF code still exists in Spike simulator, but BBL do not provide
  raw interface to it.
  Memory disk is only choice for now to have multiuser booted in Spike,
  until Spike has implemented more devices (e.g. Virtio, etc).

Sponsored by:	DARPA, AFRL
Sponsored by:	HEIF5
2016-08-10 12:41:36 +00:00
..
DEFAULTS
GENERIC o Remove operation in machine mode. 2016-08-10 12:41:36 +00:00
LOWRISC o Add device tree files and kernel configuration files 2016-04-26 13:22:08 +00:00
LOWRISC.hints o Add device tree files and kernel configuration files 2016-04-26 13:22:08 +00:00
QEMU o Remove operation in machine mode. 2016-08-10 12:41:36 +00:00
ROCKET o Remove operation in machine mode. 2016-08-10 12:41:36 +00:00
SPIKE o Remove operation in machine mode. 2016-08-10 12:41:36 +00:00