NetBSD

History

uebayasi 77d80f38cd Abstraction fix; move physical address -> per-page metadata (struct vm_page ) "reverse" lookup code from uvm_page.h to uvm_page.c, to help migration to not do that. Likewise move per-page metadata (struct vm_page ) -> physical address "forward" conversion code into *.c too. This is called only low-layer VM and MD code.		2010-11-12 05:23:41 +00:00
..
dev	Attach swsensor only once (it attaches automatically via MODULE	2010-10-20 18:48:13 +00:00
fs	Descend into nfsserver, i.e. build & install the kernel nfs server bits.	2010-07-26 15:55:41 +00:00
include	+posix_fadvise	2010-11-11 14:48:13 +00:00
kern	support zlib	2010-06-21 21:43:28 +00:00
librump	Abstraction fix; move physical address -> per-page metadata (struct	2010-11-12 05:23:41 +00:00
net	support compat ioctl's (OOOOOlalaSIOC stuff)	2010-11-07 19:47:18 +00:00
Makefile	Add infrastructure for kern compnents. This is meant for those	2010-06-10 21:56:42 +00:00
Makefile.rump	Limit visibility of _RUMPKERNEL to prevent abuse.	2010-05-11 21:08:07 +00:00
README.dirs	update slightly	2010-05-11 11:58:14 +00:00
TODO	update a bit	2009-11-26 10:10:50 +00:00
ldscript.rump	Introduce RUMP_COMPONENT. It behaves mostly like a simplified	2010-03-01 13:12:19 +00:00

README.dirs

	$NetBSD: README.dirs,v 1.11 2010/05/11 11:58:14 pooka Exp $


The following is a quick rundown of the current directory structure.
First, components in the kernel namespace, i.e. compiled with -D_KERNEL

sys/rump/librump - kernel runtime emulation
  /rumpkern	- kernel core, e.g. syscall, interrupt and lock support

  /rumpcrypto	- kernel cryptographic routines
  /rumpdev	- device support, e.g. autoconf subsystem
  /rumpnet	- networking support and sockets layer
  /rumpvfs	- file system support

sys/rump/include
  /machine - used for architectures where the rump ABI is not yet the
	     same as the kernel module ABI.  will eventually disappear
	     completely
  /rump    - rump headers installed to userspace

sys/rump/dev - device components, e.g. audio, raidframe, usb drivers

sys/rump/fs - file system components
  /lib/lib${fs}  - kernel file system code

sys/rump/net - networking components
  /lib/libnet	  - subroutines from sys/net, e.g. route and if_ethersubr
  /lib/libnetinet - TCP/IP
  /lib/libvirtif  - a virtual interface which uses host tap(4) to shovel
		    packets.  This is used by netinet and if_ethersubr.
  /lib/libsockin  - implements PF_INET using host kernel sockets.  This is
		    mutually exclusive with net, netinet and virtif.



The rest are out-of-kernel components (i.e. no -D_KERNEL)
related to rump.

hypercall interface:
src/lib/librumpuser
  The "rumpuser" set of interfaces is used by rump to communicate
  with the host.

Users:
src/lib
  /libp2k  - puffs-to-vfs adaption layer, userspace namespace
  /libukfs - user kernel file system, a library to access file system
	     images (or devices) directly in userspace without going
	     through a system call and puffs.  It provides a slightly
	     higher interface than pure rump syscalls.

src/usr.sbin/puffs
  rump_$fs - userspace file system daemons using the kernel fs code

src/share/examples/rump
  Various examples detailing use of rump in different scenarios.
  These are provided source-only.