Files
xen/extras/mini-os
Keir Fraser d5c277ab26 minios: reverse layering of xc vs minios fd close
Having minios close() call back into the libxc core close routines is
backwards and unexpected. On every other OS the libxc core close
routine calls close().

Export minios specific functions from the minios libxc code to
implement fd closing for each type of xc file handle and simply call
close() in the core close routine.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
2010-12-03 06:37:48 +00:00
..
2009-10-01 12:28:54 +01:00
2009-10-01 12:28:54 +01:00
2009-10-01 12:28:54 +01:00
2008-07-04 17:47:11 +01:00
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2008-12-18 11:27:37 +00:00
2009-10-01 12:28:54 +01:00
2008-03-19 16:20:44 +00:00
2009-10-01 12:28:54 +01:00

 Minimal OS
 ----------

This shows some of the stuff that any guest OS will have to set up.

This includes:

 * installing a virtual exception table
 * handling virtual exceptions
 * handling asynchronous events
 * enabling/disabling async events
 * parsing start_info struct at start-of-day
 * registering virtual interrupt handlers (for timer interrupts)
 * a simple page and memory allocator
 * minimal libc support
 * minimal Copy-on-Write support
 * network, block, framebuffer support
 * transparent access to FileSystem exports (see tools/fs-back)

- to build it just type make.

- to build it with TCP/IP support, download LWIP 1.3 source code and type

  make LWIPDIR=/path/to/lwip/source

- to build it with much better libc support, see the stubdom/ directory

- to start it do the following in domain0 (assuming xend is running)
  # xm create domain_config

This starts the kernel and prints out a bunch of stuff and then once every
second the system time.

If you have setup a disk in the config file (e.g.
disk = [ 'file:/tmp/foo,hda,r' ] ), it will loop reading it.  If that disk is
writable (e.g. disk = [ 'file:/tmp/foo,hda,w' ] ), it will write data patterns
and re-read them.

If you have setup a network in the config file (e.g. vif = [''] ), it will
print incoming packets.

If you have setup a VFB in the config file (e.g. vfb = ['type=sdl'] ), it will
show a mouse with which you can draw color squares.

If you have compiled it with TCP/IP support, it will run a daytime server on
TCP port 13.