Commit graph

5 commits

Author SHA1 Message Date
Ben Gras
6f77685609 Split of architecture-dependent and -independent functions for i386,
mainly in the kernel and headers. This split based on work by
Ingmar Alting <iaalting@cs.vu.nl> done for his Minix PowerPC architecture
port.

 . kernel does not program the interrupt controller directly, do any
   other architecture-dependent operations, or contain assembly any more,
   but uses architecture-dependent functions in arch/$(ARCH)/.
 . architecture-dependent constants and types defined in arch/$(ARCH)/include.
 . <ibm/portio.h> moved to <minix/portio.h>, as they have become, for now,
   architecture-independent functions.
 . int86, sdevio, readbios, and iopenable are now i386-specific kernel calls
   and live in arch/i386/do_* now.
 . i386 arch now supports even less 86 code; e.g. mpx86.s and klib86.s have
   gone, and 'machine.protected' is gone (and always taken to be 1 in i386).
   If 86 support is to return, it should be a new architecture.
 . prototypes for the architecture-dependent functions defined in
   kernel/arch/$(ARCH)/*.c but used in kernel/ are in kernel/proto.h
 . /etc/make.conf included in makefiles and shell scripts that need to
   know the building architecture; it defines ARCH=<arch>, currently only
   i386.
 . some basic per-architecture build support outside of the kernel (lib)
 . in clock.c, only dequeue a process if it was ready
 . fixes for new include files

files deleted:
 . mpx/klib.s - only for choosing between mpx/klib86 and -386
 . klib86.s - only for 86

i386-specific files files moved (or arch-dependent stuff moved) to arch/i386/:
 . mpx386.s (entry point)
 . klib386.s
 . sconst.h
 . exception.c
 . protect.c
 . protect.h
 . i8269.c
2006-12-22 15:22:27 +00:00
Ben Gras
607fb6bf7f Add a flag to grants system indicating a slot is VALID; so a slot
can be reserved (USED), while toggling VALID on and off.
2006-06-27 12:19:45 +00:00
Ben Gras
002922fa4c New kernel call, SYS_PARAMCTL, that sets parameters of the caller
and is therefore unprivileged. Used to set grant tables.
2006-06-23 15:07:41 +00:00
Ben Gras
d402047222 Added vectored variant of sys_safecopy*. 2006-06-23 11:54:03 +00:00
Ben Gras
3061d7b17a Changed do_devio not to require DIO_TYPE, but to extract type
from DIO_REQUEST. Also do_vdevio. Also do_sdevio, but this
function also supports grant id's and offsets.

do_segctl: rename protected to prot.

do_umap: support for GRANT_SEG umap.

do_privctl: support SYS_PRIV_SET_GRANTS, which sets location and size
of in-own-address-space grant table.

do_safecopy: functions to verify and perform 'safe' (grant-based) copies.
2006-06-20 10:03:10 +00:00