Commit MD parts of a loosely functional AMD64 port. This is based on

a heavily stripped down FreeBSD/i386 (brutally stripped down actually) to
attempt to get a stable base to start from.  There is a lot missing still.
Worth noting:
- The kernel runs at 1GB in order to cheat with the pmap code.  pmap uses
  a variation of the PAE code in order to avoid having to worry about 4
  levels of page tables yet.
- It boots in 64 bit "long mode" with a tiny trampoline embedded in the
  i386 loader.  This simplifies locore.s greatly.
- There are still quite a few fragments of i386-specific code that have
  not been translated yet, and some that I cheated and wrote dumb C
  versions of (bcopy etc).
- It has both int 0x80 for syscalls (but using registers for argument
  passing, as is native on the amd64 ABI), and the 'syscall' instruction
  for syscalls.  int 0x80 preserves all registers, 'syscall' does not.
- I have tried to minimize looking at the NetBSD code, except in a couple
  of places (eg: to find which register they use to replace the trashed
  %rcx register in the syscall instruction).  As a result, there is not a
  lot of similarity.  I did look at NetBSD a few times while debugging to
  get some ideas about what I might have done wrong in my first attempt.

1 files changed, 0 insertions, 42 deletions

diff --git a/sys/amd64/include/sysarch.h b/sys/amd64/include/sysarch.h
index c5574ff..c33f7b8 100644
--- a/sys/amd64/include/sysarch.h
+++ b/sys/amd64/include/sysarch.h
@@ -39,46 +39,4 @@
 #ifndef _MACHINE_SYSARCH_H_
 #define _MACHINE_SYSARCH_H_
 
-#define I386_GET_LDT	0
-#define I386_SET_LDT	1
-				/* I386_IOPL */
-#define I386_GET_IOPERM	3
-#define I386_SET_IOPERM	4
-				/* xxxxx */
-#define I386_VM86	6
-
-struct i386_ldt_args {
-	unsigned int start;
-	union	descriptor *descs;
-	unsigned int num;
-}; 
-
-struct i386_ioperm_args {
-	unsigned int start;
-	unsigned int length;
-	int	enable;
-};
-
-struct i386_vm86_args {
-	int	sub_op;			/* sub-operation to perform */
-	char	*sub_args;		/* args */
-};
-
-#ifndef _KERNEL
-#include <sys/cdefs.h>
-
-union descriptor;
-struct dbreg;
-
-__BEGIN_DECLS
-int i386_get_ldt(int, union descriptor *, int);
-int i386_set_ldt(int, union descriptor *, int);
-int i386_get_ioperm(unsigned int, unsigned int *, int *);
-int i386_set_ioperm(unsigned int, unsigned int, int);
-int i386_vm86(int, void *);
-int i386_set_watch(int, unsigned int, int, int, struct dbreg *);
-int i386_clr_watch(int, struct dbreg *);
-__END_DECLS
-#endif
-
 #endif /* !_MACHINE_SYSARCH_H_ */