freebsd-dev/sys/boot/ia64/ski/libski.h
Marcel Moolenaar dc00c828e3 Remove special casing for running in the simulator from the kernel
and instead add platform, firmware and EFI stubs to the loader.
The net effect of this change is that besides a special console and
disk driver, the kernel has no knowledge of the simulator. This has
the following advantages:
o  Simulator support is much harder to break,
o  It's easier to make use of more feature complete simulators.
   This would only need a change in the simulator specific loader,
o  Running SMP kernels within the simulator. Note that ski at this
   time does not simulate IPIs, so there's no way to start APs.

The platform, firmware and EFI stubs describe the following hardware:
o  4 CPU Itanium,
o  128 MB RAM within the 4GB address space,
o  64 MB RAM above the 4GB address space.

NOTE: The stubs in the skiloader describe a machine that should in
parts be defined by the simulator. Things like processor interrupt
block and AP wakeup vector cannot be choosen at random because they
require interpretation by the simulator. Currently the simulator is
ignorant of this.

This change introduces an unofficial SSC call SSC_SAL_SET_VECTORS
which is ignored by the simulator.

Tested with: ski (version 0.943 for linux)
2003-02-01 22:50:09 +00:00

97 lines
3.0 KiB
C

/*-
* Copyright (c) 2001 Doug Rabson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* SKI fully-qualified device descriptor
*/
struct ski_devdesc {
struct devsw *d_dev;
int d_type;
#define DEVT_NONE 0
#define DEVT_DISK 1
#define DEVT_NET 2
union {
struct {
int unit;
int slice;
int partition;
} skidisk;
struct {
int unit; /* XXX net layer lives over these? */
} netif;
} d_kind;
};
extern int ski_getdev(void **vdev, const char *devspec, const char **path);
extern char *ski_fmtdev(void *vdev);
extern int ski_setcurrdev(struct env_var *ev, int flags, void *value);
#define MAXDEV 31 /* maximum number of distinct devices */
typedef unsigned long physaddr_t;
/* exported devices XXX rename? */
extern struct devsw skifs_dev;
extern struct devsw ski_disk;
extern struct netif_driver ski_net;
/* Wrapper over SKI filesystems. */
extern struct fs_ops ski_fsops;
/* this is in startup code */
extern void delay(int);
extern void reboot(void);
extern ssize_t ski_copyin(const void *src, vm_offset_t dest, size_t len);
extern ssize_t ski_copyout(const vm_offset_t src, void *dest, size_t len);
extern ssize_t ski_readin(int fd, vm_offset_t dest, size_t len);
extern int ski_boot(void);
extern int ski_autoload(void);
struct bootinfo;
struct preloaded_file;
extern int bi_load(struct bootinfo *, struct preloaded_file *);
#define SSC_CONSOLE_INIT 20
#define SSC_GETCHAR 21
#define SSC_PUTCHAR 31
#define SSC_OPEN 50
#define SSC_CLOSE 51
#define SSC_READ 52
#define SSC_WRITE 53
#define SSC_GET_COMPLETION 54
#define SSC_WAIT_COMPLETION 55
#define SSC_GET_RTC 65
#define SSC_EXIT 66
#define SSC_LOAD_SYMBOLS 69
#define SSC_SAL_SET_VECTORS 120
u_int64_t ssc(u_int64_t in0, u_int64_t in1, u_int64_t in2, u_int64_t in3,
int which);