/*-
* Copyright (c) 2001, 2002, 2004 The NetBSD Foundation, Inc.
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*
* kloader_bootfunc_t load new kernel into existing kernel area from
* lined list of new kernel pieces. and then, jump to kernel
* entry. This function must be PIC.
*/
typedef void kloader_bootfunc_t(struct kloader_bootinfo *,
struct kloader_page_tag *);
/*
* koader_jumpfunc_t jump to boot loader described abobe.
*/
typedef void kloader_jumpfunc_t(kloader_bootfunc_t *, vaddr_t,
struct kloader_bootinfo *, struct kloader_page_tag *);
/*
* reset func is optional. may be called when kloader reboot is failed.
*/
struct kloader_ops {
kloader_jumpfunc_t *jump;
kloader_bootfunc_t *boot;
void (*reset)(void);
};
/*
* new kernel is primary loaded into discrete pages.
*/
struct kloader_page_tag {
uint32_t next;
uint32_t src;
uint32_t dst;
uint32_t sz;
} __packed __aligned(4);
#define KLOADER_KERNELARGS_MAX 256
struct kloader_bootinfo {
/* kernel entry point */
vaddr_t entry;
/* argc, argv type boot argument */
int argc;
char **argv;
/* struct type boot argument */
struct bootinfo bootinfo;
/*
* kloader_reboot_setup sets machine dependent kloader_ops to
* kloader. (call __kloader_reboot_setup here.) and load new kernel.
*/
void kloader_reboot_setup(const char *);
void __kloader_reboot_setup(struct kloader_ops *, const char *);
/*
* kloader_reboot jumps to 2nd boot loader.
* call after all shutdown hooks done.
*/
void kloader_reboot(void) __dead;
/*
* kloader_bootinfo_set sets arguments of new kernel to boot. this is optional.
* theses parameter is passed to kloader_bootfunc_t.
*/
void kloader_bootinfo_set(struct kloader_bootinfo *, int, char *[],
struct bootinfo *, int);
