freebsd-dev/sys/boot/efi/loader/main.c

135 lines
4.0 KiB
C

/*-
* Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
* Copyright (c) 1998,2000 Doug Rabson <dfr@freebsd.org>
* 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.
*
* $FreeBSD$
*/
#include <stand.h>
#include <string.h>
#include <setjmp.h>
#include <efi.h>
#include <efilib.h>
#include "bootstrap.h"
#include "efiboot.h"
extern char bootprog_name[];
extern char bootprog_rev[];
extern char bootprog_date[];
extern char bootprog_maker[];
struct efi_devdesc currdev; /* our current device */
struct arch_switch archsw; /* MI/MD interface boundary */
EFI_STATUS
efi_main (EFI_HANDLE image_handle, EFI_SYSTEM_TABLE *system_table)
{
int i;
EFI_PHYSICAL_ADDRESS mem;
efi_init(image_handle, system_table);
/*
* Initialise the heap as early as possible. Once this is done,
* alloc() is usable. The stack is buried inside us, so this is
* safe.
*/
BS->AllocatePages(AllocateAnyPages, EfiLoaderData,
512*1024/4096, &mem);
setheap((void *)mem, (void *)(mem + 512*1024));
/*
* XXX Chicken-and-egg problem; we want to have console output
* early, but some console attributes may depend on reading from
* eg. the boot device, which we can't do yet. We can use
* printf() etc. once this is done.
*/
cons_probe();
/*
* Initialise the block cache
*/
bcache_init(32, 512); /* 16k XXX tune this */
/*
* March through the device switch probing for things.
*/
for (i = 0; devsw[i] != NULL; i++)
if (devsw[i]->dv_init != NULL)
(devsw[i]->dv_init)();
printf("\n");
printf("%s, Revision %s\n", bootprog_name, bootprog_rev);
printf("(%s, %s)\n", bootprog_maker, bootprog_date);
#if 0
printf("Memory: %ld k\n", memsize() / 1024);
#endif
/* We're booting from an SRM disk, try to spiff this */
/* XXX presumes that biosdisk is first in devsw */
currdev.d_dev = devsw[0];
currdev.d_type = currdev.d_dev->dv_type;
currdev.d_kind.efidisk.unit = 0;
/* XXX should be able to detect this, default to autoprobe */
currdev.d_kind.efidisk.slice = -1;
/* default to 'a' */
currdev.d_kind.efidisk.partition = 0;
#if 0
/* Create arc-specific variables */
bootfile = GetEnvironmentVariable(ARCENV_BOOTFILE);
if (bootfile)
setenv("bootfile", bootfile, 1);
env_setenv("currdev", EV_VOLATILE,
arc_fmtdev(&currdev), arc_setcurrdev, env_nounset);
env_setenv("loaddev", EV_VOLATILE,
arc_fmtdev(&currdev), env_noset, env_nounset);
#endif
setenv("LINES", "24", 1); /* optional */
archsw.arch_autoload = efi_autoload;
archsw.arch_getdev = efi_getdev;
archsw.arch_copyin = efi_copyin;
archsw.arch_copyout = efi_copyout;
archsw.arch_readin = efi_readin;
interact(); /* doesn't return */
return EFI_SUCCESS; /* keep compiler happy */
}
COMMAND_SET(quit, "quit", "exit the loader", command_quit);
static int
command_quit(int argc, char *argv[])
{
exit(0);
return(CMD_OK);
}