summaryrefslogtreecommitdiff
path: root/src/arch/i386/lib/cbfs_and_run.c
blob: a6f19e50ee9b026a6e0e1c3884671c8c0fdd70fe (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
/*
 * This file is part of the coreboot project.
 * 
 * Copyright (C) 2008-2009 coresystems GmbH
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <console/console.h>
#include <cbfs.h>
#include <arch/stages.h>

void cbfs_and_run_core(const char *filename, unsigned ebp)
{
	u8 *dst;

	print_debug("Loading stage image.\n");
	dst = cbfs_load_stage(filename);
	if (dst == (void *) -1) {
		/* We should use die() here. */
		print_emerg("Loading stage failed!\n");
		for (;;)
			asm("hlt\n");
	}

	print_debug("Jumping to image.\n");
	__asm__ volatile (
		"movl %%eax, %%ebp\n"
		"jmp  *%%edi\n"
		:: "a"(ebp), "D"(dst)
	);
}

void __attribute__((regparm(0))) copy_and_run(unsigned cpu_reset)
{
	// FIXME fix input parameters instead normalizing them here.
	if (cpu_reset == 1) cpu_reset = -1;
	else cpu_reset = 0;

	cbfs_and_run_core(CONFIG_CBFS_PREFIX "/coreboot_ram", cpu_reset);
}

#if CONFIG_AP_CODE_IN_CAR == 1
void __attribute__((regparm(0))) copy_and_run_ap_code_in_car(unsigned ret_addr)
{
	cbfs_and_run_core(CONFIG_CBFS_PREFIX "/coreboot_ap", ret_addr);
}
#endif