blob: f954b91dca5b4762287aad813f36da8e58f2aa7b (
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
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2012 ChromeOS Authors
*
* 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 <stdint.h>
#include <cbmem.h>
#include <console/console.h>
/* Mainboard needs to supply this symbol. */
extern void romstage_main(unsigned long bist);
void main(unsigned long bist)
{
int i;
const int num_guards = 4;
const u32 stack_guard = 0xdeadbeef;
u32 *stack_base = (void *)(CONFIG_DCACHE_RAM_BASE +
CONFIG_DCACHE_RAM_SIZE -
CONFIG_DCACHE_RAM_ROMSTAGE_STACK_SIZE);
printk(BIOS_DEBUG, "Setting up stack guards.\n");
for (i = 0; i < num_guards; i++)
stack_base[i] = stack_guard;
romstage_main(bist);
/* Check the stack. */
for (i = 0; i < num_guards; i++) {
if (stack_base[i] == stack_guard)
continue;
printk(BIOS_DEBUG, "Smashed stack detected in romstage!\n");
}
#if CONFIG_CONSOLE_CBMEM
/* Keep this the last thing this function does. */
cbmemc_reinit();
#endif
}
|
