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u-boot/common/bootm_os.c
Simon Glass b9c771b04c sandbox: Don't exit when bootm completes 
At present sandbox exits when the 'bootm' command completes, since it is not
actually able to run the OS that is loaded. Normally 'bootm' failure is
considered a fatal error in U-Boot.

However this is annoying for tests, which may want to examine the state
after a test is complete. In any case there is a 'reset' command which can
be used to exit, if required.

Change the behaviour to return normally from the 'bootm' command on sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Teddy Reed <teddy.reed@gmail.com>
2016-07-14 18:22:32 -04:00

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/*
* (C) Copyright 2000-2009
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <bootm.h>
#include <fdt_support.h>
#include <libfdt.h>
#include <malloc.h>
#include <vxworks.h>
DECLARE_GLOBAL_DATA_PTR;
static int do_bootm_standalone(int flag, int argc, char * const argv[],
bootm_headers_t *images)
{
char *s;
int (*appl)(int, char *const[]);
/* Don't start if "autostart" is set to "no" */
s = getenv("autostart");
if ((s != NULL) && !strcmp(s, "no")) {
setenv_hex("filesize", images->os.image_len);
return 0;
}
appl = (int (*)(int, char * const []))images->ep;
appl(argc, argv);
return 0;
}
/*******************************************************************/
/* OS booting routines */
/*******************************************************************/
#if defined(CONFIG_BOOTM_NETBSD) || defined(CONFIG_BOOTM_PLAN9)
static void copy_args(char *dest, int argc, char * const argv[], char delim)
{
int i;
for (i = 0; i < argc; i++) {
if (i > 0)
*dest++ = delim;
strcpy(dest, argv[i]);
dest += strlen(argv[i]);
}
}
#endif
#ifdef CONFIG_BOOTM_NETBSD
static int do_bootm_netbsd(int flag, int argc, char * const argv[],
bootm_headers_t *images)
{
void (*loader)(bd_t *, image_header_t *, char *, char *);
image_header_t *os_hdr, *hdr;
ulong kernel_data, kernel_len;
char *consdev;
char *cmdline;
if (flag != BOOTM_STATE_OS_GO)
return 0;
#if defined(CONFIG_FIT)
if (!images->legacy_hdr_valid) {
fit_unsupported_reset("NetBSD");
return 1;
}
#endif
hdr = images->legacy_hdr_os;
/*
* Booting a (NetBSD) kernel image
*
* This process is pretty similar to a standalone application:
* The (first part of an multi-) image must be a stage-2 loader,
* which in turn is responsible for loading & invoking the actual
* kernel. The only differences are the parameters being passed:
* besides the board info strucure, the loader expects a command
* line, the name of the console device, and (optionally) the
* address of the original image header.
*/
os_hdr = NULL;
if (image_check_type(&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
image_multi_getimg(hdr, 1, &kernel_data, &kernel_len);
if (kernel_len)
os_hdr = hdr;
}
consdev = "";
#if defined(CONFIG_8xx_CONS_SMC1)
consdev = "smc1";
#elif defined(CONFIG_8xx_CONS_SMC2)
consdev = "smc2";
#elif defined(CONFIG_8xx_CONS_SCC2)
consdev = "scc2";
#elif defined(CONFIG_8xx_CONS_SCC3)
consdev = "scc3";
#endif
if (argc > 0) {
ulong len;
int i;
for (i = 0, len = 0; i < argc; i += 1)
len += strlen(argv[i]) + 1;
cmdline = malloc(len);
copy_args(cmdline, argc, argv, ' ');
} else {
cmdline = getenv("bootargs");
if (cmdline == NULL)
cmdline = "";
}
loader = (void (*)(bd_t *, image_header_t *, char *, char *))images->ep;
printf("## Transferring control to NetBSD stage-2 loader (at address %08lx) ...\n",
(ulong)loader);
bootstage_mark(BOOTSTAGE_ID_RUN_OS);
/*
* NetBSD Stage-2 Loader Parameters:
* arg[0]: pointer to board info data
* arg[1]: image load address
* arg[2]: char pointer to the console device to use
* arg[3]: char pointer to the boot arguments
*/
(*loader)(gd->bd, os_hdr, consdev, cmdline);
return 1;
}
#endif /* CONFIG_BOOTM_NETBSD*/
#ifdef CONFIG_LYNXKDI
static int do_bootm_lynxkdi(int flag, int argc, char * const argv[],
bootm_headers_t *images)
{
image_header_t *hdr = &images->legacy_hdr_os_copy;
if (flag != BOOTM_STATE_OS_GO)
return 0;
#if defined(CONFIG_FIT)
if (!images->legacy_hdr_valid) {
fit_unsupported_reset("Lynx");
return 1;
}
#endif
lynxkdi_boot((image_header_t *)hdr);
return 1;
}
#endif /* CONFIG_LYNXKDI */
#ifdef CONFIG_BOOTM_RTEMS
static int do_bootm_rtems(int flag, int argc, char * const argv[],
bootm_headers_t *images)
{
void (*entry_point)(bd_t *);
if (flag != BOOTM_STATE_OS_GO)
return 0;
#if defined(CONFIG_FIT)
if (!images->legacy_hdr_valid) {
fit_unsupported_reset("RTEMS");
return 1;
}
#endif
entry_point = (void (*)(bd_t *))images->ep;
printf("## Transferring control to RTEMS (at address %08lx) ...\n",
(ulong)entry_point);
bootstage_mark(BOOTSTAGE_ID_RUN_OS);
/*
* RTEMS Parameters:
* r3: ptr to board info data
*/
(*entry_point)(gd->bd);
return 1;
}
#endif /* CONFIG_BOOTM_RTEMS */
#if defined(CONFIG_BOOTM_OSE)
static int do_bootm_ose(int flag, int argc, char * const argv[],
bootm_headers_t *images)
{
void (*entry_point)(void);
if (flag != BOOTM_STATE_OS_GO)
return 0;
#if defined(CONFIG_FIT)
if (!images->legacy_hdr_valid) {
fit_unsupported_reset("OSE");
return 1;
}
#endif
entry_point = (void (*)(void))images->ep;
printf("## Transferring control to OSE (at address %08lx) ...\n",
(ulong)entry_point);
bootstage_mark(BOOTSTAGE_ID_RUN_OS);
/*
* OSE Parameters:
* None
*/
(*entry_point)();
return 1;
}
#endif /* CONFIG_BOOTM_OSE */
#if defined(CONFIG_BOOTM_PLAN9)
static int do_bootm_plan9(int flag, int argc, char * const argv[],
bootm_headers_t *images)
{
void (*entry_point)(void);
char *s;
if (flag != BOOTM_STATE_OS_GO)
return 0;
#if defined(CONFIG_FIT)
if (!images->legacy_hdr_valid) {
fit_unsupported_reset("Plan 9");
return 1;
}
#endif
/* See README.plan9 */
s = getenv("confaddr");
if (s != NULL) {
char *confaddr = (char *)simple_strtoul(s, NULL, 16);
if (argc > 0) {
copy_args(confaddr, argc, argv, '\n');
} else {
s = getenv("bootargs");
if (s != NULL)
strcpy(confaddr, s);
}
}
entry_point = (void (*)(void))images->ep;
printf("## Transferring control to Plan 9 (at address %08lx) ...\n",
(ulong)entry_point);
bootstage_mark(BOOTSTAGE_ID_RUN_OS);
/*
* Plan 9 Parameters:
* None
*/
(*entry_point)();
return 1;
}
#endif /* CONFIG_BOOTM_PLAN9 */
#if defined(CONFIG_BOOTM_VXWORKS) && \
(defined(CONFIG_PPC) || defined(CONFIG_ARM))
void do_bootvx_fdt(bootm_headers_t *images)
{
#if defined(CONFIG_OF_LIBFDT)
int ret;
char *bootline;
ulong of_size = images->ft_len;
char **of_flat_tree = &images->ft_addr;
struct lmb *lmb = &images->lmb;
if (*of_flat_tree) {
boot_fdt_add_mem_rsv_regions(lmb, *of_flat_tree);
ret = boot_relocate_fdt(lmb, of_flat_tree, &of_size);
if (ret)
return;
fdt_fixup_ethernet(*of_flat_tree);
ret = fdt_add_subnode(*of_flat_tree, 0, "chosen");
if ((ret >= 0 || ret == -FDT_ERR_EXISTS)) {
bootline = getenv("bootargs");
if (bootline) {
ret = fdt_find_and_setprop(*of_flat_tree,
"/chosen", "bootargs",
bootline,
strlen(bootline) + 1, 1);
if (ret < 0) {
printf("## ERROR: %s : %s\n", __func__,
fdt_strerror(ret));
return;
}
}
} else {
printf("## ERROR: %s : %s\n", __func__,
fdt_strerror(ret));
return;
}
}
#endif
boot_prep_vxworks(images);
bootstage_mark(BOOTSTAGE_ID_RUN_OS);
#if defined(CONFIG_OF_LIBFDT)
printf("## Starting vxWorks at 0x%08lx, device tree at 0x%08lx ...\n",
(ulong)images->ep, (ulong)*of_flat_tree);
#else
printf("## Starting vxWorks at 0x%08lx\n", (ulong)images->ep);
#endif
boot_jump_vxworks(images);
puts("## vxWorks terminated\n");
}
static int do_bootm_vxworks(int flag, int argc, char * const argv[],
bootm_headers_t *images)
{
if (flag != BOOTM_STATE_OS_GO)
return 0;
#if defined(CONFIG_FIT)
if (!images->legacy_hdr_valid) {
fit_unsupported_reset("VxWorks");
return 1;
}
#endif
do_bootvx_fdt(images);
return 1;
}
#endif
#if defined(CONFIG_CMD_ELF)
static int do_bootm_qnxelf(int flag, int argc, char * const argv[],
bootm_headers_t *images)
{
char *local_args[2];
char str[16];
if (flag != BOOTM_STATE_OS_GO)
return 0;
#if defined(CONFIG_FIT)
if (!images->legacy_hdr_valid) {
fit_unsupported_reset("QNX");
return 1;
}
#endif
sprintf(str, "%lx", images->ep); /* write entry-point into string */
local_args[0] = argv[0];
local_args[1] = str; /* and provide it via the arguments */
do_bootelf(NULL, 0, 2, local_args);
return 1;
}
#endif
#ifdef CONFIG_INTEGRITY
static int do_bootm_integrity(int flag, int argc, char * const argv[],
bootm_headers_t *images)
{
void (*entry_point)(void);
if (flag != BOOTM_STATE_OS_GO)
return 0;
#if defined(CONFIG_FIT)
if (!images->legacy_hdr_valid) {
fit_unsupported_reset("INTEGRITY");
return 1;
}
#endif
entry_point = (void (*)(void))images->ep;
printf("## Transferring control to INTEGRITY (at address %08lx) ...\n",
(ulong)entry_point);
bootstage_mark(BOOTSTAGE_ID_RUN_OS);
/*
* INTEGRITY Parameters:
* None
*/
(*entry_point)();
return 1;
}
#endif
#ifdef CONFIG_BOOTM_OPENRTOS
static int do_bootm_openrtos(int flag, int argc, char * const argv[],
bootm_headers_t *images)
{
void (*entry_point)(void);
if (flag != BOOTM_STATE_OS_GO)
return 0;
entry_point = (void (*)(void))images->ep;
printf("## Transferring control to OpenRTOS (at address %08lx) ...\n",
(ulong)entry_point);
bootstage_mark(BOOTSTAGE_ID_RUN_OS);
/*
* OpenRTOS Parameters:
* None
*/
(*entry_point)();
return 1;
}
#endif
static boot_os_fn *boot_os[] = {
[IH_OS_U_BOOT] = do_bootm_standalone,
#ifdef CONFIG_BOOTM_LINUX
[IH_OS_LINUX] = do_bootm_linux,
#endif
#ifdef CONFIG_BOOTM_NETBSD
[IH_OS_NETBSD] = do_bootm_netbsd,
#endif
#ifdef CONFIG_LYNXKDI
[IH_OS_LYNXOS] = do_bootm_lynxkdi,
#endif
#ifdef CONFIG_BOOTM_RTEMS
[IH_OS_RTEMS] = do_bootm_rtems,
#endif
#if defined(CONFIG_BOOTM_OSE)
[IH_OS_OSE] = do_bootm_ose,
#endif
#if defined(CONFIG_BOOTM_PLAN9)
[IH_OS_PLAN9] = do_bootm_plan9,
#endif
#if defined(CONFIG_BOOTM_VXWORKS) && \
(defined(CONFIG_PPC) || defined(CONFIG_ARM))
[IH_OS_VXWORKS] = do_bootm_vxworks,
#endif
#if defined(CONFIG_CMD_ELF)
[IH_OS_QNX] = do_bootm_qnxelf,
#endif
#ifdef CONFIG_INTEGRITY
[IH_OS_INTEGRITY] = do_bootm_integrity,
#endif
#ifdef CONFIG_BOOTM_OPENRTOS
[IH_OS_OPENRTOS] = do_bootm_openrtos,
#endif
};
/* Allow for arch specific config before we boot */
__weak void arch_preboot_os(void)
{
/* please define platform specific arch_preboot_os() */
}
int boot_selected_os(int argc, char * const argv[], int state,
bootm_headers_t *images, boot_os_fn *boot_fn)
{
arch_preboot_os();
boot_fn(state, argc, argv, images);
/* Stand-alone may return when 'autostart' is 'no' */
if (images->os.type == IH_TYPE_STANDALONE ||
IS_ENABLED(CONFIG_SANDBOX) ||
state == BOOTM_STATE_OS_FAKE_GO) /* We expect to return */
return 0;
bootstage_error(BOOTSTAGE_ID_BOOT_OS_RETURNED);
debug("\n## Control returned to monitor - resetting...\n");
return BOOTM_ERR_RESET;
}
boot_os_fn *bootm_os_get_boot_func(int os)
{
#ifdef CONFIG_NEEDS_MANUAL_RELOC
static bool relocated;
if (!relocated) {
int i;
/* relocate boot function table */
for (i = 0; i < ARRAY_SIZE(boot_os); i++)
if (boot_os[i] != NULL)
boot_os[i] += gd->reloc_off;
relocated = true;
}
#endif
return boot_os[os];
}
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