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-rw-r--r--boot/bootm_os.c591
1 files changed, 591 insertions, 0 deletions
diff --git a/boot/bootm_os.c b/boot/bootm_os.c
new file mode 100644
index 00000000000..6a6621706f7
--- /dev/null
+++ b/boot/bootm_os.c
@@ -0,0 +1,591 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2000-2009
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ */
+
+#include <bootm.h>
+#include <bootstage.h>
+#include <cpu_func.h>
+#include <efi_loader.h>
+#include <elf.h>
+#include <env.h>
+#include <fdt_support.h>
+#include <image.h>
+#include <lmb.h>
+#include <log.h>
+#include <asm/global_data.h>
+#include <linux/libfdt.h>
+#include <malloc.h>
+#include <mapmem.h>
+#include <vxworks.h>
+#include <tee/optee.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static int do_bootm_standalone(int flag, struct bootm_info *bmi)
+{
+ struct bootm_headers *images = bmi->images;
+ int (*appl)(int, char *const[]);
+
+ if (!env_get_autostart()) {
+ env_set_hex("filesize", images->os.image_len);
+ return 0;
+ }
+ appl = (int (*)(int, char * const []))images->ep;
+ appl(bmi->argc, bmi->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
+
+static void __maybe_unused fit_unsupported_reset(const char *msg)
+{
+ if (CONFIG_IS_ENABLED(FIT_VERBOSE)) {
+ printf("! FIT images not supported for '%s' - must reset board to recover!\n",
+ msg);
+ }
+}
+
+#ifdef CONFIG_BOOTM_NETBSD
+static int do_bootm_netbsd(int flag, struct bootm_info *bmi)
+{
+ struct bootm_headers *images = bmi->images;
+ void (*loader)(struct bd_info *bd, struct legacy_img_hdr *hdr,
+ char *console, char *cmdline);
+ struct legacy_img_hdr *os_hdr, *hdr;
+ ulong kernel_data, kernel_len;
+ 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;
+ }
+
+ if (bmi->argc > 0) {
+ ulong len;
+ int i;
+
+ for (i = 0, len = 0; i < bmi->argc; i += 1)
+ len += strlen(bmi->argv[i]) + 1;
+ cmdline = malloc(len);
+ copy_args(cmdline, bmi->argc, bmi->argv, ' ');
+ } else {
+ cmdline = env_get("bootargs");
+ if (cmdline == NULL)
+ cmdline = "";
+ }
+
+ loader = (void (*)(struct bd_info *, struct legacy_img_hdr *, 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, "", cmdline);
+
+ return 1;
+}
+#endif /* CONFIG_BOOTM_NETBSD*/
+
+#ifdef CONFIG_BOOTM_RTEMS
+static int do_bootm_rtems(int flag, struct bootm_info *bmi)
+{
+ struct bootm_headers *images = bmi->images;
+ void (*entry_point)(struct bd_info *);
+
+ 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 (*)(struct bd_info *))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, struct bootm_info *bmi)
+{
+ struct bootm_headers *images = bmi->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, struct bootm_info *bmi)
+{
+ struct bootm_headers *images = bmi->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 = env_get("confaddr");
+ if (s != NULL) {
+ char *confaddr = (char *)hextoul(s, NULL);
+
+ if (bmi->argc) {
+ copy_args(confaddr, bmi->argc, bmi->argv, '\n');
+ } else {
+ s = env_get("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))
+
+static void do_bootvx_fdt(struct bootm_headers *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;
+
+ /* Update ethernet nodes */
+ fdt_fixup_ethernet(*of_flat_tree);
+
+ ret = fdt_add_subnode(*of_flat_tree, 0, "chosen");
+ if ((ret >= 0 || ret == -FDT_ERR_EXISTS)) {
+ bootline = env_get("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
+ flush();
+
+ boot_jump_vxworks(images);
+
+ puts("## vxWorks terminated\n");
+}
+
+static int do_bootm_vxworks_legacy(int flag, struct bootm_info *bmi)
+{
+ struct bootm_headers *images = bmi->images;
+
+ if (flag != BOOTM_STATE_OS_GO)
+ return 0;
+
+ do_bootvx_fdt(images);
+
+ return 1;
+}
+
+int do_bootm_vxworks(int flag, struct bootm_info *bmi)
+{
+ char *bootargs;
+ int pos;
+ unsigned long vxflags;
+ bool std_dtb = false;
+
+ /* get bootargs env */
+ bootargs = env_get("bootargs");
+
+ if (bootargs != NULL) {
+ for (pos = 0; pos < strlen(bootargs); pos++) {
+ /* find f=0xnumber flag */
+ if ((bootargs[pos] == '=') && (pos >= 1) &&
+ (bootargs[pos - 1] == 'f')) {
+ vxflags = hextoul(&bootargs[pos + 1], NULL);
+ if (vxflags & VXWORKS_SYSFLG_STD_DTB)
+ std_dtb = true;
+ }
+ }
+ }
+
+ if (std_dtb) {
+ if (flag & BOOTM_STATE_OS_PREP)
+ printf(" Using standard DTB\n");
+ return do_bootm_linux(flag, bmi);
+ } else {
+ if (flag & BOOTM_STATE_OS_PREP)
+ printf(" !!! WARNING !!! Using legacy DTB\n");
+ return do_bootm_vxworks_legacy(flag, bmi);
+ }
+}
+#endif
+
+#if defined(CONFIG_CMD_ELF)
+static int do_bootm_qnxelf(int flag, struct bootm_info *bmi)
+{
+ struct bootm_headers *images = bmi->images;
+ char *local_args[2];
+ char str[16];
+ int dcache;
+
+ 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] = bmi->argv[0];
+ local_args[1] = str; /* and provide it via the arguments */
+
+ /*
+ * QNX images require the data cache is disabled.
+ */
+ dcache = dcache_status();
+ if (dcache)
+ dcache_disable();
+
+ do_bootelf(NULL, 0, 2, local_args);
+
+ if (dcache)
+ dcache_enable();
+
+ return 1;
+}
+#endif
+
+#if defined(CONFIG_BOOTM_ELF)
+static int do_bootm_elf(int flag, struct bootm_info *bmi)
+{
+ Bootelf_flags flags = { .autostart = 1 };
+
+ if (flag != BOOTM_STATE_OS_GO)
+ return 0;
+
+ bootelf(bmi->images->ep, flags, 0, NULL);
+
+ return 1;
+}
+#endif
+
+#ifdef CONFIG_INTEGRITY
+static int do_bootm_integrity(int flag, struct bootm_info *bmi)
+{
+ struct bootm_headers *images = bmi->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, struct bootm_info *bmi)
+{
+ struct bootm_headers *images = bmi->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
+
+#ifdef CONFIG_BOOTM_OPTEE
+static int do_bootm_tee(int flag, struct bootm_info *bmi)
+{
+ struct bootm_headers *images = bmi->images;
+ int ret;
+
+ /* Validate OPTEE header */
+ ret = optee_verify_bootm_image(images->os.image_start,
+ images->os.load,
+ images->os.image_len);
+ if (ret)
+ return ret;
+
+ /* From here we can run the regular linux boot path */
+ return do_bootm_linux(flag, bmi);
+}
+#endif
+
+#ifdef CONFIG_BOOTM_EFI
+static int do_bootm_efi(int flag, struct bootm_info *bmi)
+{
+ struct bootm_headers *images = bmi->images;
+ int ret;
+ void *image_buf;
+
+ if (flag != BOOTM_STATE_OS_GO)
+ return 0;
+
+ /* We expect to return */
+ images->os.type = IH_TYPE_STANDALONE;
+
+ image_buf = map_sysmem(images->ep, images->os.image_len);
+
+ /* Run EFI image */
+ printf("## Transferring control to EFI (at address %08lx) ...\n",
+ images->ep);
+ bootstage_mark(BOOTSTAGE_ID_RUN_OS);
+
+ ret = efi_binary_run(image_buf, images->os.image_len,
+ images->ft_len
+ ? images->ft_addr : EFI_FDT_USE_INTERNAL);
+
+ return ret;
+}
+#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_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) || defined(CONFIG_RISCV))
+ [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
+#ifdef CONFIG_BOOTM_OPTEE
+ [IH_OS_TEE] = do_bootm_tee,
+#endif
+#ifdef CONFIG_BOOTM_EFI
+ [IH_OS_EFI] = do_bootm_efi,
+#endif
+#if defined(CONFIG_BOOTM_ELF)
+ [IH_OS_ELF] = do_bootm_elf,
+#endif
+};
+
+/* Allow for arch specific config before we boot */
+__weak void arch_preboot_os(void)
+{
+ /* please define platform specific arch_preboot_os() */
+}
+
+/* Allow for board specific config before we boot */
+__weak void board_preboot_os(void)
+{
+ /* please define board specific board_preboot_os() */
+}
+
+int boot_selected_os(int state, struct bootm_info *bmi, boot_os_fn *boot_fn)
+{
+ arch_preboot_os();
+ board_preboot_os();
+
+ boot_fn(state, bmi);
+
+ /* Stand-alone may return when 'autostart' is 'no' */
+ if (bmi->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)
+{
+ return boot_os[os];
+}
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