* SPDX-License-Identifier: GPL-2.0+
*/
+#include <charset.h>
#include <common.h>
#include <command.h>
#include <dm.h>
#include <efi_loader.h>
+#include <efi_selftest.h>
#include <errno.h>
#include <libfdt.h>
#include <libfdt_env.h>
#ifdef CONFIG_GENERATE_SMBIOS_TABLE
efi_smbios_register();
#endif
+ efi_watchdog_register();
/* Initialize EFI runtime services */
efi_reset_system_init();
efi_get_time_init();
}
+/*
+ * Set the load options of an image from an environment variable.
+ *
+ * @loaded_image_info: the image
+ * @env_var: name of the environment variable
+ */
+static void set_load_options(struct efi_loaded_image *loaded_image_info,
+ const char *env_var)
+{
+ size_t size;
+ const char *env = env_get(env_var);
+
+ loaded_image_info->load_options = NULL;
+ loaded_image_info->load_options_size = 0;
+ if (!env)
+ return;
+ size = strlen(env) + 1;
+ loaded_image_info->load_options = calloc(size, sizeof(u16));
+ if (!loaded_image_info->load_options) {
+ printf("ERROR: Out of memory\n");
+ return;
+ }
+ utf8_to_utf16(loaded_image_info->load_options, (u8 *)env, size);
+ loaded_image_info->load_options_size = size * 2;
+}
+
static void *copy_fdt(void *fdt)
{
u64 fdt_size = fdt_totalsize(fdt);
return new_fdt;
}
-static ulong efi_do_enter(void *image_handle,
- struct efi_system_table *st,
- asmlinkage ulong (*entry)(void *image_handle,
- struct efi_system_table *st))
+static efi_status_t efi_do_enter(
+ void *image_handle, struct efi_system_table *st,
+ asmlinkage ulong (*entry)(void *image_handle,
+ struct efi_system_table *st))
{
efi_status_t ret = EFI_LOAD_ERROR;
}
#ifdef CONFIG_ARM64
-static unsigned long efi_run_in_el2(asmlinkage ulong (*entry)(
+static efi_status_t efi_run_in_el2(asmlinkage ulong (*entry)(
void *image_handle, struct efi_system_table *st),
void *image_handle, struct efi_system_table *st)
{
* Load an EFI payload into a newly allocated piece of memory, register all
* EFI objects it would want to access and jump to it.
*/
-static unsigned long do_bootefi_exec(void *efi, void *fdt,
- struct efi_device_path *device_path,
- struct efi_device_path *image_path)
+static efi_status_t do_bootefi_exec(void *efi, void *fdt,
+ struct efi_device_path *device_path,
+ struct efi_device_path *image_path)
{
struct efi_loaded_image loaded_image_info = {};
struct efi_object loaded_image_info_obj = {};
+ struct efi_device_path *memdp = NULL;
ulong ret;
ulong (*entry)(void *image_handle, struct efi_system_table *st)
const efi_guid_t fdt_guid = EFI_FDT_GUID;
bootm_headers_t img = { 0 };
+ /*
+ * Special case for efi payload not loaded from disk, such as
+ * 'bootefi hello' or for example payload loaded directly into
+ * memory via jtag/etc:
+ */
+ if (!device_path && !image_path) {
+ printf("WARNING: using memory device/image path, this may confuse some payloads!\n");
+ /* actual addresses filled in after efi_load_pe() */
+ memdp = efi_dp_from_mem(0, 0, 0);
+ device_path = image_path = memdp;
+ } else {
+ assert(device_path && image_path);
+ }
+
/* Initialize and populate EFI object list */
if (!efi_obj_list_initalized)
efi_init_obj_list();
efi_install_configuration_table(&fdt_guid, NULL);
}
+ /* Transfer environment variable bootargs as load options */
+ set_load_options(&loaded_image_info, "bootargs");
/* Load the EFI payload */
entry = efi_load_pe(efi, &loaded_image_info);
if (!entry) {
goto exit;
}
+ if (memdp) {
+ struct efi_device_path_memory *mdp = (void *)memdp;
+ mdp->memory_type = loaded_image_info.image_code_type;
+ mdp->start_address = (uintptr_t)loaded_image_info.image_base;
+ mdp->end_address = mdp->start_address +
+ loaded_image_info.image_size;
+ }
+
/* we don't support much: */
env_set("efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_OsIndicationsSupported",
"{ro,boot}(blob)0000000000000000");
if (setjmp(&loaded_image_info.exit_jmp)) {
ret = loaded_image_info.exit_status;
- EFI_EXIT(ret);
goto exit;
}
dcache_disable(); /* flush cache before switch to EL2 */
/* Move into EL2 and keep running there */
- armv8_switch_to_el2((ulong)entry, (ulong)&loaded_image_info,
+ armv8_switch_to_el2((ulong)entry,
+ (ulong)&loaded_image_info_obj.handle,
(ulong)&systab, 0, (ulong)efi_run_in_el2,
ES_TO_AARCH64);
}
#endif
- ret = efi_do_enter(&loaded_image_info, &systab, entry);
+ ret = efi_do_enter(loaded_image_info_obj.handle, &systab, entry);
exit:
/* image has returned, loaded-image obj goes *poof*: */
return ret;
}
+static int do_bootefi_bootmgr_exec(unsigned long fdt_addr)
+{
+ struct efi_device_path *device_path, *file_path;
+ void *addr;
+ efi_status_t r;
+
+ /* Initialize and populate EFI object list */
+ if (!efi_obj_list_initalized)
+ efi_init_obj_list();
+
+ /*
+ * gd lives in a fixed register which may get clobbered while we execute
+ * the payload. So save it here and restore it on every callback entry
+ */
+ efi_save_gd();
+
+ addr = efi_bootmgr_load(&device_path, &file_path);
+ if (!addr)
+ return 1;
+
+ printf("## Starting EFI application at %p ...\n", addr);
+ r = do_bootefi_exec(addr, (void *)fdt_addr, device_path, file_path);
+ printf("## Application terminated, r = %lu\n",
+ r & ~EFI_ERROR_MASK);
+
+ if (r != EFI_SUCCESS)
+ return 1;
+
+ return 0;
+}
+
/* Interpreter command to boot an arbitrary EFI image from memory */
static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
char *saddr, *sfdt;
unsigned long addr, fdt_addr = 0;
- unsigned long r;
+ efi_status_t r;
if (argc < 2)
return CMD_RET_USAGE;
#endif
#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
if (!strcmp(argv[1], "selftest")) {
+ struct efi_loaded_image loaded_image_info = {};
+ struct efi_object loaded_image_info_obj = {};
+
+ /* Construct a dummy device path. */
+ bootefi_device_path = efi_dp_from_mem(EFI_RESERVED_MEMORY_TYPE,
+ (uintptr_t)&efi_selftest,
+ (uintptr_t)&efi_selftest);
+ bootefi_image_path = efi_dp_from_file(NULL, 0, "\\selftest");
+
+ efi_setup_loaded_image(&loaded_image_info,
+ &loaded_image_info_obj,
+ bootefi_device_path, bootefi_image_path);
/*
* gd lives in a fixed register which may get clobbered while we
* execute the payload. So save it here and restore it on every
/* Initialize and populate EFI object list */
if (!efi_obj_list_initalized)
efi_init_obj_list();
- loaded_image_info.device_handle = bootefi_device_path;
- loaded_image_info.file_path = bootefi_image_path;
- return efi_selftest(&loaded_image_info, &systab);
+ /* Transfer environment variable efi_selftest as load options */
+ set_load_options(&loaded_image_info, "efi_selftest");
+ /* Execute the test */
+ r = efi_selftest(loaded_image_info_obj.handle, &systab);
+ efi_restore_gd();
+ free(loaded_image_info.load_options);
+ list_del(&loaded_image_info_obj.link);
+ return r != EFI_SUCCESS;
} else
#endif
- {
+ if (!strcmp(argv[1], "bootmgr")) {
+ unsigned long fdt_addr = 0;
+
+ if (argc > 2)
+ fdt_addr = simple_strtoul(argv[2], NULL, 16);
+
+ return do_bootefi_bootmgr_exec(fdt_addr);
+ } else {
saddr = argv[1];
addr = simple_strtoul(saddr, NULL, 16);
#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
"bootefi selftest\n"
" - boot an EFI selftest application stored within U-Boot\n"
+ " Use environment variable efi_selftest to select a single test.\n"
+ " Use 'setenv efi_selftest list' to enumerate all tests.\n"
#endif
- ;
+ "bootmgr [fdt addr]\n"
+ " - load and boot EFI payload based on BootOrder/BootXXXX variables.\n"
+ "\n"
+ " If specified, the device tree located at <fdt address> gets\n"
+ " exposed as EFI configuration table.\n";
#endif
U_BOOT_CMD(
int part;
desc = blk_get_dev(dev, simple_strtol(devnr, NULL, 10));
+ if (!desc)
+ return;
part = parse_partnum(devnr);
bootefi_device_path = efi_dp_from_part(desc, part);
#endif
}
+ if (!path)
+ return;
+
if (strcmp(dev, "Net")) {
/* Add leading / to fs paths, because they're absolute */
snprintf(filename, sizeof(filename), "/%s", path);