* Copyright (c) 2016 Alexander Graf
*/
-#include <charset.h>
#include <common.h>
+#include <bootm.h>
+#include <charset.h>
#include <command.h>
#include <dm.h>
#include <efi_loader.h>
#include <asm-generic/unaligned.h>
#include <linux/linkage.h>
-#ifdef CONFIG_ARMV7_NONSEC
-#include <asm/armv7.h>
-#include <asm/secure.h>
-#endif
-
DECLARE_GLOBAL_DATA_PTR;
-#define OBJ_LIST_NOT_INITIALIZED 1
-
-static efi_status_t efi_obj_list_initialized = OBJ_LIST_NOT_INITIALIZED;
-
static struct efi_device_path *bootefi_image_path;
static struct efi_device_path *bootefi_device_path;
-/* Initialize and populate EFI object list */
-efi_status_t efi_init_obj_list(void)
-{
- efi_status_t ret = EFI_SUCCESS;
-
- /*
- * On the ARM architecture gd is mapped to a fixed register (r9 or x18).
- * As this register may be overwritten by an EFI payload we save it here
- * and restore it on every callback entered.
- */
- efi_save_gd();
-
- /* Initialize once only */
- if (efi_obj_list_initialized != OBJ_LIST_NOT_INITIALIZED)
- return efi_obj_list_initialized;
-
- /* Initialize system table */
- ret = efi_initialize_system_table();
- if (ret != EFI_SUCCESS)
- goto out;
-
- /* Initialize root node */
- ret = efi_root_node_register();
- if (ret != EFI_SUCCESS)
- goto out;
-
- /* Initialize EFI driver uclass */
- ret = efi_driver_init();
- if (ret != EFI_SUCCESS)
- goto out;
-
- ret = efi_console_register();
- if (ret != EFI_SUCCESS)
- goto out;
-#ifdef CONFIG_PARTITIONS
- ret = efi_disk_register();
- if (ret != EFI_SUCCESS)
- goto out;
-#endif
-#if defined(CONFIG_LCD) || defined(CONFIG_DM_VIDEO)
- ret = efi_gop_register();
- if (ret != EFI_SUCCESS)
- goto out;
-#endif
-#ifdef CONFIG_NET
- ret = efi_net_register();
- if (ret != EFI_SUCCESS)
- goto out;
-#endif
-#ifdef CONFIG_GENERATE_ACPI_TABLE
- ret = efi_acpi_register();
- if (ret != EFI_SUCCESS)
- goto out;
-#endif
-#ifdef CONFIG_GENERATE_SMBIOS_TABLE
- ret = efi_smbios_register();
- if (ret != EFI_SUCCESS)
- goto out;
-#endif
- ret = efi_watchdog_register();
- if (ret != EFI_SUCCESS)
- goto out;
-
- /* Initialize EFI runtime services */
- ret = efi_reset_system_init();
- if (ret != EFI_SUCCESS)
- goto out;
-
-out:
- efi_obj_list_initialized = ret;
- return ret;
-}
-
/*
* Allow unaligned memory access.
*
/**
* copy_fdt() - Copy the device tree to a new location available to EFI
*
- * The FDT is relocated into a suitable location within the EFI memory map.
- * An additional 12KB is added to the space in case the device tree needs to be
+ * The FDT is copied to a suitable location within the EFI memory map.
+ * Additional 12 KiB are added to the space in case the device tree needs to be
* expanded later with fdt_open_into().
*
- * @fdt_addr: On entry, address of start of FDT. On exit, address of relocated
- * FDT start
- * @fdt_sizep: Returns new size of FDT, including
- * @return new relocated address of FDT
+ * @fdtp: On entry a pointer to the flattened device tree.
+ * On exit a pointer to the copy of the flattened device tree.
+ * FDT start
+ * Return: status code
*/
-static efi_status_t copy_fdt(ulong *fdt_addrp, ulong *fdt_sizep)
+static efi_status_t copy_fdt(void **fdtp)
{
unsigned long fdt_ram_start = -1L, fdt_pages;
efi_status_t ret = 0;
}
/*
- * Give us at least 4KB of breathing room in case the device tree needs
- * to be expanded later. Round up to the nearest EFI page boundary.
+ * Give us at least 12 KiB of breathing room in case the device tree
+ * needs to be expanded later.
*/
- fdt = map_sysmem(*fdt_addrp, 0);
- fdt_size = fdt_totalsize(fdt);
- fdt_size += 4096 * 3;
- fdt_size = ALIGN(fdt_size + EFI_PAGE_SIZE - 1, EFI_PAGE_SIZE);
- fdt_pages = fdt_size >> EFI_PAGE_SHIFT;
-
- /* Safe fdt location is at 127MB */
- new_fdt_addr = fdt_ram_start + (127 * 1024 * 1024) + fdt_size;
+ fdt = *fdtp;
+ fdt_pages = efi_size_in_pages(fdt_totalsize(fdt) + 0x3000);
+ fdt_size = fdt_pages << EFI_PAGE_SHIFT;
+
+ /*
+ * Safe fdt location is at 127 MiB.
+ * On the sandbox convert from the sandbox address space.
+ */
+ new_fdt_addr = (uintptr_t)map_sysmem(fdt_ram_start + 0x7f00000 +
+ fdt_size, 0);
ret = efi_allocate_pages(EFI_ALLOCATE_MAX_ADDRESS,
EFI_RUNTIME_SERVICES_DATA, fdt_pages,
&new_fdt_addr);
goto done;
}
}
-
- new_fdt = map_sysmem(new_fdt_addr, fdt_size);
+ new_fdt = (void *)(uintptr_t)new_fdt_addr;
memcpy(new_fdt, fdt, fdt_totalsize(fdt));
fdt_set_totalsize(new_fdt, fdt_size);
- *fdt_addrp = new_fdt_addr;
- *fdt_sizep = fdt_size;
+ *fdtp = (void *)(uintptr_t)new_fdt_addr;
done:
return ret;
}
-static efi_status_t efi_do_enter(
- efi_handle_t image_handle, struct efi_system_table *st,
- EFIAPI efi_status_t (*entry)(
- efi_handle_t image_handle,
- struct efi_system_table *st))
-{
- efi_status_t ret = EFI_LOAD_ERROR;
-
- if (entry)
- ret = entry(image_handle, st);
- st->boottime->exit(image_handle, ret, 0, NULL);
- return ret;
-}
-
-#ifdef CONFIG_ARM64
-static efi_status_t efi_run_in_el2(EFIAPI efi_status_t (*entry)(
- efi_handle_t image_handle, struct efi_system_table *st),
- efi_handle_t image_handle, struct efi_system_table *st)
-{
- /* Enable caches again */
- dcache_enable();
-
- return efi_do_enter(image_handle, st, entry);
-}
-#endif
-
-#ifdef CONFIG_ARMV7_NONSEC
-static bool is_nonsec;
-
-static efi_status_t efi_run_in_hyp(EFIAPI efi_status_t (*entry)(
- efi_handle_t image_handle, struct efi_system_table *st),
- efi_handle_t image_handle, struct efi_system_table *st)
-{
- /* Enable caches again */
- dcache_enable();
-
- is_nonsec = true;
-
- return efi_do_enter(image_handle, st, entry);
-}
-#endif
-
/*
* efi_carve_out_dt_rsv() - Carve out DT reserved memory ranges
*
if (fdt_get_mem_rsv(fdt, i, &addr, &size) != 0)
continue;
- pages = ALIGN(size, EFI_PAGE_SIZE) >> EFI_PAGE_SHIFT;
+ /* Convert from sandbox address space. */
+ addr = (uintptr_t)map_sysmem(addr, 0);
+
+ pages = efi_size_in_pages(size + (addr & EFI_PAGE_MASK));
+ addr &= ~EFI_PAGE_MASK;
if (!efi_add_memory_map(addr, pages, EFI_RESERVED_MEMORY_TYPE,
false))
printf("FDT memrsv map %d: Failed to add to map\n", i);
static efi_status_t efi_install_fdt(ulong fdt_addr)
{
bootm_headers_t img = { 0 };
- ulong fdt_pages, fdt_size, fdt_start;
efi_status_t ret;
void *fdt;
return EFI_INVALID_PARAMETER;
}
+ /* Create memory reservation as indicated by the device tree */
+ efi_carve_out_dt_rsv(fdt);
+
/* Prepare fdt for payload */
- ret = copy_fdt(&fdt_addr, &fdt_size);
+ ret = copy_fdt(&fdt);
if (ret)
return ret;
- unmap_sysmem(fdt);
- fdt = map_sysmem(fdt_addr, 0);
- fdt_size = fdt_totalsize(fdt);
if (image_setup_libfdt(&img, fdt, 0, NULL)) {
printf("ERROR: failed to process device tree\n");
return EFI_LOAD_ERROR;
}
- efi_carve_out_dt_rsv(fdt);
-
/* Link to it in the efi tables */
ret = efi_install_configuration_table(&efi_guid_fdt, fdt);
if (ret != EFI_SUCCESS)
return EFI_OUT_OF_RESOURCES;
- /* And reserve the space in the memory map */
- fdt_start = fdt_addr;
- fdt_pages = fdt_size >> EFI_PAGE_SHIFT;
+ return ret;
+}
+
+static efi_status_t bootefi_run_prepare(const char *load_options_path,
+ struct efi_device_path *device_path,
+ struct efi_device_path *image_path,
+ struct efi_loaded_image_obj **image_objp,
+ struct efi_loaded_image **loaded_image_infop)
+{
+ efi_status_t ret;
- ret = efi_add_memory_map(fdt_start, fdt_pages,
- EFI_BOOT_SERVICES_DATA, true);
+ ret = efi_setup_loaded_image(device_path, image_path, image_objp,
+ loaded_image_infop);
+ if (ret != EFI_SUCCESS)
+ return ret;
- return ret;
+ /* Transfer environment variable as load options */
+ set_load_options(*loaded_image_infop, load_options_path);
+
+ return 0;
+}
+
+/**
+ * bootefi_run_finish() - finish up after running an EFI test
+ *
+ * @loaded_image_info: Pointer to a struct which holds the loaded image info
+ * @image_objj: Pointer to a struct which holds the loaded image object
+ */
+static void bootefi_run_finish(struct efi_loaded_image_obj *image_obj,
+ struct efi_loaded_image *loaded_image_info)
+{
+ efi_restore_gd();
+ free(loaded_image_info->load_options);
+ efi_delete_handle(&image_obj->header);
}
/**
efi_handle_t mem_handle = NULL;
struct efi_device_path *memdp = NULL;
efi_status_t ret;
- struct efi_loaded_image_obj *image_handle = NULL;
+ struct efi_loaded_image_obj *image_obj = NULL;
struct efi_loaded_image *loaded_image_info = NULL;
- EFIAPI efi_status_t (*entry)(efi_handle_t image_handle,
- struct efi_system_table *st);
-
/*
* Special case for efi payload not loaded from disk, such as
* 'bootefi hello' or for example payload loaded directly into
- * memory via jtag, etc:
+ * 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);
+ memdp = efi_dp_from_mem(EFI_RESERVED_MEMORY_TYPE, 0, 0);
device_path = image_path = memdp;
/*
* Grub expects that the device path of the loaded image is
*/
ret = efi_create_handle(&mem_handle);
if (ret != EFI_SUCCESS)
- goto exit;
+ return ret; /* TODO: leaks device_path */
ret = efi_add_protocol(mem_handle, &efi_guid_device_path,
device_path);
if (ret != EFI_SUCCESS)
- goto exit;
+ goto err_add_protocol;
} else {
assert(device_path && image_path);
}
- ret = efi_setup_loaded_image(device_path, image_path, &image_handle,
- &loaded_image_info);
- if (ret != EFI_SUCCESS)
- goto exit;
+ ret = bootefi_run_prepare("bootargs", device_path, image_path,
+ &image_obj, &loaded_image_info);
+ if (ret)
+ goto err_prepare;
- /* Transfer environment variable bootargs as load options */
- set_load_options(loaded_image_info, "bootargs");
/* Load the EFI payload */
- entry = efi_load_pe(image_handle, efi, loaded_image_info);
- if (!entry) {
- ret = EFI_LOAD_ERROR;
- goto exit;
- }
+ ret = efi_load_pe(image_obj, efi, loaded_image_info);
+ if (ret != EFI_SUCCESS)
+ goto err_prepare;
if (memdp) {
struct efi_device_path_memory *mdp = (void *)memdp;
"{ro,boot}(blob)0000000000000000");
/* Call our payload! */
- debug("%s:%d Jumping to 0x%lx\n", __func__, __LINE__, (long)entry);
-
- if (setjmp(&image_handle->exit_jmp)) {
- ret = image_handle->exit_status;
- goto exit;
- }
+ debug("%s: Jumping to 0x%p\n", __func__, image_obj->entry);
+ ret = EFI_CALL(efi_start_image(&image_obj->header, NULL, NULL));
-#ifdef CONFIG_ARM64
- /* On AArch64 we need to make sure we call our payload in < EL3 */
- if (current_el() == 3) {
- smp_kick_all_cpus();
- dcache_disable(); /* flush cache before switch to EL2 */
+err_prepare:
+ /* image has returned, loaded-image obj goes *poof*: */
+ bootefi_run_finish(image_obj, loaded_image_info);
- /* Move into EL2 and keep running there */
- armv8_switch_to_el2((ulong)entry,
- (ulong)image_handle,
- (ulong)&systab, 0, (ulong)efi_run_in_el2,
- ES_TO_AARCH64);
+err_add_protocol:
+ if (mem_handle)
+ efi_delete_handle(mem_handle);
- /* Should never reach here, efi exits with longjmp */
- while (1) { }
- }
-#endif
+ return ret;
+}
-#ifdef CONFIG_ARMV7_NONSEC
- if (armv7_boot_nonsec() && !is_nonsec) {
- dcache_disable(); /* flush cache before switch to HYP */
+#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
+/**
+ * bootefi_test_prepare() - prepare to run an EFI test
+ *
+ * Prepare to run a test as if it were provided by a loaded image.
+ *
+ * @image_objp: pointer to be set to the loaded image handle
+ * @loaded_image_infop: pointer to be set to the loaded image protocol
+ * @path: dummy file path used to construct the device path
+ * set in the loaded image protocol
+ * @load_options_path: name of a U-Boot environment variable. Its value is
+ * set as load options in the loaded image protocol.
+ * Return: status code
+ */
+static efi_status_t bootefi_test_prepare
+ (struct efi_loaded_image_obj **image_objp,
+ struct efi_loaded_image **loaded_image_infop, const char *path,
+ const char *load_options_path)
+{
+ efi_status_t ret;
- armv7_init_nonsec();
- secure_ram_addr(_do_nonsec_entry)(
- efi_run_in_hyp,
- (uintptr_t)entry,
- (uintptr_t)image_handle,
- (uintptr_t)&systab);
+ /* Construct a dummy device path */
+ bootefi_device_path = efi_dp_from_mem(EFI_RESERVED_MEMORY_TYPE, 0, 0);
+ if (!bootefi_device_path)
+ return EFI_OUT_OF_RESOURCES;
- /* Should never reach here, efi exits with longjmp */
- while (1) { }
+ bootefi_image_path = efi_dp_from_file(NULL, 0, path);
+ if (!bootefi_image_path) {
+ ret = EFI_OUT_OF_RESOURCES;
+ goto failure;
}
-#endif
- ret = efi_do_enter(image_handle, &systab, entry);
-
-exit:
- /* image has returned, loaded-image obj goes *poof*: */
- if (image_handle)
- efi_delete_handle(&image_handle->parent);
- if (mem_handle)
- efi_delete_handle(mem_handle);
+ ret = bootefi_run_prepare(load_options_path, bootefi_device_path,
+ bootefi_image_path, image_objp,
+ loaded_image_infop);
+ if (ret == EFI_SUCCESS)
+ return ret;
+ efi_free_pool(bootefi_image_path);
+ bootefi_image_path = NULL;
+failure:
+ efi_free_pool(bootefi_device_path);
+ bootefi_device_path = NULL;
return ret;
}
+#endif /* CONFIG_CMD_BOOTEFI_SELFTEST */
+
static int do_bootefi_bootmgr_exec(void)
{
struct efi_device_path *device_path, *file_path;
/* Allow unaligned memory access */
allow_unaligned();
+ switch_to_non_secure_mode();
+
/* Initialize EFI drivers */
r = efi_init_obj_list();
if (r != EFI_SUCCESS) {
#endif
#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
if (!strcmp(argv[1], "selftest")) {
- struct efi_loaded_image_obj *image_handle;
+ struct efi_loaded_image_obj *image_obj;
struct efi_loaded_image *loaded_image_info;
- /* 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");
-
- r = efi_setup_loaded_image(bootefi_device_path,
- bootefi_image_path, &image_handle,
- &loaded_image_info);
+ r = bootefi_test_prepare(&image_obj, &loaded_image_info,
+ "\\selftest", "efi_selftest");
if (r != EFI_SUCCESS)
return CMD_RET_FAILURE;
- efi_save_gd();
- /* Transfer environment variable efi_selftest as load options */
- set_load_options(loaded_image_info, "efi_selftest");
/* Execute the test */
- r = efi_selftest(image_handle, &systab);
- efi_restore_gd();
- free(loaded_image_info->load_options);
- efi_delete_handle(&image_handle->parent);
+ r = EFI_CALL(efi_selftest(&image_obj->header, &systab));
+ bootefi_run_finish(image_obj, loaded_image_info);
return r != EFI_SUCCESS;
} else
#endif
void efi_set_bootdev(const char *dev, const char *devnr, const char *path)
{
- char filename[32] = { 0 }; /* dp->str is u16[32] long */
- char *s;
+ struct efi_device_path *device, *image;
+ efi_status_t ret;
/* efi_set_bootdev is typically called repeatedly, recover memory */
efi_free_pool(bootefi_device_path);
efi_free_pool(bootefi_image_path);
- /* If blk_get_device_part_str fails, avoid duplicate free. */
- bootefi_device_path = NULL;
- bootefi_image_path = NULL;
-
- if (strcmp(dev, "Net")) {
- struct blk_desc *desc;
- disk_partition_t fs_partition;
- int part;
-
- part = blk_get_device_part_str(dev, devnr, &desc, &fs_partition,
- 1);
- if (part < 0)
- return;
-
- bootefi_device_path = efi_dp_from_part(desc, part);
- } else {
-#ifdef CONFIG_NET
- bootefi_device_path = efi_dp_from_eth();
-#endif
- }
-
- if (!path)
- return;
- if (strcmp(dev, "Net")) {
- /* Add leading / to fs paths, because they're absolute */
- snprintf(filename, sizeof(filename), "/%s", path);
+ ret = efi_dp_from_name(dev, devnr, path, &device, &image);
+ if (ret == EFI_SUCCESS) {
+ bootefi_device_path = device;
+ bootefi_image_path = image;
} else {
- snprintf(filename, sizeof(filename), "%s", path);
+ bootefi_device_path = NULL;
+ bootefi_image_path = NULL;
}
- /* DOS style file path: */
- s = filename;
- while ((s = strchr(s, '/')))
- *s++ = '\\';
- bootefi_image_path = efi_dp_from_file(NULL, 0, filename);
}
projects / thirdparty / u-boot.git / blobdiff