#define LOG_CATEGORY LOGC_EFI
#include <common.h>
+#include <bootm.h>
#include <charset.h>
#include <command.h>
#include <dm.h>
#include <image.h>
#include <log.h>
#include <malloc.h>
+#include <asm/global_data.h>
#include <linux/libfdt.h>
#include <linux/libfdt_env.h>
#include <mapmem.h>
static struct efi_device_path *bootefi_image_path;
static struct efi_device_path *bootefi_device_path;
+static void *image_addr;
+static size_t image_size;
+
+/**
+ * efi_clear_bootdev() - clear boot device
+ */
+static void efi_clear_bootdev(void)
+{
+ efi_free_pool(bootefi_device_path);
+ efi_free_pool(bootefi_image_path);
+ bootefi_device_path = NULL;
+ bootefi_image_path = NULL;
+ image_addr = NULL;
+ image_size = 0;
+}
+
+/**
+ * efi_set_bootdev() - set boot device
+ *
+ * This function is called when a file is loaded, e.g. via the 'load' command.
+ * We use the path to this file to inform the UEFI binary about the boot device.
+ *
+ * @dev: device, e.g. "MMC"
+ * @devnr: number of the device, e.g. "1:2"
+ * @path: path to file loaded
+ * @buffer: buffer with file loaded
+ * @buffer_size: size of file loaded
+ */
+void efi_set_bootdev(const char *dev, const char *devnr, const char *path,
+ void *buffer, size_t buffer_size)
+{
+ struct efi_device_path *device, *image;
+ efi_status_t ret;
+
+ /* Forget overwritten image */
+ if (buffer + buffer_size >= image_addr &&
+ image_addr + image_size >= buffer)
+ efi_clear_bootdev();
+
+ /* Remember only PE-COFF and FIT images */
+ if (efi_check_pe(buffer, buffer_size, NULL) != EFI_SUCCESS) {
+#ifdef CONFIG_FIT
+ if (fit_check_format(buffer, IMAGE_SIZE_INVAL))
+ return;
+ /*
+ * FIT images of type EFI_OS are started via command bootm.
+ * We should not use their boot device with the bootefi command.
+ */
+ buffer = 0;
+ buffer_size = 0;
+#else
+ return;
+#endif
+ }
+
+ /* efi_set_bootdev() is typically called repeatedly, recover memory */
+ efi_clear_bootdev();
+
+ image_addr = buffer;
+ image_size = buffer_size;
+
+ ret = efi_dp_from_name(dev, devnr, path, &device, &image);
+ if (ret == EFI_SUCCESS) {
+ bootefi_device_path = device;
+ if (image) {
+ /* FIXME: image should not contain device */
+ struct efi_device_path *image_tmp = image;
+
+ efi_dp_split_file_path(image, &device, &image);
+ efi_free_pool(image_tmp);
+ }
+ bootefi_image_path = image;
+ } else {
+ efi_clear_bootdev();
+ }
+}
/**
* efi_env_set_load_options() - set load options from environment variable
}
/**
- * efi_reserve_memory() - add reserved memory to memory map
- *
- * @addr: start address of the reserved memory range
- * @size: size of the reserved memory range
- * @nomap: indicates that the memory range shall not be accessed by the
- * UEFI payload
- */
-static void efi_reserve_memory(u64 addr, u64 size, bool nomap)
-{
- int type;
- efi_uintn_t ret;
-
- /* Convert from sandbox address space. */
- addr = (uintptr_t)map_sysmem(addr, 0);
-
- if (nomap)
- type = EFI_RESERVED_MEMORY_TYPE;
- else
- type = EFI_BOOT_SERVICES_DATA;
-
- ret = efi_add_memory_map(addr, size, type);
- if (ret != EFI_SUCCESS)
- log_err("Reserved memory mapping failed addr %llx size %llx\n",
- addr, size);
-}
-
-/**
- * efi_carve_out_dt_rsv() - Carve out DT reserved memory ranges
- *
- * The mem_rsv entries of the FDT are added to the memory map. Any failures are
- * ignored because this is not critical and we would rather continue to try to
- * boot.
- *
- * @fdt: Pointer to device tree
- */
-static void efi_carve_out_dt_rsv(void *fdt)
-{
- int nr_rsv, i;
- u64 addr, size;
- int nodeoffset, subnode;
-
- nr_rsv = fdt_num_mem_rsv(fdt);
-
- /* Look for an existing entry and add it to the efi mem map. */
- for (i = 0; i < nr_rsv; i++) {
- if (fdt_get_mem_rsv(fdt, i, &addr, &size) != 0)
- continue;
- efi_reserve_memory(addr, size, false);
- }
-
- /* process reserved-memory */
- nodeoffset = fdt_subnode_offset(fdt, 0, "reserved-memory");
- if (nodeoffset >= 0) {
- subnode = fdt_first_subnode(fdt, nodeoffset);
- while (subnode >= 0) {
- fdt_addr_t fdt_addr;
- fdt_size_t fdt_size;
-
- /* check if this subnode has a reg property */
- fdt_addr = fdtdec_get_addr_size_auto_parent(
- fdt, nodeoffset, subnode,
- "reg", 0, &fdt_size, false);
- /*
- * The /reserved-memory node may have children with
- * a size instead of a reg property.
- */
- if (fdt_addr != FDT_ADDR_T_NONE &&
- fdtdec_get_is_enabled(fdt, subnode)) {
- bool nomap;
-
- nomap = !!fdt_getprop(fdt, subnode, "no-map",
- NULL);
- efi_reserve_memory(fdt_addr, fdt_size, nomap);
- }
- subnode = fdt_next_subnode(fdt, subnode);
- }
- }
-}
-
-/**
* get_config_table() - get configuration table
*
* @guid: GUID of the configuration table
efi_uintn_t exit_data_size = 0;
u16 *exit_data = NULL;
+ /* On ARM switch from EL3 or secure mode to EL2 or non-secure mode */
+ switch_to_non_secure_mode();
+
/* Call our payload! */
ret = EFI_CALL(efi_start_image(handle, &exit_data_size, &exit_data));
if (ret != EFI_SUCCESS) {
free(load_options);
+ if (IS_ENABLED(CONFIG_EFI_LOAD_FILE2_INITRD))
+ efi_initrd_deregister();
+
return ret;
}
{
void *image_buf;
unsigned long addr, size;
- const char *size_str;
efi_status_t ret;
#ifdef CONFIG_CMD_BOOTEFI_HELLO
if (!strcmp(image_opt, "hello")) {
- char *saddr;
-
- saddr = env_get("loadaddr");
+ image_buf = __efi_helloworld_begin;
size = __efi_helloworld_end - __efi_helloworld_begin;
-
- if (saddr)
- addr = simple_strtoul(saddr, NULL, 16);
- else
- addr = CONFIG_SYS_LOAD_ADDR;
-
- image_buf = map_sysmem(addr, size);
- memcpy(image_buf, __efi_helloworld_begin, size);
-
- efi_free_pool(bootefi_device_path);
- efi_free_pool(bootefi_image_path);
- bootefi_device_path = NULL;
- bootefi_image_path = NULL;
+ efi_clear_bootdev();
} else
#endif
{
- size_str = env_get("filesize");
- if (size_str)
- size = simple_strtoul(size_str, NULL, 16);
- else
- size = 0;
-
- addr = simple_strtoul(image_opt, NULL, 16);
+ addr = strtoul(image_opt, NULL, 16);
/* Check that a numeric value was passed */
- if (!addr && *image_opt != '0')
+ if (!addr)
return CMD_RET_USAGE;
- image_buf = map_sysmem(addr, size);
+ image_buf = map_sysmem(addr, 0);
+
+ if (image_buf != image_addr) {
+ log_err("No UEFI binary known at %s\n", image_opt);
+ return CMD_RET_FAILURE;
+ }
+ size = image_size;
}
ret = efi_run_image(image_buf, size);
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;
+ efi_clear_bootdev();
return ret;
}
else if (ret != EFI_SUCCESS)
return CMD_RET_FAILURE;
- if (!strcmp(argv[1], "bootmgr"))
- return do_efibootmgr();
+ if (IS_ENABLED(CONFIG_CMD_BOOTEFI_BOOTMGR)) {
+ if (!strcmp(argv[1], "bootmgr"))
+ return do_efibootmgr();
+ }
#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
- else if (!strcmp(argv[1], "selftest"))
+ if (!strcmp(argv[1], "selftest"))
return do_efi_selftest();
#endif
" Use environment variable efi_selftest to select a single test.\n"
" Use 'setenv efi_selftest list' to enumerate all tests.\n"
#endif
+#ifdef CONFIG_CMD_BOOTEFI_BOOTMGR
"bootefi bootmgr [fdt address]\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";
+ " exposed as EFI configuration table.\n"
+#endif
+ ;
#endif
U_BOOT_CMD(
"Boots an EFI payload from memory",
bootefi_help_text
);
-
-/**
- * efi_set_bootdev() - set boot device
- *
- * This function is called when a file is loaded, e.g. via the 'load' command.
- * We use the path to this file to inform the UEFI binary about the boot device.
- *
- * @dev: device, e.g. "MMC"
- * @devnr: number of the device, e.g. "1:2"
- * @path: path to file loaded
- */
-void efi_set_bootdev(const char *dev, const char *devnr, const char *path)
-{
- 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);
-
- ret = efi_dp_from_name(dev, devnr, path, &device, &image);
- if (ret == EFI_SUCCESS) {
- bootefi_device_path = device;
- if (image) {
- /* FIXME: image should not contain device */
- struct efi_device_path *image_tmp = image;
-
- efi_dp_split_file_path(image, &device, &image);
- efi_free_pool(image_tmp);
- }
- bootefi_image_path = image;
- } else {
- bootefi_device_path = NULL;
- bootefi_image_path = NULL;
- }
-}
projects / platform / kernel / u-boot.git / blobdiff