*/
#include <common.h>
-#include <bootm.h>
#include <charset.h>
#include <command.h>
#include <dm.h>
#include <efi_loader.h>
#include <efi_selftest.h>
+#include <env.h>
#include <errno.h>
+#include <malloc.h>
#include <linux/libfdt.h>
#include <linux/libfdt_env.h>
#include <mapmem.h>
#include <memalign.h>
-#include <asm/global_data.h>
#include <asm-generic/sections.h>
-#include <asm-generic/unaligned.h>
#include <linux/linkage.h>
DECLARE_GLOBAL_DATA_PTR;
static struct efi_device_path *bootefi_image_path;
static struct efi_device_path *bootefi_device_path;
-/*
- * Allow unaligned memory access.
- *
- * This routine is overridden by architectures providing this feature.
- */
-void __weak allow_unaligned(void)
-{
-}
-
-/*
+/**
* Set the load options of an image from an environment variable.
*
- * @handle: the image handle
- * @env_var: name of the environment variable
- * Return: status code
+ * @handle: the image handle
+ * @env_var: name of the environment variable
+ * @load_options: pointer to load options (output)
+ * Return: status code
*/
-static efi_status_t set_load_options(efi_handle_t handle, const char *env_var)
+static efi_status_t set_load_options(efi_handle_t handle, const char *env_var,
+ u16 **load_options)
{
struct efi_loaded_image *loaded_image_info;
size_t size;
u16 *pos;
efi_status_t ret;
+ *load_options = NULL;
ret = EFI_CALL(systab.boottime->open_protocol(
handle,
&efi_guid_loaded_image,
return EFI_OUT_OF_RESOURCES;
}
pos = loaded_image_info->load_options;
+ *load_options = pos;
utf8_utf16_strcpy(&pos, env);
loaded_image_info->load_options_size = size * 2;
new_fdt_addr = (uintptr_t)map_sysmem(fdt_ram_start + 0x7f00000 +
fdt_size, 0);
ret = efi_allocate_pages(EFI_ALLOCATE_MAX_ADDRESS,
- EFI_BOOT_SERVICES_DATA, fdt_pages,
+ EFI_ACPI_RECLAIM_MEMORY, fdt_pages,
&new_fdt_addr);
if (ret != EFI_SUCCESS) {
/* If we can't put it there, put it somewhere */
new_fdt_addr = (ulong)memalign(EFI_PAGE_SIZE, fdt_size);
ret = efi_allocate_pages(EFI_ALLOCATE_MAX_ADDRESS,
- EFI_BOOT_SERVICES_DATA, fdt_pages,
+ EFI_ACPI_RECLAIM_MEMORY, fdt_pages,
&new_fdt_addr);
if (ret != EFI_SUCCESS) {
printf("ERROR: Failed to reserve space for FDT\n");
return ret;
}
-/*
+static void efi_reserve_memory(u64 addr, u64 size)
+{
+ /* Convert from sandbox address space. */
+ addr = (uintptr_t)map_sysmem(addr, 0);
+ if (efi_add_memory_map(addr, size,
+ EFI_RESERVED_MEMORY_TYPE) != EFI_SUCCESS)
+ printf("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
static void efi_carve_out_dt_rsv(void *fdt)
{
int nr_rsv, i;
- uint64_t addr, size, pages;
+ u64 addr, size;
+ int nodeoffset, subnode;
nr_rsv = fdt_num_mem_rsv(fdt);
for (i = 0; i < nr_rsv; i++) {
if (fdt_get_mem_rsv(fdt, i, &addr, &size) != 0)
continue;
+ efi_reserve_memory(addr, size);
+ }
- /* 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);
+ /* process reserved-memory */
+ nodeoffset = fdt_subnode_offset(fdt, 0, "reserved-memory");
+ if (nodeoffset >= 0) {
+ subnode = fdt_first_subnode(fdt, nodeoffset);
+ while (subnode >= 0) {
+ /* check if this subnode has a reg property */
+ addr = fdtdec_get_addr_size(fdt, subnode, "reg",
+ (fdt_size_t *)&size);
+ /*
+ * The /reserved-memory node may have children with
+ * a size instead of a reg property.
+ */
+ if (addr != FDT_ADDR_T_NONE &&
+ fdtdec_get_is_enabled(fdt, subnode))
+ efi_reserve_memory(addr, size);
+ subnode = fdt_next_subnode(fdt, subnode);
+ }
}
}
#endif /* !CONFIG_IS_ENABLED(GENERATE_ACPI_TABLE) */
/**
- * efi_install_fdt() - install fdt passed by a command argument
- * @fdt_opt: pointer to argument
- * Return: status code
+ * efi_install_fdt() - install device tree
+ *
+ * If fdt is not EFI_FDT_USE_INTERNAL, the device tree located at that memory
+ * address will will be installed as configuration table, otherwise the device
+ * tree located at the address indicated by environment variable fdt_addr or as
+ * fallback fdtcontroladdr will be used.
+ *
+ * On architectures using ACPI tables device trees shall not be installed as
+ * configuration table.
*
- * If specified, fdt will be installed as configuration table,
- * otherwise no fdt will be passed.
+ * @fdt: address of device tree or EFI_FDT_USE_INTERNAL to use the
+ * the hardware device tree as indicated by environment variable
+ * fdt_addr or as fallback the internal device tree as indicated by
+ * the environment variable fdtcontroladdr
+ * Return: status code
*/
-static efi_status_t efi_install_fdt(const char *fdt_opt)
+efi_status_t efi_install_fdt(void *fdt)
{
/*
* The EBBR spec requires that we have either an FDT or an ACPI table
* but not both.
*/
#if CONFIG_IS_ENABLED(GENERATE_ACPI_TABLE)
- if (fdt_opt) {
+ if (fdt) {
printf("ERROR: can't have ACPI table and device tree.\n");
return EFI_LOAD_ERROR;
}
#else
- unsigned long fdt_addr;
- void *fdt;
bootm_headers_t img = { 0 };
efi_status_t ret;
- if (fdt_opt) {
- fdt_addr = simple_strtoul(fdt_opt, NULL, 16);
- if (!fdt_addr)
- return EFI_INVALID_PARAMETER;
- } else {
+ if (fdt == EFI_FDT_USE_INTERNAL) {
+ const char *fdt_opt;
+ uintptr_t fdt_addr;
+
/* Look for device tree that is already installed */
if (get_config_table(&efi_guid_fdt))
return EFI_SUCCESS;
- /* Use our own device tree as default */
- fdt_opt = env_get("fdtcontroladdr");
+ /* Check if there is a hardware device tree */
+ fdt_opt = env_get("fdt_addr");
+ /* Use our own device tree as fallback */
if (!fdt_opt) {
- printf("ERROR: need device tree\n");
- return EFI_NOT_FOUND;
+ fdt_opt = env_get("fdtcontroladdr");
+ if (!fdt_opt) {
+ printf("ERROR: need device tree\n");
+ return EFI_NOT_FOUND;
+ }
}
fdt_addr = simple_strtoul(fdt_opt, NULL, 16);
if (!fdt_addr) {
- printf("ERROR: invalid $fdtcontroladdr\n");
+ printf("ERROR: invalid $fdt_addr or $fdtcontroladdr\n");
return EFI_LOAD_ERROR;
}
+ fdt = map_sysmem(fdt_addr, 0);
}
/* Install device tree */
- fdt = map_sysmem(fdt_addr, 0);
if (fdt_check_header(fdt)) {
printf("ERROR: invalid device tree\n");
return EFI_LOAD_ERROR;
}
- /* Create memory reservations as indicated by the device tree */
- efi_carve_out_dt_rsv(fdt);
-
/* Prepare device tree for payload */
ret = copy_fdt(&fdt);
if (ret) {
return EFI_LOAD_ERROR;
}
+ /* Create memory reservations as indicated by the device tree */
+ efi_carve_out_dt_rsv(fdt);
+
/* Install device tree as UEFI table */
ret = efi_install_configuration_table(&efi_guid_fdt, fdt);
if (ret != EFI_SUCCESS) {
efi_status_t ret;
efi_uintn_t exit_data_size = 0;
u16 *exit_data = NULL;
+ u16 *load_options;
/* Transfer environment variable as load options */
- ret = set_load_options(handle, "bootargs");
+ ret = set_load_options(handle, "bootargs", &load_options);
if (ret != EFI_SUCCESS)
return ret;
efi_restore_gd();
- /*
- * FIXME: Who is responsible for
- * free(loaded_image_info->load_options);
- * Once efi_exit() is implemented correctly,
- * handle itself doesn't exist here.
- */
+ free(load_options);
return ret;
}
/**
- * do_efibootmgr() - execute EFI Boot Manager
+ * do_efibootmgr() - execute EFI boot manager
*
- * @fdt_opt: string of fdt start address
* Return: status code
- *
- * Execute EFI Boot Manager
*/
-static int do_efibootmgr(const char *fdt_opt)
+static int do_efibootmgr(void)
{
efi_handle_t handle;
efi_status_t ret;
- /* Allow unaligned memory access */
- allow_unaligned();
-
- switch_to_non_secure_mode();
-
- /* Initialize EFI drivers */
- ret = efi_init_obj_list();
- if (ret != EFI_SUCCESS) {
- printf("Error: Cannot initialize UEFI sub-system, r = %lu\n",
- ret & ~EFI_ERROR_MASK);
- return CMD_RET_FAILURE;
- }
-
- ret = efi_install_fdt(fdt_opt);
- if (ret == EFI_INVALID_PARAMETER)
- return CMD_RET_USAGE;
- else if (ret != EFI_SUCCESS)
- return CMD_RET_FAILURE;
-
ret = efi_bootmgr_load(&handle);
if (ret != EFI_SUCCESS) {
printf("EFI boot manager: Cannot load any image\n");
return CMD_RET_SUCCESS;
}
-/*
- * do_bootefi_image() - execute EFI binary from command line
+/**
+ * do_bootefi_image() - execute EFI binary
+ *
+ * Set up memory image for the binary to be loaded, prepare device path, and
+ * then call do_bootefi_exec() to execute it.
*
* @image_opt: string of image start address
- * @fdt_opt: string of fdt start address
* Return: status code
- *
- * Set up memory image for the binary to be loaded, prepare
- * device path and then call do_bootefi_exec() to execute it.
*/
-static int do_bootefi_image(const char *image_opt, const char *fdt_opt)
+static int do_bootefi_image(const char *image_opt)
{
void *image_buf;
- struct efi_device_path *device_path, *image_path;
- struct efi_device_path *file_path = NULL;
unsigned long addr, size;
const char *size_str;
- efi_handle_t mem_handle = NULL, handle;
efi_status_t ret;
- /* Allow unaligned memory access */
- allow_unaligned();
-
- switch_to_non_secure_mode();
-
- /* Initialize EFI drivers */
- ret = efi_init_obj_list();
- if (ret != EFI_SUCCESS) {
- printf("Error: Cannot initialize UEFI sub-system, r = %lu\n",
- ret & ~EFI_ERROR_MASK);
- return CMD_RET_FAILURE;
- }
-
- ret = efi_install_fdt(fdt_opt);
- if (ret == EFI_INVALID_PARAMETER)
- return CMD_RET_USAGE;
- else if (ret != EFI_SUCCESS)
- return CMD_RET_FAILURE;
-
#ifdef CONFIG_CMD_BOOTEFI_HELLO
if (!strcmp(image_opt, "hello")) {
char *saddr;
image_buf = map_sysmem(addr, size);
memcpy(image_buf, __efi_helloworld_begin, size);
- device_path = NULL;
- image_path = NULL;
+ efi_free_pool(bootefi_device_path);
+ efi_free_pool(bootefi_image_path);
+ bootefi_device_path = NULL;
+ bootefi_image_path = NULL;
} else
#endif
{
return CMD_RET_USAGE;
image_buf = map_sysmem(addr, size);
-
- device_path = bootefi_device_path;
- image_path = bootefi_image_path;
}
+ ret = efi_run_image(image_buf, size);
+
+ if (ret != EFI_SUCCESS)
+ return CMD_RET_FAILURE;
+
+ return CMD_RET_SUCCESS;
+}
- if (!device_path && !image_path) {
+/**
+ * efi_run_image() - run loaded UEFI image
+ *
+ * @source_buffer: memory address of the UEFI image
+ * @source_size: size of the UEFI image
+ * Return: status code
+ */
+efi_status_t efi_run_image(void *source_buffer, efi_uintn_t source_size)
+{
+ efi_handle_t mem_handle = NULL, handle;
+ struct efi_device_path *file_path = NULL;
+ efi_status_t ret;
+
+ if (!bootefi_device_path || !bootefi_image_path) {
/*
* Special case for efi payload not loaded from disk,
* such as 'bootefi hello' or for example payload
* loaded directly into memory via JTAG, etc:
*/
file_path = efi_dp_from_mem(EFI_RESERVED_MEMORY_TYPE,
- (uintptr_t)image_buf, size);
+ (uintptr_t)source_buffer,
+ source_size);
/*
* Make sure that device for device_path exist
* in load_image(). Otherwise, shell and grub will fail.
if (ret != EFI_SUCCESS)
goto out;
} else {
- assert(device_path && image_path);
- file_path = efi_dp_append(device_path, image_path);
+ file_path = efi_dp_append(bootefi_device_path,
+ bootefi_image_path);
}
- ret = EFI_CALL(efi_load_image(false, efi_root,
- file_path, image_buf, size, &handle));
+ ret = EFI_CALL(efi_load_image(false, efi_root, file_path, source_buffer,
+ source_size, &handle));
if (ret != EFI_SUCCESS)
goto out;
ret = do_bootefi_exec(handle);
out:
- if (mem_handle)
- efi_delete_handle(mem_handle);
- if (file_path)
- efi_free_pool(file_path);
-
- if (ret != EFI_SUCCESS)
- return CMD_RET_FAILURE;
-
- return CMD_RET_SUCCESS;
+ efi_delete_handle(mem_handle);
+ efi_free_pool(file_path);
+ return ret;
}
#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
struct efi_loaded_image **loaded_image_infop)
{
efi_status_t ret;
+ u16 *load_options;
ret = efi_setup_loaded_image(device_path, image_path, image_objp,
loaded_image_infop);
return ret;
/* Transfer environment variable as load options */
- return set_load_options((efi_handle_t)*image_objp, load_options_path);
+ return set_load_options((efi_handle_t)*image_objp, load_options_path,
+ &load_options);
}
/**
}
/**
- * do_efi_selftest() - execute EFI Selftest
+ * do_efi_selftest() - execute EFI selftest
*
- * @fdt_opt: string of fdt start address
* Return: status code
- *
- * Execute EFI Selftest
*/
-static int do_efi_selftest(const char *fdt_opt)
+static int do_efi_selftest(void)
{
struct efi_loaded_image_obj *image_obj;
struct efi_loaded_image *loaded_image_info;
efi_status_t ret;
- /* Allow unaligned memory access */
- allow_unaligned();
-
- switch_to_non_secure_mode();
-
- /* Initialize EFI drivers */
- ret = efi_init_obj_list();
- if (ret != EFI_SUCCESS) {
- printf("Error: Cannot initialize UEFI sub-system, r = %lu\n",
- ret & ~EFI_ERROR_MASK);
- return CMD_RET_FAILURE;
- }
-
- ret = efi_install_fdt(fdt_opt);
- if (ret == EFI_INVALID_PARAMETER)
- return CMD_RET_USAGE;
- else if (ret != EFI_SUCCESS)
- return CMD_RET_FAILURE;
-
ret = bootefi_test_prepare(&image_obj, &loaded_image_info,
"\\selftest", "efi_selftest");
if (ret != EFI_SUCCESS)
}
#endif /* CONFIG_CMD_BOOTEFI_SELFTEST */
-/* Interpreter command to boot an arbitrary EFI image from memory */
+/**
+ * do_bootefi() - execute `bootefi` command
+ *
+ * @cmdtp: table entry describing command
+ * @flag: bitmap indicating how the command was invoked
+ * @argc: number of arguments
+ * @argv: command line arguments
+ * Return: status code
+ */
static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
+ efi_status_t ret;
+ void *fdt;
+
if (argc < 2)
return CMD_RET_USAGE;
+ /* Initialize EFI drivers */
+ ret = efi_init_obj_list();
+ if (ret != EFI_SUCCESS) {
+ printf("Error: Cannot initialize UEFI sub-system, r = %lu\n",
+ ret & ~EFI_ERROR_MASK);
+ return CMD_RET_FAILURE;
+ }
+
+ if (argc > 2) {
+ uintptr_t fdt_addr;
+
+ fdt_addr = simple_strtoul(argv[2], NULL, 16);
+ fdt = map_sysmem(fdt_addr, 0);
+ } else {
+ fdt = EFI_FDT_USE_INTERNAL;
+ }
+ ret = efi_install_fdt(fdt);
+ if (ret == EFI_INVALID_PARAMETER)
+ return CMD_RET_USAGE;
+ else if (ret != EFI_SUCCESS)
+ return CMD_RET_FAILURE;
+
if (!strcmp(argv[1], "bootmgr"))
- return do_efibootmgr(argc > 2 ? argv[2] : NULL);
+ return do_efibootmgr();
#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
else if (!strcmp(argv[1], "selftest"))
- return do_efi_selftest(argc > 2 ? argv[2] : NULL);
+ return do_efi_selftest();
#endif
- return do_bootefi_image(argv[1], argc > 2 ? argv[2] : NULL);
+ return do_bootefi_image(argv[1]);
}
#ifdef CONFIG_SYS_LONGHELP
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;
projects / oweals / u-boot.git / blobdiff