M: Alexander Graf <agraf@suse.de>
S: Maintained
T: git git://github.com/agraf/u-boot.git
-F: include/efi_loader.h
-F: lib/efi_loader/
+F: include/efi*
+F: lib/efi*
+F: test/py/tests/test_efi*
F: cmd/bootefi.c
FLATTENED DEVICE TREE
for testing that EFI is working at a basic level, and for bringing
up EFI support on a new architecture.
+source lib/efi_selftest/Kconfig
+
config CMD_BOOTMENU
bool "bootmenu"
select MENU
static uint8_t efi_obj_list_initalized;
-/*
- * When booting using the "bootefi" command, we don't know which
- * physical device the file came from. So we create a pseudo-device
- * called "bootefi" with the device path /bootefi.
- *
- * In addition to the originating device we also declare the file path
- * of "bootefi" based loads to be /bootefi.
- */
-static struct efi_device_path_file_path bootefi_image_path[] = {
- {
- .dp.type = DEVICE_PATH_TYPE_MEDIA_DEVICE,
- .dp.sub_type = DEVICE_PATH_SUB_TYPE_FILE_PATH,
- .dp.length = sizeof(bootefi_image_path[0]),
- .str = { 'b','o','o','t','e','f','i' },
- }, {
- .dp.type = DEVICE_PATH_TYPE_END,
- .dp.sub_type = DEVICE_PATH_SUB_TYPE_END,
- .dp.length = sizeof(bootefi_image_path[0]),
- }
-};
-
-static struct efi_device_path_file_path bootefi_device_path[] = {
- {
- .dp.type = DEVICE_PATH_TYPE_MEDIA_DEVICE,
- .dp.sub_type = DEVICE_PATH_SUB_TYPE_FILE_PATH,
- .dp.length = sizeof(bootefi_image_path[0]),
- .str = { 'b','o','o','t','e','f','i' },
- }, {
- .dp.type = DEVICE_PATH_TYPE_END,
- .dp.sub_type = DEVICE_PATH_SUB_TYPE_END,
- .dp.length = sizeof(bootefi_image_path[0]),
- }
-};
-
-/* The EFI loaded_image interface for the image executed via "bootefi" */
-static struct efi_loaded_image loaded_image_info = {
- .device_handle = bootefi_device_path,
- .file_path = bootefi_image_path,
-};
-
-/* The EFI object struct for the image executed via "bootefi" */
-static struct efi_object loaded_image_info_obj = {
- .handle = &loaded_image_info,
- .protocols = {
- {
- /*
- * When asking for the loaded_image interface, just
- * return handle which points to loaded_image_info
- */
- .guid = &efi_guid_loaded_image,
- .protocol_interface = &loaded_image_info,
- },
- {
- /*
- * When asking for the device path interface, return
- * bootefi_device_path
- */
- .guid = &efi_guid_device_path,
- .protocol_interface = bootefi_device_path,
- },
- {
- .guid = &efi_guid_console_control,
- .protocol_interface = (void *) &efi_console_control
- },
- {
- .guid = &efi_guid_device_path_to_text_protocol,
- .protocol_interface = (void *) &efi_device_path_to_text
- },
- },
-};
-
-/* The EFI object struct for the device the "bootefi" image was loaded from */
-static struct efi_object bootefi_device_obj = {
- .handle = bootefi_device_path,
- .protocols = {
- {
- /* When asking for the device path interface, return
- * bootefi_device_path */
- .guid = &efi_guid_device_path,
- .protocol_interface = bootefi_device_path
- }
- },
-};
+static struct efi_device_path *bootefi_image_path;
+static struct efi_device_path *bootefi_device_path;
/* Initialize and populate EFI object list */
static void efi_init_obj_list(void)
{
efi_obj_list_initalized = 1;
- list_add_tail(&loaded_image_info_obj.link, &efi_obj_list);
- list_add_tail(&bootefi_device_obj.link, &efi_obj_list);
efi_console_register();
#ifdef CONFIG_PARTITIONS
efi_disk_register();
efi_gop_register();
#endif
#ifdef CONFIG_NET
- void *nethandle = loaded_image_info.device_handle;
- efi_net_register(&nethandle);
-
- if (!memcmp(bootefi_device_path[0].str, "N\0e\0t", 6))
- loaded_image_info.device_handle = nethandle;
- else
- loaded_image_info.device_handle = bootefi_device_path;
+ efi_net_register();
#endif
#ifdef CONFIG_GENERATE_SMBIOS_TABLE
efi_smbios_register();
* 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)
+static unsigned long 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 = {};
+ ulong ret;
+
ulong (*entry)(void *image_handle, struct efi_system_table *st)
asmlinkage;
ulong fdt_pages, fdt_size, fdt_start, fdt_end;
const efi_guid_t fdt_guid = EFI_FDT_GUID;
bootm_headers_t img = { 0 };
+ /* Initialize and populate EFI object list */
+ if (!efi_obj_list_initalized)
+ efi_init_obj_list();
+
+ efi_setup_loaded_image(&loaded_image_info, &loaded_image_info_obj,
+ device_path, 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 callback entry
/* Load the EFI payload */
entry = efi_load_pe(efi, &loaded_image_info);
- if (!entry)
- return -ENOENT;
+ if (!entry) {
+ ret = -ENOENT;
+ goto exit;
+ }
- /* Initialize and populate EFI object list */
- if (!efi_obj_list_initalized)
- efi_init_obj_list();
+ /* we don't support much: */
+ env_set("efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_OsIndicationsSupported",
+ "{ro,boot}(blob)0000000000000000");
/* Call our payload! */
debug("%s:%d Jumping to 0x%lx\n", __func__, __LINE__, (long)entry);
if (setjmp(&loaded_image_info.exit_jmp)) {
- return loaded_image_info.exit_status;
+ ret = loaded_image_info.exit_status;
+ goto exit;
}
#ifdef CONFIG_ARM64
}
#endif
- return efi_do_enter(&loaded_image_info, &systab, entry);
+ ret = efi_do_enter(&loaded_image_info, &systab, entry);
+
+exit:
+ /* image has returned, loaded-image obj goes *poof*: */
+ list_del(&loaded_image_info_obj.link);
+
+ 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[])
return CMD_RET_USAGE;
#ifdef CONFIG_CMD_BOOTEFI_HELLO
if (!strcmp(argv[1], "hello")) {
- ulong size = __efi_hello_world_end - __efi_hello_world_begin;
-
- addr = CONFIG_SYS_LOAD_ADDR;
- memcpy((char *)addr, __efi_hello_world_begin, size);
+ ulong size = __efi_helloworld_end - __efi_helloworld_begin;
+
+ saddr = env_get("loadaddr");
+ if (saddr)
+ addr = simple_strtoul(saddr, NULL, 16);
+ else
+ addr = CONFIG_SYS_LOAD_ADDR;
+ memcpy((char *)addr, __efi_helloworld_begin, size);
} else
#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 = {};
+
+ 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
+ * callback entry
+ */
+ efi_save_gd();
+ /* Initialize and populate EFI object list */
+ if (!efi_obj_list_initalized)
+ efi_init_obj_list();
+ return efi_selftest(&loaded_image_info, &systab);
+ } 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);
}
printf("## Starting EFI application at %08lx ...\n", addr);
- r = do_bootefi_exec((void *)addr, (void*)fdt_addr);
+ r = do_bootefi_exec((void *)addr, (void *)fdt_addr,
+ bootefi_device_path, bootefi_image_path);
printf("## Application terminated, r = %lu\n",
r & ~EFI_ERROR_MASK);
" If specified, the device tree located at <fdt address> gets\n"
" exposed as EFI configuration table.\n"
#ifdef CONFIG_CMD_BOOTEFI_HELLO
- "hello\n"
- " - boot a sample Hello World application stored within U-Boot"
+ "bootefi hello\n"
+ " - boot a sample Hello World application stored within U-Boot\n"
+#endif
+#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
+ "bootefi selftest\n"
+ " - boot an EFI selftest application stored within U-Boot\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(
bootefi_help_text
);
-void efi_set_bootdev(const char *dev, const char *devnr, const char *path)
+static int parse_partnum(const char *devnr)
{
- __maybe_unused struct blk_desc *desc;
- char devname[32] = { 0 }; /* dp->str is u16[32] long */
- char *colon, *s;
-
-#if defined(CONFIG_BLK) || CONFIG_IS_ENABLED(ISO_PARTITION)
- desc = blk_get_dev(dev, simple_strtol(devnr, NULL, 10));
-#endif
-
-#ifdef CONFIG_BLK
- if (desc) {
- snprintf(devname, sizeof(devname), "%s", desc->bdev->name);
- } else
-#endif
-
- {
- /* Assemble the condensed device name we use in efi_disk.c */
- snprintf(devname, sizeof(devname), "%s%s", dev, devnr);
+ const char *str = strchr(devnr, ':');
+ if (str) {
+ str++;
+ return simple_strtoul(str, NULL, 16);
}
+ return 0;
+}
+
+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;
- colon = strchr(devname, ':');
+ if (strcmp(dev, "Net")) {
+ struct blk_desc *desc;
+ int part;
-#if CONFIG_IS_ENABLED(ISO_PARTITION)
- /* For ISOs we create partition block devices */
- if (desc && (desc->type != DEV_TYPE_UNKNOWN) &&
- (desc->part_type == PART_TYPE_ISO)) {
- if (!colon)
- snprintf(devname, sizeof(devname), "%s:1", devname);
+ desc = blk_get_dev(dev, simple_strtol(devnr, NULL, 10));
+ part = parse_partnum(devnr);
- colon = NULL;
- }
+ bootefi_device_path = efi_dp_from_part(desc, part);
+ } else {
+#ifdef CONFIG_NET
+ bootefi_device_path = efi_dp_from_eth();
#endif
+ }
- if (colon)
- *colon = '\0';
-
- /* Patch bootefi_device_path to the target device */
- memset(bootefi_device_path[0].str, 0, sizeof(bootefi_device_path[0].str));
- ascii2unicode(bootefi_device_path[0].str, devname);
+ if (!path)
+ return;
- /* Patch bootefi_image_path to the target file path */
- memset(bootefi_image_path[0].str, 0, sizeof(bootefi_image_path[0].str));
if (strcmp(dev, "Net")) {
/* Add leading / to fs paths, because they're absolute */
- snprintf(devname, sizeof(devname), "/%s", path);
+ snprintf(filename, sizeof(filename), "/%s", path);
} else {
- snprintf(devname, sizeof(devname), "%s", path);
+ snprintf(filename, sizeof(filename), "%s", path);
}
/* DOS style file path: */
- s = devname;
+ s = filename;
while ((s = strchr(s, '/')))
*s++ = '\\';
- ascii2unicode(bootefi_image_path[0].str, devname);
+ bootefi_image_path = efi_dp_from_file(NULL, 0, filename);
}
static inline int is_bootable(dos_partition_t *p)
{
- return p->boot_ind == 0x80;
+ return (p->sys_ind == 0xef) || (p->boot_ind == 0x80);
}
static void print_one_part(dos_partition_t *p, lbaint_t ext_part_sector,
static int part_test_dos(struct blk_desc *dev_desc)
{
- ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buffer, dev_desc->blksz);
+ ALLOC_CACHE_ALIGN_BUFFER(legacy_mbr, mbr, dev_desc->blksz);
- if (blk_dread(dev_desc, 0, 1, (ulong *)buffer) != 1)
+ if (blk_dread(dev_desc, 0, 1, (ulong *)mbr) != 1)
return -1;
- if (test_block_type(buffer) != DOS_MBR)
+ if (test_block_type((unsigned char *)mbr) != DOS_MBR)
return -1;
+ if (dev_desc->sig_type == SIG_TYPE_NONE &&
+ mbr->unique_mbr_signature != 0) {
+ dev_desc->sig_type = SIG_TYPE_MBR;
+ dev_desc->mbr_sig = mbr->unique_mbr_signature;
+ }
+
return 0;
}
static int is_gpt_valid(struct blk_desc *dev_desc, u64 lba,
gpt_header *pgpt_head, gpt_entry **pgpt_pte)
{
+ ALLOC_CACHE_ALIGN_BUFFER(legacy_mbr, mbr, dev_desc->blksz);
+
if (!dev_desc || !pgpt_head) {
printf("%s: Invalid Argument(s)\n", __func__);
return 0;
}
+ /* Read MBR Header from device */
+ if (blk_dread(dev_desc, 0, 1, (ulong *)mbr) != 1) {
+ printf("*** ERROR: Can't read MBR header ***\n");
+ return 0;
+ }
+
/* Read GPT Header from device */
if (blk_dread(dev_desc, (lbaint_t)lba, 1, pgpt_head) != 1) {
printf("*** ERROR: Can't read GPT header ***\n");
if (validate_gpt_header(pgpt_head, (lbaint_t)lba, dev_desc->lba))
return 0;
+ if (dev_desc->sig_type == SIG_TYPE_NONE) {
+ efi_guid_t empty = {};
+ if (memcmp(&pgpt_head->disk_guid, &empty, sizeof(empty))) {
+ dev_desc->sig_type = SIG_TYPE_GUID;
+ memcpy(&dev_desc->guid_sig, &pgpt_head->disk_guid,
+ sizeof(empty));
+ } else if (mbr->unique_mbr_signature != 0) {
+ dev_desc->sig_type = SIG_TYPE_MBR;
+ dev_desc->mbr_sig = mbr->unique_mbr_signature;
+ }
+ }
+
/* Read and allocate Partition Table Entries */
*pgpt_pte = alloc_read_gpt_entries(dev_desc, pgpt_head);
if (*pgpt_pte == NULL) {
extern char __entry_text_start[], __entry_text_end[];
extern char __initdata_begin[], __initdata_end[];
extern char __start_rodata[], __end_rodata[];
-extern char __efi_hello_world_begin[];
-extern char __efi_hello_world_end[];
+extern char __efi_helloworld_begin[];
+extern char __efi_helloworld_end[];
/* Start and end of .ctors section - used for constructor calls. */
extern char __ctors_start[], __ctors_end[];
#ifndef BLK_H
#define BLK_H
+#include <efi.h>
+
#ifdef CONFIG_SYS_64BIT_LBA
typedef uint64_t lbaint_t;
#define LBAFlength "ll"
#define BLK_PRD_SIZE 20
#define BLK_REV_SIZE 8
+/*
+ * Identifies the partition table type (ie. MBR vs GPT GUID) signature
+ */
+enum sig_type {
+ SIG_TYPE_NONE,
+ SIG_TYPE_MBR,
+ SIG_TYPE_GUID,
+
+ SIG_TYPE_COUNT /* Number of signature types */
+};
+
/*
* With driver model (CONFIG_BLK) this is uclass platform data, accessible
* with dev_get_uclass_platdata(dev)
char vendor[BLK_VEN_SIZE + 1]; /* device vendor string */
char product[BLK_PRD_SIZE + 1]; /* device product number */
char revision[BLK_REV_SIZE + 1]; /* firmware revision */
+ enum sig_type sig_type; /* Partition table signature type */
+ union {
+ uint32_t mbr_sig; /* MBR integer signature */
+ efi_guid_t guid_sig; /* GPT GUID Signature */
+ };
#if CONFIG_IS_ENABLED(BLK)
/*
* For now we have a few functions which take struct blk_desc as a
#define BOOTENV_SHARED_EFI \
"boot_efi_binary=" \
+ "if fdt addr ${fdt_addr_r}; then " \
+ "bootefi bootmgr ${fdt_addr_r};" \
+ "else " \
+ "bootefi bootmgr ${fdtcontroladdr};" \
+ "fi;" \
"load ${devtype} ${devnum}:${distro_bootpart} " \
"${kernel_addr_r} efi/boot/"BOOTEFI_NAME"; " \
"if fdt addr ${fdt_addr_r}; then " \
struct efi_device_path;
+typedef struct {
+ u8 b[16];
+} efi_guid_t;
+
#define EFI_BITS_PER_LONG BITS_PER_LONG
/*
#define EFI_IP_ADDRESS_CONFLICT (EFI_ERROR_MASK | 34)
#define EFI_HTTP_ERROR (EFI_ERROR_MASK | 35)
+#define EFI_WARN_DELETE_FAILURE 2
+
typedef unsigned long efi_status_t;
typedef u64 efi_physical_addr_t;
typedef u64 efi_virtual_addr_t;
/* The code portions of a loaded Boot Services Driver */
EFI_BOOT_SERVICES_CODE,
/*
- * The data portions of a loaded Boot Serves Driver and
+ * The data portions of a loaded Boot Services Driver and
* the default data allocation type used by a Boot Services
* Driver to allocate pool memory.
*/
/* Start and end of U-Boot image (for payload) */
extern char _binary_u_boot_bin_start[], _binary_u_boot_bin_end[];
+/*
+ * Variable Attributes
+ */
+#define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001
+#define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002
+#define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004
+#define EFI_VARIABLE_HARDWARE_ERROR_RECORD 0x0000000000000008
+#define EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS 0x0000000000000010
+#define EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS 0x0000000000000020
+#define EFI_VARIABLE_APPEND_WRITE 0x0000000000000040
+
+#define EFI_VARIABLE_MASK (EFI_VARIABLE_NON_VOLATILE | \
+ EFI_VARIABLE_BOOTSERVICE_ACCESS | \
+ EFI_VARIABLE_RUNTIME_ACCESS | \
+ EFI_VARIABLE_HARDWARE_ERROR_RECORD | \
+ EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS | \
+ EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS | \
+ EFI_VARIABLE_APPEND_WRITE)
+
/**
* efi_get_sys_table() - Get access to the main EFI system table
*
};
#define UINTN size_t
+typedef long INTN;
+typedef uint16_t *efi_string_t;
#define EVT_TIMER 0x80000000
#define EVT_RUNTIME 0x40000000
EFI_GUID(0x00000000, 0x0000, 0x0000, 0x00, 0x00, \
0x00, 0x00, 0x00, 0x00, 0x00, 0x00)
+#define EFI_GLOBAL_VARIABLE_GUID \
+ EFI_GUID(0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, \
+ 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c)
+
#define LOADED_IMAGE_PROTOCOL_GUID \
EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, \
0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
u8 type;
u8 sub_type;
u16 length;
-};
+} __packed;
struct efi_mac_addr {
u8 addr[32];
-};
+} __packed;
+
+#define DEVICE_PATH_TYPE_HARDWARE_DEVICE 0x01
+# define DEVICE_PATH_SUB_TYPE_VENDOR 0x04
+
+struct efi_device_path_vendor {
+ struct efi_device_path dp;
+ efi_guid_t guid;
+ u8 vendor_data[];
+} __packed;
+
+#define DEVICE_PATH_TYPE_ACPI_DEVICE 0x02
+# define DEVICE_PATH_SUB_TYPE_ACPI_DEVICE 0x01
+
+#define EFI_PNP_ID(ID) (u32)(((ID) << 16) | 0x41D0)
+#define EISA_PNP_ID(ID) EFI_PNP_ID(ID)
+#define EISA_PNP_NUM(ID) ((ID) >> 16)
+
+struct efi_device_path_acpi_path {
+ struct efi_device_path dp;
+ u32 hid;
+ u32 uid;
+} __packed;
#define DEVICE_PATH_TYPE_MESSAGING_DEVICE 0x03
+# define DEVICE_PATH_SUB_TYPE_MSG_USB 0x05
# define DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR 0x0b
+# define DEVICE_PATH_SUB_TYPE_MSG_USB_CLASS 0x0f
+# define DEVICE_PATH_SUB_TYPE_MSG_SD 0x1a
+# define DEVICE_PATH_SUB_TYPE_MSG_MMC 0x1d
+
+struct efi_device_path_usb {
+ struct efi_device_path dp;
+ u8 parent_port_number;
+ u8 usb_interface;
+} __packed;
struct efi_device_path_mac_addr {
struct efi_device_path dp;
struct efi_mac_addr mac;
u8 if_type;
-};
+} __packed;
+
+struct efi_device_path_usb_class {
+ struct efi_device_path dp;
+ u16 vendor_id;
+ u16 product_id;
+ u8 device_class;
+ u8 device_subclass;
+ u8 device_protocol;
+} __packed;
+
+struct efi_device_path_sd_mmc_path {
+ struct efi_device_path dp;
+ u8 slot_number;
+} __packed;
#define DEVICE_PATH_TYPE_MEDIA_DEVICE 0x04
+# define DEVICE_PATH_SUB_TYPE_HARD_DRIVE_PATH 0x01
+# define DEVICE_PATH_SUB_TYPE_CDROM_PATH 0x02
# define DEVICE_PATH_SUB_TYPE_FILE_PATH 0x04
+struct efi_device_path_hard_drive_path {
+ struct efi_device_path dp;
+ u32 partition_number;
+ u64 partition_start;
+ u64 partition_end;
+ u8 partition_signature[16];
+ u8 partmap_type;
+ u8 signature_type;
+} __packed;
+
+struct efi_device_path_cdrom_path {
+ struct efi_device_path dp;
+ u32 boot_entry;
+ u64 partition_start;
+ u64 partition_end;
+} __packed;
+
struct efi_device_path_file_path {
struct efi_device_path dp;
- u16 str[32];
-};
+ u16 str[];
+} __packed;
#define BLOCK_IO_GUID \
EFI_GUID(0x964e5b21, 0x6459, 0x11d2, \
void *reset;
efi_status_t (EFIAPI *output_string)(
struct efi_simple_text_output_protocol *this,
- const unsigned short *str);
+ const efi_string_t str);
efi_status_t (EFIAPI *test_string)(
struct efi_simple_text_output_protocol *this,
- const unsigned short *str);
+ const efi_string_t str);
efi_status_t(EFIAPI *query_mode)(
struct efi_simple_text_output_protocol *this,
unsigned long mode_number, unsigned long *columns,
EFI_GUID(0x8b843e20, 0x8132, 0x4852, \
0x90, 0xcc, 0x55, 0x1a, 0x4e, 0x4a, 0x7f, 0x1c)
-struct efi_device_path_protocol
-{
- uint8_t type;
- uint8_t sub_type;
- uint16_t length;
- uint8_t data[];
-};
-
struct efi_device_path_to_text_protocol
{
uint16_t *(EFIAPI *convert_device_node_to_text)(
- struct efi_device_path_protocol *device_node,
+ struct efi_device_path *device_node,
bool display_only,
bool allow_shortcuts);
uint16_t *(EFIAPI *convert_device_path_to_text)(
- struct efi_device_path_protocol *device_path,
+ struct efi_device_path *device_path,
bool display_only,
bool allow_shortcuts);
};
struct efi_pxe_mode *mode;
};
+#define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID \
+ EFI_GUID(0x964e5b22, 0x6459, 0x11d2, \
+ 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
+#define EFI_FILE_PROTOCOL_REVISION 0x00010000
+
+struct efi_file_handle {
+ u64 rev;
+ efi_status_t (EFIAPI *open)(struct efi_file_handle *file,
+ struct efi_file_handle **new_handle,
+ s16 *file_name, u64 open_mode, u64 attributes);
+ efi_status_t (EFIAPI *close)(struct efi_file_handle *file);
+ efi_status_t (EFIAPI *delete)(struct efi_file_handle *file);
+ efi_status_t (EFIAPI *read)(struct efi_file_handle *file,
+ u64 *buffer_size, void *buffer);
+ efi_status_t (EFIAPI *write)(struct efi_file_handle *file,
+ u64 *buffer_size, void *buffer);
+ efi_status_t (EFIAPI *getpos)(struct efi_file_handle *file,
+ u64 *pos);
+ efi_status_t (EFIAPI *setpos)(struct efi_file_handle *file,
+ u64 pos);
+ efi_status_t (EFIAPI *getinfo)(struct efi_file_handle *file,
+ efi_guid_t *info_type, u64 *buffer_size, void *buffer);
+ efi_status_t (EFIAPI *setinfo)(struct efi_file_handle *file,
+ efi_guid_t *info_type, u64 buffer_size, void *buffer);
+ efi_status_t (EFIAPI *flush)(struct efi_file_handle *file);
+};
+
+#define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID \
+ EFI_GUID(0x964e5b22, 0x6459, 0x11d2, \
+ 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
+#define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION 0x00010000
+
+struct efi_simple_file_system_protocol {
+ u64 rev;
+ efi_status_t (EFIAPI *open_volume)(struct efi_simple_file_system_protocol *this,
+ struct efi_file_handle **root);
+};
+
+#define EFI_FILE_INFO_GUID \
+ EFI_GUID(0x9576e92, 0x6d3f, 0x11d2, \
+ 0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b)
+
+#define EFI_FILE_MODE_READ 0x0000000000000001
+#define EFI_FILE_MODE_WRITE 0x0000000000000002
+#define EFI_FILE_MODE_CREATE 0x8000000000000000
+
+#define EFI_FILE_READ_ONLY 0x0000000000000001
+#define EFI_FILE_HIDDEN 0x0000000000000002
+#define EFI_FILE_SYSTEM 0x0000000000000004
+#define EFI_FILE_RESERVED 0x0000000000000008
+#define EFI_FILE_DIRECTORY 0x0000000000000010
+#define EFI_FILE_ARCHIVE 0x0000000000000020
+#define EFI_FILE_VALID_ATTR 0x0000000000000037
+
+struct efi_file_info {
+ u64 size;
+ u64 file_size;
+ u64 physical_size;
+ struct efi_time create_time;
+ struct efi_time last_access_time;
+ struct efi_time modification_time;
+ u64 attribute;
+ s16 file_name[0];
+};
+
#endif
int __efi_entry_check(void);
int __efi_exit_check(void);
+const char *__efi_nesting(void);
const char *__efi_nesting_inc(void);
const char *__efi_nesting_dec(void);
})
/*
- * Callback into UEFI world from u-boot:
+ * Call non-void UEFI function from u-boot and retrieve return value:
*/
-#define EFI_CALL(exp) do { \
+#define EFI_CALL(exp) ({ \
+ debug("%sEFI: Call: %s\n", __efi_nesting_inc(), #exp); \
+ assert(__efi_exit_check()); \
+ typeof(exp) _r = exp; \
+ assert(__efi_entry_check()); \
+ debug("%sEFI: %lu returned by %s\n", __efi_nesting_dec(), \
+ (unsigned long)((uintptr_t)_r & ~EFI_ERROR_MASK), #exp); \
+ _r; \
+})
+
+/*
+ * Call void UEFI function from u-boot:
+ */
+#define EFI_CALL_VOID(exp) do { \
debug("%sEFI: Call: %s\n", __efi_nesting_inc(), #exp); \
assert(__efi_exit_check()); \
exp; \
debug("%sEFI: Return From: %s\n", __efi_nesting_dec(), #exp); \
} while(0)
+/*
+ * Write GUID
+ */
+#define EFI_PRINT_GUID(txt, guid) ({ \
+ debug("%sEFI: %s %pUl\n", __efi_nesting(), txt, guid); \
+ })
+
extern struct efi_runtime_services efi_runtime_services;
extern struct efi_system_table systab;
extern const struct efi_console_control_protocol efi_console_control;
extern const struct efi_device_path_to_text_protocol efi_device_path_to_text;
+uint16_t *efi_dp_str(struct efi_device_path *dp);
+
+extern const efi_guid_t efi_global_variable_guid;
extern const efi_guid_t efi_guid_console_control;
extern const efi_guid_t efi_guid_device_path;
extern const efi_guid_t efi_guid_loaded_image;
extern const efi_guid_t efi_guid_device_path_to_text_protocol;
+extern const efi_guid_t efi_simple_file_system_protocol_guid;
+extern const efi_guid_t efi_file_info_guid;
extern unsigned int __efi_runtime_start, __efi_runtime_stop;
extern unsigned int __efi_runtime_rel_start, __efi_runtime_rel_stop;
* @nofify_function: Function to call when the event is triggered
* @notify_context: Data to be passed to the notify function
* @trigger_type: Type of timer, see efi_set_timer
- * @signaled: The notify function was already called
+ * @queued: The notification functionis queued
+ * @signaled: The event occured
*/
struct efi_event {
uint32_t type;
u64 trigger_next;
u64 trigger_time;
enum efi_timer_delay trigger_type;
+ int queued;
int signaled;
};
/* Called by bootefi to make GOP (graphical) interface available */
int efi_gop_register(void);
/* Called by bootefi to make the network interface available */
-int efi_net_register(void **handle);
+int efi_net_register(void);
/* Called by bootefi to make SMBIOS tables available */
void efi_smbios_register(void);
+struct efi_simple_file_system_protocol *
+efi_fs_from_path(struct efi_device_path *fp);
+
/* Called by networking code to memorize the dhcp ack package */
void efi_net_set_dhcp_ack(void *pkt, int len);
/* Call this to signal an event */
void efi_signal_event(struct efi_event *event);
+/* open file system: */
+struct efi_simple_file_system_protocol *efi_simple_file_system(
+ struct blk_desc *desc, int part, struct efi_device_path *dp);
+
+/* open file from device-path: */
+struct efi_file_handle *efi_file_from_path(struct efi_device_path *fp);
+
+
/* Generic EFI memory allocator, call this to get memory */
void *efi_alloc(uint64_t len, int memory_type);
/* More specific EFI memory allocator, called by EFI payloads */
int efi_memory_init(void);
/* Adds new or overrides configuration table entry to the system table */
efi_status_t efi_install_configuration_table(const efi_guid_t *guid, void *table);
+void efi_setup_loaded_image(struct efi_loaded_image *info, struct efi_object *obj,
+ struct efi_device_path *device_path,
+ struct efi_device_path *file_path);
+efi_status_t efi_load_image_from_path(struct efi_device_path *file_path,
+ void **buffer);
#ifdef CONFIG_EFI_LOADER_BOUNCE_BUFFER
extern void *efi_bounce_buffer;
#define EFI_LOADER_BOUNCE_BUFFER_SIZE (64 * 1024 * 1024)
#endif
+
+struct efi_device_path *efi_dp_next(const struct efi_device_path *dp);
+int efi_dp_match(struct efi_device_path *a, struct efi_device_path *b);
+struct efi_object *efi_dp_find_obj(struct efi_device_path *dp,
+ struct efi_device_path **rem);
+unsigned efi_dp_size(const struct efi_device_path *dp);
+struct efi_device_path *efi_dp_dup(const struct efi_device_path *dp);
+struct efi_device_path *efi_dp_append(const struct efi_device_path *dp1,
+ const struct efi_device_path *dp2);
+struct efi_device_path *efi_dp_append_node(const struct efi_device_path *dp,
+ const struct efi_device_path *node);
+
+
+struct efi_device_path *efi_dp_from_dev(struct udevice *dev);
+struct efi_device_path *efi_dp_from_part(struct blk_desc *desc, int part);
+struct efi_device_path *efi_dp_from_file(struct blk_desc *desc, int part,
+ const char *path);
+struct efi_device_path *efi_dp_from_eth(void);
+void efi_dp_split_file_path(struct efi_device_path *full_path,
+ struct efi_device_path **device_path,
+ struct efi_device_path **file_path);
+
+#define EFI_DP_TYPE(_dp, _type, _subtype) \
+ (((_dp)->type == DEVICE_PATH_TYPE_##_type) && \
+ ((_dp)->sub_type == DEVICE_PATH_SUB_TYPE_##_subtype))
+
/* Convert strings from normal C strings to uEFI strings */
static inline void ascii2unicode(u16 *unicode, const char *ascii)
{
struct efi_time_cap *capabilities);
void efi_get_time_init(void);
+#ifdef CONFIG_CMD_BOOTEFI_SELFTEST
+/*
+ * Entry point for the tests of the EFI API.
+ * It is called by 'bootefi selftest'
+ */
+efi_status_t EFIAPI efi_selftest(efi_handle_t image_handle,
+ struct efi_system_table *systab);
+#endif
+
+efi_status_t EFIAPI efi_get_variable(s16 *variable_name,
+ efi_guid_t *vendor, u32 *attributes,
+ unsigned long *data_size, void *data);
+efi_status_t EFIAPI efi_get_next_variable(
+ unsigned long *variable_name_size,
+ s16 *variable_name, efi_guid_t *vendor);
+efi_status_t EFIAPI efi_set_variable(s16 *variable_name,
+ efi_guid_t *vendor, u32 attributes,
+ unsigned long data_size, void *data);
+
+void *efi_bootmgr_load(struct efi_device_path **device_path,
+ struct efi_device_path **file_path);
+
#else /* defined(EFI_LOADER) && !defined(CONFIG_SPL_BUILD) */
/* Without CONFIG_EFI_LOADER we don't have a runtime section, stub it out */
--- /dev/null
+/*
+ * EFI application loader
+ *
+ * Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _EFI_SELFTEST_H
+#define _EFI_SELFTEST_H
+
+#include <common.h>
+#include <efi.h>
+#include <efi_api.h>
+#include <linker_lists.h>
+
+/*
+ * Prints an error message.
+ *
+ * @... format string followed by fields to print
+ */
+#define efi_st_error(...) \
+ efi_st_printf("%s(%u):\nERROR: ", __FILE__, __LINE__); \
+ efi_st_printf(__VA_ARGS__) \
+
+/*
+ * A test may be setup and executed at boottime,
+ * it may be setup at boottime and executed at runtime,
+ * or it may be setup and executed at runtime.
+ */
+enum efi_test_phase {
+ EFI_EXECUTE_BEFORE_BOOTTIME_EXIT = 1,
+ EFI_SETUP_BEFORE_BOOTTIME_EXIT,
+ EFI_SETUP_AFTER_BOOTTIME_EXIT,
+};
+
+extern struct efi_simple_text_output_protocol *con_out;
+extern struct efi_simple_input_interface *con_in;
+
+/*
+ * Exit the boot services.
+ *
+ * The size of the memory map is determined.
+ * Pool memory is allocated to copy the memory map.
+ * The memory amp is copied and the map key is obtained.
+ * The map key is used to exit the boot services.
+ */
+void efi_st_exit_boot_services(void);
+
+/*
+ * Print a pointer to an u16 string
+ *
+ * @pointer: pointer
+ * @buf: pointer to buffer address
+ * on return position of terminating zero word
+ */
+void efi_st_printf(const char *fmt, ...)
+ __attribute__ ((format (__printf__, 1, 2)));
+
+/*
+ * Reads an Unicode character from the input device.
+ *
+ * @return: Unicode character
+ */
+u16 efi_st_get_key(void);
+
+/**
+ * struct efi_unit_test - EFI unit test
+ *
+ * An efi_unit_test provides a interface to an EFI unit test.
+ *
+ * @name: name of unit test
+ * @phase: specifies when setup and execute are executed
+ * @setup: set up the unit test
+ * @teardown: tear down the unit test
+ * @execute: execute the unit test
+ */
+struct efi_unit_test {
+ const char *name;
+ const enum efi_test_phase phase;
+ int (*setup)(const efi_handle_t handle,
+ const struct efi_system_table *systable);
+ int (*execute)(void);
+ int (*teardown)(void);
+};
+
+/* Declare a new EFI unit test */
+#define EFI_UNIT_TEST(__name) \
+ ll_entry_declare(struct efi_unit_test, __name, efi_unit_test)
+
+#endif /* _EFI_SELFTEST_H */
#define U_BOOT_PART_TYPE(__name) \
ll_entry_declare(struct part_driver, __name, part_driver)
-#if CONFIG_IS_ENABLED(EFI_PARTITION)
#include <part_efi.h>
+
+#if CONFIG_IS_ENABLED(EFI_PARTITION)
/* disk/part_efi.c */
/**
* write_gpt_table() - Write the GUID Partition Table to disk
/* linux/include/efi.h */
typedef u16 efi_char16_t;
-typedef struct {
- u8 b[16];
-} efi_guid_t;
-
/* based on linux/include/genhd.h */
struct partition {
u8 boot_ind; /* 0x80 - active */
#define IMAGE_NUMBEROF_DIRECTORY_ENTRIES 16
+/* PE32+ Subsystem type for EFI images */
+#define IMAGE_SUBSYSTEM_EFI_APPLICATION 10
+#define IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER 11
+#define IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER 12
+#define IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER 13
+
typedef struct _IMAGE_OPTIONAL_HEADER64 {
uint16_t Magic; /* 0x20b */
uint8_t MajorLinkerVersion;
obj-$(CONFIG_EFI) += efi/
obj-$(CONFIG_EFI_LOADER) += efi_loader/
+obj-$(CONFIG_EFI_LOADER) += efi_selftest/
obj-$(CONFIG_LZMA) += lzma/
obj-$(CONFIG_LZO) += lzo/
obj-$(CONFIG_BZIP2) += bzip2/
CFLAGS_helloworld.o := $(CFLAGS_EFI)
CFLAGS_REMOVE_helloworld.o := $(CFLAGS_NON_EFI)
-efiprogs-$(CONFIG_CMD_BOOTEFI_HELLO_COMPILE) += helloworld.efi
-always := $(efiprogs-y)
+ifneq ($(CONFIG_CMD_BOOTEFI_HELLO_COMPILE),)
+always += helloworld.efi
+endif
obj-$(CONFIG_CMD_BOOTEFI_HELLO) += helloworld_efi.o
obj-y += efi_image_loader.o efi_boottime.o efi_runtime.o efi_console.o
-obj-y += efi_memory.o efi_device_path_to_text.o
+obj-y += efi_memory.o efi_device_path_to_text.o efi_device_path.o
+obj-y += efi_file.o efi_variable.o efi_bootmgr.o
obj-$(CONFIG_LCD) += efi_gop.o
obj-$(CONFIG_DM_VIDEO) += efi_gop.o
obj-$(CONFIG_PARTITIONS) += efi_disk.o
--- /dev/null
+/*
+ * EFI utils
+ *
+ * Copyright (c) 2017 Rob Clark
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <charset.h>
+#include <malloc.h>
+#include <efi_loader.h>
+
+static const struct efi_boot_services *bs;
+static const struct efi_runtime_services *rs;
+
+#define LOAD_OPTION_ACTIVE 0x00000001
+#define LOAD_OPTION_FORCE_RECONNECT 0x00000002
+#define LOAD_OPTION_HIDDEN 0x00000008
+
+/*
+ * bootmgr implements the logic of trying to find a payload to boot
+ * based on the BootOrder + BootXXXX variables, and then loading it.
+ *
+ * TODO detecting a special key held (f9?) and displaying a boot menu
+ * like you would get on a PC would be clever.
+ *
+ * TODO if we had a way to write and persist variables after the OS
+ * has started, we'd also want to check OsIndications to see if we
+ * should do normal or recovery boot.
+ */
+
+
+/*
+ * See section 3.1.3 in the v2.7 UEFI spec for more details on
+ * the layout of EFI_LOAD_OPTION. In short it is:
+ *
+ * typedef struct _EFI_LOAD_OPTION {
+ * UINT32 Attributes;
+ * UINT16 FilePathListLength;
+ * // CHAR16 Description[]; <-- variable length, NULL terminated
+ * // EFI_DEVICE_PATH_PROTOCOL FilePathList[]; <-- FilePathListLength bytes
+ * // UINT8 OptionalData[];
+ * } EFI_LOAD_OPTION;
+ */
+struct load_option {
+ u32 attributes;
+ u16 file_path_length;
+ u16 *label;
+ struct efi_device_path *file_path;
+ u8 *optional_data;
+};
+
+/* parse an EFI_LOAD_OPTION, as described above */
+static void parse_load_option(struct load_option *lo, void *ptr)
+{
+ lo->attributes = *(u32 *)ptr;
+ ptr += sizeof(u32);
+
+ lo->file_path_length = *(u16 *)ptr;
+ ptr += sizeof(u16);
+
+ lo->label = ptr;
+ ptr += (utf16_strlen(lo->label) + 1) * 2;
+
+ lo->file_path = ptr;
+ ptr += lo->file_path_length;
+
+ lo->optional_data = ptr;
+}
+
+/* free() the result */
+static void *get_var(u16 *name, const efi_guid_t *vendor,
+ unsigned long *size)
+{
+ efi_guid_t *v = (efi_guid_t *)vendor;
+ efi_status_t ret;
+ void *buf = NULL;
+
+ *size = 0;
+ EFI_CALL(ret = rs->get_variable((s16 *)name, v, NULL, size, buf));
+ if (ret == EFI_BUFFER_TOO_SMALL) {
+ buf = malloc(*size);
+ EFI_CALL(ret = rs->get_variable((s16 *)name, v, NULL, size, buf));
+ }
+
+ if (ret != EFI_SUCCESS) {
+ free(buf);
+ *size = 0;
+ return NULL;
+ }
+
+ return buf;
+}
+
+/*
+ * Attempt to load load-option number 'n', returning device_path and file_path
+ * if successful. This checks that the EFI_LOAD_OPTION is active (enabled)
+ * and that the specified file to boot exists.
+ */
+static void *try_load_entry(uint16_t n, struct efi_device_path **device_path,
+ struct efi_device_path **file_path)
+{
+ struct load_option lo;
+ u16 varname[] = L"Boot0000";
+ u16 hexmap[] = L"0123456789ABCDEF";
+ void *load_option, *image = NULL;
+ unsigned long size;
+
+ varname[4] = hexmap[(n & 0xf000) >> 12];
+ varname[5] = hexmap[(n & 0x0f00) >> 8];
+ varname[6] = hexmap[(n & 0x00f0) >> 4];
+ varname[7] = hexmap[(n & 0x000f) >> 0];
+
+ load_option = get_var(varname, &efi_global_variable_guid, &size);
+ if (!load_option)
+ return NULL;
+
+ parse_load_option(&lo, load_option);
+
+ if (lo.attributes & LOAD_OPTION_ACTIVE) {
+ efi_status_t ret;
+ u16 *str = NULL;
+
+ debug("%s: trying to load \"%ls\" from: %ls\n", __func__,
+ lo.label, (str = efi_dp_str(lo.file_path)));
+ efi_free_pool(str);
+
+ ret = efi_load_image_from_path(lo.file_path, &image);
+
+ if (ret != EFI_SUCCESS)
+ goto error;
+
+ printf("Booting: %ls\n", lo.label);
+ efi_dp_split_file_path(lo.file_path, device_path, file_path);
+ }
+
+error:
+ free(load_option);
+
+ return image;
+}
+
+/*
+ * Attempt to load, in the order specified by BootOrder EFI variable, the
+ * available load-options, finding and returning the first one that can
+ * be loaded successfully.
+ */
+void *efi_bootmgr_load(struct efi_device_path **device_path,
+ struct efi_device_path **file_path)
+{
+ uint16_t *bootorder;
+ unsigned long size;
+ void *image = NULL;
+ int i, num;
+
+ __efi_entry_check();
+
+ bs = systab.boottime;
+ rs = systab.runtime;
+
+ bootorder = get_var(L"BootOrder", &efi_global_variable_guid, &size);
+ if (!bootorder)
+ goto error;
+
+ num = size / sizeof(uint16_t);
+ for (i = 0; i < num; i++) {
+ debug("%s: trying to load Boot%04X\n", __func__, bootorder[i]);
+ image = try_load_entry(bootorder[i], device_path, file_path);
+ if (image)
+ break;
+ }
+
+ free(bootorder);
+
+error:
+ __efi_exit_check();
+
+ return image;
+}
#include <common.h>
#include <efi_loader.h>
+#include <environment.h>
#include <malloc.h>
#include <asm/global_data.h>
#include <libfdt_env.h>
DECLARE_GLOBAL_DATA_PTR;
+/* Task priority level */
+static UINTN efi_tpl = TPL_APPLICATION;
+
/* This list contains all the EFI objects our payload has access to */
LIST_HEAD(efi_obj_list);
return &indent[max - level];
}
+const char *__efi_nesting(void)
+{
+ return indent_string(nesting_level);
+}
+
const char *__efi_nesting_inc(void)
{
return indent_string(nesting_level++);
void efi_signal_event(struct efi_event *event)
{
- if (event->signaled)
- return;
- event->signaled = 1;
- if (event->type & EVT_NOTIFY_SIGNAL) {
- EFI_CALL(event->notify_function(event, event->notify_context));
+ if (event->notify_function) {
+ event->queued = 1;
+ /* Check TPL */
+ if (efi_tpl >= event->notify_tpl)
+ return;
+ EFI_CALL_VOID(event->notify_function(event,
+ event->notify_context));
}
+ event->queued = 0;
}
static efi_status_t efi_unsupported(const char *funcname)
static unsigned long EFIAPI efi_raise_tpl(UINTN new_tpl)
{
+ UINTN old_tpl = efi_tpl;
+
EFI_ENTRY("0x%zx", new_tpl);
- return EFI_EXIT(0);
+
+ if (new_tpl < efi_tpl)
+ debug("WARNING: new_tpl < current_tpl in %s\n", __func__);
+ efi_tpl = new_tpl;
+ if (efi_tpl > TPL_HIGH_LEVEL)
+ efi_tpl = TPL_HIGH_LEVEL;
+
+ EFI_EXIT(EFI_SUCCESS);
+ return old_tpl;
}
static void EFIAPI efi_restore_tpl(UINTN old_tpl)
{
EFI_ENTRY("0x%zx", old_tpl);
- efi_unsupported(__func__);
+
+ if (old_tpl > efi_tpl)
+ debug("WARNING: old_tpl > current_tpl in %s\n", __func__);
+ efi_tpl = old_tpl;
+ if (efi_tpl > TPL_HIGH_LEVEL)
+ efi_tpl = TPL_HIGH_LEVEL;
+
+ EFI_EXIT(EFI_SUCCESS);
}
static efi_status_t EFIAPI efi_allocate_pages_ext(int type, int memory_type,
efi_events[i].notify_context = notify_context;
/* Disable timers on bootup */
efi_events[i].trigger_next = -1ULL;
+ efi_events[i].queued = 0;
efi_events[i].signaled = 0;
*event = &efi_events[i];
return EFI_SUCCESS;
u64 now = timer_get_us();
for (i = 0; i < ARRAY_SIZE(efi_events); ++i) {
- if (!efi_events[i].type ||
- !(efi_events[i].type & EVT_TIMER) ||
- efi_events[i].trigger_type == EFI_TIMER_STOP ||
+ if (!efi_events[i].type)
+ continue;
+ if (efi_events[i].queued)
+ efi_signal_event(&efi_events[i]);
+ if (!(efi_events[i].type & EVT_TIMER) ||
now < efi_events[i].trigger_next)
continue;
- if (efi_events[i].trigger_type == EFI_TIMER_PERIODIC) {
+ switch (efi_events[i].trigger_type) {
+ case EFI_TIMER_RELATIVE:
+ efi_events[i].trigger_type = EFI_TIMER_STOP;
+ break;
+ case EFI_TIMER_PERIODIC:
efi_events[i].trigger_next +=
efi_events[i].trigger_time;
- efi_events[i].signaled = 0;
+ break;
+ default:
+ continue;
}
+ efi_events[i].signaled = 1;
efi_signal_event(&efi_events[i]);
}
WATCHDOG_RESET();
}
event->trigger_type = type;
event->trigger_time = trigger_time;
+ event->signaled = 0;
return EFI_SUCCESS;
}
return EFI_INVALID_PARAMETER;
/* Check parameters */
if (!num_events || !event)
return EFI_EXIT(EFI_INVALID_PARAMETER);
+ /* Check TPL */
+ if (efi_tpl != TPL_APPLICATION)
+ return EFI_EXIT(EFI_UNSUPPORTED);
for (i = 0; i < num_events; ++i) {
for (j = 0; j < ARRAY_SIZE(efi_events); ++j) {
if (event[i] == &efi_events[j])
known_event:
if (!event[i]->type || event[i]->type & EVT_NOTIFY_SIGNAL)
return EFI_EXIT(EFI_INVALID_PARAMETER);
+ if (!event[i]->signaled)
+ efi_signal_event(event[i]);
}
/* Wait for signal */
for (i = 0; i < ARRAY_SIZE(efi_events); ++i) {
if (event != &efi_events[i])
continue;
- efi_signal_event(event);
+ if (event->signaled)
+ break;
+ event->signaled = 1;
+ if (event->type & EVT_NOTIFY_SIGNAL)
+ efi_signal_event(event);
break;
}
return EFI_EXIT(EFI_SUCCESS);
if (event == &efi_events[i]) {
event->type = 0;
event->trigger_next = -1ULL;
+ event->queued = 0;
event->signaled = 0;
return EFI_EXIT(EFI_SUCCESS);
}
continue;
if (!event->type || event->type & EVT_NOTIFY_SIGNAL)
break;
+ if (!event->signaled)
+ efi_signal_event(event);
if (event->signaled)
return EFI_EXIT(EFI_SUCCESS);
return EFI_EXIT(EFI_NOT_READY);
efi_guid_t *protocol, int protocol_interface_type,
void *protocol_interface)
{
- EFI_ENTRY("%p, %p, %d, %p", handle, protocol, protocol_interface_type,
+ EFI_ENTRY("%p, %pUl, %d, %p", handle, protocol, protocol_interface_type,
protocol_interface);
return EFI_EXIT(efi_install_protocol_interface(handle, protocol,
efi_guid_t *protocol, void *old_interface,
void *new_interface)
{
- EFI_ENTRY("%p, %p, %p, %p", handle, protocol, old_interface,
+ EFI_ENTRY("%p, %pUl, %p, %p", handle, protocol, old_interface,
new_interface);
return EFI_EXIT(EFI_ACCESS_DENIED);
}
static efi_status_t EFIAPI efi_uninstall_protocol_interface_ext(void *handle,
efi_guid_t *protocol, void *protocol_interface)
{
- EFI_ENTRY("%p, %p, %p", handle, protocol, protocol_interface);
+ EFI_ENTRY("%p, %pUl, %p", handle, protocol, protocol_interface);
return EFI_EXIT(efi_uninstall_protocol_interface(handle, protocol,
protocol_interface));
struct efi_event *event,
void **registration)
{
- EFI_ENTRY("%p, %p, %p", protocol, event, registration);
+ EFI_ENTRY("%pUl, %p, %p", protocol, event, registration);
return EFI_EXIT(EFI_OUT_OF_RESOURCES);
}
efi_guid_t *protocol, void *search_key,
unsigned long *buffer_size, efi_handle_t *buffer)
{
- EFI_ENTRY("%d, %p, %p, %p, %p", search_type, protocol, search_key,
+ EFI_ENTRY("%d, %pUl, %p, %p, %p", search_type, protocol, search_key,
buffer_size, buffer);
return EFI_EXIT(efi_locate_handle(search_type, protocol, search_key,
struct efi_device_path **device_path,
efi_handle_t *device)
{
- EFI_ENTRY("%p, %p, %p", protocol, device_path, device);
- return EFI_EXIT(EFI_NOT_FOUND);
+ struct efi_object *efiobj;
+
+ EFI_ENTRY("%pUl, %p, %p", protocol, device_path, device);
+
+ efiobj = efi_dp_find_obj(*device_path, device_path);
+ if (!efiobj)
+ return EFI_EXIT(EFI_NOT_FOUND);
+
+ *device = efiobj->handle;
+
+ return EFI_EXIT(EFI_SUCCESS);
}
/* Collapses configuration table entries, removing index i */
static efi_status_t EFIAPI efi_install_configuration_table_ext(efi_guid_t *guid,
void *table)
{
- EFI_ENTRY("%p, %p", guid, table);
+ EFI_ENTRY("%pUl, %p", guid, table);
return EFI_EXIT(efi_install_configuration_table(guid, table));
}
+/* Initialize a loaded_image_info + loaded_image_info object with correct
+ * protocols, boot-device, etc.
+ */
+void efi_setup_loaded_image(struct efi_loaded_image *info, struct efi_object *obj,
+ struct efi_device_path *device_path,
+ struct efi_device_path *file_path)
+{
+ obj->handle = info;
+
+ /*
+ * When asking for the device path interface, return
+ * bootefi_device_path
+ */
+ obj->protocols[0].guid = &efi_guid_device_path;
+ obj->protocols[0].protocol_interface = device_path;
+
+ /*
+ * When asking for the loaded_image interface, just
+ * return handle which points to loaded_image_info
+ */
+ obj->protocols[1].guid = &efi_guid_loaded_image;
+ obj->protocols[1].protocol_interface = info;
+
+ obj->protocols[2].guid = &efi_guid_console_control;
+ obj->protocols[2].protocol_interface = (void *)&efi_console_control;
+
+ obj->protocols[3].guid = &efi_guid_device_path_to_text_protocol;
+ obj->protocols[3].protocol_interface =
+ (void *)&efi_device_path_to_text;
+
+ info->file_path = file_path;
+ info->device_handle = efi_dp_find_obj(device_path, NULL);
+
+ list_add_tail(&obj->link, &efi_obj_list);
+}
+
+efi_status_t efi_load_image_from_path(struct efi_device_path *file_path,
+ void **buffer)
+{
+ struct efi_file_info *info = NULL;
+ struct efi_file_handle *f;
+ static efi_status_t ret;
+ uint64_t bs;
+
+ f = efi_file_from_path(file_path);
+ if (!f)
+ return EFI_DEVICE_ERROR;
+
+ bs = 0;
+ EFI_CALL(ret = f->getinfo(f, (efi_guid_t *)&efi_file_info_guid,
+ &bs, info));
+ if (ret == EFI_BUFFER_TOO_SMALL) {
+ info = malloc(bs);
+ EFI_CALL(ret = f->getinfo(f, (efi_guid_t *)&efi_file_info_guid,
+ &bs, info));
+ }
+ if (ret != EFI_SUCCESS)
+ goto error;
+
+ ret = efi_allocate_pool(EFI_LOADER_DATA, info->file_size, buffer);
+ if (ret)
+ goto error;
+
+ EFI_CALL(ret = f->read(f, &info->file_size, *buffer));
+
+error:
+ free(info);
+ EFI_CALL(f->close(f));
+
+ if (ret != EFI_SUCCESS) {
+ efi_free_pool(*buffer);
+ *buffer = NULL;
+ }
+
+ return ret;
+}
+
static efi_status_t EFIAPI efi_load_image(bool boot_policy,
efi_handle_t parent_image,
struct efi_device_path *file_path,
unsigned long source_size,
efi_handle_t *image_handle)
{
- static struct efi_object loaded_image_info_obj = {
- .protocols = {
- {
- .guid = &efi_guid_loaded_image,
- },
- },
- };
struct efi_loaded_image *info;
struct efi_object *obj;
EFI_ENTRY("%d, %p, %p, %p, %ld, %p", boot_policy, parent_image,
file_path, source_buffer, source_size, image_handle);
- info = malloc(sizeof(*info));
- loaded_image_info_obj.protocols[0].protocol_interface = info;
- obj = malloc(sizeof(loaded_image_info_obj));
- memset(info, 0, sizeof(*info));
- memcpy(obj, &loaded_image_info_obj, sizeof(loaded_image_info_obj));
- obj->handle = info;
- info->file_path = file_path;
+
+ info = calloc(1, sizeof(*info));
+ obj = calloc(1, sizeof(*obj));
+
+ if (!source_buffer) {
+ struct efi_device_path *dp, *fp;
+ efi_status_t ret;
+
+ ret = efi_load_image_from_path(file_path, &source_buffer);
+ if (ret != EFI_SUCCESS) {
+ free(info);
+ free(obj);
+ return EFI_EXIT(ret);
+ }
+
+ /*
+ * split file_path which contains both the device and
+ * file parts:
+ */
+ efi_dp_split_file_path(file_path, &dp, &fp);
+
+ efi_setup_loaded_image(info, obj, dp, fp);
+ } else {
+ /* In this case, file_path is the "device" path, ie.
+ * something like a HARDWARE_DEVICE:MEMORY_MAPPED
+ */
+ efi_setup_loaded_image(info, obj, file_path, NULL);
+ }
+
info->reserved = efi_load_pe(source_buffer, info);
if (!info->reserved) {
free(info);
}
*image_handle = info;
- list_add_tail(&obj->link, &efi_obj_list);
return EFI_EXIT(EFI_SUCCESS);
}
EFI_ENTRY("%p, %ld, %ld, %p", image_handle, exit_status,
exit_data_size, exit_data);
+ /* Make sure entry/exit counts for EFI world cross-overs match */
+ __efi_exit_check();
+
+ /*
+ * But longjmp out with the U-Boot gd, not the application's, as
+ * the other end is a setjmp call inside EFI context.
+ */
+ efi_restore_gd();
+
loaded_image_info->exit_status = exit_status;
longjmp(&loaded_image_info->exit_jmp, 1);
static efi_status_t EFIAPI efi_exit_boot_services(void *image_handle,
unsigned long map_key)
{
+ int i;
+
EFI_ENTRY("%p, %ld", image_handle, map_key);
+ /* Notify that ExitBootServices is invoked. */
+ for (i = 0; i < ARRAY_SIZE(efi_events); ++i) {
+ if (efi_events[i].type != EVT_SIGNAL_EXIT_BOOT_SERVICES)
+ continue;
+ efi_signal_event(&efi_events[i]);
+ }
+ /* Make sure that notification functions are not called anymore */
+ efi_tpl = TPL_HIGH_LEVEL;
+
+#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
+ /* save any EFI variables that have been written: */
+ env_save();
+#endif
+
board_quiesce_devices();
/* Fix up caches for EFI payloads if necessary */
void *agent_handle,
void *controller_handle)
{
- EFI_ENTRY("%p, %p, %p, %p", handle, protocol, agent_handle,
+ EFI_ENTRY("%p, %pUl, %p, %p", handle, protocol, agent_handle,
controller_handle);
return EFI_EXIT(EFI_NOT_FOUND);
}
struct efi_open_protocol_info_entry **entry_buffer,
unsigned long *entry_count)
{
- EFI_ENTRY("%p, %p, %p, %p", handle, protocol, entry_buffer,
+ EFI_ENTRY("%p, %pUl, %p, %p", handle, protocol, entry_buffer,
entry_count);
return EFI_EXIT(EFI_NOT_FOUND);
}
efi_status_t r;
unsigned long buffer_size = 0;
- EFI_ENTRY("%d, %p, %p, %p, %p", search_type, protocol, search_key,
+ EFI_ENTRY("%d, %pUl, %p, %p, %p", search_type, protocol, search_key,
no_handles, buffer);
if (!no_handles || !buffer) {
struct list_head *lhandle;
int i;
- EFI_ENTRY("%p, %p, %p", protocol, registration, protocol_interface);
+ EFI_ENTRY("%pUl, %p, %p", protocol, registration, protocol_interface);
if (!protocol || !protocol_interface)
return EFI_EXIT(EFI_INVALID_PARAMETER);
+ EFI_PRINT_GUID("protocol", protocol);
+
list_for_each(lhandle, &efi_obj_list) {
struct efi_object *efiobj;
int i;
efi_status_t r = EFI_INVALID_PARAMETER;
- EFI_ENTRY("%p, %p, %p, %p, %p, 0x%x", handle, protocol,
+ EFI_ENTRY("%p, %pUl, %p, %p, %p, 0x%x", handle, protocol,
protocol_interface, agent_handle, controller_handle,
attributes);
goto out;
}
+ EFI_PRINT_GUID("protocol", protocol);
+
switch (attributes) {
case EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL:
case EFI_OPEN_PROTOCOL_GET_PROTOCOL:
#include <common.h>
#include <charset.h>
+#include <dm/device.h>
#include <efi_loader.h>
+#include <stdio_dev.h>
+#include <video_console.h>
static bool console_size_queried;
return EFI_EXIT(EFI_UNSUPPORTED);
}
-static void print_unicode_in_utf8(u16 c)
-{
- char utf8[MAX_UTF8_PER_UTF16] = { 0 };
- utf16_to_utf8((u8 *)utf8, &c, 1);
- puts(utf8);
-}
-
static efi_status_t EFIAPI efi_cout_output_string(
struct efi_simple_text_output_protocol *this,
- const unsigned short *string)
+ const efi_string_t string)
{
- struct cout_mode *mode;
- u16 ch;
+ struct simple_text_output_mode *con = &efi_con_mode;
+ struct cout_mode *mode = &efi_cout_modes[con->mode];
- mode = &efi_cout_modes[efi_con_mode.mode];
EFI_ENTRY("%p, %p", this, string);
- for (;(ch = *string); string++) {
- print_unicode_in_utf8(ch);
- efi_con_mode.cursor_column++;
- if (ch == '\n') {
- efi_con_mode.cursor_column = 1;
- efi_con_mode.cursor_row++;
- } else if (efi_con_mode.cursor_column > mode->columns) {
- efi_con_mode.cursor_column = 1;
- efi_con_mode.cursor_row++;
+
+ unsigned int n16 = utf16_strlen(string);
+ char buf[MAX_UTF8_PER_UTF16 * n16 + 1];
+ char *p;
+
+ *utf16_to_utf8((u8 *)buf, string, n16) = '\0';
+
+ fputs(stdout, buf);
+
+ for (p = buf; *p; p++) {
+ switch (*p) {
+ case '\r': /* carriage-return */
+ con->cursor_column = 0;
+ break;
+ case '\n': /* newline */
+ con->cursor_column = 0;
+ con->cursor_row++;
+ break;
+ case '\t': /* tab, assume 8 char align */
+ break;
+ case '\b': /* backspace */
+ con->cursor_column = max(0, con->cursor_column - 1);
+ break;
+ default:
+ con->cursor_column++;
+ break;
}
- if (efi_con_mode.cursor_row > mode->rows)
- efi_con_mode.cursor_row = mode->rows;
+ if (con->cursor_column >= mode->columns) {
+ con->cursor_column = 0;
+ con->cursor_row++;
+ }
+ con->cursor_row = min(con->cursor_row, (s32)mode->rows - 1);
}
return EFI_EXIT(EFI_SUCCESS);
static efi_status_t EFIAPI efi_cout_test_string(
struct efi_simple_text_output_protocol *this,
- const unsigned short *string)
+ const efi_string_t string)
{
EFI_ENTRY("%p, %p", this, string);
return EFI_EXIT(EFI_SUCCESS);
return (mode->rows == rows) && (mode->columns == cols);
}
+static int query_console_serial(int *rows, int *cols)
+{
+ /* Ask the terminal about its size */
+ int n[3];
+ u64 timeout;
+
+ /* Empty input buffer */
+ while (tstc())
+ getc();
+
+ printf(ESC"[18t");
+
+ /* Check if we have a terminal that understands */
+ timeout = timer_get_us() + 1000000;
+ while (!tstc())
+ if (timer_get_us() > timeout)
+ return -1;
+
+ /* Read {depth,rows,cols} */
+ if (term_read_reply(n, 3, 't'))
+ return -1;
+
+ *cols = n[2];
+ *rows = n[1];
+
+ return 0;
+}
+
static efi_status_t EFIAPI efi_cout_query_mode(
struct efi_simple_text_output_protocol *this,
unsigned long mode_number, unsigned long *columns,
EFI_ENTRY("%p, %ld, %p, %p", this, mode_number, columns, rows);
if (!console_size_queried) {
- /* Ask the terminal about its size */
- int n[3];
- int cols;
- int rows;
- u64 timeout;
+ const char *stdout_name = env_get("stdout");
+ int rows, cols;
console_size_queried = true;
- /* Empty input buffer */
- while (tstc())
- getc();
-
- printf(ESC"[18t");
-
- /* Check if we have a terminal that understands */
- timeout = timer_get_us() + 1000000;
- while (!tstc())
- if (timer_get_us() > timeout)
- goto out;
-
- /* Read {depth,rows,cols} */
- if (term_read_reply(n, 3, 't')) {
+ if (stdout_name && !strcmp(stdout_name, "vidconsole") &&
+ IS_ENABLED(CONFIG_DM_VIDEO)) {
+ struct stdio_dev *stdout_dev =
+ stdio_get_by_name("vidconsole");
+ struct udevice *dev = stdout_dev->priv;
+ struct vidconsole_priv *priv =
+ dev_get_uclass_priv(dev);
+ rows = priv->rows;
+ cols = priv->cols;
+ } else if (query_console_serial(&rows, &cols)) {
goto out;
}
- cols = n[2];
- rows = n[1];
-
/* Test if we can have Mode 1 */
if (cols >= 80 && rows >= 50) {
efi_cout_modes[1].present = 1;
void *context)
{
EFI_ENTRY("%p, %p", event, context);
- if (tstc())
+ if (tstc()) {
+ efi_con_in.wait_for_key->signaled = 1;
efi_signal_event(efi_con_in.wait_for_key);
+ }
EFI_EXIT(EFI_SUCCESS);
}
--- /dev/null
+/*
+ * EFI device path from u-boot device-model mapping
+ *
+ * (C) Copyright 2017 Rob Clark
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <blk.h>
+#include <dm.h>
+#include <usb.h>
+#include <mmc.h>
+#include <efi_loader.h>
+#include <inttypes.h>
+#include <part.h>
+
+/* template END node: */
+static const struct efi_device_path END = {
+ .type = DEVICE_PATH_TYPE_END,
+ .sub_type = DEVICE_PATH_SUB_TYPE_END,
+ .length = sizeof(END),
+};
+
+#define U_BOOT_GUID \
+ EFI_GUID(0xe61d73b9, 0xa384, 0x4acc, \
+ 0xae, 0xab, 0x82, 0xe8, 0x28, 0xf3, 0x62, 0x8b)
+
+/* template ROOT node: */
+static const struct efi_device_path_vendor ROOT = {
+ .dp = {
+ .type = DEVICE_PATH_TYPE_HARDWARE_DEVICE,
+ .sub_type = DEVICE_PATH_SUB_TYPE_VENDOR,
+ .length = sizeof(ROOT),
+ },
+ .guid = U_BOOT_GUID,
+};
+
+static void *dp_alloc(size_t sz)
+{
+ void *buf;
+
+ if (efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES, sz, &buf) != EFI_SUCCESS)
+ return NULL;
+
+ return buf;
+}
+
+/*
+ * Iterate to next block in device-path, terminating (returning NULL)
+ * at /End* node.
+ */
+struct efi_device_path *efi_dp_next(const struct efi_device_path *dp)
+{
+ if (dp == NULL)
+ return NULL;
+ if (dp->type == DEVICE_PATH_TYPE_END)
+ return NULL;
+ dp = ((void *)dp) + dp->length;
+ if (dp->type == DEVICE_PATH_TYPE_END)
+ return NULL;
+ return (struct efi_device_path *)dp;
+}
+
+/*
+ * Compare two device-paths, stopping when the shorter of the two hits
+ * an End* node. This is useful to, for example, compare a device-path
+ * representing a device with one representing a file on the device, or
+ * a device with a parent device.
+ */
+int efi_dp_match(struct efi_device_path *a, struct efi_device_path *b)
+{
+ while (1) {
+ int ret;
+
+ ret = memcmp(&a->length, &b->length, sizeof(a->length));
+ if (ret)
+ return ret;
+
+ ret = memcmp(a, b, a->length);
+ if (ret)
+ return ret;
+
+ a = efi_dp_next(a);
+ b = efi_dp_next(b);
+
+ if (!a || !b)
+ return 0;
+ }
+}
+
+
+/*
+ * See UEFI spec (section 3.1.2, about short-form device-paths..
+ * tl;dr: we can have a device-path that starts with a USB WWID
+ * or USB Class node, and a few other cases which don't encode
+ * the full device path with bus hierarchy:
+ *
+ * - MESSAGING:USB_WWID
+ * - MESSAGING:USB_CLASS
+ * - MEDIA:FILE_PATH
+ * - MEDIA:HARD_DRIVE
+ * - MESSAGING:URI
+ */
+static struct efi_device_path *shorten_path(struct efi_device_path *dp)
+{
+ while (dp) {
+ /*
+ * TODO: Add MESSAGING:USB_WWID and MESSAGING:URI..
+ * in practice fallback.efi just uses MEDIA:HARD_DRIVE
+ * so not sure when we would see these other cases.
+ */
+ if (EFI_DP_TYPE(dp, MESSAGING_DEVICE, MSG_USB_CLASS) ||
+ EFI_DP_TYPE(dp, MEDIA_DEVICE, HARD_DRIVE_PATH) ||
+ EFI_DP_TYPE(dp, MEDIA_DEVICE, FILE_PATH))
+ return dp;
+
+ dp = efi_dp_next(dp);
+ }
+
+ return dp;
+}
+
+static struct efi_object *find_obj(struct efi_device_path *dp, bool short_path,
+ struct efi_device_path **rem)
+{
+ struct efi_object *efiobj;
+
+ list_for_each_entry(efiobj, &efi_obj_list, link) {
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(efiobj->protocols); i++) {
+ struct efi_handler *handler = &efiobj->protocols[i];
+ struct efi_device_path *obj_dp;
+
+ if (!handler->guid)
+ break;
+
+ if (guidcmp(handler->guid, &efi_guid_device_path))
+ continue;
+
+ obj_dp = handler->protocol_interface;
+
+ do {
+ if (efi_dp_match(dp, obj_dp) == 0) {
+ if (rem) {
+ *rem = ((void *)dp) +
+ efi_dp_size(obj_dp);
+ }
+ return efiobj;
+ }
+
+ obj_dp = shorten_path(efi_dp_next(obj_dp));
+ } while (short_path && obj_dp);
+ }
+ }
+
+ return NULL;
+}
+
+
+/*
+ * Find an efiobj from device-path, if 'rem' is not NULL, returns the
+ * remaining part of the device path after the matched object.
+ */
+struct efi_object *efi_dp_find_obj(struct efi_device_path *dp,
+ struct efi_device_path **rem)
+{
+ struct efi_object *efiobj;
+
+ efiobj = find_obj(dp, false, rem);
+
+ if (!efiobj)
+ efiobj = find_obj(dp, true, rem);
+
+ return efiobj;
+}
+
+/* return size not including End node: */
+unsigned efi_dp_size(const struct efi_device_path *dp)
+{
+ unsigned sz = 0;
+
+ while (dp) {
+ sz += dp->length;
+ dp = efi_dp_next(dp);
+ }
+
+ return sz;
+}
+
+struct efi_device_path *efi_dp_dup(const struct efi_device_path *dp)
+{
+ struct efi_device_path *ndp;
+ unsigned sz = efi_dp_size(dp) + sizeof(END);
+
+ if (!dp)
+ return NULL;
+
+ ndp = dp_alloc(sz);
+ memcpy(ndp, dp, sz);
+
+ return ndp;
+}
+
+struct efi_device_path *efi_dp_append(const struct efi_device_path *dp1,
+ const struct efi_device_path *dp2)
+{
+ struct efi_device_path *ret;
+
+ if (!dp1) {
+ ret = efi_dp_dup(dp2);
+ } else if (!dp2) {
+ ret = efi_dp_dup(dp1);
+ } else {
+ /* both dp1 and dp2 are non-null */
+ unsigned sz1 = efi_dp_size(dp1);
+ unsigned sz2 = efi_dp_size(dp2);
+ void *p = dp_alloc(sz1 + sz2 + sizeof(END));
+ memcpy(p, dp1, sz1);
+ memcpy(p + sz1, dp2, sz2);
+ memcpy(p + sz1 + sz2, &END, sizeof(END));
+ ret = p;
+ }
+
+ return ret;
+}
+
+struct efi_device_path *efi_dp_append_node(const struct efi_device_path *dp,
+ const struct efi_device_path *node)
+{
+ struct efi_device_path *ret;
+
+ if (!node && !dp) {
+ ret = efi_dp_dup(&END);
+ } else if (!node) {
+ ret = efi_dp_dup(dp);
+ } else if (!dp) {
+ unsigned sz = node->length;
+ void *p = dp_alloc(sz + sizeof(END));
+ memcpy(p, node, sz);
+ memcpy(p + sz, &END, sizeof(END));
+ ret = p;
+ } else {
+ /* both dp and node are non-null */
+ unsigned sz = efi_dp_size(dp);
+ void *p = dp_alloc(sz + node->length + sizeof(END));
+ memcpy(p, dp, sz);
+ memcpy(p + sz, node, node->length);
+ memcpy(p + sz + node->length, &END, sizeof(END));
+ ret = p;
+ }
+
+ return ret;
+}
+
+#ifdef CONFIG_DM
+/* size of device-path not including END node for device and all parents
+ * up to the root device.
+ */
+static unsigned dp_size(struct udevice *dev)
+{
+ if (!dev || !dev->driver)
+ return sizeof(ROOT);
+
+ switch (dev->driver->id) {
+ case UCLASS_ROOT:
+ case UCLASS_SIMPLE_BUS:
+ /* stop traversing parents at this point: */
+ return sizeof(ROOT);
+ case UCLASS_MMC:
+ return dp_size(dev->parent) +
+ sizeof(struct efi_device_path_sd_mmc_path);
+ case UCLASS_MASS_STORAGE:
+ case UCLASS_USB_HUB:
+ return dp_size(dev->parent) +
+ sizeof(struct efi_device_path_usb_class);
+ default:
+ /* just skip over unknown classes: */
+ return dp_size(dev->parent);
+ }
+}
+
+static void *dp_fill(void *buf, struct udevice *dev)
+{
+ if (!dev || !dev->driver)
+ return buf;
+
+ switch (dev->driver->id) {
+ case UCLASS_ROOT:
+ case UCLASS_SIMPLE_BUS: {
+ /* stop traversing parents at this point: */
+ struct efi_device_path_vendor *vdp = buf;
+ *vdp = ROOT;
+ return &vdp[1];
+ }
+#if defined(CONFIG_DM_MMC) && defined(CONFIG_MMC)
+ case UCLASS_MMC: {
+ struct efi_device_path_sd_mmc_path *sddp =
+ dp_fill(buf, dev->parent);
+ struct mmc *mmc = mmc_get_mmc_dev(dev);
+ struct blk_desc *desc = mmc_get_blk_desc(mmc);
+
+ sddp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE;
+ sddp->dp.sub_type = (desc->if_type == IF_TYPE_MMC) ?
+ DEVICE_PATH_SUB_TYPE_MSG_MMC :
+ DEVICE_PATH_SUB_TYPE_MSG_SD;
+ sddp->dp.length = sizeof(*sddp);
+ sddp->slot_number = dev->seq;
+
+ return &sddp[1];
+ }
+#endif
+ case UCLASS_MASS_STORAGE:
+ case UCLASS_USB_HUB: {
+ struct efi_device_path_usb_class *udp =
+ dp_fill(buf, dev->parent);
+ struct usb_device *udev = dev_get_parent_priv(dev);
+ struct usb_device_descriptor *desc = &udev->descriptor;
+
+ udp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE;
+ udp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_USB_CLASS;
+ udp->dp.length = sizeof(*udp);
+ udp->vendor_id = desc->idVendor;
+ udp->product_id = desc->idProduct;
+ udp->device_class = desc->bDeviceClass;
+ udp->device_subclass = desc->bDeviceSubClass;
+ udp->device_protocol = desc->bDeviceProtocol;
+
+ return &udp[1];
+ }
+ default:
+ debug("unhandled device class: %s (%u)\n",
+ dev->name, dev->driver->id);
+ return dp_fill(buf, dev->parent);
+ }
+}
+
+/* Construct a device-path from a device: */
+struct efi_device_path *efi_dp_from_dev(struct udevice *dev)
+{
+ void *buf, *start;
+
+ start = buf = dp_alloc(dp_size(dev) + sizeof(END));
+ buf = dp_fill(buf, dev);
+ *((struct efi_device_path *)buf) = END;
+
+ return start;
+}
+#endif
+
+static unsigned dp_part_size(struct blk_desc *desc, int part)
+{
+ unsigned dpsize;
+
+#ifdef CONFIG_BLK
+ dpsize = dp_size(desc->bdev->parent);
+#else
+ dpsize = sizeof(ROOT) + sizeof(struct efi_device_path_usb);
+#endif
+
+ if (part == 0) /* the actual disk, not a partition */
+ return dpsize;
+
+ if (desc->part_type == PART_TYPE_ISO)
+ dpsize += sizeof(struct efi_device_path_cdrom_path);
+ else
+ dpsize += sizeof(struct efi_device_path_hard_drive_path);
+
+ return dpsize;
+}
+
+static void *dp_part_fill(void *buf, struct blk_desc *desc, int part)
+{
+ disk_partition_t info;
+
+#ifdef CONFIG_BLK
+ buf = dp_fill(buf, desc->bdev->parent);
+#else
+ /*
+ * We *could* make a more accurate path, by looking at if_type
+ * and handling all the different cases like we do for non-
+ * legacy (ie CONFIG_BLK=y) case. But most important thing
+ * is just to have a unique device-path for if_type+devnum.
+ * So map things to a fictional USB device:
+ */
+ struct efi_device_path_usb *udp;
+
+ memcpy(buf, &ROOT, sizeof(ROOT));
+ buf += sizeof(ROOT);
+
+ udp = buf;
+ udp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE;
+ udp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_USB;
+ udp->dp.length = sizeof(*udp);
+ udp->parent_port_number = desc->if_type;
+ udp->usb_interface = desc->devnum;
+ buf = &udp[1];
+#endif
+
+ if (part == 0) /* the actual disk, not a partition */
+ return buf;
+
+ part_get_info(desc, part, &info);
+
+ if (desc->part_type == PART_TYPE_ISO) {
+ struct efi_device_path_cdrom_path *cddp = buf;
+
+ cddp->boot_entry = part - 1;
+ cddp->dp.type = DEVICE_PATH_TYPE_MEDIA_DEVICE;
+ cddp->dp.sub_type = DEVICE_PATH_SUB_TYPE_CDROM_PATH;
+ cddp->dp.length = sizeof(*cddp);
+ cddp->partition_start = info.start;
+ cddp->partition_end = info.size;
+
+ buf = &cddp[1];
+ } else {
+ struct efi_device_path_hard_drive_path *hddp = buf;
+
+ hddp->dp.type = DEVICE_PATH_TYPE_MEDIA_DEVICE;
+ hddp->dp.sub_type = DEVICE_PATH_SUB_TYPE_HARD_DRIVE_PATH;
+ hddp->dp.length = sizeof(*hddp);
+ hddp->partition_number = part - 1;
+ hddp->partition_start = info.start;
+ hddp->partition_end = info.size;
+ if (desc->part_type == PART_TYPE_EFI)
+ hddp->partmap_type = 2;
+ else
+ hddp->partmap_type = 1;
+ hddp->signature_type = desc->sig_type;
+ if (hddp->signature_type != 0)
+ memcpy(hddp->partition_signature, &desc->guid_sig,
+ sizeof(hddp->partition_signature));
+
+ buf = &hddp[1];
+ }
+
+ return buf;
+}
+
+
+/* Construct a device-path from a partition on a blk device: */
+struct efi_device_path *efi_dp_from_part(struct blk_desc *desc, int part)
+{
+ void *buf, *start;
+
+ start = buf = dp_alloc(dp_part_size(desc, part) + sizeof(END));
+
+ buf = dp_part_fill(buf, desc, part);
+
+ *((struct efi_device_path *)buf) = END;
+
+ return start;
+}
+
+/* convert path to an UEFI style path (ie. DOS style backslashes and utf16) */
+static void path_to_uefi(u16 *uefi, const char *path)
+{
+ while (*path) {
+ char c = *(path++);
+ if (c == '/')
+ c = '\\';
+ *(uefi++) = c;
+ }
+ *uefi = '\0';
+}
+
+/*
+ * If desc is NULL, this creates a path with only the file component,
+ * otherwise it creates a full path with both device and file components
+ */
+struct efi_device_path *efi_dp_from_file(struct blk_desc *desc, int part,
+ const char *path)
+{
+ struct efi_device_path_file_path *fp;
+ void *buf, *start;
+ unsigned dpsize = 0, fpsize;
+
+ if (desc)
+ dpsize = dp_part_size(desc, part);
+
+ fpsize = sizeof(struct efi_device_path) + 2 * (strlen(path) + 1);
+ dpsize += fpsize;
+
+ start = buf = dp_alloc(dpsize + sizeof(END));
+
+ if (desc)
+ buf = dp_part_fill(buf, desc, part);
+
+ /* add file-path: */
+ fp = buf;
+ fp->dp.type = DEVICE_PATH_TYPE_MEDIA_DEVICE;
+ fp->dp.sub_type = DEVICE_PATH_SUB_TYPE_FILE_PATH;
+ fp->dp.length = fpsize;
+ path_to_uefi(fp->str, path);
+ buf += fpsize;
+
+ *((struct efi_device_path *)buf) = END;
+
+ return start;
+}
+
+#ifdef CONFIG_NET
+struct efi_device_path *efi_dp_from_eth(void)
+{
+ struct efi_device_path_mac_addr *ndp;
+ void *buf, *start;
+ unsigned dpsize = 0;
+
+ assert(eth_get_dev());
+
+#ifdef CONFIG_DM_ETH
+ dpsize += dp_size(eth_get_dev());
+#else
+ dpsize += sizeof(ROOT);
+#endif
+ dpsize += sizeof(*ndp);
+
+ start = buf = dp_alloc(dpsize + sizeof(END));
+
+#ifdef CONFIG_DM_ETH
+ buf = dp_fill(buf, eth_get_dev());
+#else
+ memcpy(buf, &ROOT, sizeof(ROOT));
+ buf += sizeof(ROOT);
+#endif
+
+ ndp = buf;
+ ndp->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE;
+ ndp->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR;
+ ndp->dp.length = sizeof(*ndp);
+ memcpy(ndp->mac.addr, eth_get_ethaddr(), ARP_HLEN);
+ buf = &ndp[1];
+
+ *((struct efi_device_path *)buf) = END;
+
+ return start;
+}
+#endif
+
+/*
+ * Helper to split a full device path (containing both device and file
+ * parts) into it's constituent parts.
+ */
+void efi_dp_split_file_path(struct efi_device_path *full_path,
+ struct efi_device_path **device_path,
+ struct efi_device_path **file_path)
+{
+ struct efi_device_path *p, *dp, *fp;
+
+ dp = efi_dp_dup(full_path);
+ p = dp;
+ while (!EFI_DP_TYPE(p, MEDIA_DEVICE, FILE_PATH))
+ p = efi_dp_next(p);
+ fp = efi_dp_dup(p);
+
+ p->type = DEVICE_PATH_TYPE_END;
+ p->sub_type = DEVICE_PATH_SUB_TYPE_END;
+ p->length = sizeof(*p);
+
+ *device_path = dp;
+ *file_path = fp;
+}
const efi_guid_t efi_guid_device_path_to_text_protocol =
EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID;
-static uint16_t *efi_convert_device_node_to_text(
- struct efi_device_path_protocol *device_node,
- bool display_only,
- bool allow_shortcuts)
+static char *dp_unknown(char *s, struct efi_device_path *dp)
{
- unsigned long buffer_size;
- efi_status_t r;
- uint16_t *buffer = NULL;
- int i;
+ s += sprintf(s, "/UNKNOWN(%04x,%04x)", dp->type, dp->sub_type);
+ return s;
+}
- switch (device_node->type) {
- case DEVICE_PATH_TYPE_END:
- return NULL;
- case DEVICE_PATH_TYPE_MESSAGING_DEVICE:
- switch (device_node->sub_type) {
- case DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR: {
- struct efi_device_path_mac_addr *dp =
- (struct efi_device_path_mac_addr *)device_node;
-
- if (dp->if_type != 0 && dp->if_type != 1)
- break;
- r = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES,
- 2 * MAC_OUTPUT_LEN,
- (void **)&buffer);
- if (r != EFI_SUCCESS)
- return NULL;
- sprintf((char *)buffer,
- "MAC(%02x%02x%02x%02x%02x%02x,0x%1x)",
- dp->mac.addr[0], dp->mac.addr[1],
- dp->mac.addr[2], dp->mac.addr[3],
- dp->mac.addr[4], dp->mac.addr[5],
- dp->if_type);
- for (i = MAC_OUTPUT_LEN - 1; i >= 0; --i)
- buffer[i] = ((uint8_t *)buffer)[i];
+static char *dp_hardware(char *s, struct efi_device_path *dp)
+{
+ switch (dp->sub_type) {
+ case DEVICE_PATH_SUB_TYPE_VENDOR: {
+ struct efi_device_path_vendor *vdp =
+ (struct efi_device_path_vendor *)dp;
+ s += sprintf(s, "/VenHw(%pUl)", &vdp->guid);
+ break;
+ }
+ default:
+ s = dp_unknown(s, dp);
+ break;
+ }
+ return s;
+}
+
+static char *dp_acpi(char *s, struct efi_device_path *dp)
+{
+ switch (dp->sub_type) {
+ case DEVICE_PATH_SUB_TYPE_ACPI_DEVICE: {
+ struct efi_device_path_acpi_path *adp =
+ (struct efi_device_path_acpi_path *)dp;
+ s += sprintf(s, "/Acpi(PNP%04x", EISA_PNP_NUM(adp->hid));
+ if (adp->uid)
+ s += sprintf(s, ",%d", adp->uid);
+ s += sprintf(s, ")");
+ break;
+ }
+ default:
+ s = dp_unknown(s, dp);
+ break;
+ }
+ return s;
+}
+
+static char *dp_msging(char *s, struct efi_device_path *dp)
+{
+ switch (dp->sub_type) {
+ case DEVICE_PATH_SUB_TYPE_MSG_USB: {
+ struct efi_device_path_usb *udp =
+ (struct efi_device_path_usb *)dp;
+ s += sprintf(s, "/Usb(0x%x,0x%x)", udp->parent_port_number,
+ udp->usb_interface);
+ break;
+ }
+ case DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR: {
+ struct efi_device_path_mac_addr *mdp =
+ (struct efi_device_path_mac_addr *)dp;
+
+ if (mdp->if_type != 0 && mdp->if_type != 1)
break;
- }
- }
+
+ s += sprintf(s, "/MAC(%02x%02x%02x%02x%02x%02x,0x%1x)",
+ mdp->mac.addr[0], mdp->mac.addr[1],
+ mdp->mac.addr[2], mdp->mac.addr[3],
+ mdp->mac.addr[4], mdp->mac.addr[5],
+ mdp->if_type);
+
+ break;
+ }
+ case DEVICE_PATH_SUB_TYPE_MSG_USB_CLASS: {
+ struct efi_device_path_usb_class *ucdp =
+ (struct efi_device_path_usb_class *)dp;
+
+ s += sprintf(s, "/USBClass(%x,%x,%x,%x,%x)",
+ ucdp->vendor_id, ucdp->product_id,
+ ucdp->device_class, ucdp->device_subclass,
+ ucdp->device_protocol);
+
+ break;
+ }
+ case DEVICE_PATH_SUB_TYPE_MSG_SD:
+ case DEVICE_PATH_SUB_TYPE_MSG_MMC: {
+ const char *typename =
+ (dp->sub_type == DEVICE_PATH_SUB_TYPE_MSG_SD) ?
+ "SDCard" : "MMC";
+ struct efi_device_path_sd_mmc_path *sddp =
+ (struct efi_device_path_sd_mmc_path *)dp;
+ s += sprintf(s, "/%s(Slot%u)", typename, sddp->slot_number);
+ break;
+ }
+ default:
+ s = dp_unknown(s, dp);
break;
- case DEVICE_PATH_TYPE_MEDIA_DEVICE:
- switch (device_node->sub_type) {
- case DEVICE_PATH_SUB_TYPE_FILE_PATH:
- buffer_size = device_node->length - 4;
- r = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES,
- buffer_size, (void **) &buffer);
- if (r != EFI_SUCCESS)
- return NULL;
- memcpy(buffer, device_node->data, buffer_size);
+ }
+ return s;
+}
+
+static char *dp_media(char *s, struct efi_device_path *dp)
+{
+ switch (dp->sub_type) {
+ case DEVICE_PATH_SUB_TYPE_HARD_DRIVE_PATH: {
+ struct efi_device_path_hard_drive_path *hddp =
+ (struct efi_device_path_hard_drive_path *)dp;
+ void *sig = hddp->partition_signature;
+
+ switch (hddp->signature_type) {
+ case SIG_TYPE_MBR:
+ s += sprintf(s, "/HD(Part%d,Sig%08x)",
+ hddp->partition_number,
+ *(uint32_t *)sig);
break;
+ case SIG_TYPE_GUID:
+ s += sprintf(s, "/HD(Part%d,Sig%pUl)",
+ hddp->partition_number, sig);
+ default:
+ s += sprintf(s, "/HD(Part%d,MBRType=%02x,SigType=%02x)",
+ hddp->partition_number, hddp->partmap_type,
+ hddp->signature_type);
}
+
+ break;
+ }
+ case DEVICE_PATH_SUB_TYPE_CDROM_PATH: {
+ struct efi_device_path_cdrom_path *cddp =
+ (struct efi_device_path_cdrom_path *)dp;
+ s += sprintf(s, "/CDROM(0x%x)", cddp->boot_entry);
+ break;
+ }
+ case DEVICE_PATH_SUB_TYPE_FILE_PATH: {
+ struct efi_device_path_file_path *fp =
+ (struct efi_device_path_file_path *)dp;
+ int slen = (dp->length - sizeof(*dp)) / 2;
+ s += sprintf(s, "/%-*ls", slen, fp->str);
break;
}
+ default:
+ s = dp_unknown(s, dp);
+ break;
+ }
+ return s;
+}
- /*
- * For all node types that we do not yet support return
- * 'UNKNOWN(type,subtype)'.
- */
- if (!buffer) {
- r = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES,
- 2 * UNKNOWN_OUTPUT_LEN,
- (void **)&buffer);
- if (r != EFI_SUCCESS)
- return NULL;
- sprintf((char *)buffer,
- "UNKNOWN(%04x,%04x)",
- device_node->type,
- device_node->sub_type);
- for (i = UNKNOWN_OUTPUT_LEN - 1; i >= 0; --i)
- buffer[i] = ((uint8_t *)buffer)[i];
+static uint16_t *efi_convert_device_node_to_text(
+ struct efi_device_path *dp,
+ bool display_only,
+ bool allow_shortcuts)
+{
+ unsigned long len;
+ efi_status_t r;
+ char buf[512]; /* this ought be be big enough for worst case */
+ char *str = buf;
+ uint16_t *out;
+
+ while (dp) {
+ switch (dp->type) {
+ case DEVICE_PATH_TYPE_HARDWARE_DEVICE:
+ str = dp_hardware(str, dp);
+ break;
+ case DEVICE_PATH_TYPE_ACPI_DEVICE:
+ str = dp_acpi(str, dp);
+ break;
+ case DEVICE_PATH_TYPE_MESSAGING_DEVICE:
+ str = dp_msging(str, dp);
+ break;
+ case DEVICE_PATH_TYPE_MEDIA_DEVICE:
+ str = dp_media(str, dp);
+ break;
+ default:
+ str = dp_unknown(str, dp);
+ }
+
+ dp = efi_dp_next(dp);
}
- return buffer;
+ *str++ = '\0';
+
+ len = str - buf;
+ r = efi_allocate_pool(EFI_ALLOCATE_ANY_PAGES, 2 * len, (void **)&out);
+ if (r != EFI_SUCCESS)
+ return NULL;
+
+ ascii2unicode(out, buf);
+ out[len - 1] = 0;
+
+ return out;
}
+/* helper for debug prints.. efi_free_pool() the result. */
+uint16_t *efi_dp_str(struct efi_device_path *dp)
+{
+ return efi_convert_device_node_to_text(dp, true, true);
+}
+
+
static uint16_t EFIAPI *efi_convert_device_node_to_text_ext(
- struct efi_device_path_protocol *device_node,
+ struct efi_device_path *device_node,
bool display_only,
bool allow_shortcuts)
{
}
static uint16_t EFIAPI *efi_convert_device_path_to_text(
- struct efi_device_path_protocol *device_path,
+ struct efi_device_path *device_path,
bool display_only,
bool allow_shortcuts)
{
/* EFI Interface Media descriptor struct, referenced by ops */
struct efi_block_io_media media;
/* EFI device path to this block device */
- struct efi_device_path_file_path *dp;
+ struct efi_device_path *dp;
+ /* partition # */
+ unsigned int part;
+ /* handle to filesys proto (for partition objects) */
+ struct efi_simple_file_system_protocol *volume;
/* Offset into disk for simple partitions */
lbaint_t offset;
/* Internal block device */
- const struct blk_desc *desc;
+ struct blk_desc *desc;
};
static efi_status_t EFIAPI efi_disk_reset(struct efi_block_io *this,
EFI_DISK_WRITE,
};
-static efi_status_t EFIAPI efi_disk_rw_blocks(struct efi_block_io *this,
+static efi_status_t efi_disk_rw_blocks(struct efi_block_io *this,
u32 media_id, u64 lba, unsigned long buffer_size,
void *buffer, enum efi_disk_direction direction)
{
.flush_blocks = &efi_disk_flush_blocks,
};
+/*
+ * Find filesystem from a device-path. The passed in path 'p' probably
+ * contains one or more /File(name) nodes, so the comparison stops at
+ * the first /File() node, and returns the pointer to that via 'rp'.
+ * This is mostly intended to be a helper to map a device-path to an
+ * efi_file_handle object.
+ */
+struct efi_simple_file_system_protocol *
+efi_fs_from_path(struct efi_device_path *fp)
+{
+ struct efi_object *efiobj;
+ struct efi_disk_obj *diskobj;
+
+ efiobj = efi_dp_find_obj(fp, NULL);
+ if (!efiobj)
+ return NULL;
+
+ diskobj = container_of(efiobj, struct efi_disk_obj, parent);
+
+ return diskobj->volume;
+}
+
static void efi_disk_add_dev(const char *name,
const char *if_typename,
- const struct blk_desc *desc,
+ struct blk_desc *desc,
int dev_index,
- lbaint_t offset)
+ lbaint_t offset,
+ unsigned int part)
{
struct efi_disk_obj *diskobj;
- struct efi_device_path_file_path *dp;
- int objlen = sizeof(*diskobj) + (sizeof(*dp) * 2);
/* Don't add empty devices */
if (!desc->lba)
return;
- diskobj = calloc(1, objlen);
+ diskobj = calloc(1, sizeof(*diskobj));
/* Fill in object data */
- dp = (void *)&diskobj[1];
+ diskobj->dp = efi_dp_from_part(desc, part);
+ diskobj->part = part;
diskobj->parent.protocols[0].guid = &efi_block_io_guid;
diskobj->parent.protocols[0].protocol_interface = &diskobj->ops;
diskobj->parent.protocols[1].guid = &efi_guid_device_path;
- diskobj->parent.protocols[1].protocol_interface = dp;
+ diskobj->parent.protocols[1].protocol_interface = diskobj->dp;
+ if (part >= 1) {
+ diskobj->volume = efi_simple_file_system(desc, part,
+ diskobj->dp);
+ diskobj->parent.protocols[2].guid =
+ &efi_simple_file_system_protocol_guid;
+ diskobj->parent.protocols[2].protocol_interface =
+ diskobj->volume;
+ }
diskobj->parent.handle = diskobj;
diskobj->ops = block_io_disk_template;
diskobj->ifname = if_typename;
diskobj->media.last_block = desc->lba - offset;
diskobj->ops.media = &diskobj->media;
- /* Fill in device path */
- diskobj->dp = dp;
- dp[0].dp.type = DEVICE_PATH_TYPE_MEDIA_DEVICE;
- dp[0].dp.sub_type = DEVICE_PATH_SUB_TYPE_FILE_PATH;
- dp[0].dp.length = sizeof(*dp);
- ascii2unicode(dp[0].str, name);
-
- dp[1].dp.type = DEVICE_PATH_TYPE_END;
- dp[1].dp.sub_type = DEVICE_PATH_SUB_TYPE_END;
- dp[1].dp.length = sizeof(*dp);
-
/* Hook up to the device list */
list_add_tail(&diskobj->parent.link, &efi_obj_list);
}
if (desc->part_type != PART_TYPE_ISO)
return 0;
+ /* and devices for each partition: */
while (!part_get_info(desc, part, &info)) {
snprintf(devname, sizeof(devname), "%s:%d", pdevname,
part);
efi_disk_add_dev(devname, if_typename, desc, diskid,
- info.start);
+ info.start, part);
part++;
disks++;
}
+
+ /* ... and add block device: */
+ efi_disk_add_dev(devname, if_typename, desc, diskid, 0, 0);
#endif
return disks;
uclass_next_device_check(&dev)) {
struct blk_desc *desc = dev_get_uclass_platdata(dev);
const char *if_typename = dev->driver->name;
+ disk_partition_t info;
+ int part = 1;
printf("Scanning disk %s...\n", dev->name);
- efi_disk_add_dev(dev->name, if_typename, desc, desc->devnum, 0);
+
+ /* add devices for each partition: */
+ while (!part_get_info(desc, part, &info)) {
+ efi_disk_add_dev(dev->name, if_typename, desc,
+ desc->devnum, 0, part);
+ part++;
+ }
+
+ /* ... and add block device: */
+ efi_disk_add_dev(dev->name, if_typename, desc,
+ desc->devnum, 0, 0);
+
disks++;
/*
snprintf(devname, sizeof(devname), "%s%d",
if_typename, i);
- efi_disk_add_dev(devname, if_typename, desc, i, 0);
+ efi_disk_add_dev(devname, if_typename, desc, i, 0, 0);
disks++;
/*
--- /dev/null
+/*
+ * EFI utils
+ *
+ * Copyright (c) 2017 Rob Clark
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <charset.h>
+#include <efi_loader.h>
+#include <malloc.h>
+#include <fs.h>
+
+struct file_system {
+ struct efi_simple_file_system_protocol base;
+ struct efi_device_path *dp;
+ struct blk_desc *desc;
+ int part;
+};
+#define to_fs(x) container_of(x, struct file_system, base)
+
+struct file_handle {
+ struct efi_file_handle base;
+ struct file_system *fs;
+ loff_t offset; /* current file position/cursor */
+ int isdir;
+
+ /* for reading a directory: */
+ struct fs_dir_stream *dirs;
+ struct fs_dirent *dent;
+
+ char path[0];
+};
+#define to_fh(x) container_of(x, struct file_handle, base)
+
+static const struct efi_file_handle efi_file_handle_protocol;
+
+static char *basename(struct file_handle *fh)
+{
+ char *s = strrchr(fh->path, '/');
+ if (s)
+ return s + 1;
+ return fh->path;
+}
+
+static int set_blk_dev(struct file_handle *fh)
+{
+ return fs_set_blk_dev_with_part(fh->fs->desc, fh->fs->part);
+}
+
+static int is_dir(struct file_handle *fh)
+{
+ struct fs_dir_stream *dirs;
+
+ set_blk_dev(fh);
+ dirs = fs_opendir(fh->path);
+ if (!dirs)
+ return 0;
+
+ fs_closedir(dirs);
+
+ return 1;
+}
+
+/*
+ * Normalize a path which may include either back or fwd slashes,
+ * double slashes, . or .. entries in the path, etc.
+ */
+static int sanitize_path(char *path)
+{
+ char *p;
+
+ /* backslash to slash: */
+ p = path;
+ while ((p = strchr(p, '\\')))
+ *p++ = '/';
+
+ /* handle double-slashes: */
+ p = path;
+ while ((p = strstr(p, "//"))) {
+ char *src = p + 1;
+ memmove(p, src, strlen(src) + 1);
+ }
+
+ /* handle extra /.'s */
+ p = path;
+ while ((p = strstr(p, "/."))) {
+ /*
+ * You'd be tempted to do this *after* handling ".."s
+ * below to avoid having to check if "/." is start of
+ * a "/..", but that won't have the correct results..
+ * for example, "/foo/./../bar" would get resolved to
+ * "/foo/bar" if you did these two passes in the other
+ * order
+ */
+ if (p[2] == '.') {
+ p += 2;
+ continue;
+ }
+ char *src = p + 2;
+ memmove(p, src, strlen(src) + 1);
+ }
+
+ /* handle extra /..'s: */
+ p = path;
+ while ((p = strstr(p, "/.."))) {
+ char *src = p + 3;
+
+ p--;
+
+ /* find beginning of previous path entry: */
+ while (true) {
+ if (p < path)
+ return -1;
+ if (*p == '/')
+ break;
+ p--;
+ }
+
+ memmove(p, src, strlen(src) + 1);
+ }
+
+ return 0;
+}
+
+/* NOTE: despite what you would expect, 'file_name' is actually a path.
+ * With windoze style backlashes, ofc.
+ */
+static struct efi_file_handle *file_open(struct file_system *fs,
+ struct file_handle *parent, s16 *file_name, u64 mode)
+{
+ struct file_handle *fh;
+ char f0[MAX_UTF8_PER_UTF16] = {0};
+ int plen = 0;
+ int flen = 0;
+
+ if (file_name) {
+ utf16_to_utf8((u8 *)f0, (u16 *)file_name, 1);
+ flen = utf16_strlen((u16 *)file_name);
+ }
+
+ /* we could have a parent, but also an absolute path: */
+ if (f0[0] == '\\') {
+ plen = 0;
+ } else if (parent) {
+ plen = strlen(parent->path) + 1;
+ }
+
+ /* +2 is for null and '/' */
+ fh = calloc(1, sizeof(*fh) + plen + (flen * MAX_UTF8_PER_UTF16) + 2);
+
+ fh->base = efi_file_handle_protocol;
+ fh->fs = fs;
+
+ if (parent) {
+ char *p = fh->path;
+
+ if (plen > 0) {
+ strcpy(p, parent->path);
+ p += plen - 1;
+ *p++ = '/';
+ }
+
+ utf16_to_utf8((u8 *)p, (u16 *)file_name, flen);
+
+ if (sanitize_path(fh->path))
+ goto error;
+
+ /* check if file exists: */
+ if (set_blk_dev(fh))
+ goto error;
+
+ if (!((mode & EFI_FILE_MODE_CREATE) || fs_exists(fh->path)))
+ goto error;
+
+ /* figure out if file is a directory: */
+ fh->isdir = is_dir(fh);
+ } else {
+ fh->isdir = 1;
+ strcpy(fh->path, "");
+ }
+
+ return &fh->base;
+
+error:
+ free(fh);
+ return NULL;
+}
+
+static efi_status_t EFIAPI efi_file_open(struct efi_file_handle *file,
+ struct efi_file_handle **new_handle,
+ s16 *file_name, u64 open_mode, u64 attributes)
+{
+ struct file_handle *fh = to_fh(file);
+
+ EFI_ENTRY("%p, %p, \"%ls\", %llx, %llu", file, new_handle, file_name,
+ open_mode, attributes);
+
+ *new_handle = file_open(fh->fs, fh, file_name, open_mode);
+ if (!*new_handle)
+ return EFI_EXIT(EFI_NOT_FOUND);
+
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+static efi_status_t file_close(struct file_handle *fh)
+{
+ fs_closedir(fh->dirs);
+ free(fh);
+ return EFI_SUCCESS;
+}
+
+static efi_status_t EFIAPI efi_file_close(struct efi_file_handle *file)
+{
+ struct file_handle *fh = to_fh(file);
+ EFI_ENTRY("%p", file);
+ return EFI_EXIT(file_close(fh));
+}
+
+static efi_status_t EFIAPI efi_file_delete(struct efi_file_handle *file)
+{
+ struct file_handle *fh = to_fh(file);
+ EFI_ENTRY("%p", file);
+ file_close(fh);
+ return EFI_EXIT(EFI_WARN_DELETE_FAILURE);
+}
+
+static efi_status_t file_read(struct file_handle *fh, u64 *buffer_size,
+ void *buffer)
+{
+ loff_t actread;
+
+ if (fs_read(fh->path, (ulong)buffer, fh->offset,
+ *buffer_size, &actread))
+ return EFI_DEVICE_ERROR;
+
+ *buffer_size = actread;
+ fh->offset += actread;
+
+ return EFI_SUCCESS;
+}
+
+static efi_status_t dir_read(struct file_handle *fh, u64 *buffer_size,
+ void *buffer)
+{
+ struct efi_file_info *info = buffer;
+ struct fs_dirent *dent;
+ unsigned int required_size;
+
+ if (!fh->dirs) {
+ assert(fh->offset == 0);
+ fh->dirs = fs_opendir(fh->path);
+ if (!fh->dirs)
+ return EFI_DEVICE_ERROR;
+ }
+
+ /*
+ * So this is a bit awkward. Since fs layer is stateful and we
+ * can't rewind an entry, in the EFI_BUFFER_TOO_SMALL case below
+ * we might have to return without consuming the dent.. so we
+ * have to stash it for next call.
+ */
+ if (fh->dent) {
+ dent = fh->dent;
+ fh->dent = NULL;
+ } else {
+ dent = fs_readdir(fh->dirs);
+ }
+
+
+ if (!dent) {
+ /* no more files in directory: */
+ /* workaround shim.efi bug/quirk.. as find_boot_csv()
+ * loops through directory contents, it initially calls
+ * read w/ zero length buffer to find out how much mem
+ * to allocate for the EFI_FILE_INFO, then allocates,
+ * and then calls a 2nd time. If we return size of
+ * zero the first time, it happily passes that to
+ * AllocateZeroPool(), and when that returns NULL it
+ * thinks it is EFI_OUT_OF_RESOURCES. So on first
+ * call return a non-zero size:
+ */
+ if (*buffer_size == 0)
+ *buffer_size = sizeof(*info);
+ else
+ *buffer_size = 0;
+ return EFI_SUCCESS;
+ }
+
+ /* check buffer size: */
+ required_size = sizeof(*info) + 2 * (strlen(dent->name) + 1);
+ if (*buffer_size < required_size) {
+ *buffer_size = required_size;
+ fh->dent = dent;
+ return EFI_BUFFER_TOO_SMALL;
+ }
+
+ *buffer_size = required_size;
+ memset(info, 0, required_size);
+
+ info->size = required_size;
+ info->file_size = dent->size;
+ info->physical_size = dent->size;
+
+ if (dent->type == FS_DT_DIR)
+ info->attribute |= EFI_FILE_DIRECTORY;
+
+ ascii2unicode((u16 *)info->file_name, dent->name);
+
+ fh->offset++;
+
+ return EFI_SUCCESS;
+}
+
+static efi_status_t EFIAPI efi_file_read(struct efi_file_handle *file,
+ u64 *buffer_size, void *buffer)
+{
+ struct file_handle *fh = to_fh(file);
+ efi_status_t ret = EFI_SUCCESS;
+
+ EFI_ENTRY("%p, %p, %p", file, buffer_size, buffer);
+
+ if (set_blk_dev(fh)) {
+ ret = EFI_DEVICE_ERROR;
+ goto error;
+ }
+
+ if (fh->isdir)
+ ret = dir_read(fh, buffer_size, buffer);
+ else
+ ret = file_read(fh, buffer_size, buffer);
+
+error:
+ return EFI_EXIT(ret);
+}
+
+static efi_status_t EFIAPI efi_file_write(struct efi_file_handle *file,
+ u64 *buffer_size, void *buffer)
+{
+ struct file_handle *fh = to_fh(file);
+ efi_status_t ret = EFI_SUCCESS;
+ loff_t actwrite;
+
+ EFI_ENTRY("%p, %p, %p", file, buffer_size, buffer);
+
+ if (set_blk_dev(fh)) {
+ ret = EFI_DEVICE_ERROR;
+ goto error;
+ }
+
+ if (fs_write(fh->path, (ulong)buffer, fh->offset, *buffer_size,
+ &actwrite)) {
+ ret = EFI_DEVICE_ERROR;
+ goto error;
+ }
+
+ *buffer_size = actwrite;
+ fh->offset += actwrite;
+
+error:
+ return EFI_EXIT(ret);
+}
+
+static efi_status_t EFIAPI efi_file_getpos(struct efi_file_handle *file,
+ u64 *pos)
+{
+ struct file_handle *fh = to_fh(file);
+ EFI_ENTRY("%p, %p", file, pos);
+ *pos = fh->offset;
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+static efi_status_t EFIAPI efi_file_setpos(struct efi_file_handle *file,
+ u64 pos)
+{
+ struct file_handle *fh = to_fh(file);
+ efi_status_t ret = EFI_SUCCESS;
+
+ EFI_ENTRY("%p, %llu", file, pos);
+
+ if (fh->isdir) {
+ if (pos != 0) {
+ ret = EFI_UNSUPPORTED;
+ goto error;
+ }
+ fs_closedir(fh->dirs);
+ fh->dirs = NULL;
+ }
+
+ if (pos == ~0ULL) {
+ loff_t file_size;
+
+ if (set_blk_dev(fh)) {
+ ret = EFI_DEVICE_ERROR;
+ goto error;
+ }
+
+ if (fs_size(fh->path, &file_size)) {
+ ret = EFI_DEVICE_ERROR;
+ goto error;
+ }
+
+ pos = file_size;
+ }
+
+ fh->offset = pos;
+
+error:
+ return EFI_EXIT(ret);
+}
+
+static efi_status_t EFIAPI efi_file_getinfo(struct efi_file_handle *file,
+ efi_guid_t *info_type, u64 *buffer_size, void *buffer)
+{
+ struct file_handle *fh = to_fh(file);
+ efi_status_t ret = EFI_SUCCESS;
+
+ EFI_ENTRY("%p, %p, %p, %p", file, info_type, buffer_size, buffer);
+
+ if (!guidcmp(info_type, &efi_file_info_guid)) {
+ struct efi_file_info *info = buffer;
+ char *filename = basename(fh);
+ unsigned int required_size;
+ loff_t file_size;
+
+ /* check buffer size: */
+ required_size = sizeof(*info) + 2 * (strlen(filename) + 1);
+ if (*buffer_size < required_size) {
+ *buffer_size = required_size;
+ ret = EFI_BUFFER_TOO_SMALL;
+ goto error;
+ }
+
+ if (set_blk_dev(fh)) {
+ ret = EFI_DEVICE_ERROR;
+ goto error;
+ }
+
+ if (fs_size(fh->path, &file_size)) {
+ ret = EFI_DEVICE_ERROR;
+ goto error;
+ }
+
+ memset(info, 0, required_size);
+
+ info->size = required_size;
+ info->file_size = file_size;
+ info->physical_size = file_size;
+
+ if (fh->isdir)
+ info->attribute |= EFI_FILE_DIRECTORY;
+
+ ascii2unicode((u16 *)info->file_name, filename);
+ } else {
+ ret = EFI_UNSUPPORTED;
+ }
+
+error:
+ return EFI_EXIT(ret);
+}
+
+static efi_status_t EFIAPI efi_file_setinfo(struct efi_file_handle *file,
+ efi_guid_t *info_type, u64 buffer_size, void *buffer)
+{
+ EFI_ENTRY("%p, %p, %llu, %p", file, info_type, buffer_size, buffer);
+ return EFI_EXIT(EFI_UNSUPPORTED);
+}
+
+static efi_status_t EFIAPI efi_file_flush(struct efi_file_handle *file)
+{
+ EFI_ENTRY("%p", file);
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+static const struct efi_file_handle efi_file_handle_protocol = {
+ .rev = EFI_FILE_PROTOCOL_REVISION,
+ .open = efi_file_open,
+ .close = efi_file_close,
+ .delete = efi_file_delete,
+ .read = efi_file_read,
+ .write = efi_file_write,
+ .getpos = efi_file_getpos,
+ .setpos = efi_file_setpos,
+ .getinfo = efi_file_getinfo,
+ .setinfo = efi_file_setinfo,
+ .flush = efi_file_flush,
+};
+
+struct efi_file_handle *efi_file_from_path(struct efi_device_path *fp)
+{
+ struct efi_simple_file_system_protocol *v;
+ struct efi_file_handle *f;
+ efi_status_t ret;
+
+ v = efi_fs_from_path(fp);
+ if (!v)
+ return NULL;
+
+ EFI_CALL(ret = v->open_volume(v, &f));
+ if (ret != EFI_SUCCESS)
+ return NULL;
+
+ /* skip over device-path nodes before the file path: */
+ while (fp && !EFI_DP_TYPE(fp, MEDIA_DEVICE, FILE_PATH))
+ fp = efi_dp_next(fp);
+
+ while (fp) {
+ struct efi_device_path_file_path *fdp =
+ container_of(fp, struct efi_device_path_file_path, dp);
+ struct efi_file_handle *f2;
+
+ if (!EFI_DP_TYPE(fp, MEDIA_DEVICE, FILE_PATH)) {
+ printf("bad file path!\n");
+ f->close(f);
+ return NULL;
+ }
+
+ EFI_CALL(ret = f->open(f, &f2, (s16 *)fdp->str,
+ EFI_FILE_MODE_READ, 0));
+ if (ret != EFI_SUCCESS)
+ return NULL;
+
+ fp = efi_dp_next(fp);
+
+ EFI_CALL(f->close(f));
+ f = f2;
+ }
+
+ return f;
+}
+
+static efi_status_t EFIAPI
+efi_open_volume(struct efi_simple_file_system_protocol *this,
+ struct efi_file_handle **root)
+{
+ struct file_system *fs = to_fs(this);
+
+ EFI_ENTRY("%p, %p", this, root);
+
+ *root = file_open(fs, NULL, NULL, 0);
+
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+struct efi_simple_file_system_protocol *
+efi_simple_file_system(struct blk_desc *desc, int part,
+ struct efi_device_path *dp)
+{
+ struct file_system *fs;
+
+ fs = calloc(1, sizeof(*fs));
+ fs->base.rev = EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION;
+ fs->base.open_volume = efi_open_volume;
+ fs->desc = desc;
+ fs->part = part;
+ fs->dp = dp;
+
+ return &fs->base;
+}
DECLARE_GLOBAL_DATA_PTR;
+const efi_guid_t efi_global_variable_guid = EFI_GLOBAL_VARIABLE_GUID;
const efi_guid_t efi_guid_device_path = DEVICE_PATH_GUID;
const efi_guid_t efi_guid_loaded_image = LOADED_IMAGE_GUID;
+const efi_guid_t efi_simple_file_system_protocol_guid =
+ EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID;
+const efi_guid_t efi_file_info_guid = EFI_FILE_INFO_GUID;
static efi_status_t efi_loader_relocate(const IMAGE_BASE_RELOCATION *rel,
unsigned long rel_size, void *efi_reloc)
unsigned long virt_size = 0;
bool can_run_nt64 = true;
bool can_run_nt32 = true;
+ uint16_t image_type;
#if defined(CONFIG_ARM64)
can_run_nt32 = false;
entry = efi_reloc + opt->AddressOfEntryPoint;
rel_size = opt->DataDirectory[rel_idx].Size;
rel = efi_reloc + opt->DataDirectory[rel_idx].VirtualAddress;
+ image_type = opt->Subsystem;
} else if (can_run_nt32 &&
(nt->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR32_MAGIC)) {
IMAGE_OPTIONAL_HEADER32 *opt = &nt->OptionalHeader;
entry = efi_reloc + opt->AddressOfEntryPoint;
rel_size = opt->DataDirectory[rel_idx].Size;
rel = efi_reloc + opt->DataDirectory[rel_idx].VirtualAddress;
+ image_type = opt->Subsystem;
} else {
printf("%s: Invalid optional header magic %x\n", __func__,
nt->OptionalHeader.Magic);
return NULL;
}
+ switch (image_type) {
+ case IMAGE_SUBSYSTEM_EFI_APPLICATION:
+ loaded_image_info->image_code_type = EFI_LOADER_CODE;
+ loaded_image_info->image_data_type = EFI_LOADER_DATA;
+ break;
+ case IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER:
+ loaded_image_info->image_code_type = EFI_BOOT_SERVICES_CODE;
+ loaded_image_info->image_data_type = EFI_BOOT_SERVICES_DATA;
+ break;
+ case IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER:
+ case IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER:
+ loaded_image_info->image_code_type = EFI_RUNTIME_SERVICES_CODE;
+ loaded_image_info->image_data_type = EFI_RUNTIME_SERVICES_DATA;
+ break;
+ default:
+ printf("%s: invalid image type: %u\n", __func__, image_type);
+ break;
+ }
+
/* Load sections into RAM */
for (i = num_sections - 1; i >= 0; i--) {
IMAGE_SECTION_HEADER *sec = §ions[i];
*/
struct efi_pool_allocation {
u64 num_pages;
- char data[];
+ char data[] __aligned(ARCH_DMA_MINALIGN);
};
/*
{
efi_status_t r;
efi_physical_addr_t t;
- u64 num_pages = (size + sizeof(u64) + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT;
+ u64 num_pages = (size + sizeof(struct efi_pool_allocation) +
+ EFI_PAGE_MASK) >> EFI_PAGE_SHIFT;
if (size == 0) {
*buffer = NULL;
/* EFI Interface callback struct for network */
struct efi_simple_network net;
struct efi_simple_network_mode net_mode;
- /* Device path to the network adapter */
- struct efi_device_path_mac_addr dp_mac;
- struct efi_device_path_file_path dp_end;
/* PXE struct to transmit dhcp data */
struct efi_pxe pxe;
struct efi_pxe_mode pxe_mode;
}
/* This gets called from do_bootefi_exec(). */
-int efi_net_register(void **handle)
+int efi_net_register(void)
{
struct efi_net_obj *netobj;
- struct efi_device_path_mac_addr dp_net = {
- .dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE,
- .dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_MAC_ADDR,
- .dp.length = sizeof(dp_net),
- };
- struct efi_device_path_file_path dp_end = {
- .dp.type = DEVICE_PATH_TYPE_END,
- .dp.sub_type = DEVICE_PATH_SUB_TYPE_END,
- .dp.length = sizeof(dp_end),
- };
if (!eth_get_dev()) {
/* No eth device active, don't expose any */
netobj->parent.protocols[0].guid = &efi_net_guid;
netobj->parent.protocols[0].protocol_interface = &netobj->net;
netobj->parent.protocols[1].guid = &efi_guid_device_path;
- netobj->parent.protocols[1].protocol_interface = &netobj->dp_mac;
+ netobj->parent.protocols[1].protocol_interface =
+ efi_dp_from_eth();
netobj->parent.protocols[2].guid = &efi_pxe_guid;
netobj->parent.protocols[2].protocol_interface = &netobj->pxe;
netobj->parent.handle = &netobj->net;
netobj->net.receive = efi_net_receive;
netobj->net.mode = &netobj->net_mode;
netobj->net_mode.state = EFI_NETWORK_STARTED;
- netobj->dp_mac = dp_net;
- netobj->dp_end = dp_end;
- memcpy(netobj->dp_mac.mac.addr, eth_get_ethaddr(), 6);
memcpy(netobj->net_mode.current_address.mac_addr, eth_get_ethaddr(), 6);
netobj->net_mode.max_packet_size = PKTSIZE;
/* Hook net up to the device list */
list_add_tail(&netobj->parent.link, &efi_obj_list);
- if (handle)
- *handle = &netobj->net;
-
return 0;
}
/* Clean up system table */
.ptr = &systab.boottime,
.patchto = NULL,
- },
+ }, {
+ .ptr = &efi_runtime_services.get_variable,
+ .patchto = &efi_device_error,
+ }, {
+ .ptr = &efi_runtime_services.get_next_variable,
+ .patchto = &efi_device_error,
+ }, {
+ .ptr = &efi_runtime_services.set_variable,
+ .patchto = &efi_device_error,
+ }
};
static bool efi_runtime_tobedetached(void *p)
/* Check if the relocation is inside bounds */
if (map && ((newaddr < map->virtual_start) ||
- newaddr > (map->virtual_start + (map->num_pages << 12)))) {
+ newaddr > (map->virtual_start +
+ (map->num_pages << EFI_PAGE_SHIFT)))) {
if (!efi_runtime_tobedetached(p))
printf("U-Boot EFI: Relocation at %p is out of "
"range (%lx)\n", p, newaddr);
uint32_t descriptor_version,
struct efi_mem_desc *virtmap)
{
- ulong runtime_start = (ulong)&__efi_runtime_start & ~0xfffULL;
+ ulong runtime_start = (ulong)&__efi_runtime_start &
+ ~(ulong)EFI_PAGE_MASK;
int n = memory_map_size / descriptor_size;
int i;
.set_wakeup_time = (void *)&efi_unimplemented,
.set_virtual_address_map = &efi_set_virtual_address_map,
.convert_pointer = (void *)&efi_invalid_parameter,
- .get_variable = (void *)&efi_device_error,
- .get_next_variable = (void *)&efi_device_error,
- .set_variable = (void *)&efi_device_error,
+ .get_variable = efi_get_variable,
+ .get_next_variable = efi_get_next_variable,
+ .set_variable = efi_set_variable,
.get_next_high_mono_count = (void *)&efi_device_error,
.reset_system = &efi_reset_system_boottime,
};
--- /dev/null
+/*
+ * EFI utils
+ *
+ * Copyright (c) 2017 Rob Clark
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <malloc.h>
+#include <charset.h>
+#include <efi_loader.h>
+
+#define READ_ONLY BIT(31)
+
+/*
+ * Mapping between EFI variables and u-boot variables:
+ *
+ * efi_$guid_$varname = {attributes}(type)value
+ *
+ * For example:
+ *
+ * efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_OsIndicationsSupported=
+ * "{ro,boot,run}(blob)0000000000000000"
+ * efi_8be4df61-93ca-11d2-aa0d-00e098032b8c_BootOrder=
+ * "(blob)00010000"
+ *
+ * The attributes are a comma separated list of these possible
+ * attributes:
+ *
+ * + ro - read-only
+ * + boot - boot-services access
+ * + run - runtime access
+ *
+ * NOTE: with current implementation, no variables are available after
+ * ExitBootServices, and all are persisted (if possible).
+ *
+ * If not specified, the attributes default to "{boot}".
+ *
+ * The required type is one of:
+ *
+ * + utf8 - raw utf8 string
+ * + blob - arbitrary length hex string
+ *
+ * Maybe a utf16 type would be useful to for a string value to be auto
+ * converted to utf16?
+ */
+
+#define MAX_VAR_NAME 31
+#define MAX_NATIVE_VAR_NAME \
+ (strlen("efi_xxxxxxxx-xxxx-xxxx-xxxxxxxxxxxxxxxx_") + \
+ (MAX_VAR_NAME * MAX_UTF8_PER_UTF16))
+
+static int hex(unsigned char ch)
+{
+ if (ch >= 'a' && ch <= 'f')
+ return ch-'a'+10;
+ if (ch >= '0' && ch <= '9')
+ return ch-'0';
+ if (ch >= 'A' && ch <= 'F')
+ return ch-'A'+10;
+ return -1;
+}
+
+static const char *hex2mem(u8 *mem, const char *hexstr, int count)
+{
+ memset(mem, 0, count/2);
+
+ do {
+ int nibble;
+
+ *mem = 0;
+
+ if (!count || !*hexstr)
+ break;
+
+ nibble = hex(*hexstr);
+ if (nibble < 0)
+ break;
+
+ *mem = nibble;
+ count--;
+ hexstr++;
+
+ if (!count || !*hexstr)
+ break;
+
+ nibble = hex(*hexstr);
+ if (nibble < 0)
+ break;
+
+ *mem = (*mem << 4) | nibble;
+ count--;
+ hexstr++;
+ mem++;
+
+ } while (1);
+
+ if (*hexstr)
+ return hexstr;
+
+ return NULL;
+}
+
+static char *mem2hex(char *hexstr, const u8 *mem, int count)
+{
+ static const char hexchars[] = "0123456789abcdef";
+
+ while (count-- > 0) {
+ u8 ch = *mem++;
+ *hexstr++ = hexchars[ch >> 4];
+ *hexstr++ = hexchars[ch & 0xf];
+ }
+
+ return hexstr;
+}
+
+static efi_status_t efi_to_native(char *native, s16 *variable_name,
+ efi_guid_t *vendor)
+{
+ size_t len;
+
+ len = utf16_strlen((u16 *)variable_name);
+ if (len >= MAX_VAR_NAME)
+ return EFI_DEVICE_ERROR;
+
+ native += sprintf(native, "efi_%pUl_", vendor);
+ native = (char *)utf16_to_utf8((u8 *)native, (u16 *)variable_name, len);
+ *native = '\0';
+
+ return EFI_SUCCESS;
+}
+
+static const char *prefix(const char *str, const char *prefix)
+{
+ size_t n = strlen(prefix);
+ if (!strncmp(prefix, str, n))
+ return str + n;
+ return NULL;
+}
+
+/* parse attributes part of variable value, if present: */
+static const char *parse_attr(const char *str, u32 *attrp)
+{
+ u32 attr = 0;
+ char sep = '{';
+
+ if (*str != '{') {
+ *attrp = EFI_VARIABLE_BOOTSERVICE_ACCESS;
+ return str;
+ }
+
+ while (*str == sep) {
+ const char *s;
+
+ str++;
+
+ if ((s = prefix(str, "ro"))) {
+ attr |= READ_ONLY;
+ } else if ((s = prefix(str, "boot"))) {
+ attr |= EFI_VARIABLE_BOOTSERVICE_ACCESS;
+ } else if ((s = prefix(str, "run"))) {
+ attr |= EFI_VARIABLE_RUNTIME_ACCESS;
+ } else {
+ printf("invalid attribute: %s\n", str);
+ break;
+ }
+
+ str = s;
+ sep = ',';
+ }
+
+ str++;
+
+ *attrp = attr;
+
+ return str;
+}
+
+/* http://wiki.phoenix.com/wiki/index.php/EFI_RUNTIME_SERVICES#GetVariable.28.29 */
+efi_status_t EFIAPI efi_get_variable(s16 *variable_name,
+ efi_guid_t *vendor, u32 *attributes,
+ unsigned long *data_size, void *data)
+{
+ char native_name[MAX_NATIVE_VAR_NAME + 1];
+ efi_status_t ret;
+ unsigned long in_size;
+ const char *val, *s;
+ u32 attr;
+
+ EFI_ENTRY("\"%ls\" %pUl %p %p %p", variable_name, vendor, attributes,
+ data_size, data);
+
+ if (!variable_name || !vendor || !data_size)
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+ ret = efi_to_native(native_name, variable_name, vendor);
+ if (ret)
+ return EFI_EXIT(ret);
+
+ debug("%s: get '%s'\n", __func__, native_name);
+
+ val = env_get(native_name);
+ if (!val)
+ return EFI_EXIT(EFI_NOT_FOUND);
+
+ val = parse_attr(val, &attr);
+
+ in_size = *data_size;
+
+ if ((s = prefix(val, "(blob)"))) {
+ unsigned len = strlen(s);
+
+ /* two characters per byte: */
+ len = DIV_ROUND_UP(len, 2);
+ *data_size = len;
+
+ if (in_size < len)
+ return EFI_EXIT(EFI_BUFFER_TOO_SMALL);
+
+ if (!data)
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+ if (hex2mem(data, s, len * 2))
+ return EFI_EXIT(EFI_DEVICE_ERROR);
+
+ debug("%s: got value: \"%s\"\n", __func__, s);
+ } else if ((s = prefix(val, "(utf8)"))) {
+ unsigned len = strlen(s) + 1;
+
+ *data_size = len;
+
+ if (in_size < len)
+ return EFI_EXIT(EFI_BUFFER_TOO_SMALL);
+
+ if (!data)
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+ memcpy(data, s, len);
+ ((char *)data)[len] = '\0';
+
+ debug("%s: got value: \"%s\"\n", __func__, (char *)data);
+ } else {
+ debug("%s: invalid value: '%s'\n", __func__, val);
+ return EFI_EXIT(EFI_DEVICE_ERROR);
+ }
+
+ if (attributes)
+ *attributes = attr & EFI_VARIABLE_MASK;
+
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+/* http://wiki.phoenix.com/wiki/index.php/EFI_RUNTIME_SERVICES#GetNextVariableName.28.29 */
+efi_status_t EFIAPI efi_get_next_variable(
+ unsigned long *variable_name_size,
+ s16 *variable_name, efi_guid_t *vendor)
+{
+ EFI_ENTRY("%p \"%ls\" %pUl", variable_name_size, variable_name, vendor);
+
+ return EFI_EXIT(EFI_DEVICE_ERROR);
+}
+
+/* http://wiki.phoenix.com/wiki/index.php/EFI_RUNTIME_SERVICES#SetVariable.28.29 */
+efi_status_t EFIAPI efi_set_variable(s16 *variable_name,
+ efi_guid_t *vendor, u32 attributes,
+ unsigned long data_size, void *data)
+{
+ char native_name[MAX_NATIVE_VAR_NAME + 1];
+ efi_status_t ret = EFI_SUCCESS;
+ char *val, *s;
+ u32 attr;
+
+ EFI_ENTRY("\"%ls\" %pUl %x %lu %p", variable_name, vendor, attributes,
+ data_size, data);
+
+ if (!variable_name || !vendor)
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+ ret = efi_to_native(native_name, variable_name, vendor);
+ if (ret)
+ return EFI_EXIT(ret);
+
+#define ACCESS_ATTR (EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS)
+
+ if ((data_size == 0) || !(attributes & ACCESS_ATTR)) {
+ /* delete the variable: */
+ env_set(native_name, NULL);
+ return EFI_EXIT(EFI_SUCCESS);
+ }
+
+ val = env_get(native_name);
+ if (val) {
+ parse_attr(val, &attr);
+
+ if (attr & READ_ONLY)
+ return EFI_EXIT(EFI_WRITE_PROTECTED);
+ }
+
+ val = malloc(2 * data_size + strlen("{ro,run,boot}(blob)") + 1);
+ if (!val)
+ return EFI_EXIT(EFI_OUT_OF_RESOURCES);
+
+ s = val;
+
+ /* store attributes: */
+ attributes &= (EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS);
+ s += sprintf(s, "{");
+ while (attributes) {
+ u32 attr = 1 << (ffs(attributes) - 1);
+
+ if (attr == EFI_VARIABLE_BOOTSERVICE_ACCESS)
+ s += sprintf(s, "boot");
+ else if (attr == EFI_VARIABLE_RUNTIME_ACCESS)
+ s += sprintf(s, "run");
+
+ attributes &= ~attr;
+ if (attributes)
+ s += sprintf(s, ",");
+ }
+ s += sprintf(s, "}");
+
+ /* store payload: */
+ s += sprintf(s, "(blob)");
+ s = mem2hex(s, data, data_size);
+ *s = '\0';
+
+ debug("%s: setting: %s=%s\n", __func__, native_name, val);
+
+ if (env_set(native_name, val))
+ ret = EFI_DEVICE_ERROR;
+
+ free(val);
+
+ return EFI_EXIT(ret);
+}
--- /dev/null
+config CMD_BOOTEFI_SELFTEST
+ bool "Allow booting an EFI efi_selftest"
+ depends on CMD_BOOTEFI
+ help
+ This adds an EFI test application to U-Boot that can be executed
+ with the 'bootefi selftest' command. It provides extended tests of
+ the EFI API implementation.
--- /dev/null
+:
+# (C) Copyright 2017, Heinrich Schuchardt <xypron.glpk@gmx.de>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+# This file only gets included with CONFIG_EFI_LOADER set, so all
+# object inclusion implicitly depends on it
+
+CFLAGS_efi_selftest.o := $(CFLAGS_EFI)
+CFLAGS_REMOVE_efi_selftest.o := $(CFLAGS_NON_EFI)
+CFLAGS_efi_selftest_console.o := $(CFLAGS_EFI)
+CFLAGS_REMOVE_efi_selftest_console.o := $(CFLAGS_NON_EFI)
+CFLAGS_efi_selftest_events.o := $(CFLAGS_EFI)
+CFLAGS_REMOVE_efi_selftest_events.o := $(CFLAGS_NON_EFI)
+CFLAGS_efi_selftest_exitbootservices.o := $(CFLAGS_EFI)
+CFLAGS_REMOVE_efi_selftest_exitbootservices.o := $(CFLAGS_NON_EFI)
+CFLAGS_efi_selftest_tpl.o := $(CFLAGS_EFI)
+CFLAGS_REMOVE_efi_selftest_tpl.o := $(CFLAGS_NON_EFI)
+
+obj-$(CONFIG_CMD_BOOTEFI_SELFTEST) += \
+efi_selftest.o \
+efi_selftest_console.o \
+efi_selftest_events.o \
+efi_selftest_exitbootservices.o \
+efi_selftest_tpl.o
--- /dev/null
+/*
+ * EFI efi_selftest
+ *
+ * Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <efi_selftest.h>
+#include <vsprintf.h>
+
+static const struct efi_system_table *systable;
+static const struct efi_boot_services *boottime;
+static const struct efi_runtime_services *runtime;
+static efi_handle_t handle;
+static u16 reset_message[] = L"Selftest completed";
+
+/*
+ * Exit the boot services.
+ *
+ * The size of the memory map is determined.
+ * Pool memory is allocated to copy the memory map.
+ * The memory amp is copied and the map key is obtained.
+ * The map key is used to exit the boot services.
+ */
+void efi_st_exit_boot_services(void)
+{
+ unsigned long map_size = 0;
+ unsigned long map_key;
+ unsigned long desc_size;
+ u32 desc_version;
+ efi_status_t ret;
+ struct efi_mem_desc *memory_map;
+
+ ret = boottime->get_memory_map(&map_size, NULL, &map_key, &desc_size,
+ &desc_version);
+ if (ret != EFI_BUFFER_TOO_SMALL) {
+ efi_st_printf("ERROR: GetMemoryMap did not return "
+ "EFI_BUFFER_TOO_SMALL\n");
+ return;
+ }
+ /* Allocate extra space for newly allocated memory */
+ map_size += sizeof(struct efi_mem_desc);
+ ret = boottime->allocate_pool(EFI_BOOT_SERVICES_DATA, map_size,
+ (void **)&memory_map);
+ if (ret != EFI_SUCCESS) {
+ efi_st_printf("ERROR: AllocatePool did not return "
+ "EFI_SUCCESS\n");
+ return;
+ }
+ ret = boottime->get_memory_map(&map_size, memory_map, &map_key,
+ &desc_size, &desc_version);
+ if (ret != EFI_SUCCESS) {
+ efi_st_printf("ERROR: GetMemoryMap did not return "
+ "EFI_SUCCESS\n");
+ return;
+ }
+ ret = boottime->exit_boot_services(handle, map_key);
+ if (ret != EFI_SUCCESS) {
+ efi_st_printf("ERROR: ExitBootServices did not return "
+ "EFI_SUCCESS\n");
+ return;
+ }
+ efi_st_printf("\nBoot services terminated\n");
+}
+
+/*
+ * Set up a test.
+ *
+ * @test the test to be executed
+ * @failures counter that will be incremented if a failure occurs
+ */
+static int setup(struct efi_unit_test *test, unsigned int *failures)
+{
+ int ret;
+
+ if (!test->setup)
+ return 0;
+ efi_st_printf("\nSetting up '%s'\n", test->name);
+ ret = test->setup(handle, systable);
+ if (ret) {
+ efi_st_printf("ERROR: Setting up '%s' failed\n", test->name);
+ ++*failures;
+ } else {
+ efi_st_printf("Setting up '%s' succeeded\n", test->name);
+ }
+ return ret;
+}
+
+/*
+ * Execute a test.
+ *
+ * @test the test to be executed
+ * @failures counter that will be incremented if a failure occurs
+ */
+static int execute(struct efi_unit_test *test, unsigned int *failures)
+{
+ int ret;
+
+ if (!test->execute)
+ return 0;
+ efi_st_printf("\nExecuting '%s'\n", test->name);
+ ret = test->execute();
+ if (ret) {
+ efi_st_printf("ERROR: Executing '%s' failed\n", test->name);
+ ++*failures;
+ } else {
+ efi_st_printf("Executing '%s' succeeded\n", test->name);
+ }
+ return ret;
+}
+
+/*
+ * Tear down a test.
+ *
+ * @test the test to be torn down
+ * @failures counter that will be incremented if a failure occurs
+ */
+static int teardown(struct efi_unit_test *test, unsigned int *failures)
+{
+ int ret;
+
+ if (!test->teardown)
+ return 0;
+ efi_st_printf("\nTearing down '%s'\n", test->name);
+ ret = test->teardown();
+ if (ret) {
+ efi_st_printf("ERROR: Tearing down '%s' failed\n", test->name);
+ ++*failures;
+ } else {
+ efi_st_printf("Tearing down '%s' succeeded\n", test->name);
+ }
+ return ret;
+}
+
+/*
+ * Execute selftest of the EFI API
+ *
+ * This is the main entry point of the EFI selftest application.
+ *
+ * All tests use a driver model and are run in three phases:
+ * setup, execute, teardown.
+ *
+ * A test may be setup and executed at boottime,
+ * it may be setup at boottime and executed at runtime,
+ * or it may be setup and executed at runtime.
+ *
+ * After executing all tests the system is reset.
+ *
+ * @image_handle: handle of the loaded EFI image
+ * @systab: EFI system table
+ */
+efi_status_t EFIAPI efi_selftest(efi_handle_t image_handle,
+ struct efi_system_table *systab)
+{
+ struct efi_unit_test *test;
+ unsigned int failures = 0;
+
+ systable = systab;
+ boottime = systable->boottime;
+ runtime = systable->runtime;
+ handle = image_handle;
+ con_out = systable->con_out;
+ con_in = systable->con_in;
+
+ efi_st_printf("\nTesting EFI API implementation\n");
+
+ efi_st_printf("\nNumber of tests to execute: %u\n",
+ ll_entry_count(struct efi_unit_test, efi_unit_test));
+
+ /* Execute boottime tests */
+ for (test = ll_entry_start(struct efi_unit_test, efi_unit_test);
+ test < ll_entry_end(struct efi_unit_test, efi_unit_test); ++test) {
+ if (test->phase == EFI_EXECUTE_BEFORE_BOOTTIME_EXIT) {
+ setup(test, &failures);
+ execute(test, &failures);
+ teardown(test, &failures);
+ }
+ }
+
+ /* Execute mixed tests */
+ for (test = ll_entry_start(struct efi_unit_test, efi_unit_test);
+ test < ll_entry_end(struct efi_unit_test, efi_unit_test); ++test) {
+ if (test->phase == EFI_SETUP_BEFORE_BOOTTIME_EXIT)
+ setup(test, &failures);
+ }
+
+ efi_st_exit_boot_services();
+
+ for (test = ll_entry_start(struct efi_unit_test, efi_unit_test);
+ test < ll_entry_end(struct efi_unit_test, efi_unit_test); ++test) {
+ if (test->phase == EFI_SETUP_BEFORE_BOOTTIME_EXIT) {
+ execute(test, &failures);
+ teardown(test, &failures);
+ }
+ }
+
+ /* Execute runtime tests */
+ for (test = ll_entry_start(struct efi_unit_test, efi_unit_test);
+ test < ll_entry_end(struct efi_unit_test, efi_unit_test); ++test) {
+ if (test->phase == EFI_SETUP_AFTER_BOOTTIME_EXIT) {
+ setup(test, &failures);
+ execute(test, &failures);
+ teardown(test, &failures);
+ }
+ }
+
+ /* Give feedback */
+ efi_st_printf("\nSummary: %u failures\n\n", failures);
+
+ /* Reset system */
+ efi_st_printf("Preparing for reset. Press any key.\n");
+ efi_st_get_key();
+ runtime->reset_system(EFI_RESET_WARM, EFI_NOT_READY,
+ sizeof(reset_message), reset_message);
+ efi_st_printf("\nERROR: reset failed.\n");
+
+ return EFI_UNSUPPORTED;
+}
--- /dev/null
+/*
+ * EFI efi_selftest
+ *
+ * Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <efi_selftest.h>
+#include <vsprintf.h>
+
+struct efi_simple_text_output_protocol *con_out;
+struct efi_simple_input_interface *con_in;
+
+/*
+ * Print a pointer to an u16 string
+ *
+ * @pointer: pointer
+ * @buf: pointer to buffer address
+ * on return position of terminating zero word
+ */
+static void pointer(void *pointer, u16 **buf)
+{
+ int i;
+ u16 c;
+ uintptr_t p = (uintptr_t)pointer;
+ u16 *pos = *buf;
+
+ for (i = 8 * sizeof(p) - 4; i >= 0; i -= 4) {
+ c = (p >> i) & 0x0f;
+ c += '0';
+ if (c > '9')
+ c += 'a' - '9' - 1;
+ *pos++ = c;
+ }
+ *pos = 0;
+ *buf = pos;
+}
+
+/*
+ * Print an unsigned 32bit value as decimal number to an u16 string
+ *
+ * @value: value to be printed
+ * @buf: pointer to buffer address
+ * on return position of terminating zero word
+ */
+static void uint2dec(u32 value, u16 **buf)
+{
+ u16 *pos = *buf;
+ int i;
+ u16 c;
+ u64 f;
+
+ /*
+ * Increment by .5 and multiply with
+ * (2 << 60) / 1,000,000,000 = 0x44B82FA0.9B5A52CC
+ * to move the first digit to bit 60-63.
+ */
+ f = 0x225C17D0;
+ f += (0x9B5A52DULL * value) >> 28;
+ f += 0x44B82FA0ULL * value;
+
+ for (i = 0; i < 10; ++i) {
+ /* Write current digit */
+ c = f >> 60;
+ if (c || pos != *buf)
+ *pos++ = c + '0';
+ /* Eliminate current digit */
+ f &= 0xfffffffffffffff;
+ /* Get next digit */
+ f *= 0xaULL;
+ }
+ if (pos == *buf)
+ *pos++ = '0';
+ *pos = 0;
+ *buf = pos;
+}
+
+/*
+ * Print a signed 32bit value as decimal number to an u16 string
+ *
+ * @value: value to be printed
+ * @buf: pointer to buffer address
+ * on return position of terminating zero word
+ */
+static void int2dec(s32 value, u16 **buf)
+{
+ u32 u;
+ u16 *pos = *buf;
+
+ if (value < 0) {
+ *pos++ = '-';
+ u = -value;
+ } else {
+ u = value;
+ }
+ uint2dec(u, &pos);
+ *buf = pos;
+}
+
+/*
+ * Print a formatted string to the EFI console
+ *
+ * @fmt: format string
+ * @...: optional arguments
+ */
+void efi_st_printf(const char *fmt, ...)
+{
+ va_list args;
+ u16 buf[160];
+ const char *c;
+ u16 *pos = buf;
+ const char *s;
+
+ va_start(args, fmt);
+
+ c = fmt;
+ for (; *c; ++c) {
+ switch (*c) {
+ case '\\':
+ ++c;
+ switch (*c) {
+ case '\0':
+ --c;
+ break;
+ case 'n':
+ *pos++ = '\n';
+ break;
+ case 'r':
+ *pos++ = '\r';
+ break;
+ case 't':
+ *pos++ = '\t';
+ break;
+ default:
+ *pos++ = *c;
+ }
+ break;
+ case '%':
+ ++c;
+ switch (*c) {
+ case '\0':
+ --c;
+ break;
+ case 'd':
+ int2dec(va_arg(args, s32), &pos);
+ break;
+ case 'p':
+ pointer(va_arg(args, void*), &pos);
+ break;
+ case 's':
+ s = va_arg(args, const char *);
+ for (; *s; ++s)
+ *pos++ = *s;
+ break;
+ case 'u':
+ uint2dec(va_arg(args, u32), &pos);
+ break;
+ default:
+ break;
+ }
+ break;
+ default:
+ *pos++ = *c;
+ }
+ }
+ va_end(args);
+ *pos = 0;
+ con_out->output_string(con_out, buf);
+}
+
+/*
+ * Reads an Unicode character from the input device.
+ *
+ * @return: Unicode character
+ */
+u16 efi_st_get_key(void)
+{
+ struct efi_input_key input_key;
+ efi_status_t ret;
+
+ /* Wait for next key */
+ do {
+ ret = con_in->read_key_stroke(con_in, &input_key);
+ } while (ret == EFI_NOT_READY);
+ return input_key.unicode_char;
+}
--- /dev/null
+/*
+ * efi_selftest_events
+ *
+ * Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ * This unit test uses timer events to check the implementation
+ * of the following boottime services:
+ * CreateEvent, CloseEvent, WaitForEvent, CheckEvent, SetTimer.
+ */
+
+#include <efi_selftest.h>
+
+static struct efi_event *event_notify;
+static struct efi_event *event_wait;
+static unsigned int counter;
+static struct efi_boot_services *boottime;
+
+/*
+ * Notification function, increments a counter.
+ *
+ * @event notified event
+ * @context pointer to the counter
+ */
+static void EFIAPI notify(struct efi_event *event, void *context)
+{
+ if (!context)
+ return;
+ ++*(unsigned int *)context;
+}
+
+/*
+ * Setup unit test.
+ *
+ * Create two timer events.
+ * One with EVT_NOTIFY_SIGNAL, the other with EVT_NOTIFY_WAIT.
+ *
+ * @handle: handle of the loaded image
+ * @systable: system table
+ */
+static int setup(const efi_handle_t handle,
+ const struct efi_system_table *systable)
+{
+ efi_status_t ret;
+
+ boottime = systable->boottime;
+
+ ret = boottime->create_event(EVT_TIMER | EVT_NOTIFY_SIGNAL,
+ TPL_CALLBACK, notify, (void *)&counter,
+ &event_notify);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("could not create event\n");
+ return 1;
+ }
+ ret = boottime->create_event(EVT_TIMER | EVT_NOTIFY_WAIT,
+ TPL_CALLBACK, notify, NULL, &event_wait);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("could not create event\n");
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * Tear down unit test.
+ *
+ * Close the events created in setup.
+ */
+static int teardown(void)
+{
+ efi_status_t ret;
+
+ if (event_notify) {
+ ret = boottime->close_event(event_notify);
+ event_notify = NULL;
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("could not close event\n");
+ return 1;
+ }
+ }
+ if (event_wait) {
+ ret = boottime->close_event(event_wait);
+ event_wait = NULL;
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("could not close event\n");
+ return 1;
+ }
+ }
+ return 0;
+}
+
+/*
+ * Execute unit test.
+ *
+ * Run a 10 ms periodic timer and check that it is called 10 times
+ * while waiting for 100 ms single shot timer.
+ *
+ * Run a 100 ms single shot timer and check that it is called once
+ * while waiting for 100 ms periodic timer for two periods.
+ */
+static int execute(void)
+{
+ unsigned long index;
+ efi_status_t ret;
+
+ /* Set 10 ms timer */
+ counter = 0;
+ ret = boottime->set_timer(event_notify, EFI_TIMER_PERIODIC, 100000);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("Could not set timer\n");
+ return 1;
+ }
+ /* Set 100 ms timer */
+ ret = boottime->set_timer(event_wait, EFI_TIMER_RELATIVE, 1000000);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("Could not set timer\n");
+ return 1;
+ }
+
+ index = 5;
+ ret = boottime->wait_for_event(1, &event_wait, &index);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("Could not wait for event\n");
+ return 1;
+ }
+ ret = boottime->check_event(event_wait);
+ if (ret != EFI_NOT_READY) {
+ efi_st_error("Signaled state was not cleared.\n");
+ efi_st_printf("ret = %u\n", (unsigned int)ret);
+ return 1;
+ }
+ if (index != 0) {
+ efi_st_error("WaitForEvent returned wrong index\n");
+ return 1;
+ }
+ efi_st_printf("Counter periodic: %u\n", counter);
+ if (counter < 8 || counter > 12) {
+ efi_st_error("Incorrect timing of events\n");
+ return 1;
+ }
+ ret = boottime->set_timer(event_notify, EFI_TIMER_STOP, 0);
+ if (index != 0) {
+ efi_st_error("Could not cancel timer\n");
+ return 1;
+ }
+ /* Set 10 ms timer */
+ counter = 0;
+ ret = boottime->set_timer(event_notify, EFI_TIMER_RELATIVE, 100000);
+ if (index != 0) {
+ efi_st_error("Could not set timer\n");
+ return 1;
+ }
+ /* Set 100 ms timer */
+ ret = boottime->set_timer(event_wait, EFI_TIMER_PERIODIC, 1000000);
+ if (index != 0) {
+ efi_st_error("Could not set timer\n");
+ return 1;
+ }
+ ret = boottime->wait_for_event(1, &event_wait, &index);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("Could not wait for event\n");
+ return 1;
+ }
+ efi_st_printf("Counter single shot: %u\n", counter);
+ if (counter != 1) {
+ efi_st_error("Single shot timer failed\n");
+ return 1;
+ }
+ ret = boottime->wait_for_event(1, &event_wait, &index);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("Could not wait for event\n");
+ return 1;
+ }
+ efi_st_printf("Stopped counter: %u\n", counter);
+ if (counter != 1) {
+ efi_st_error("Stopped timer fired\n");
+ return 1;
+ }
+ ret = boottime->set_timer(event_wait, EFI_TIMER_STOP, 0);
+ if (index != 0) {
+ efi_st_error("Could not cancel timer\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+EFI_UNIT_TEST(events) = {
+ .name = "event services",
+ .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
+ .setup = setup,
+ .execute = execute,
+ .teardown = teardown,
+};
--- /dev/null
+/*
+ * efi_selftest_events
+ *
+ * Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ * This unit test checks that the notification function of an
+ * EVT_SIGNAL_EXIT_BOOT_SERVICES event is called exactly once.
+ */
+
+#include <efi_selftest.h>
+
+static struct efi_boot_services *boottime;
+static struct efi_event *event_notify;
+static unsigned int counter;
+
+/*
+ * Notification function, increments a counter.
+ *
+ * @event notified event
+ * @context pointer to the counter
+ */
+static void EFIAPI notify(struct efi_event *event, void *context)
+{
+ if (!context)
+ return;
+ ++*(unsigned int *)context;
+}
+
+/*
+ * Setup unit test.
+ *
+ * Create an EVT_SIGNAL_EXIT_BOOT_SERVICES event.
+ *
+ * @handle: handle of the loaded image
+ * @systable: system table
+ */
+static int setup(const efi_handle_t handle,
+ const struct efi_system_table *systable)
+{
+ efi_status_t ret;
+
+ boottime = systable->boottime;
+
+ counter = 0;
+ ret = boottime->create_event(EVT_SIGNAL_EXIT_BOOT_SERVICES,
+ TPL_CALLBACK, notify, (void *)&counter,
+ &event_notify);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("could not create event\n");
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * Tear down unit test.
+ *
+ * Close the event created in setup.
+ */
+static int teardown(void)
+{
+ efi_status_t ret;
+
+ if (event_notify) {
+ ret = boottime->close_event(event_notify);
+ event_notify = NULL;
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("could not close event\n");
+ return 1;
+ }
+ }
+ return 0;
+}
+
+/*
+ * Execute unit test.
+ *
+ * Check that the notification function of the EVT_SIGNAL_EXIT_BOOT_SERVICES
+ * event has been called.
+ *
+ * Call ExitBootServices again and check that the notification function is
+ * not called again.
+ */
+static int execute(void)
+{
+ if (counter != 1) {
+ efi_st_error("ExitBootServices was not notified");
+ return 1;
+ }
+ efi_st_exit_boot_services();
+ if (counter != 1) {
+ efi_st_error("ExitBootServices was notified twice");
+ return 1;
+ }
+ return 0;
+}
+
+EFI_UNIT_TEST(exitbootservices) = {
+ .name = "ExitBootServices",
+ .phase = EFI_SETUP_BEFORE_BOOTTIME_EXIT,
+ .setup = setup,
+ .execute = execute,
+ .teardown = teardown,
+};
--- /dev/null
+/*
+ * efi_selftest_events
+ *
+ * Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ *
+ * This unit test uses timer events to check the handling of
+ * task priority levels.
+ */
+
+#include <efi_selftest.h>
+
+static struct efi_event *event_notify;
+static struct efi_event *event_wait;
+static unsigned int counter;
+static struct efi_boot_services *boottime;
+
+/*
+ * Notification function, increments a counter.
+ *
+ * @event notified event
+ * @context pointer to the counter
+ */
+static void EFIAPI notify(struct efi_event *event, void *context)
+{
+ if (!context)
+ return;
+ ++*(unsigned int *)context;
+}
+
+/*
+ * Setup unit test.
+ *
+ * Create two timer events.
+ * One with EVT_NOTIFY_SIGNAL, the other with EVT_NOTIFY_WAIT.
+ *
+ * @handle: handle of the loaded image
+ * @systable: system table
+ */
+static int setup(const efi_handle_t handle,
+ const struct efi_system_table *systable)
+{
+ efi_status_t ret;
+
+ boottime = systable->boottime;
+
+ ret = boottime->create_event(EVT_TIMER | EVT_NOTIFY_SIGNAL,
+ TPL_CALLBACK, notify, (void *)&counter,
+ &event_notify);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("could not create event\n");
+ return 1;
+ }
+ ret = boottime->create_event(EVT_TIMER | EVT_NOTIFY_WAIT,
+ TPL_HIGH_LEVEL, notify, NULL, &event_wait);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("could not create event\n");
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ * Tear down unit test.
+ *
+ * Close the events created in setup.
+ */
+static int teardown(void)
+{
+ efi_status_t ret;
+
+ if (event_notify) {
+ ret = boottime->close_event(event_notify);
+ event_notify = NULL;
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("could not close event\n");
+ return 1;
+ }
+ }
+ if (event_wait) {
+ ret = boottime->close_event(event_wait);
+ event_wait = NULL;
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("could not close event\n");
+ return 1;
+ }
+ }
+ boottime->restore_tpl(TPL_APPLICATION);
+ return 0;
+}
+
+/*
+ * Execute unit test.
+ *
+ * Run a 10 ms periodic timer and check that it is called 10 times
+ * while waiting for 100 ms single shot timer.
+ *
+ * Raise the TPL level to the level of the 10 ms timer and observe
+ * that the notification function is not called again.
+ *
+ * Lower the TPL level and check that the queued notification
+ * function is called.
+ */
+static int execute(void)
+{
+ unsigned long index;
+ efi_status_t ret;
+ UINTN old_tpl;
+
+ /* Set 10 ms timer */
+ counter = 0;
+ ret = boottime->set_timer(event_notify, EFI_TIMER_PERIODIC, 100000);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("Could not set timer\n");
+ return 1;
+ }
+ /* Set 100 ms timer */
+ ret = boottime->set_timer(event_wait, EFI_TIMER_RELATIVE, 1000000);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("Could not set timer\n");
+ return 1;
+ }
+ index = 5;
+ ret = boottime->wait_for_event(1, &event_wait, &index);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("Could not wait for event\n");
+ return 1;
+ }
+ ret = boottime->check_event(event_wait);
+ if (ret != EFI_NOT_READY) {
+ efi_st_error("Signaled state was not cleared.\n");
+ efi_st_printf("ret = %u\n", (unsigned int)ret);
+ return 1;
+ }
+ if (index != 0) {
+ efi_st_error("WaitForEvent returned wrong index\n");
+ return 1;
+ }
+ efi_st_printf("Counter with TPL level TPL_APPLICATION: %u\n", counter);
+ if (counter < 8 || counter > 12) {
+ efi_st_error("Incorrect timing of events\n");
+ return 1;
+ }
+ ret = boottime->set_timer(event_notify, EFI_TIMER_STOP, 0);
+ if (index != 0) {
+ efi_st_error("Could not cancel timer\n");
+ return 1;
+ }
+ /* Raise TPL level */
+ old_tpl = boottime->raise_tpl(TPL_CALLBACK);
+ if (old_tpl != TPL_APPLICATION) {
+ efi_st_error("Initial TPL level was not TPL_APPLICATION");
+ return 1;
+ }
+ /* Set 10 ms timer */
+ counter = 0;
+ ret = boottime->set_timer(event_notify, EFI_TIMER_PERIODIC, 100000);
+ if (index != 0) {
+ efi_st_error("Could not set timer\n");
+ return 1;
+ }
+ /* Set 100 ms timer */
+ ret = boottime->set_timer(event_wait, EFI_TIMER_RELATIVE, 1000000);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("Could not set timer\n");
+ return 1;
+ }
+ do {
+ ret = boottime->check_event(event_wait);
+ } while (ret == EFI_NOT_READY);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("Could not check event\n");
+ return 1;
+ }
+ efi_st_printf("Counter with TPL level TPL_CALLBACK: %u\n", counter);
+ if (counter != 0) {
+ efi_st_error("Suppressed timer fired\n");
+ return 1;
+ }
+ /* Set 1 ms timer */
+ ret = boottime->set_timer(event_wait, EFI_TIMER_RELATIVE, 1000);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("Could not set timer\n");
+ return 1;
+ }
+ /* Restore the old TPL level */
+ boottime->restore_tpl(TPL_APPLICATION);
+ ret = boottime->wait_for_event(1, &event_wait, &index);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("Could not wait for event\n");
+ return 1;
+ }
+ efi_st_printf("Counter with TPL level TPL_APPLICATION: %u\n", counter);
+ if (counter < 1) {
+ efi_st_error("Queued timer event did not fire\n");
+ return 1;
+ }
+ ret = boottime->set_timer(event_wait, EFI_TIMER_STOP, 0);
+ if (index != 0) {
+ efi_st_error("Could not cancel timer\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+EFI_UNIT_TEST(tpl) = {
+ .name = "task priority levels",
+ .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
+ .setup = setup,
+ .execute = execute,
+ .teardown = teardown,
+};
$(obj)/%.S: $(src)/%.ttf
$(call cmd,S_ttf)
-# EFI Hello World application
+# EFI applications
+# A Makefile target *.efi is built as EFI application.
+# A Makefile target *_efi.S wraps *.efi as built-in EFI application.
# ---------------------------------------------------------------------------
# Generate an assembly file to wrap the EFI app
-cmd_S_efi= \
-( \
- echo '.section .rodata.efi.init,"a"'; \
- echo '.balign 16'; \
- echo '.global __efi_hello_world_begin'; \
- echo '__efi_hello_world_begin:'; \
- echo '.incbin "$<" '; \
- echo '__efi_hello_world_end:'; \
- echo '.global __efi_hello_world_end'; \
- echo '.balign 16'; \
+cmd_S_efi= \
+( \
+ echo '.section .rodata.$*.init,"a"'; \
+ echo '.balign 16'; \
+ echo '.global __efi_$*_begin'; \
+ echo '__efi_$*_begin:'; \
+ echo '.incbin "$<" '; \
+ echo '__efi_$*_end:'; \
+ echo '.global __efi_$*_end'; \
+ echo '.balign 16'; \
) > $@
$(obj)/%_efi.S: $(obj)/%.efi
.dynamic -j .dynsym -j .rel* -j .rela* -j .reloc \
$(if $(EFI_TARGET),$(EFI_TARGET),-O binary) $^ $@
-$(obj)/%.efi: $(obj)/%.so
+$(obj)/%.efi: $(obj)/%_efi.so
$(call cmd,efi_objcopy)
quiet_cmd_efi_ld = LD $@
EFI_LDS_PATH = $(srctree)/arch/$(ARCH)/lib/$(EFI_LDS)
-$(obj)/helloworld.so: $(EFI_LDS_PATH)
-
-$(obj)/helloworld.so: $(obj)/helloworld.o arch/$(ARCH)/lib/$(EFI_CRT0) \
+$(obj)/%_efi.so: $(obj)/%.o arch/$(ARCH)/lib/$(EFI_CRT0) \
arch/$(ARCH)/lib/$(EFI_RELOC)
$(call cmd,efi_ld)
--- /dev/null
+# Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
+# Copyright (c) 2017, Heinrich Schuchardt <xypron.glpk@gmx.de>
+#
+# SPDX-License-Identifier: GPL-2.0
+
+# Test efi API implementation
+
+import pytest
+import u_boot_utils
+
+@pytest.mark.buildconfigspec('cmd_bootefi_selftest')
+def test_efi_selftest(u_boot_console):
+ """
+ Run bootefi selftest
+ """
+
+ u_boot_console.run_command(cmd='bootefi selftest', wait_for_prompt=False)
+ m = u_boot_console.p.expect(['Summary: 0 failures', 'Press any key'])
+ if m != 0:
+ raise Exception('Failures occured during the EFI selftest')
+ u_boot_console.run_command(cmd='', wait_for_echo=False, wait_for_prompt=False);
+ m = u_boot_console.p.expect(['resetting', 'U-Boot'])
+ if m != 0:
+ raise Exception('Reset failed during the EFI selftest')
+ u_boot_console.restart_uboot();
projects / people / ms / u-boot.git / commitdiff
