diff options
Diffstat (limited to 'roms/u-boot/lib/efi_selftest/efi_selftest_exception.c')
-rw-r--r-- | roms/u-boot/lib/efi_selftest/efi_selftest_exception.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/roms/u-boot/lib/efi_selftest/efi_selftest_exception.c b/roms/u-boot/lib/efi_selftest/efi_selftest_exception.c new file mode 100644 index 000000000..6e900a35d --- /dev/null +++ b/roms/u-boot/lib/efi_selftest/efi_selftest_exception.c @@ -0,0 +1,147 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * efi_selftest_exception + * + * Copyright (c) 2019 Heinrich Schuchardt <xypron.glpk@gmx.de> + * + * This test checks the handling of exceptions. + * + * The efi_selftest_miniapp_exception.efi application is loaded into memory + * and started. + */ + +#include <efi_selftest.h> +/* Include containing the UEFI application */ +#include "efi_miniapp_file_image_exception.h" + +/* Block size of compressed disk image */ +#define COMPRESSED_DISK_IMAGE_BLOCK_SIZE 8 + +/* Binary logarithm of the block size */ +#define LB_BLOCK_SIZE 9 + +/* File device path for LoadImage() */ +static struct { + struct efi_device_path dp; + u16 filename[8]; + struct efi_device_path end; +} dp = { + { + DEVICE_PATH_TYPE_MEDIA_DEVICE, + DEVICE_PATH_SUB_TYPE_FILE_PATH, + sizeof(dp.dp) + sizeof(dp.filename), + }, + L"bug.efi", + { + DEVICE_PATH_TYPE_END, + DEVICE_PATH_SUB_TYPE_END, + sizeof(dp.end), + } +}; + +static efi_handle_t image_handle; +static struct efi_boot_services *boottime; + +/* One 8 byte block of the compressed disk image */ +struct line { + size_t addr; + char *line; +}; + +/* Compressed file image */ +struct compressed_file_image { + size_t length; + struct line lines[]; +}; + +static struct compressed_file_image img = EFI_ST_DISK_IMG; + +/* Decompressed file image */ +static u8 *image; + +/* + * Decompress the disk image. + * + * @image decompressed disk image + * @return status code + */ +static efi_status_t decompress(u8 **image) +{ + u8 *buf; + size_t i; + size_t addr; + size_t len; + efi_status_t ret; + + ret = boottime->allocate_pool(EFI_LOADER_DATA, img.length, + (void **)&buf); + if (ret != EFI_SUCCESS) { + efi_st_error("Out of memory\n"); + return ret; + } + boottime->set_mem(buf, img.length, 0); + + for (i = 0; ; ++i) { + if (!img.lines[i].line) + break; + addr = img.lines[i].addr; + len = COMPRESSED_DISK_IMAGE_BLOCK_SIZE; + if (addr + len > img.length) + len = img.length - addr; + boottime->copy_mem(buf + addr, img.lines[i].line, len); + } + *image = buf; + return ret; +} + +/* + * Setup unit test. + * + * @handle: handle of the loaded image + * @systable: system table + * @return: EFI_ST_SUCCESS for success + */ +static int setup(const efi_handle_t handle, + const struct efi_system_table *systable) +{ + image_handle = handle; + boottime = systable->boottime; + + /* Load the application image into memory */ + decompress(&image); + + return EFI_ST_SUCCESS; +} + +/* + * Execute unit test. + * + * Load and start the application image. + * + * @return: EFI_ST_SUCCESS for success + */ +static int execute(void) +{ + efi_status_t ret; + efi_handle_t handle; + + ret = boottime->load_image(false, image_handle, &dp.dp, image, + img.length, &handle); + if (ret != EFI_SUCCESS) { + efi_st_error("Failed to load image\n"); + return EFI_ST_FAILURE; + } + ret = boottime->start_image(handle, NULL, NULL); + + efi_st_error("Exception not triggered\n"); + + return EFI_ST_FAILURE; +} + +EFI_UNIT_TEST(exception) = { + .name = "exception", + .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT, + .setup = setup, + .execute = execute, + .on_request = true, +}; |