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[110.66.77.154]) by smtp.gmail.com with ESMTPSA id p10sm19578759pgn.6.2020.07.21.23.06.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Jul 2020 23:06:43 -0700 (PDT) From: AKASHI Takahiro To: lukma@denx.de, trini@konsulko.com, xypron.glpk@gmx.de, agraf@csgraf.de Cc: sughosh.ganu@linaro.org, u-boot@lists.denx.de, AKASHI Takahiro Subject: [PATCH v4 10/16] efi_loader: add firmware management protocol for FIT image Date: Wed, 22 Jul 2020 15:05:33 +0900 Message-Id: <20200722060539.15168-11-takahiro.akashi@linaro.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200722060539.15168-1-takahiro.akashi@linaro.org> References: <20200722060539.15168-1-takahiro.akashi@linaro.org> MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.102.3 at phobos.denx.de X-Virus-Status: Clean In this commit, a very simple firmware management protocol driver is implemented. It will take a common FIT image firmware in a capsule file and apply the data using dfu backend storage drivers via update_fit() interface. So "dfu_alt_info" variable should be properly set to specify a device and location to be updated. Please read README.dfu. Fit image is a common file format for firmware update on U-Boot, and this protocol works neatly just as a wrapper for one. Signed-off-by: AKASHI Takahiro --- include/efi_api.h | 4 + include/efi_loader.h | 2 + lib/efi_loader/Kconfig | 11 ++ lib/efi_loader/Makefile | 1 + lib/efi_loader/efi_capsule.c | 12 +- lib/efi_loader/efi_firmware.c | 291 ++++++++++++++++++++++++++++++++++ 6 files changed, 320 insertions(+), 1 deletion(-) create mode 100644 lib/efi_loader/efi_firmware.c -- 2.27.0 diff --git a/include/efi_api.h b/include/efi_api.h index db51c1e0dc9f..4e9e65189e4d 100644 --- a/include/efi_api.h +++ b/include/efi_api.h @@ -1845,6 +1845,10 @@ struct efi_signature_list { EFI_GUID(0x86c77a67, 0x0b97, 0x4633, 0xa1, 0x87, \ 0x49, 0x10, 0x4d, 0x06, 0x85, 0xc7) +#define EFI_FIRMWARE_IMAGE_TYPE_UBOOT_FIT_GUID \ + EFI_GUID(0xae13ff2d, 0x9ad4, 0x4e25, 0x9a, 0xc8, \ + 0x6d, 0x80, 0xb3, 0xb2, 0x21, 0x47) + #define EFI_IMAGE_ATTRIBUTE_IMAGE_UPDATABLE 0x1 #define EFI_IMAGE_ATTRIBUTE_RESET_REQUIRED 0x2 #define EFI_IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED 0x4 diff --git a/include/efi_loader.h b/include/efi_loader.h index a6c278dd0336..f6c09b45db28 100644 --- a/include/efi_loader.h +++ b/include/efi_loader.h @@ -799,6 +799,8 @@ bool efi_image_parse(void *efi, size_t len, struct efi_image_regions **regp, /* runtime implementation of memcpy() */ void efi_memcpy_runtime(void *dest, const void *src, size_t n); +extern const struct efi_firmware_management_protocol efi_fmp_fit; + /* Capsule update */ efi_status_t EFIAPI efi_update_capsule( struct efi_capsule_header **capsule_header_array, diff --git a/lib/efi_loader/Kconfig b/lib/efi_loader/Kconfig index 98bbf6d4ca27..bc12f0afb4aa 100644 --- a/lib/efi_loader/Kconfig +++ b/lib/efi_loader/Kconfig @@ -134,6 +134,17 @@ config EFI_CAPSULE_FIRMWARE_MANAGEMENT Select this option if you want to enable capsule-based firmware update using Firmware Management Protocol. +config EFI_CAPSULE_FIRMWARE_FIT + bool "FMP driver for FIT image" + depends on EFI_CAPSULE_FIRMWARE_MANAGEMENT + depends on FIT + select UPDATE_FIT + select DFU + default n + help + Select this option if you want to enable firmware management protocol + driver for FIT image + config EFI_DEVICE_PATH_TO_TEXT bool "Device path to text protocol" default y diff --git a/lib/efi_loader/Makefile b/lib/efi_loader/Makefile index 54de0fe51b94..095b805d1fe8 100644 --- a/lib/efi_loader/Makefile +++ b/lib/efi_loader/Makefile @@ -24,6 +24,7 @@ obj-$(CONFIG_CMD_BOOTEFI_HELLO) += helloworld_efi.o obj-y += efi_bootmgr.o obj-y += efi_boottime.o obj-$(CONFIG_EFI_HAVE_CAPSULE_SUPPORT) += efi_capsule.o +obj-$(CONFIG_EFI_CAPSULE_FIRMWARE_FIT) += efi_firmware.o obj-y += efi_console.o obj-y += efi_device_path.o obj-$(CONFIG_EFI_DEVICE_PATH_TO_TEXT) += efi_device_path_to_text.o diff --git a/lib/efi_loader/efi_capsule.c b/lib/efi_loader/efi_capsule.c index 22d15bc4d8cd..c2cd1d23f9ce 100644 --- a/lib/efi_loader/efi_capsule.c +++ b/lib/efi_loader/efi_capsule.c @@ -801,7 +801,17 @@ static void efi_capsule_scan_done(void) */ efi_status_t __weak arch_efi_load_capsule_drivers(void) { - return EFI_SUCCESS; + __maybe_unused efi_handle_t handle; + efi_status_t ret = EFI_SUCCESS; + + if (IS_ENABLED(CONFIG_EFI_CAPSULE_FIRMWARE_FIT)) { + handle = NULL; + ret = EFI_CALL(efi_install_multiple_protocol_interfaces( + &handle, &efi_guid_firmware_management_protocol, + &efi_fmp_fit, NULL)); + } + + return ret; } /** diff --git a/lib/efi_loader/efi_firmware.c b/lib/efi_loader/efi_firmware.c new file mode 100644 index 000000000000..ee98ba683fc5 --- /dev/null +++ b/lib/efi_loader/efi_firmware.c @@ -0,0 +1,291 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * EFI Firmware management protocol + * + * Copyright (c) 2020 Linaro Limited + * Author: AKASHI Takahiro + */ + +#include +#include +#include +#include +#include +#include + +/* + * This FIRMWARE_MANAGEMENT_PROTOCOL driver provides a firmware update + * method with existing FIT image format, and handles + * - multiple regions of firmware via DFU + * but doesn't support + * - versioning of firmware image + * - package information + */ +const efi_guid_t efi_firmware_image_type_uboot_fit = + EFI_FIRMWARE_IMAGE_TYPE_UBOOT_FIT_GUID; + +/** + * efi_get_dfu_info - return information about the current firmware image + * @this: Protocol instance + * @image_info_size: Size of @image_info + * @image_info: Image information + * @descriptor_version: Pointer to version number + * @descriptor_count: Pointer to number of descriptors + * @descriptor_size: Pointer to descriptor size + * package_version: Package version + * package_version_name: Package version's name + * image_type: Image type GUID + * + * Return information bout the current firmware image in @image_info. + * @image_info will consist of a number of descriptors. + * Each descriptor will be created based on "dfu_alt_info" variable. + * + * Return status code + */ +static efi_status_t efi_get_dfu_info( + efi_uintn_t *image_info_size, + struct efi_firmware_image_descriptor *image_info, + u32 *descriptor_version, + u8 *descriptor_count, + efi_uintn_t *descriptor_size, + u32 *package_version, + u16 **package_version_name, + const efi_guid_t *image_type) +{ + struct dfu_entity *dfu; + size_t names_len, total_size; + int dfu_num, i; + u16 *name, *next; + + dfu_init_env_entities(NULL, NULL); + + names_len = 0; + dfu_num = 0; + list_for_each_entry(dfu, &dfu_list, list) { + names_len += (utf8_utf16_strlen(dfu->name) + 1) * 2; + dfu_num++; + } + if (!dfu_num) { + EFI_PRINT("Probably dfu_alt_info not defined\n"); + *image_info_size = 0; + dfu_free_entities(); + + return EFI_SUCCESS; + } + + total_size = sizeof(*image_info) * dfu_num + names_len; + /* + * we will assume that sizeof(*image_info) * dfu_name + * is, at least, a multiple of 2. So the start address for + * image_id_name would be aligned with 2 bytes. + */ + if (*image_info_size < total_size) { + *image_info_size = total_size; + dfu_free_entities(); + + return EFI_BUFFER_TOO_SMALL; + } + *image_info_size = total_size; + + if (descriptor_version) + *descriptor_version = EFI_FIRMWARE_IMAGE_DESCRIPTOR_VERSION; + if (descriptor_count) + *descriptor_count = dfu_num; + if (descriptor_size) + *descriptor_size = sizeof(*image_info); + if (package_version) + *package_version = 0xffffffff; /* not supported */ + if (package_version_name) + *package_version_name = NULL; /* not supported */ + + /* DFU alt number should correspond to image_index */ + i = 0; + /* Name area starts just after descriptors */ + name = (u16 *)((u8 *)image_info + sizeof(*image_info) * dfu_num); + next = name; + list_for_each_entry(dfu, &dfu_list, list) { + image_info[i].image_index = dfu->alt + 1; + image_info[i].image_type_id = *image_type; + image_info[i].image_id = dfu->alt; + + /* copy the DFU entity name */ + utf8_utf16_strcpy(&next, dfu->name); + image_info[i].image_id_name = name; + name = ++next; + + image_info[i].version = 0; /* not supported */ + image_info[i].version_name = NULL; /* not supported */ + image_info[i].size = 0; + image_info[i].attributes_supported = + EFI_IMAGE_ATTRIBUTE_IMAGE_UPDATABLE; + image_info[i].attributes_setting = + EFI_IMAGE_ATTRIBUTE_IMAGE_UPDATABLE; + image_info[i].lowest_supported_image_version = 0; + image_info[i].last_attempt_version = 0; + image_info[i].last_attempt_status = LAST_ATTEMPT_STATUS_SUCCESS; + image_info[i].hardware_instance = 1; + image_info[i].dependencies = NULL; + + i++; + } + + dfu_free_entities(); + + return EFI_SUCCESS; +} + +/** + * efi_firmware_fit_get_image_info - return information about the current + * firmware image + * @this: Protocol instance + * @image_info_size: Size of @image_info + * @image_info: Image information + * @descriptor_version: Pointer to version number + * @descriptor_count: Pointer to number of descriptors + * @descriptor_size: Pointer to descriptor size + * package_version: Package version + * package_version_name: Package version's name + * + * Return information bout the current firmware image in @image_info. + * @image_info will consist of a number of descriptors. + * Each descriptor will be created based on "dfu_alt_info" variable. + * + * Return status code + */ +static +efi_status_t EFIAPI efi_firmware_fit_get_image_info( + struct efi_firmware_management_protocol *this, + efi_uintn_t *image_info_size, + struct efi_firmware_image_descriptor *image_info, + u32 *descriptor_version, + u8 *descriptor_count, + efi_uintn_t *descriptor_size, + u32 *package_version, + u16 **package_version_name) +{ + efi_status_t ret; + + EFI_ENTRY("%p %p %p %p %p %p %p %p\n", this, + image_info_size, image_info, + descriptor_version, descriptor_count, descriptor_size, + package_version, package_version_name); + + if (!image_info_size || (*image_info_size && !image_info)) + return EFI_EXIT(EFI_INVALID_PARAMETER); + + ret = efi_get_dfu_info(image_info_size, image_info, + descriptor_version, descriptor_count, + descriptor_size, + package_version, package_version_name, + &efi_firmware_image_type_uboot_fit); + + return EFI_EXIT(ret); +} + +/* Place holder; not supported */ +static +efi_status_t EFIAPI efi_firmware_get_image_unsupported( + struct efi_firmware_management_protocol *this, + u8 image_index, + void *image, + efi_uintn_t *image_size) +{ + EFI_ENTRY("%p %d %p %p\n", this, image_index, image, image_size); + + return EFI_EXIT(EFI_UNSUPPORTED); +} + +/** + * efi_firmware_fit_set_image - update the firmware image + * @this: Protocol instance + * @image_index: Image index number + * @image: New image + * @image_size: Size of new image + * @vendor_code: Vendor-specific update policy + * @progress: Function to report the progress of update + * @abort_reason: Pointer to string of abort reason + * + * Update the firmware to new image, using dfu. The new image should + * have FIT image format commonly used in U-Boot. + * @vendor_code, @progress and @abort_reason are not supported. + * + * Return: status code + */ +static +efi_status_t EFIAPI efi_firmware_fit_set_image( + struct efi_firmware_management_protocol *this, + u8 image_index, + const void *image, + efi_uintn_t image_size, + const void *vendor_code, + efi_status_t (*progress)(efi_uintn_t completion), + u16 **abort_reason) +{ + EFI_ENTRY("%p %d %p %ld %p %p %p\n", this, image_index, image, + image_size, vendor_code, progress, abort_reason); + + if (!image || image_index != 1) + return EFI_EXIT(EFI_INVALID_PARAMETER); + + if (fit_update(image)) + return EFI_EXIT(EFI_DEVICE_ERROR); + + return EFI_EXIT(EFI_SUCCESS); +} + +/* Place holder; not supported */ +static +efi_status_t EFIAPI efi_firmware_check_image_unsupported( + struct efi_firmware_management_protocol *this, + u8 image_index, + const void *image, + efi_uintn_t *image_size, + u32 *image_updatable) +{ + EFI_ENTRY("%p %d %p %p %p\n", this, image_index, image, image_size, + image_updatable); + + return EFI_EXIT(EFI_UNSUPPORTED); +} + +/* Place holder; not supported */ +static +efi_status_t EFIAPI efi_firmware_get_package_info_unsupported( + struct efi_firmware_management_protocol *this, + u32 *package_version, + u16 **package_version_name, + u32 *package_version_name_maxlen, + u64 *attributes_supported, + u64 *attributes_setting) +{ + EFI_ENTRY("%p %p %p %p %p %p\n", this, package_version, + package_version_name, package_version_name_maxlen, + attributes_supported, attributes_setting); + + return EFI_EXIT(EFI_UNSUPPORTED); +} + +/* Place holder; not supported */ +static +efi_status_t EFIAPI efi_firmware_set_package_info_unsupported( + struct efi_firmware_management_protocol *this, + const void *image, + efi_uintn_t *image_size, + const void *vendor_code, + u32 package_version, + const u16 *package_version_name) +{ + EFI_ENTRY("%p %p %p %p %x %p\n", this, image, image_size, vendor_code, + package_version, package_version_name); + + return EFI_EXIT(EFI_UNSUPPORTED); +} + +const struct efi_firmware_management_protocol efi_fmp_fit = { + .get_image_info = efi_firmware_fit_get_image_info, + .get_image = efi_firmware_get_image_unsupported, + .set_image = efi_firmware_fit_set_image, + .check_image = efi_firmware_check_image_unsupported, + .get_package_info = efi_firmware_get_package_info_unsupported, + .set_package_info = efi_firmware_set_package_info_unsupported, +};