a48a8929de
Most of these utility functions are useful for the app, so move them into the common directory. Move the GUIDs used by this file from their various other location, so they are available to the app, even if it doesn't enabled EFI_LOADER Fix the rather large number of checkpath warnings in this file, except for the lwip one, best left to the maintainer to sort out. One noteable change is adding a return value to dp_fill() for the case where an option is not enabled but its uclass is referenced. This presuambly never happens during execution, since if the uclass is not supported there can be no device in that uclass and therefore nothing will ever request its path. So just handle this like an invalid device. Signed-off-by: Simon Glass <sjg@chromium.org>
89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Root node for system services
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*
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* Copyright (c) 2018 Heinrich Schuchardt
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*/
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#define LOG_CATEGORY LOGC_EFI
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#include <malloc.h>
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#include <efi_dt_fixup.h>
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#include <efi_loader.h>
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efi_handle_t efi_root = NULL;
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struct efi_root_dp {
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struct efi_device_path_vendor vendor;
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struct efi_device_path end;
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} __packed;
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/**
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* efi_root_node_register() - create root node
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*
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* Create the root node on which we install all protocols that are
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* not related to a loaded image or a driver.
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*
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* Return: status code
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*/
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efi_status_t efi_root_node_register(void)
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{
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efi_status_t ret;
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struct efi_root_dp *dp;
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/* Create device path protocol */
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dp = calloc(1, sizeof(*dp));
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if (!dp)
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return EFI_OUT_OF_RESOURCES;
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/* Fill vendor node */
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dp->vendor.dp.type = DEVICE_PATH_TYPE_HARDWARE_DEVICE;
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dp->vendor.dp.sub_type = DEVICE_PATH_SUB_TYPE_VENDOR;
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dp->vendor.dp.length = sizeof(struct efi_device_path_vendor);
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dp->vendor.guid = efi_u_boot_guid;
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/* Fill end node */
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dp->end.type = DEVICE_PATH_TYPE_END;
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dp->end.sub_type = DEVICE_PATH_SUB_TYPE_END;
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dp->end.length = sizeof(struct efi_device_path);
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/* Create root node and install protocols */
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ret = efi_install_multiple_protocol_interfaces
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(&efi_root,
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/* Device path protocol */
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&efi_guid_device_path, dp,
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#if CONFIG_IS_ENABLED(EFI_DEVICE_PATH_TO_TEXT)
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/* Device path to text protocol */
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&efi_guid_device_path_to_text_protocol,
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&efi_device_path_to_text,
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#endif
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#if IS_ENABLED(CONFIG_EFI_DEVICE_PATH_UTIL)
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/* Device path utilities protocol */
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&efi_guid_device_path_utilities_protocol,
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&efi_device_path_utilities,
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#endif
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#if CONFIG_IS_ENABLED(EFI_DT_FIXUP)
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/* Device-tree fix-up protocol */
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&efi_guid_dt_fixup_protocol,
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&efi_dt_fixup_prot,
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#endif
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#if IS_ENABLED(CONFIG_EFI_UNICODE_COLLATION_PROTOCOL2)
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&efi_guid_unicode_collation_protocol2,
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&efi_unicode_collation_protocol2,
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#endif
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#if IS_ENABLED(CONFIG_EFI_LOADER_HII)
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/* HII string protocol */
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&efi_guid_hii_string_protocol,
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&efi_hii_string,
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/* HII database protocol */
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&efi_guid_hii_database_protocol,
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&efi_hii_database,
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/* EFI HII Configuration Routing Protocol */
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&efi_guid_hii_config_routing_protocol,
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&efi_hii_config_routing,
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#endif
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NULL);
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efi_root->type = EFI_OBJECT_TYPE_U_BOOT_FIRMWARE;
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return ret;
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}
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