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34d2faaef6
Add a simple app to use for testing. This is intended to do whatever it needs to for testing purposes. For now it just prints a message and exits boot services. There was a considerable amount of discussion about whether it is OK to call exit-boot-services and then return to U-Boot. This is not normally done in a real application, since exit-boot-services is used to completely disconnect from U-Boot. For now, this part is skipped. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* EFI test application
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*
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* Copyright 2024 Google LLC
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* Written by Simon Glass <sjg@chromium.org>
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*
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* This test program is used to test the invocation of an EFI application.
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* It writes a few messages to the console and then exits boot services
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*/
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#include <efi_api.h>
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static const efi_guid_t loaded_image_guid = EFI_LOADED_IMAGE_PROTOCOL_GUID;
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static struct efi_system_table *systable;
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static struct efi_boot_services *boottime;
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static struct efi_simple_text_output_protocol *con_out;
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/**
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* efi_main() - entry point of the EFI application.
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*
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* @handle: handle of the loaded image
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* @systab: system table
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* Return: status code
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*/
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efi_status_t EFIAPI efi_main(efi_handle_t handle,
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struct efi_system_table *systab)
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{
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struct efi_loaded_image *loaded_image;
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efi_status_t ret;
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systable = systab;
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boottime = systable->boottime;
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con_out = systable->con_out;
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/* Get the loaded image protocol */
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ret = boottime->open_protocol(handle, &loaded_image_guid,
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(void **)&loaded_image, NULL, NULL,
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EFI_OPEN_PROTOCOL_GET_PROTOCOL);
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if (ret != EFI_SUCCESS) {
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con_out->output_string
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(con_out, u"Cannot open loaded image protocol\r\n");
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goto out;
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}
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/* UEFI requires CR LF */
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con_out->output_string(con_out, u"U-Boot test app for EFI_LOADER\r\n");
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out:
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con_out->output_string(con_out, u"Exiting test app\n");
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ret = boottime->exit(handle, ret, 0, NULL);
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/* We should never arrive here */
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return ret;
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}
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