Files
u-boot/lib/efi_loader/testapp.c
Simon Glass 65091e5d24 efi_loader: Test that active-DMA devices are removed
When exit-boot-services is called, active devices should be removed.

Update testapp to call this method and check that the USB controller is
removed as expected.

Signed-off-by: Simon Glass <sjg@chromium.org>
2025-01-30 13:05:19 -07:00

94 lines
2.5 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* EFI test application
*
* Copyright 2024 Google LLC
* Written by Simon Glass <sjg@chromium.org>
*
* This test program is used to test the invocation of an EFI application.
* It writes a few messages to the console and then exits boot services
*/
#include <efi_api.h>
static const efi_guid_t loaded_image_guid = EFI_LOADED_IMAGE_PROTOCOL_GUID;
static struct efi_system_table *systable;
static struct efi_boot_services *boottime;
static struct efi_simple_text_output_protocol *con_out;
/**
* efi_main() - entry point of the EFI application.
*
* @handle: handle of the loaded image
* @systab: system table
* Return: status code
*/
efi_status_t EFIAPI efi_main(efi_handle_t handle,
struct efi_system_table *systab)
{
struct efi_loaded_image *loaded_image;
struct efi_mem_desc *map;
efi_status_t ret;
efi_uintn_t map_size;
efi_uintn_t map_key;
efi_uintn_t desc_size;
u32 desc_version;
systable = systab;
boottime = systable->boottime;
con_out = systable->con_out;
/* Get the loaded image protocol */
ret = boottime->open_protocol(handle, &loaded_image_guid,
(void **)&loaded_image, NULL, NULL,
EFI_OPEN_PROTOCOL_GET_PROTOCOL);
if (ret != EFI_SUCCESS) {
con_out->output_string
(con_out, u"Cannot open loaded image protocol\r\n");
goto out;
}
/* UEFI requires CR LF */
con_out->output_string(con_out, u"U-Boot test app for EFI_LOADER\r\n");
out:
map_size = 0;
ret = boottime->get_memory_map(&map_size, NULL, &map_key, &desc_size,
&desc_version);
if (ret != EFI_BUFFER_TOO_SMALL) {
con_out->output_string(con_out, u"map error A\n");
return ret;
}
ret = boottime->allocate_pool(EFI_BOOT_SERVICES_DATA, map_size,
(void **)&map);
if (ret) {
con_out->output_string(con_out, u"map error B\n");
return ret;
}
/* Allocate extra space for newly allocated memory */
map_size += sizeof(struct efi_mem_desc);
ret = boottime->get_memory_map(&map_size, map, &map_key, &desc_size,
&desc_version);
if (ret) {
con_out->output_string(con_out, u"map error C\n");
return ret;
}
/* exit boot services so that this part of U-Boot can be tested */
con_out->output_string(con_out, u"Exiting boot services\n");
ret = boottime->exit_boot_services(handle, map_key);
if (ret) {
con_out->output_string(con_out, u"Failed exit-boot-services\n");
return ret;
}
/* now exit for real */
con_out->output_string(con_out, u"Exiting test app\n");
ret = boottime->exit(handle, ret, 0, NULL);
/* We should never arrive here */
return ret;
}