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// SPDX-License-Identifier: GPL-2.0+
/*
* efi_selftest_exitbootservices
*
* Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
*
* This unit test checks that the notification function of an
* EVT_SIGNAL_EXIT_BOOT_SERVICES event is called exactly once.
*/
#include <efi_selftest.h>
static efi_guid_t guid_before_exit_boot_services =
EFI_GUID(0x8be0e274, 0x3970, 0x4b44, 0x80, 0xc5,
0x1a, 0xb9, 0x50, 0x2f, 0x3b, 0xfc);
#define CAPACITY 4
struct notification_record {
unsigned int count;
unsigned int type[CAPACITY];
};
struct notification_context {
struct notification_record *record;
unsigned int type;
};
static struct efi_boot_services *boottime;
static struct efi_event *event_notify;
struct notification_record record;
struct notification_context context_before = {
.record = &record,
.type = 1,
};
struct notification_context context = {
.record = &record,
.type = 2,
};
/*
* Notification function, increments the notification count.
*
* @event notified event
* @context pointer to the notification count
*/
static void EFIAPI ebs_notify(struct efi_event *event, void *context)
{
struct notification_context *ctx = context;
if (ctx->record->count >= CAPACITY)
return;
ctx->record->type[ctx->record->count] = ctx->type;
ctx->record->count++;
}
/*
* Setup unit test.
*
* Create an EVT_SIGNAL_EXIT_BOOT_SERVICES event.
*
* @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)
{
efi_status_t ret;
boottime = systable->boottime;
ret = boottime->create_event(EVT_SIGNAL_EXIT_BOOT_SERVICES,
TPL_CALLBACK, ebs_notify,
&context,
&event_notify);
if (ret != EFI_SUCCESS) {
efi_st_error("could not create event\n");
return EFI_ST_FAILURE;
}
ret = boottime->create_event_ex(0, TPL_CALLBACK, ebs_notify,
&context_before,
&guid_before_exit_boot_services,
&event_notify);
if (ret != EFI_SUCCESS) {
efi_st_error("could not create event\n");
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
/*
* Execute unit test.
*
* Check that the notification function of the EVT_SIGNAL_EXIT_BOOT_SERVICES
* event has been called.
*
* Call ExitBootServices again and check that the notification function is
* not called again.
*
* @return: EFI_ST_SUCCESS for success
*/
static int execute(void)
{
if (record.count != 2) {
efi_st_error("Incorrect event count %u\n", record.count);
return EFI_ST_FAILURE;
}
if (record.type[0] != 1) {
efi_st_error("EFI_GROUP_BEFORE_EXIT_BOOT_SERVICE not notified\n");
return EFI_ST_FAILURE;
}
if (record.type[1] != 2) {
efi_st_error("EVT_SIGNAL_EXIT_BOOT_SERVICES was not notified\n");
return EFI_ST_FAILURE;
}
efi_st_exit_boot_services();
if (record.count != 2) {
efi_st_error("Incorrect event count %u\n", record.count);
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
EFI_UNIT_TEST(exitbootservices) = {
.name = "ExitBootServices",
.phase = EFI_SETUP_BEFORE_BOOTTIME_EXIT,
.setup = setup,
.execute = execute,
};
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