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efi_selftest: unit test for EFI_GROUP_BEFORE_EXIT_BOOT_SERVICE

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Add a test for the EFI_GROUP_BEFORE_EXIT_BOOT_SERVICE event group.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit is contained in:
Heinrich Schuchardt 2021-11-17 18:52:35 +01:00
parent 43eaf5b13f
commit 22ad3f5f7b
1 changed files with 56 additions and 11 deletions
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67
lib/efi_selftest/efi_selftest_exitbootservices.c
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@ -10,9 +10,34 @@
#include <efi_selftest.h> #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_boot_services *boottime;
static struct efi_event *event_notify; static struct efi_event *event_notify;
static unsigned int notification_count; 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. * Notification function, increments the notification count.
@ -20,11 +45,15 @@ static unsigned int notification_count;
* @event notified event * @event notified event
* @context pointer to the notification count * @context pointer to the notification count
*/ */
static void EFIAPI notify(struct efi_event *event, void *context) static void EFIAPI ebs_notify(struct efi_event *event, void *context)
{ {
unsigned int *count = context; struct notification_context *ctx = context;
++*count; if (ctx->record->count >= CAPACITY)
return;
ctx->record->type[ctx->record->count] = ctx->type;
ctx->record->count++;
} }
/* /*
@ -43,15 +72,23 @@ static int setup(const efi_handle_t handle,
boottime = systable->boottime; boottime = systable->boottime;
notification_count = 0;
ret = boottime->create_event(EVT_SIGNAL_EXIT_BOOT_SERVICES, ret = boottime->create_event(EVT_SIGNAL_EXIT_BOOT_SERVICES,
TPL_CALLBACK, notify, TPL_CALLBACK, ebs_notify,
(void *)&notification_count, &context,
&event_notify); &event_notify);
if (ret != EFI_SUCCESS) { if (ret != EFI_SUCCESS) {
efi_st_error("could not create event\n"); efi_st_error("could not create event\n");
return EFI_ST_FAILURE; 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; return EFI_ST_SUCCESS;
} }
@ -68,13 +105,21 @@ static int setup(const efi_handle_t handle,
*/ */
static int execute(void) static int execute(void)
{ {
if (notification_count != 1) { if (record.count != 2) {
efi_st_error("ExitBootServices was not notified\n"); 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; return EFI_ST_FAILURE;
} }
efi_st_exit_boot_services(); efi_st_exit_boot_services();
if (notification_count != 1) { if (record.count != 2) {
efi_st_error("ExitBootServices was notified twice\n"); efi_st_error("Incorrect event count %u\n", record.count);
return EFI_ST_FAILURE; return EFI_ST_FAILURE;
} }
return EFI_ST_SUCCESS; return EFI_ST_SUCCESS;