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efi_loader: EFI_EVENT_GROUP_BEFORE_EXIT_BOOT_SERVICES

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Implement the EFI_EVENT_GROUP_BEFORE_EXIT_BOOT_SERVICES event group
handling.

Add the definition of EFI_EVENT_GROUP_AFTER_READY_TO_BOOT.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit is contained in:
Heinrich Schuchardt
2021-11-16 18:46:27 +01:00
parent 5d49b32f0a
commit 43eaf5b13f
2 changed files with 22 additions and 0 deletions
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13
lib/efi_loader/efi_boottime.c
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@@ -71,6 +71,9 @@ const efi_guid_t efi_guid_driver_binding_protocol =
/* event group ExitBootServices() invoked */
const efi_guid_t efi_guid_event_group_exit_boot_services =
EFI_EVENT_GROUP_EXIT_BOOT_SERVICES;
/* event group before ExitBootServices() invoked */
const efi_guid_t efi_guid_event_group_before_exit_boot_services =
EFI_EVENT_GROUP_BEFORE_EXIT_BOOT_SERVICES;
/* event group SetVirtualAddressMap() invoked */
const efi_guid_t efi_guid_event_group_virtual_address_change =
EFI_EVENT_GROUP_VIRTUAL_ADDRESS_CHANGE;
@@ -2123,6 +2126,16 @@ static efi_status_t EFIAPI efi_exit_boot_services(efi_handle_t image_handle,
if (!systab.boottime)
goto out;
/* Notify EFI_EVENT_GROUP_BEFORE_EXIT_BOOT_SERVICES event group. */
list_for_each_entry(evt, &efi_events, link) {
if (evt->group &&
!guidcmp(evt->group,
&efi_guid_event_group_before_exit_boot_services)) {
efi_signal_event(evt);
break;
}
}
/* Stop all timer related activities */
timers_enabled = false;