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 --- include/efi_api.h | 9 +++++++++ lib/efi_loader/efi_boottime.c | 13 +++++++++++++ 2 files changed, 22 insertions(+)
diff --git a/include/efi_api.h b/include/efi_api.h index 0accad08c8..bba2f8144a 100644 --- a/include/efi_api.h +++ b/include/efi_api.h @@ -360,10 +360,15 @@ struct efi_runtime_services { };
/* EFI event group GUID definitions */ + #define EFI_EVENT_GROUP_EXIT_BOOT_SERVICES \ EFI_GUID(0x27abf055, 0xb1b8, 0x4c26, 0x80, 0x48, \ 0x74, 0x8f, 0x37, 0xba, 0xa2, 0xdf)
+#define EFI_EVENT_GROUP_BEFORE_EXIT_BOOT_SERVICES \ + EFI_GUID(0x8be0e274, 0x3970, 0x4b44, 0x80, 0xc5, \ + 0x1a, 0xb9, 0x50, 0x2f, 0x3b, 0xfc) + #define EFI_EVENT_GROUP_VIRTUAL_ADDRESS_CHANGE \ EFI_GUID(0x13fa7698, 0xc831, 0x49c7, 0x87, 0xea, \ 0x8f, 0x43, 0xfc, 0xc2, 0x51, 0x96) @@ -376,6 +381,10 @@ struct efi_runtime_services { EFI_GUID(0x7ce88fb3, 0x4bd7, 0x4679, 0x87, 0xa8, \ 0xa8, 0xd8, 0xde, 0xe5, 0x0d, 0x2b)
+#define EFI_EVENT_GROUP_AFTER_READY_TO_BOOT \ + EFI_GUID(0x3a2a00ad, 0x98b9, 0x4cdf, 0xa4, 0x78, \ + 0x70, 0x27, 0x77, 0xf1, 0xc1, 0xb) + #define EFI_EVENT_GROUP_RESET_SYSTEM \ EFI_GUID(0x62da6a56, 0x13fb, 0x485a, 0xa8, 0xda, \ 0xa3, 0xdd, 0x79, 0x12, 0xcb, 0x6b) diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c index 1823990d9b..6fdd0ef77a 100644 --- a/lib/efi_loader/efi_boottime.c +++ b/lib/efi_loader/efi_boottime.c @@ -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;