From 7891fe675d03f2407b040c472ae76050bc88c24e Mon Sep 17 00:00:00 2001 From: Heinrich Schuchardt Date: Thu, 10 Jun 2021 23:10:52 +0200 Subject: [PATCH] efi_loader: TPL_HIGH_LEVEL not allowed for CreateEvent According to chapter 7.1 "Event, Timer, and Task Priority Services" TPL_HIGH_LEVEL should not be exposed to applications and drivers. According to the discussion with EDK II contributors this implies that CreateEvent() shall not allow to create events with TPL_HIGH_LEVEL. Cc: Samer El-Haj-Mahmoud Signed-off-by: Heinrich Schuchardt Acked-by: Samer El-Haj-Mahmoud --- lib/efi_loader/efi_boottime.c | 1 - lib/efi_selftest/efi_selftest_tpl.c | 2 +- 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c index 4777b35fd4..f6d5ba05e3 100644 --- a/lib/efi_loader/efi_boottime.c +++ b/lib/efi_loader/efi_boottime.c @@ -264,7 +264,6 @@ efi_status_t is_valid_tpl(efi_uintn_t tpl) case TPL_APPLICATION: case TPL_CALLBACK: case TPL_NOTIFY: - case TPL_HIGH_LEVEL: return EFI_SUCCESS; default: return EFI_INVALID_PARAMETER; diff --git a/lib/efi_selftest/efi_selftest_tpl.c b/lib/efi_selftest/efi_selftest_tpl.c index 70a355eae6..0c0e412ae2 100644 --- a/lib/efi_selftest/efi_selftest_tpl.c +++ b/lib/efi_selftest/efi_selftest_tpl.c @@ -55,7 +55,7 @@ static int setup(const efi_handle_t handle, return EFI_ST_FAILURE; } ret = boottime->create_event(EVT_TIMER | EVT_NOTIFY_WAIT, - TPL_HIGH_LEVEL, notify, NULL, &event_wait); + TPL_NOTIFY, notify, NULL, &event_wait); if (ret != EFI_SUCCESS) { efi_st_error("could not create event\n"); return EFI_ST_FAILURE;