In ExitBootServices we need to signal events irrespective of the current TPL level. A new parameter check_tpl is added to efi_signal_event().
Function efi_console_timer_notify() gets some comments.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- v3 new patch --- include/efi_loader.h | 2 +- lib/efi_loader/efi_boottime.c | 15 ++++++++------- lib/efi_loader/efi_console.c | 14 +++++++++++--- 3 files changed, 20 insertions(+), 11 deletions(-)
diff --git a/include/efi_loader.h b/include/efi_loader.h index 3579db8b63..035b04fef4 100644 --- a/include/efi_loader.h +++ b/include/efi_loader.h @@ -240,7 +240,7 @@ efi_status_t efi_create_event(uint32_t type, efi_uintn_t notify_tpl, efi_status_t efi_set_timer(struct efi_event *event, enum efi_timer_delay type, uint64_t trigger_time); /* Call this to signal an event */ -void efi_signal_event(struct efi_event *event); +void efi_signal_event(struct efi_event *event, bool check_tpl);
/* open file system: */ struct efi_simple_file_system_protocol *efi_simple_file_system( diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c index 15baeb275f..ebd21b7b05 100644 --- a/lib/efi_loader/efi_boottime.c +++ b/lib/efi_loader/efi_boottime.c @@ -148,13 +148,14 @@ const char *__efi_nesting_dec(void) * For the SignalEvent service see efi_signal_event_ext. * * @event event to signal + * @check_tpl check the TPL level */ -void efi_signal_event(struct efi_event *event) +void efi_signal_event(struct efi_event *event, bool check_tpl) { if (event->notify_function) { event->is_queued = true; /* Check TPL */ - if (efi_tpl >= event->notify_tpl) + if (check_tpl && efi_tpl >= event->notify_tpl) return; EFI_CALL_VOID(event->notify_function(event, event->notify_context)); @@ -564,7 +565,7 @@ void efi_timer_check(void) if (!efi_events[i].type) continue; if (efi_events[i].is_queued) - efi_signal_event(&efi_events[i]); + efi_signal_event(&efi_events[i], true); if (!(efi_events[i].type & EVT_TIMER) || now < efi_events[i].trigger_next) continue; @@ -580,7 +581,7 @@ void efi_timer_check(void) continue; } efi_events[i].is_signaled = true; - efi_signal_event(&efi_events[i]); + efi_signal_event(&efi_events[i], true); } WATCHDOG_RESET(); } @@ -689,7 +690,7 @@ known_event: if (!event[i]->type || event[i]->type & EVT_NOTIFY_SIGNAL) return EFI_EXIT(EFI_INVALID_PARAMETER); if (!event[i]->is_signaled) - efi_signal_event(event[i]); + efi_signal_event(event[i], true); }
/* Wait for signal */ @@ -739,7 +740,7 @@ static efi_status_t EFIAPI efi_signal_event_ext(struct efi_event *event) break; event->is_signaled = true; if (event->type & EVT_NOTIFY_SIGNAL) - efi_signal_event(event); + efi_signal_event(event, true); break; } return EFI_EXIT(EFI_SUCCESS); @@ -796,7 +797,7 @@ static efi_status_t EFIAPI efi_check_event(struct efi_event *event) if (!event->type || event->type & EVT_NOTIFY_SIGNAL) break; if (!event->is_signaled) - efi_signal_event(event); + efi_signal_event(event, true); if (event->is_signaled) return EFI_EXIT(EFI_SUCCESS); return EFI_EXIT(EFI_NOT_READY); diff --git a/lib/efi_loader/efi_console.c b/lib/efi_loader/efi_console.c index 98497db612..9e72f75b69 100644 --- a/lib/efi_loader/efi_console.c +++ b/lib/efi_loader/efi_console.c @@ -482,18 +482,26 @@ static void EFIAPI efi_key_notify(struct efi_event *event, void *context) { }
+/* + * Notification function of the console timer event. + * + * event: console timer event + * context: not used + */ static void EFIAPI efi_console_timer_notify(struct efi_event *event, void *context) { EFI_ENTRY("%p, %p", event, context); + + /* Check if input is available */ if (tstc()) { + /* Queue the wait for key event */ efi_con_in.wait_for_key->is_signaled = true; - efi_signal_event(efi_con_in.wait_for_key); - } + efi_signal_event(efi_con_in.wait_for_key, true); + } EFI_EXIT(EFI_SUCCESS); }
- /* This gets called from do_bootefi_exec(). */ int efi_console_register(void) {