The UEFI specification states that the tpl, function and context
arguments are to be ignored if neither EVT_NOTIFY_WAIT or
EVT_NOTIFY_SIGNAL are specified. This matches observed behaviour with
an AMI EDK2 based UEFI implementation.
Skip calling the notify function if neither flag is present.
Signed-off-by: Jonathan Gray <j...@jsg.id.au>
---
include/efi_api.h | 3 +++
lib/efi_loader/efi_boottime.c | 4 +++-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/include/efi_api.h b/include/efi_api.h
index 5c3836a51b..f071b36b53 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -28,6 +28,9 @@ enum efi_event_type {
EFI_TIMER_RELATIVE = 2
};
+#define EVT_NOTIFY_WAIT 0x00000100
+#define EVT_NOTIFY_SIGNAL 0x00000200
+
/* EFI Boot Services table */
struct efi_boot_services {
struct efi_table_hdr hdr;
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 51080cbeed..eb5946a959 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -210,7 +210,9 @@ void efi_timer_check(void)
/* Triggering! */
if (efi_event.trigger_type == EFI_TIMER_PERIODIC)
efi_event.trigger_next += efi_event.trigger_time / 10;
- efi_event.notify_function(&efi_event, efi_event.notify_context);
+ if (efi_event.type & (EVT_NOTIFY_WAIT | EVT_NOTIFY_SIGNAL))
+ efi_event.notify_function(&efi_event,
+ efi_event.notify_context);
}
WATCHDOG_RESET();
--
2.12.0
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
https://lists.denx.de/listinfo/u-boot
