drivers/intel: Align FSP debug handler with EFI calling convention
Ensures the FSP debug handler adheres to the EFI calling convention,
enabling seamless integration with coreboot infrastructure.
This is critical for 64-bit coreboot and FSP communications.
BUG=b:242829490
TEST=FSP debug logs successfully captured via coreboot event handler.
Change-Id: I9085a6c7d50e58fb56cbbc61da3a0af094d0dc05
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81621
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Dinesh Gehlot <digehlot@google.com>
Reviewed-by: Ronak Kanabar <ronak.kanabar@intel.com>
diff --git a/src/drivers/intel/fsp2_0/fsp_debug_event.c b/src/drivers/intel/fsp2_0/fsp_debug_event.c
index 2ebecc0..4b3e151a 100644
--- a/src/drivers/intel/fsp2_0/fsp_debug_event.c
+++ b/src/drivers/intel/fsp2_0/fsp_debug_event.c
@@ -17,7 +17,7 @@
return FSP_SUCCESS;
}
-efi_return_status_t fsp_debug_event_handler(efi_status_code_type_t ignored1,
+__efiapi efi_return_status_t fsp_debug_event_handler(efi_status_code_type_t ignored1,
efi_status_code_value_t ignored2, efi_uint32_t ignored3, efi_guid_t *ignored4,
efi_status_code_data_t *data)
{
diff --git a/src/drivers/intel/fsp2_0/include/fsp/fsp_debug_event.h b/src/drivers/intel/fsp2_0/include/fsp/fsp_debug_event.h
index 7d50c1e..149629a 100644
--- a/src/drivers/intel/fsp2_0/include/fsp/fsp_debug_event.h
+++ b/src/drivers/intel/fsp2_0/include/fsp/fsp_debug_event.h
@@ -12,7 +12,7 @@
#include <fsp/soc_binding.h>
/* fsp debug event handler */
-efi_return_status_t fsp_debug_event_handler(efi_status_code_type_t ignored1,
+__efiapi efi_return_status_t fsp_debug_event_handler(efi_status_code_type_t ignored1,
efi_status_code_value_t ignored2, efi_uint32_t ignored3, efi_guid_t *ignored4,
efi_status_code_data_t *data);