1 files changed, 59 insertions, 0 deletions
diff --git a/lib/efi_loader/efi_conformance.c b/lib/efi_loader/efi_conformance.c
new file mode 100644
index 00000000000..167067e26cd
--- /dev/null
+++ b/lib/efi_loader/efi_conformance.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  EFI conformance profile table
+ *
+ *  Copyright (C) 2022 Arm Ltd.
+ */
+
+#include <efi_loader.h>
+#include <log.h>
+#include <efi_api.h>
+#include <malloc.h>
+
+static const efi_guid_t efi_ecpt_guid = EFI_CONFORMANCE_PROFILES_TABLE_GUID;
+static const efi_guid_t efi_ebbr_2_1_guid =
+	EFI_CONFORMANCE_PROFILE_EBBR_2_1_GUID;
+
+/**
+ * efi_ecpt_register() - Install the ECPT system table.
+ *
+ * Return: status code
+ */
+efi_status_t efi_ecpt_register(void)
+{
+	u16 num_entries = 0;
+	struct efi_conformance_profiles_table *ecpt;
+	efi_status_t ret;
+	size_t ecpt_size;
+
+	ecpt_size = num_entries * sizeof(efi_guid_t)
+		+ sizeof(struct efi_conformance_profiles_table);
+	ret = efi_allocate_pool(EFI_BOOT_SERVICES_DATA, ecpt_size,
+				(void **)&ecpt);
+
+	if (ret != EFI_SUCCESS) {
+		log_err("Out of memory\n");
+
+		return ret;
+	}
+
+	if (CONFIG_IS_ENABLED(EFI_EBBR_2_1_CONFORMANCE))
+		guidcpy(&ecpt->conformance_profiles[num_entries++],
+			&efi_ebbr_2_1_guid);
+
+	ecpt->version = EFI_CONFORMANCE_PROFILES_TABLE_VERSION;
+	ecpt->number_of_profiles = num_entries;
+
+	/* Install the ECPT in the system configuration table. */
+	ret = efi_install_configuration_table(&efi_ecpt_guid, (void *)ecpt);
+	if (ret != EFI_SUCCESS) {
+		log_err("Failed to install ECPT\n");
+		efi_free_pool(ecpt);
+
+		return ret;
+	}
+
+	log_debug("ECPT created\n");
+
+	return EFI_SUCCESS;
+}