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-rw-r--r--include/services/errata_abi_svc.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/include/services/errata_abi_svc.h b/include/services/errata_abi_svc.h
new file mode 100644
index 0000000..1250066
--- /dev/null
+++ b/include/services/errata_abi_svc.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2023, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef ERRATA_ABI_SVC_H
+#define ERRATA_ABI_SVC_H
+
+#include <lib/smccc.h>
+
+#define ARM_EM_VERSION U(0x840000F0)
+#define ARM_EM_FEATURES U(0x840000F1)
+#define ARM_EM_CPU_ERRATUM_FEATURES U(0x840000F2)
+
+/* EM version numbers */
+#define EM_VERSION_MAJOR (0x1)
+#define EM_VERSION_MINOR (0x0)
+
+/* EM CPU_ERRATUM_FEATURES return codes */
+#define EM_HIGHER_EL_MITIGATION (3)
+#define EM_NOT_AFFECTED (2)
+#define EM_AFFECTED (1)
+#define EM_SUCCESS (0)
+#define EM_NOT_SUPPORTED (-1)
+#define EM_INVALID_PARAMETERS (-2)
+#define EM_UNKNOWN_ERRATUM (-3)
+
+#if ERRATA_ABI_SUPPORT
+bool is_errata_fid(uint32_t smc_fid);
+#else
+static inline bool is_errata_fid(uint32_t smc_fid)
+{
+ return false;
+}
+#endif /* ERRATA_ABI_SUPPORT */
+uintptr_t errata_abi_smc_handler(
+ uint32_t smc_fid,
+ u_register_t x1,
+ u_register_t x2,
+ u_register_t x3,
+ u_register_t x4,
+ void *cookie,
+ void *handle,
+ u_register_t flags
+);
+#endif /* ERRATA_ABI_SVC_H */
+