1 files changed, 63 insertions, 0 deletions
diff --git a/services/std_svc/rmmd/rmmd_private.h b/services/std_svc/rmmd/rmmd_private.h
new file mode 100644
index 0000000..4954a43
--- /dev/null
+++ b/services/std_svc/rmmd/rmmd_private.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2021-2022, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef RMMD_PRIVATE_H
+#define RMMD_PRIVATE_H
+
+#include <context.h>
+
+/*******************************************************************************
+ * Constants that allow assembler code to preserve callee-saved registers of the
+ * C runtime context while performing a security state switch.
+ ******************************************************************************/
+#define RMMD_C_RT_CTX_X19		0x0
+#define RMMD_C_RT_CTX_X20		0x8
+#define RMMD_C_RT_CTX_X21		0x10
+#define RMMD_C_RT_CTX_X22		0x18
+#define RMMD_C_RT_CTX_X23		0x20
+#define RMMD_C_RT_CTX_X24		0x28
+#define RMMD_C_RT_CTX_X25		0x30
+#define RMMD_C_RT_CTX_X26		0x38
+#define RMMD_C_RT_CTX_X27		0x40
+#define RMMD_C_RT_CTX_X28		0x48
+#define RMMD_C_RT_CTX_X29		0x50
+#define RMMD_C_RT_CTX_X30		0x58
+
+#define RMMD_C_RT_CTX_SIZE		0x60
+#define RMMD_C_RT_CTX_ENTRIES		(RMMD_C_RT_CTX_SIZE >> DWORD_SHIFT)
+
+#ifndef __ASSEMBLER__
+#include <stdint.h>
+
+/*
+ * Data structure used by the RMM dispatcher (RMMD) in EL3 to track context of
+ * the RMM at R-EL2.
+ */
+typedef struct rmmd_rmm_context {
+	uint64_t c_rt_ctx;
+	cpu_context_t cpu_ctx;
+} rmmd_rmm_context_t;
+
+/* Functions used to enter/exit the RMM synchronously */
+uint64_t rmmd_rmm_sync_entry(rmmd_rmm_context_t *ctx);
+__dead2 void rmmd_rmm_sync_exit(uint64_t rc);
+
+/* Functions implementing attestation utilities for RMM */
+int rmmd_attest_get_platform_token(uint64_t buf_pa, uint64_t *buf_size,
+				   uint64_t c_size);
+int rmmd_attest_get_signing_key(uint64_t buf_pa, uint64_t *buf_size,
+				uint64_t ecc_curve);
+
+/* Assembly helpers */
+uint64_t rmmd_rmm_enter(uint64_t *c_rt_ctx);
+void __dead2 rmmd_rmm_exit(uint64_t c_rt_ctx, uint64_t ret);
+
+/* Reference to PM ops for the RMMD */
+extern const spd_pm_ops_t rmmd_pm;
+
+#endif /* __ASSEMBLER__ */
+
+#endif /* RMMD_PRIVATE_H */