feat(rmmd): add support to create a boot manifest
This patch also adds an initial RMM Boot Manifest (v0.1) for fvp
platform.
Signed-off-by: Javier Almansa Sobrino <javier.almansasobrino@arm.com>
Change-Id: I1374f8f9cb207028f1820953cd2a5cf6d6c3b948
diff --git a/services/std_svc/rmmd/trp/trp_helpers.c b/services/std_svc/rmmd/trp/trp_helpers.c
new file mode 100644
index 0000000..159f3a5
--- /dev/null
+++ b/services/std_svc/rmmd/trp/trp_helpers.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2022, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+
+#include <plat/common/platform.h>
+#include <services/rmmd_svc.h>
+#include "trp_private.h"
+
+/*
+ * Per cpu data structure to populate parameters for an SMC in C code and use
+ * a pointer to this structure in assembler code to populate x0-x7
+ */
+static trp_args_t trp_smc_args[PLATFORM_CORE_COUNT];
+
+/*
+ * Set the arguments for SMC call
+ */
+trp_args_t *set_smc_args(uint64_t arg0,
+ uint64_t arg1,
+ uint64_t arg2,
+ uint64_t arg3,
+ uint64_t arg4,
+ uint64_t arg5,
+ uint64_t arg6,
+ uint64_t arg7)
+{
+ uint32_t linear_id;
+ trp_args_t *pcpu_smc_args;
+
+ /*
+ * Return to Secure Monitor by raising an SMC. The results of the
+ * service are passed as an arguments to the SMC
+ */
+ linear_id = plat_my_core_pos();
+ pcpu_smc_args = &trp_smc_args[linear_id];
+ write_trp_arg(pcpu_smc_args, TRP_ARG0, arg0);
+ write_trp_arg(pcpu_smc_args, TRP_ARG1, arg1);
+ write_trp_arg(pcpu_smc_args, TRP_ARG2, arg2);
+ write_trp_arg(pcpu_smc_args, TRP_ARG3, arg3);
+ write_trp_arg(pcpu_smc_args, TRP_ARG4, arg4);
+ write_trp_arg(pcpu_smc_args, TRP_ARG5, arg5);
+ write_trp_arg(pcpu_smc_args, TRP_ARG6, arg6);
+ write_trp_arg(pcpu_smc_args, TRP_ARG7, arg7);
+
+ return pcpu_smc_args;
+}
+
+/*
+ * Abort the boot process with the reason given in err.
+ */
+__dead2 void trp_boot_abort(uint64_t err)
+{
+ (void)trp_smc(set_smc_args(RMM_BOOT_COMPLETE, err, 0, 0, 0, 0, 0, 0));
+ panic();
+}