1 files changed, 37 insertions, 0 deletions
diff --git a/libcpu/aarch64/common/smccc.S b/libcpu/aarch64/common/smccc.S
new file mode 100644
index 0000000000..501d210c16
--- /dev/null
+++ b/libcpu/aarch64/common/smccc.S
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2021-09-09     GuEe-GUI     The first version
+ */
+
+/*
+ * smc calling convention call
+ */
+.macro SMCCC_CALL INS
+    stp     x8, x29, [sp,#-16]! /* push the frame pointer (x29) for the purposes of AAPCS64 compatibility */
+    \INS    #0
+    ldp     x8, x29, [sp], #16
+
+    stp     x0, x1, [x8]
+    stp     x2, x3, [x8, #16]
+    str     x6, [x8, #32]
+    ret
+.endm
+
+/*
+ * smc call
+ */
+.globl arm_smc_call
+arm_smc_call:
+    SMCCC_CALL smc
+
+/*
+ * hvc call
+ */
+.globl arm_hvc_call
+arm_hvc_call:
+    SMCCC_CALL hvc