From c93a1c8185e64b9571df9f7fe2c33f26cd3c41d7 Mon Sep 17 00:00:00 2001
From: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Date: Thu, 22 Nov 2018 11:26:22 +0100
Subject: [PATCH] riscv: hang on unhandled exceptions

Hang on unhandled exceptions to prevent execution in a faulty state.

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
---
 arch/riscv/lib/interrupts.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/riscv/lib/interrupts.c b/arch/riscv/lib/interrupts.c
index d0d8de5..903a1c4 100644
--- a/arch/riscv/lib/interrupts.c
+++ b/arch/riscv/lib/interrupts.c
@@ -87,4 +87,6 @@ static void _exit_trap(ulong code, ulong epc, struct pt_regs *regs)
 	} else {
 		printf("Reserved\n");
 	}
+
+	hang();
 }
-- 
2.7.4