From: Amir Gonnen <amir.gonnen@neuroblade.ai>
Date: Thu, 21 Apr 2022 15:16:44 +0000 (-0700)
Subject: target/nios2: Check supervisor on eret
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b106e7b7e48e5b1ab8e13165f28451f6ebf1fe3b;p=qemu.git

target/nios2: Check supervisor on eret

eret instruction is only allowed in supervisor mode.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Amir Gonnen <amir.gonnen@neuroblade.ai>
Message-Id: <20220303153906.2024748-2-amir.gonnen@neuroblade.ai>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220421151735.31996-14-richard.henderson@linaro.org>
---

diff --git a/target/nios2/translate.c b/target/nios2/translate.c
index 89b97ef520..eb97e13feb 100644
--- a/target/nios2/translate.c
+++ b/target/nios2/translate.c
@@ -384,6 +384,8 @@ static const Nios2Instruction i_type_instructions[] = {
  */
 static void eret(DisasContext *dc, uint32_t code, uint32_t flags)
 {
+    gen_check_supervisor(dc);
+
     tcg_gen_mov_tl(cpu_R[CR_STATUS], cpu_R[CR_ESTATUS]);
     tcg_gen_mov_tl(cpu_R[R_PC], cpu_R[R_EA]);