diff mbox series

[v5,01/48] target/nios2: Check supervisor on eret

Message ID 20220310112725.570053-2-richard.henderson@linaro.org
State Superseded
Headers show
Series target/nios2: Shadow register set, EIC and VIC | expand

Commit Message

Richard Henderson March 10, 2022, 11:26 a.m. UTC 
From: Amir Gonnen <amir.gonnen@neuroblade.ai>

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>
---
 target/nios2/translate.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/target/nios2/translate.c b/target/nios2/translate.c
index f89271dbed..341f3a8273 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]);