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[PATCH v3 1/5] target/nios2: Check supervisor on eret


From: Amir Gonnen
Subject: [PATCH v3 1/5] target/nios2: Check supervisor on eret
Date: Thu, 3 Mar 2022 17:39:02 +0200

eret instruction is only allowed in supervisor mode.

Signed-off-by: Amir Gonnen <amir.gonnen@neuroblade.ai>
---
 target/nios2/translate.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/target/nios2/translate.c b/target/nios2/translate.c
index ce3aacf59d..007c17e6e9 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]);
 
-- 
2.25.1




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