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[PATCH v4 01/33] target/nios2: Check supervisor on eret
From: |
Richard Henderson |
Subject: |
[PATCH v4 01/33] target/nios2: Check supervisor on eret |
Date: |
Mon, 7 Mar 2022 21:19:33 -1000 |
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 --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]);
--
2.25.1
- [PATCH v4 00/33] target/nios2: Shadow register set, EIC and VIC, Richard Henderson, 2022/03/08
- [PATCH v4 06/33] target/nios2: Do not create TCGv for control registers, Richard Henderson, 2022/03/08
- [PATCH v4 01/33] target/nios2: Check supervisor on eret,
Richard Henderson <=
- [PATCH v4 02/33] target/nios2: Stop generating code if gen_check_supervisor fails, Richard Henderson, 2022/03/08
- [PATCH v4 03/33] target/nios2: Add NUM_GP_REGS and NUM_CP_REGS, Richard Henderson, 2022/03/08
- [PATCH v4 07/33] linux-user/nios2: Trim target_pc_regs to sp and pc, Richard Henderson, 2022/03/08
- [PATCH v4 08/33] target/nios2: Remove cpu_interrupts_enabled, Richard Henderson, 2022/03/08
- [PATCH v4 09/33] target/nios2: Split control registers away from general registers, Richard Henderson, 2022/03/08