From: Amir Gonnen <amir.gonnen@neuroblade.ai>
To: qemu-devel@nongnu.org, Peter Maydell <peter.maydell@linaro.org>,
Chris Wulff <crwulff@gmail.com>, Marek Vasut <marex@denx.de>,
Richard Henderson <richard.henderson@linaro.org>
Cc: Amir Gonnen <amir.gonnen@neuroblade.ai>
Subject: [PATCH v3 1/5] target/nios2: Check supervisor on eret
Date: Thu, 3 Mar 2022 17:39:02 +0200 [thread overview]
Message-ID: <20220303153906.2024748-2-amir.gonnen@neuroblade.ai> (raw)
In-Reply-To: <20220303153906.2024748-1-amir.gonnen@neuroblade.ai>
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
next prev parent reply other threads:[~2022-03-03 15:58 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-03 15:39 [PATCH v3 0/5] target/nios2: Shadow register set, EIC and VIC Amir Gonnen
2022-03-03 15:39 ` Amir Gonnen [this message]
2022-03-04 12:57 ` [PATCH v3 1/5] target/nios2: Check supervisor on eret Peter Maydell
2022-03-04 20:58 ` Richard Henderson
2022-03-03 15:39 ` [PATCH v3 2/5] target/nios2: Shadow register set Amir Gonnen
2022-03-04 21:45 ` Richard Henderson
2022-03-03 15:39 ` [PATCH v3 3/5] target/nios2: Exteral Interrupt Controller (EIC) Amir Gonnen
2022-03-04 22:25 ` Richard Henderson
2022-03-03 15:39 ` [PATCH v3 4/5] hw/intc: Vectored Interrupt Controller (VIC) Amir Gonnen
2022-03-04 12:55 ` Peter Maydell
2022-03-03 15:39 ` [PATCH v3 5/5] hw/nios2: Machine with a Vectored Interrupt Controller Amir Gonnen
2022-03-04 12:58 ` Peter Maydell
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