From: Bin Meng <bmeng.cn@gmail.com>
Date: Sat, 7 Aug 2021 14:10:25 +0000 (+0800)
Subject: target/riscv: Correct a comment in riscv_csrrw()
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=65e728a28aa6c9df62711e2ece09f142b97825a6;p=qmiga%2Fqemu.git

target/riscv: Correct a comment in riscv_csrrw()

When privilege check fails, RISCV_EXCP_ILLEGAL_INST is returned,
not -1 (RISCV_EXCP_NONE).

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210807141025.31808-1-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---

diff --git a/target/riscv/csr.c b/target/riscv/csr.c
index 9a4ed18ac5..e747fbe0e9 100644
--- a/target/riscv/csr.c
+++ b/target/riscv/csr.c
@@ -1423,7 +1423,7 @@ RISCVException riscv_csrrw(CPURISCVState *env, int csrno,
     target_ulong old_value;
     RISCVCPU *cpu = env_archcpu(env);
 
-    /* check privileges and return -1 if check fails */
+    /* check privileges and return RISCV_EXCP_ILLEGAL_INST if check fails */
 #if !defined(CONFIG_USER_ONLY)
     int effective_priv = env->priv;
     int read_only = get_field(csrno, 0xC00) == 3;