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[90.119.102.231]) by smtp.gmail.com with ESMTPSA id l9sm10511421wrz.7.2021.04.16.07.17.12 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 16 Apr 2021 07:17:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=from:to:cc:subject:date:message-id:references:mime-version; bh=Y0NFtQ7GKxg+D8+yBeQkxP4F6jq+pOWGtjppThGe8Zw=; b=QOhS4zTDUkT9aNKwfO9XwNXCpwJE1qn8CQbzc2PCu49Pe01i0HMobm90nXPMDqRKUL q70atWKX9yu3EOXPqwed1b5nOBAaeU6DmLFHqH9aVPpQ4s9twqmJM7DdhOd3rOQsHhZU vzAq26YWJ2Q5HT1mUMPIybn/+6T1IzS0x0K68D0ceqzDsOH87bhpvLlmlfp2p+XVyXrB vq829zJ1obRPuAHezj4ejJghTMnyYN7nToGsOre5ug0jyUFDTkhlovvlhJ6qjPO9NZ33 e8hlv/W/BTwxxAnEJctUYqjrjKK81JPp/sqDuaUzMOvr82RnRAppR/Sv0rd6qWQzdn+5 4qbw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:references :mime-version; bh=Y0NFtQ7GKxg+D8+yBeQkxP4F6jq+pOWGtjppThGe8Zw=; b=Z+RVxLTuJdhwHZ/2FZvPSMIotHY2oW0agPoK3p5dSw3EN2njt8l5iKjC7lbl93BWzk 7vjTE5oVeBKP4MxdxZyv0nDiUysyfgDa4ivU6iS8m2fuwJdvzfgUMhMn8sR3tFasYdjz rZ7huldl8ZMBkrjJ/wUSdNGN0DCs2d55bCekJxxWCaSyEwMXfw/CGgyAHxuv4I1S6piu GqcRt69lkJg9IS3aXTL/8FeceoDCZdUlXAqQZfEEaaocoF97504Bj31c836SEx0E8wRh 4PznXhGAan/cIPHIdaOewBMEItFhVAgqllJKEUzEUce+2hMkIl9TDNIkEE1k0NRY6Rfs a5sg== X-Gm-Message-State: AOAM533/i6l922mGQRkFk0szO22EgMxIkyZ5Uw68Cq00VeHJffpPLJNb icyh1iz8yJktAL4+9jt356q8tHRAnQ7yrQ== X-Google-Smtp-Source: ABdhPJwuJ5WmJoib9ITY2Z/8wXvu/NIInfsOmhF38B7XuSzNc4eiDh8IVqE+M1jwW4dB/gdw2IYrdg== X-Received: by 2002:a05:600c:203:: with SMTP id 3mr662394wmi.140.1618582633219; Fri, 16 Apr 2021 07:17:13 -0700 (PDT) From: "Emmanuel Blot" To: qemu-devel@nongnu.org Subject: [PATCH] target/riscv: fix exception index on instruction access fault Date: Fri, 16 Apr 2021 16:17:11 +0200 X-Mailer: MailMate (1.14r5757) Message-ID: References: <20210415134128.32670-1-emmanuel.blot@sifive.com> MIME-Version: 1.0 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::32b; envelope-from=emmanuel.blot@sifive.com; helo=mail-wm1-x32b.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Fri, 16 Apr 2021 10:48:05 -0400 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alistair Francis Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; format=flowed; charset="utf-8" When no MMU is used and the guest code attempts to fetch an instruction from an invalid memory location, the exception index defaults to a data load access fault, rather an instruction access fault. Signed-off-by: Emmanuel Blot Reviewed-by: Alistair Francis --- target/riscv/cpu_helper.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c index 21c54ef5613..4e107b1bd23 100644 --- a/target/riscv/cpu_helper.c +++ b/target/riscv/cpu_helper.c @@ -691,8 +691,10 @@ void riscv_cpu_do_transaction_failed(CPUState *cs,=20 hwaddr physaddr, if (access_type =3D=3D MMU_DATA_STORE) { cs->exception_index =3D RISCV_EXCP_STORE_AMO_ACCESS_FAULT; - } else { + } else if (access_type =3D=3D MMU_DATA_LOAD) { cs->exception_index =3D RISCV_EXCP_LOAD_ACCESS_FAULT; + } else { + cs->exception_index =3D RISCV_EXCP_INST_ACCESS_FAULT; } env->badaddr =3D addr; --=20 2.31.1