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[52.74.255.244]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2bea9a3c89csm8279415ad.83.2026.05.21.04.58.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 May 2026 04:58:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1779364698; x=1779969498; darn=nongnu.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=W2FeeLOoVdXBR2Rb1YkjqQG7mEPD3tMK8j89UuIwh40=; b=LSJbwRO/q9UXcJxZG6ncff1N+kFXcMI/25B4JA8V6jyPXe7UmlPkM3PvzM/waeD19U Pb1XMLK6ZrY9mCPsZdfAqaEQ159R9OD9LeNtBCI8iMwZxTRAKDVIDXd+B113tcmVaP56 zSH12S/T/Jn5v/OPF2Qc5g0zcUZNEWRR47fBk9bPWZjYAu3LWlqqxbCBd6RmXYIWNm7R 2VdnyyHag1JrT5bQ6YKQ9zVteJHpgDXcQfED4rY6QasV77BnbXuHsGFl/6gL0J32Ch0l pmtAPBZyh5xvBbrrlxn7T0DljE4c4wcNRDifofCP5ExJ3JSdmAGzfyR/2zbAJICoeYeo Dw8w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779364698; x=1779969498; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=W2FeeLOoVdXBR2Rb1YkjqQG7mEPD3tMK8j89UuIwh40=; b=q1lTyCrUEg0YTl8Ov2lMzWmaP2sJdF1lykta43KF82zwtMlhyb2MainCjbtZNDvIcT nns2n2VphbJaGQdeLdV5vkpYEWY7GjMj5nkHDdd+T67Z3rp3EoxUVkk5G5toYoUkEXjI FuaVAXuLZ9s+NRS7kfI0J6vAbWVL4J89zwfbnEdzCh7poZNsAMfr4GobXWjpAfOjwRpY eQYGqz2+wnIOzYdYUZoW6+doYQ1Q+SFiAJNzUktjNHoB3XWtvhtqX2AJePk5P2aqoTq+ UCo7I4JwVXVJQwyhFnyZtJ8bx/OSKg/mWgG0etnkPFTH0Mulm96FPN+sUctr3TmGx6cc u68A== X-Gm-Message-State: AOJu0YzKfMgBx3wZBdaqcJtTnKa3WzBbiomlrlDHB07iC6iDuwa9zcYN ZrH1hupog/odgc4SDotdgNyAALh1IXpc8IqyTcBIHKrTNHBtmkxLf+bp8BqTHhM9+QFbnnnd X-Gm-Gg: Acq92OGttEftiwjEmxLv52w3kEsnQaLmii6jLBlyEoSmlQWIbftP10cl4dduDFVRoSB L+kbGLYShMr6o27yjTtioOKg/gZD7IOccHnmdq+/giAp+MzqalVZ2hgyYWhKRFlJsS6i+2zFoc3 wPSodagJvkFlY8wMDRGbqEdjfEf5M38Lhvt7Qa9Y7cqTNrkrK0EFojC6o+wkw2X0GXSAwsHGEIx I97TMPyKHt0Kf3BWjPpbHT0q0J/Swb2WZevgu/yzTf0m1aR4YIIJBkkGJnuQG6BnR5snnbSfWsK 5aWZyn3r7aPnTOeY0YQgsbZUZU4jRWKQRUhVcRzq7EWHxAg1Ea/PvKHSpa/YnrTCEd3nwCQJF6Y srN/2mAxp7top3MhKYlFCVlx7D5HOMahs9eeuOJepwpbkkYs+nzQqpneJU0sxIRO73dviKLiYvd uioocH49Gsn6DjDwOSEOJMIvfpobMYSfQYrHSFMKD3wv8+qnswyQCJS6REvrRlhOIvQB/qStfXQ Fy2et+AC4ngw6x7Y0ZGsV2cwQs= X-Received: by 2002:a17:902:ce8f:b0:2bd:5ae4:26d1 with SMTP id d9443c01a7336-2bea229cbc2mr24423665ad.17.1779364698397; Thu, 21 May 2026 04:58:18 -0700 (PDT) From: Zephyr Li To: qemu-devel@nongnu.org Cc: qemu-riscv@nongnu.org, palmer@dabbelt.com, alistair.francis@wdc.com, liwei1518@gmail.com, daniel.barbosa@oss.qualcomm.com, zhiwei_liu@linux.alibaba.com, chao.liu.zevorn@gmail.com Subject: [PATCH] target/riscv: Raise illegal instruction for Svinval in U-mode Date: Thu, 21 May 2026 19:57:49 +0800 Message-ID: <20260521115749.28774-1-fritchleybohrer@gmail.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=lists1p.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::643; envelope-from=fritchleybohrer@gmail.com; helo=mail-pl1-x643.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, FREEMAIL_FROM=0.001, 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: Thu, 21 May 2026 08:53:24 -0400 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1779368098935158500 Content-Type: text/plain; charset="utf-8" The RISC-V privileged specification requires SFENCE.W.INVAL and SFENCE.INVAL.IR to raise an illegal instruction exception when executed in U-mode. Check the current privilege mode during translation and reject t= hese instructions in U-mode, so they are reported as illegal instructions. Resolves: https://gitlab.com/qemu-project/qemu/-/work_items/3493 Signed-off-by: Zephyr Li --- target/riscv/insn_trans/trans_svinval.c.inc | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/target/riscv/insn_trans/trans_svinval.c.inc b/target/riscv/ins= n_trans/trans_svinval.c.inc index a06c3b214f..a9bf75c7e9 100644 --- a/target/riscv/insn_trans/trans_svinval.c.inc +++ b/target/riscv/insn_trans/trans_svinval.c.inc @@ -39,6 +39,10 @@ static bool trans_sfence_w_inval(DisasContext *ctx, arg_= sfence_w_inval *a) { REQUIRE_SVINVAL(ctx); REQUIRE_EXT(ctx, RVS); + + if (ctx->priv =3D=3D PRV_U) { + return false; + } /* Do nothing currently */ return true; } @@ -47,6 +51,10 @@ static bool trans_sfence_inval_ir(DisasContext *ctx, arg= _sfence_inval_ir *a) { REQUIRE_SVINVAL(ctx); REQUIRE_EXT(ctx, RVS); + + if (ctx->priv =3D=3D PRV_U) { + return false; + } /* Do nothing currently */ return true; } --=20 2.43.0