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Thu, 21 May 2026 17:04:20 -0700 (PDT) From: alistair23@gmail.com X-Google-Original-From: alistair.francis@wdc.com To: qemu-devel@nongnu.org Cc: alistair23@gmail.com, Zishun Yi , Daniel Henrique Barboza , Alistair Francis Subject: [PULL 14/48] target/riscv: add Zvknha as an implied extension for Zvknhb Date: Fri, 22 May 2026 10:02:50 +1000 Message-ID: <20260522000324.23255-15-alistair.francis@wdc.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260522000324.23255-1-alistair.francis@wdc.com> References: <20260522000324.23255-1-alistair.francis@wdc.com> 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::634; envelope-from=alistair23@gmail.com; helo=mail-pl1-x634.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 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_ENVFROM_END_DIGIT=0.25, 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-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: 1779408578912154100 Content-Type: text/plain; charset="utf-8" From: Zishun Yi The RISC-V unpriv specification (zvk.adoc) states that "Zvknhb implies Zvknha". This means that enabling Zvknhb should automatically enable Zvknha. Add Zvknha to ZVKNHB_IMPLIED to ensure the dependency is correctly enforced. This issue was discovered and reported by SpecHunter, an AI-driven architecture specification analysis tool. Link:https://github.com/yizishun/rv-isa-sec/blob/master/output/riscv-isa-ma= nual/pr-2635/qemu.txt Signed-off-by: Zishun Yi Reviewed-by: Daniel Henrique Barboza Message-ID: <20260511051736.2916225-1-vulab@iscas.ac.cn> Signed-off-by: Alistair Francis --- target/riscv/cpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 506a018d52..8be06640e5 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -2542,7 +2542,7 @@ static RISCVCPUImpliedExtsRule ZVKNG_IMPLIED =3D { static RISCVCPUImpliedExtsRule ZVKNHB_IMPLIED =3D { .ext =3D CPU_CFG_OFFSET(ext_zvknhb), .implied_multi_exts =3D { - CPU_CFG_OFFSET(ext_zve64x), + CPU_CFG_OFFSET(ext_zve64x), CPU_CFG_OFFSET(ext_zvknha), =20 RISCV_IMPLIED_EXTS_RULE_END }, --=20 2.53.0