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[114.35.142.126]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-829a4636c74sm956093b3a.12.2026.03.05.23.11.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Mar 2026 23:11:15 -0800 (PST) From: Max Chou To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Cc: Palmer Dabbelt , Alistair Francis , Weiwei Li , Daniel Henrique Barboza , Liu Zhiwei , Chao Liu , Max Chou , Daniel Henrique Barboza , Nutty Liu Subject: [PATCH v5 2/9] target/riscv: Add the Zvfbfa extension implied rule Date: Fri, 6 Mar 2026 15:10:57 +0800 Message-ID: <20260306071105.3328365-3-max.chou@sifive.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260306071105.3328365-1-max.chou@sifive.com> References: <20260306071105.3328365-1-max.chou@sifive.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::42f; envelope-from=max.chou@sifive.com; helo=mail-pf1-x42f.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=unavailable 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org According to the Zvfbfa isa spec: The Zvfbfa extension requires the Zve32f and Zfbfmin extensions. Reviewed-by: Daniel Henrique Barboza Reviewed-by: Nutty Liu Reviewed-by: Chao Liu Signed-off-by: Max Chou --- target/riscv/cpu.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 2ddc26c837..376517755e 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -2619,6 +2619,15 @@ static RISCVCPUImpliedExtsRule SSCTR_IMPLIED = { }, }; +static RISCVCPUImpliedExtsRule ZVFBFA_IMPLIED = { + .ext = CPU_CFG_OFFSET(ext_zvfbfa), + .implied_multi_exts = { + CPU_CFG_OFFSET(ext_zve32f), CPU_CFG_OFFSET(ext_zfbfmin), + + RISCV_IMPLIED_EXTS_RULE_END + }, +}; + RISCVCPUImpliedExtsRule *riscv_misa_ext_implied_rules[] = { &RVA_IMPLIED, &RVD_IMPLIED, &RVF_IMPLIED, &RVM_IMPLIED, &RVV_IMPLIED, NULL @@ -2632,8 +2641,8 @@ RISCVCPUImpliedExtsRule *riscv_multi_ext_implied_rules[] = { &ZHINX_IMPLIED, &ZHINXMIN_IMPLIED, &ZICNTR_IMPLIED, &ZIHPM_IMPLIED, &ZK_IMPLIED, &ZKN_IMPLIED, &ZKS_IMPLIED, &ZVBB_IMPLIED, &ZVE32F_IMPLIED, - &ZVE32X_IMPLIED, &ZVE64D_IMPLIED, &ZVE64F_IMPLIED, - &ZVE64X_IMPLIED, &ZVFBFMIN_IMPLIED, &ZVFBFWMA_IMPLIED, + &ZVE32X_IMPLIED, &ZVE64D_IMPLIED, &ZVE64F_IMPLIED, &ZVE64X_IMPLIED, + &ZVFBFA_IMPLIED, &ZVFBFMIN_IMPLIED, &ZVFBFWMA_IMPLIED, &ZVFH_IMPLIED, &ZVFHMIN_IMPLIED, &ZVKN_IMPLIED, &ZVKNC_IMPLIED, &ZVKNG_IMPLIED, &ZVKNHB_IMPLIED, &ZVKS_IMPLIED, &ZVKSC_IMPLIED, &ZVKSG_IMPLIED, &SSCFG_IMPLIED, -- 2.52.0