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Mon, 01 Jun 2026 01:44:04 -0700 (PDT) From: Inochi Amaoto To: Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Anup Patel , Atish Patra , Paolo Bonzini , Shuah Khan , Deepak Gupta , Thomas Huth , Charlie Jenkins , Sergey Matyukevich , Inochi Amaoto Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-kselftest@vger.kernel.org, Yixun Lan , Longbin Li Subject: [PATCH v2 3/7] RISC-V: KVM: Only enable Svadu extension when Guest/VM requests Date: Mon, 1 Jun 2026 16:43:31 +0800 Message-ID: <20260601084336.2601675-4-inochiama@gmail.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260601084336.2601675-1-inochiama@gmail.com> References: <20260601084336.2601675-1-inochiama@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Since the Svadu extension can be controlled by the FWFT, there is no need to enable Svadu at startup. Only enable it when it is requested. Signed-off-by: Inochi Amaoto --- arch/riscv/kvm/vcpu_config.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/riscv/kvm/vcpu_config.c b/arch/riscv/kvm/vcpu_config.c index 238418fed2b9..b2a1028106d5 100644 --- a/arch/riscv/kvm/vcpu_config.c +++ b/arch/riscv/kvm/vcpu_config.c @@ -53,10 +53,6 @@ void kvm_riscv_vcpu_config_ran_once(struct kvm_vcpu *vcpu) if (riscv_isa_extension_available(isa, ZICBOZ)) cfg->henvcfg |= ENVCFG_CBZE; - if (riscv_isa_extension_available(isa, SVADU) && - !riscv_isa_extension_available(isa, SVADE)) - cfg->henvcfg |= ENVCFG_ADUE; - if (riscv_has_extension_unlikely(RISCV_ISA_EXT_SMSTATEEN)) { cfg->hstateen0 |= SMSTATEEN0_HSENVCFG; if (riscv_isa_extension_available(isa, SSAIA)) -- 2.54.0