From nobody Fri Oct 3 19:08:04 2025 Received: from cstnet.cn (smtp81.cstnet.cn [159.226.251.81]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 23F4B3164CA; Tue, 26 Aug 2025 16:30:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.81 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756225847; cv=none; b=Or4IqRDJsx66vnsytlzSWcui/GY1xwdAAv0vy6UX2l/MaqKaUvwW9neepj2SVYgRPsnD2tRZmtZaF8ATRDP+SBnzj/B7QXvtJmjzNihECknudjmXwrKsXxV2f935xKFi2560S6W7nsbLC6GP3uO0QR3zY80DGn5cMBSPwki2CX4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756225847; c=relaxed/simple; bh=jsdL7AJNNXRh3kNJfVcr9C/2adFC1awoc6/bhR7hmMM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=SkuBQVr4lgHIfwCfFFcA/CycsNhIzEVrkffZ9fa1OE1kk67gTCgcHU+aANWqxrgdQK7PkbCp9deR3MuwQSkro0zwQWyYTZE39CKdpZhDQB6NV8gIb3ZuvLMPwjSEB1TZIpAimCvLqupjxUwdYvcSUtcNRimCKw1xvkNxP/594UE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=isrc.iscas.ac.cn; spf=pass smtp.mailfrom=isrc.iscas.ac.cn; arc=none smtp.client-ip=159.226.251.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=isrc.iscas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=isrc.iscas.ac.cn Received: from ROG.lan (unknown [118.251.176.199]) by APP-03 (Coremail) with SMTP id rQCowAD3jX8L4a1oBKJmDw--.6398S6; Wed, 27 Aug 2025 00:30:25 +0800 (CST) From: Pincheng Wang To: paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, anup@brainfault.org, pbonzini@redhat.com, shuah@kernel.org, cyan.yang@sifive.com, cleger@rivosinc.com, charlie@rivosinc.com, cuiyunhui@bytedance.com, samuel.holland@sifive.com, namcao@linutronix.de, jesse@rivosinc.com, inochiama@gmail.com, yongxuan.wang@sifive.com, ajones@ventanamicro.com, parri.andrea@gmail.com, mikisabate@gmail.com, yikming2222@gmail.com, thomas.weissschuh@linutronix.de Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, devicetree@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-kselftest@vger.kernel.org, pincheng.plct@isrc.iscas.ac.cn Subject: [PATCH v2 4/5] riscv: KVM: allow Zilsd and Zclsd extensions for Guest/VM Date: Wed, 27 Aug 2025 00:29:38 +0800 Message-Id: <20250826162939.1494021-5-pincheng.plct@isrc.iscas.ac.cn> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250826162939.1494021-1-pincheng.plct@isrc.iscas.ac.cn> References: <20250826162939.1494021-1-pincheng.plct@isrc.iscas.ac.cn> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: rQCowAD3jX8L4a1oBKJmDw--.6398S6 X-Coremail-Antispam: 1UD129KBjvJXoW7Kw4ruw45tFyDtrWUCrWUCFg_yoW8Wr17pr s8CF9I9rW5C34fuas7twn8ur18Ww4UWws0ka1xur4xJFyUCry8JF1DA3W3Zr1DJay09rn5 WF1fGr18Zw45Ar7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUmm14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWUuVWrJwAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_JF0E3s1l82xGYI kIc2x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2 z4x0Y4vE2Ix0cI8IcVAFwI0_Jr0_JF4l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F 4UJwA2z4x0Y4vEx4A2jsIE14v26r1j6r4UM28EF7xvwVC2z280aVCY1x0267AKxVW8Jr0_ Cr1UM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6x IIjxv20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_ Gr1lF7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4IIrI8v6xkF7I0E8c xan2IY04v7MxkF7I0En4kS14v26r4a6rW5MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCj c4AY6r1j6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4 CE17CEb7AF67AKxVWrXVW8Jr1lIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJVWU CwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F4UJwCI42IY6xAIw20EY4v20xvaj40_Jr 0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVW8Jr0_Cr1U YxBIdaVFxhVjvjDU0xZFpf9x0pRQJ5wUUUUU= X-CM-SenderInfo: pslquxhhqjh1xofwqxxvufhxpvfd2hldfou0/ Content-Type: text/plain; charset="utf-8" Extend the KVM ISA extension ONE_REG interface to allow KVM user space to detect and enable Zilsd and Zclsd extensions for Guest/VM. Signed-off-by: Pincheng Wang --- arch/riscv/include/uapi/asm/kvm.h | 2 ++ arch/riscv/kvm/vcpu_onereg.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/as= m/kvm.h index 5f59fd226cc5..beb7ce06dce8 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -174,6 +174,8 @@ enum KVM_RISCV_ISA_EXT_ID { KVM_RISCV_ISA_EXT_ZCD, KVM_RISCV_ISA_EXT_ZCF, KVM_RISCV_ISA_EXT_ZCMOP, + KVM_RISCV_ISA_EXT_ZCLSD, + KVM_RISCV_ISA_EXT_ZILSD, KVM_RISCV_ISA_EXT_ZAWRS, KVM_RISCV_ISA_EXT_SMNPM, KVM_RISCV_ISA_EXT_SSNPM, diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c index 2e1b646f0d61..8219769fc4a1 100644 --- a/arch/riscv/kvm/vcpu_onereg.c +++ b/arch/riscv/kvm/vcpu_onereg.c @@ -64,6 +64,7 @@ static const unsigned long kvm_isa_ext_arr[] =3D { KVM_ISA_EXT_ARR(ZCD), KVM_ISA_EXT_ARR(ZCF), KVM_ISA_EXT_ARR(ZCMOP), + KVM_ISA_EXT_ARR(ZCLSD), KVM_ISA_EXT_ARR(ZFA), KVM_ISA_EXT_ARR(ZFH), KVM_ISA_EXT_ARR(ZFHMIN), @@ -78,6 +79,7 @@ static const unsigned long kvm_isa_ext_arr[] =3D { KVM_ISA_EXT_ARR(ZIHINTPAUSE), KVM_ISA_EXT_ARR(ZIHPM), KVM_ISA_EXT_ARR(ZIMOP), + KVM_ISA_EXT_ARR(ZILSD), KVM_ISA_EXT_ARR(ZKND), KVM_ISA_EXT_ARR(ZKNE), KVM_ISA_EXT_ARR(ZKNH), --=20 2.39.5