From nobody Sat Oct 4 01:43:48 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 1AF132F6181; Thu, 21 Aug 2025 14:02:06 +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=1755784929; cv=none; b=shrcc76fZpL1hLX2bXeqOO/lR+cNdf2N3Rrnt3pmcT1RHDfXRGgkrFyhexWxmOLhJxZcnjdj8MW2Q9nwxqUk/ad0OKjp/6whg0ePEz2mO5knI41cW72Yz6LN5ey0l7gnGkUtMckK7hLafo2Jjz7pkf4BxEabtlQbwZp74ZusJQU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755784929; c=relaxed/simple; bh=jsdL7AJNNXRh3kNJfVcr9C/2adFC1awoc6/bhR7hmMM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=kMyHpfXnsLNVMQk5LZie+ZfqNgBAohR+AfRq/x/HMWxFnfOMYHlQalgnfj7NgrP9mPRIERQgQjltNx3UifxxBMdRiXyToXRU2LmqurLMmTOi/6/ZVtUhRxVREewOEZRc4JdcM6kkCG6tMy3BQJ151x6kdCpsc+S/1zzEd9m42UA= 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 [118.251.176.166]) by APP-03 (Coremail) with SMTP id rQCowABn+Xq+JqdoP8MTDg--.22469S6; Thu, 21 Aug 2025 22:01:46 +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 v1 RESEND 4/5] riscv: KVM: allow Zilsd and Zclsd extensions for Guest/VM Date: Thu, 21 Aug 2025 22:01:30 +0800 Message-Id: <20250821140131.225756-5-pincheng.plct@isrc.iscas.ac.cn> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250821140131.225756-1-pincheng.plct@isrc.iscas.ac.cn> References: <20250821140131.225756-1-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: rQCowABn+Xq+JqdoP8MTDg--.22469S6 X-Coremail-Antispam: 1UD129KBjvJXoW7Kw4ruw45tFyDtrWUCrWUCFg_yoW8Wr17pr s8CF9I9rW5C34fuas7twn8ur18Ww4UWws0ka1xur4xJFyUCry8JF1DA3W3Zr1DJay09rn5 WF1fGr18Zw45Ar7anT9S1TB71UUUUUDqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUml14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWUWVWUuwAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_JF0E3s1l82xGYI kIc2x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2 z4x0Y4vE2Ix0cI8IcVAFwI0_Gr0_Xr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F 4UJwA2z4x0Y4vEx4A2jsIE14v26r4j6F4UM28EF7xvwVC2z280aVCY1x0267AKxVW8Jr0_ Cr1UM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6x IIjxv20xvE14v26r1Y6r17McIj6I8E87Iv67AKxVWxJVW8Jr1lOx8S6xCaFVCjc4AY6r1j 6r4UM4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YVCY1x0262 8vn2kIc2xKxwCY1x0262kKe7AKxVWrXVW3AwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE 7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI 8E67AF67kF1VAFwI0_Wrv_Gr1UMIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Gr0_ Xr1lIxAIcVC0I7IYx2IY6xkF7I0E14v26r4UJVWxJr1lIxAIcVCF04k26cxKx2IYs7xG6r 1j6r1xMIIF0xvEx4A2jsIE14v26r4j6F4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr1j6F4U JbIYCTnIWIevJa73UjIFyTuYvjTRZGYpUUUUU 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