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Sun, 05 Jul 2026 19:21:39 -0700 (PDT) Received: from localhost ([2001:da8:7001:11::cb]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2cad7126971sm39828005ad.18.2026.07.05.19.21.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 05 Jul 2026 19:21:38 -0700 (PDT) From: Inochi Amaoto To: Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Anup Patel , Atish Patra , Paolo Bonzini , Shuah Khan , Charlie Jenkins , Sergey Matyukevich , Thomas Huth , Inochi Amaoto , Deepak Gupta 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 , Quan Zhou Subject: [PATCH v5 3/8] RISC-V: KVM: Allow Zicfiss/Zicfilp extensions for Guest/VM Date: Mon, 6 Jul 2026 10:20:39 +0800 Message-ID: <20260706022046.214956-4-inochiama@gmail.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260706022046.214956-1-inochiama@gmail.com> References: <20260706022046.214956-1-inochiama@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260705_192140_906985_EAE0F703 X-CRM114-Status: UNSURE ( 8.05 ) X-CRM114-Notice: Please train this message. X-BeenThere: kvm-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kvm-riscv" Errors-To: kvm-riscv-bounces+kvm-riscv=archiver.kernel.org@lists.infradead.org Extend the KVM ISA extension array to allow KVM userspace to detect and enable Zicfiss/Zicfilp extensions for Guest/VM. Assisted-by: YuanSheng:claude-4.7-opus Co-developed-by: Quan Zhou Signed-off-by: Quan Zhou Signed-off-by: Inochi Amaoto --- arch/riscv/include/uapi/asm/kvm.h | 2 ++ arch/riscv/kvm/isa.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h index 7bbea8812d92..a27de850fa4c 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -199,6 +199,8 @@ enum KVM_RISCV_ISA_EXT_ID { KVM_RISCV_ISA_EXT_ZCLSD, KVM_RISCV_ISA_EXT_ZILSD, KVM_RISCV_ISA_EXT_ZALASR, + KVM_RISCV_ISA_EXT_ZICFILP, + KVM_RISCV_ISA_EXT_ZICFISS, KVM_RISCV_ISA_EXT_MAX, }; diff --git a/arch/riscv/kvm/isa.c b/arch/riscv/kvm/isa.c index 1132d909cc25..9852a91fdecc 100644 --- a/arch/riscv/kvm/isa.c +++ b/arch/riscv/kvm/isa.c @@ -65,6 +65,8 @@ static const unsigned long kvm_isa_ext_arr[] = { KVM_ISA_EXT_ARR(ZICBOP), KVM_ISA_EXT_ARR(ZICBOZ), KVM_ISA_EXT_ARR(ZICCRSE), + KVM_ISA_EXT_ARR(ZICFILP), + KVM_ISA_EXT_ARR(ZICFISS), KVM_ISA_EXT_ARR(ZICNTR), KVM_ISA_EXT_ARR(ZICOND), KVM_ISA_EXT_ARR(ZICSR), -- 2.55.0 -- kvm-riscv mailing list kvm-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kvm-riscv