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Wed, 14 Feb 2024 04:38:14 -0800 (PST) X-Forwarded-Encrypted: i=1; AJvYcCVki2Z3WrTpY40NRvm8tEbiYTni2BOP+Vz/m0jnkq1LJ5nIO+BXlYi1+YpL55P6nAAeZ70tS6rcQ9FXBc3LngUk1k5rap6lkZDxjXcts6p25eXLJDfrYH7vS9egyGB4UHfdtL/1enUDxsGQhB+OI80ygbonY7xSQ64wveTP7NsHYgjG5ApUhwmP3Rhzv+qeKdHkfrgeOQHom7tgaE6ui7DbZayXPXniP3TFPS5Uu7E2sjC02J19Jd+MMwctwL9ae1I2h7DIr9BCekEbCMx/1AiUv4xIM/eYG2FTJJPp/HKszsYT8lcYdkaCYxNlCgP7Pq60zX306awYmLYC4LXuI6hvQ/LWXp4r16jEs6NgAfdlLjGPeotzI52MIwUqO5jWp1uTmrPuRVKHejbViJrghAPCZryiembfyb62EeNV7B5Z1eWNyeJDtBjasn0tww== Received: from anup-ubuntu-vm.localdomain ([171.76.87.178]) by smtp.gmail.com with ESMTPSA id o20-20020a170902e29400b001d9b749d281sm3041419plc.53.2024.02.14.04.38.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Feb 2024 04:38:14 -0800 (PST) From: Anup Patel To: Paolo Bonzini , Atish Patra , Shuah Khan Cc: Palmer Dabbelt , Paul Walmsley , Andrew Jones , Anup Patel , kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, Anup Patel Subject: [PATCH 2/5] RISC-V: KVM: Allow Ztso extension for Guest/VM Date: Wed, 14 Feb 2024 18:07:54 +0530 Message-Id: <20240214123757.305347-3-apatel@ventanamicro.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240214123757.305347-1-apatel@ventanamicro.com> References: <20240214123757.305347-1-apatel@ventanamicro.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240214_043816_883786_5CA66E72 X-CRM114-Status: UNSURE ( 8.17 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.2 (/) X-Spam-Report: Spam detection software, running on the system "bombadil.infradead.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: We extend the KVM ISA extension ONE_REG interface to allow KVM user space to detect and enable Ztso extension for Guest/VM. Signed-off-by: Anup Patel --- arch/riscv/include/uapi/asm/kvm.h | 1 + arch/riscv/kvm/vcpu_onereg.c | 2 ++ 2 files changed, 3 insertions(+) Content analysis details: (-0.2 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:630 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.0 T_SCC_BODY_TEXT_LINE No description available. 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: , Sender: "kvm-riscv" Errors-To: kvm-riscv-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org We extend the KVM ISA extension ONE_REG interface to allow KVM user space to detect and enable Ztso extension for Guest/VM. Signed-off-by: Anup Patel Reviewed-by: Andrew Jones --- arch/riscv/include/uapi/asm/kvm.h | 1 + arch/riscv/kvm/vcpu_onereg.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h index 7499e88a947c..f8aa9f2ace95 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -166,6 +166,7 @@ enum KVM_RISCV_ISA_EXT_ID { KVM_RISCV_ISA_EXT_ZVFH, KVM_RISCV_ISA_EXT_ZVFHMIN, KVM_RISCV_ISA_EXT_ZFA, + KVM_RISCV_ISA_EXT_ZTSO, KVM_RISCV_ISA_EXT_MAX, }; diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c index 5f7355e96008..38f5cf286087 100644 --- a/arch/riscv/kvm/vcpu_onereg.c +++ b/arch/riscv/kvm/vcpu_onereg.c @@ -66,6 +66,7 @@ static const unsigned long kvm_isa_ext_arr[] = { KVM_ISA_EXT_ARR(ZKSED), KVM_ISA_EXT_ARR(ZKSH), KVM_ISA_EXT_ARR(ZKT), + KVM_ISA_EXT_ARR(ZTSO), KVM_ISA_EXT_ARR(ZVBB), KVM_ISA_EXT_ARR(ZVBC), KVM_ISA_EXT_ARR(ZVFH), @@ -141,6 +142,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext) case KVM_RISCV_ISA_EXT_ZKSED: case KVM_RISCV_ISA_EXT_ZKSH: case KVM_RISCV_ISA_EXT_ZKT: + case KVM_RISCV_ISA_EXT_ZTSO: case KVM_RISCV_ISA_EXT_ZVBB: case KVM_RISCV_ISA_EXT_ZVBC: case KVM_RISCV_ISA_EXT_ZVFH: