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([2a01:e0a:999:a3a0:e67b:7ea9:5658:701a]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-422870e9681sm266192075e9.28.2024.06.19.04.35.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Jun 2024 04:35:58 -0700 (PDT) From: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= To: Jonathan Corbet , Paul Walmsley , Palmer Dabbelt , Albert Ou , Conor Dooley , Rob Herring , Krzysztof Kozlowski , Anup Patel , Shuah Khan Cc: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= , Atish Patra , linux-doc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-kselftest@vger.kernel.org Subject: [PATCH v7 15/16] RISC-V: KVM: Allow Zcmop extension for Guest/VM Date: Wed, 19 Jun 2024 13:35:25 +0200 Message-ID: <20240619113529.676940-16-cleger@rivosinc.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240619113529.676940-1-cleger@rivosinc.com> References: <20240619113529.676940-1-cleger@rivosinc.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240619_043600_544189_72C2C62A X-CRM114-Status: UNSURE ( 9.66 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.0 (/) X-Spam-Report: =?unknown-8bit?q?Spam_detection_software=2C_running_on_the_sy?= =?unknown-8bit?q?stem_=22bombadil=2Einfradead=2Eorg=22=2C?= =?unknown-8bit?q?_has_NOT_identified_this_incoming_email_as_spam=2E__The_ori?= =?unknown-8bit?q?ginal?= =?unknown-8bit?q?_message_has_been_attached_to_this_so_you_can_view_it_or_la?= =?unknown-8bit?q?bel?= =?unknown-8bit?q?_similar_future_email=2E__If_you_have_any_questions=2C_see?= =?unknown-8bit?q?_the_administrator_of_that_system_for_details=2E?= =?unknown-8bit?q?_?= =?unknown-8bit?q?_Content_preview=3A__Extend_the_KVM_ISA_extension_ONE=5FREG?= =?unknown-8bit?q?_interface_to_allow_KVM?= =?unknown-8bit?q?_user_space_to_detect_and_enable_Zcmop_extension_for_Guest/?= =?unknown-8bit?q?VM=2E_Signed-off-by=3A?= =?unknown-8bit?q?_Cl=C3=A9ment_L=C3=A9ger_=3Ccleger=40rivosinc=2Ecom=3E_Revi?= =?unknown-8bit?q?ewed-by=3A_Anup_Patel_=3Canup=40brainfault=2Eorg=3E?= =?unknown-8bit?q?_Acked-by=3A_Anup_Patel_=3Canup=40brainfault=2Eorg=3E_---_a?= =?unknown-8bit?q?rch/riscv/include/uapi/asm/kvm=2Eh?= =?unknown-8bit?q?_=7C_1_+_arch/riscv/kvm_=5B=2E=2E=2E=5D_?= =?unknown-8bit?q?_?= =?unknown-8bit?q?_Content_analysis_details=3A___=28-0=2E0_points=2C_5=2E0_re?= =?unknown-8bit?q?quired=29?= =?unknown-8bit?q?_?= =?unknown-8bit?q?_pts_rule_name______________description?= =?unknown-8bit?q?_----_----------------------_------------------------------?= =?unknown-8bit?q?--------------------?= =?unknown-8bit?q?_-0=2E0_RCVD=5FIN=5FDNSWL=5FNONE_____RBL=3A_Sender_listed_a?= =?unknown-8bit?q?t_https=3A//www=2Ednswl=2Eorg/=2C_no?= =?unknown-8bit?q?_trust?= =?unknown-8bit?b?IFsyYTAwOjE0NTA6NDg2NDoyMDowOjA6MDo0MzAgbGlzdGVkIGluXQ==?= =?unknown-8bit?b?IFtsaXN0LmRuc3dsLm9yZ10=?= =?unknown-8bit?q?_-0=2E0_SPF=5FPASS_______________SPF=3A_sender_matches_SPF_?= =?unknown-8bit?q?record?= =?unknown-8bit?q?_0=2E0_SPF=5FHELO=5FNONE__________SPF=3A_HELO_does_not_publ?= =?unknown-8bit?q?ish_an_SPF_Record?= =?unknown-8bit?q?_0=2E1_DKIM=5FSIGNED____________Message_has_a_DKIM_or_DK_si?= =?unknown-8bit?q?gnature=2C_not_necessarily_valid?= =?unknown-8bit?q?_-0=2E1_DKIM=5FVALID_____________Message_has_at_least_one_v?= =?unknown-8bit?q?alid_DKIM_or_DK_signature?= =?unknown-8bit?q?_-0=2E0_T=5FSCC=5FBODY=5FTEXT=5FLINE___No_description_avail?= =?unknown-8bit?q?able=2E?= 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 Extend the KVM ISA extension ONE_REG interface to allow KVM user space to detect and enable Zcmop extension for Guest/VM. Signed-off-by: Clément Léger Reviewed-by: Anup Patel Acked-by: Anup Patel --- 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 71b17a6799e6..a6215634df7c 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -173,6 +173,7 @@ enum KVM_RISCV_ISA_EXT_ID { KVM_RISCV_ISA_EXT_ZCB, KVM_RISCV_ISA_EXT_ZCD, KVM_RISCV_ISA_EXT_ZCF, + KVM_RISCV_ISA_EXT_ZCMOP, KVM_RISCV_ISA_EXT_MAX, }; diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c index f68b15b15f0e..fa5ee544bc69 100644 --- a/arch/riscv/kvm/vcpu_onereg.c +++ b/arch/riscv/kvm/vcpu_onereg.c @@ -53,6 +53,7 @@ static const unsigned long kvm_isa_ext_arr[] = { KVM_ISA_EXT_ARR(ZCB), KVM_ISA_EXT_ARR(ZCD), KVM_ISA_EXT_ARR(ZCF), + KVM_ISA_EXT_ARR(ZCMOP), KVM_ISA_EXT_ARR(ZFA), KVM_ISA_EXT_ARR(ZFH), KVM_ISA_EXT_ARR(ZFHMIN), @@ -142,6 +143,7 @@ static bool kvm_riscv_vcpu_isa_disable_allowed(unsigned long ext) case KVM_RISCV_ISA_EXT_ZCB: case KVM_RISCV_ISA_EXT_ZCD: case KVM_RISCV_ISA_EXT_ZCF: + case KVM_RISCV_ISA_EXT_ZCMOP: case KVM_RISCV_ISA_EXT_ZFA: case KVM_RISCV_ISA_EXT_ZFH: case KVM_RISCV_ISA_EXT_ZFHMIN: