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[59.124.168.89]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2e06e16d6d2sm5671744a91.2.2024.09.27.06.41.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Sep 2024 06:42:02 -0700 (PDT) From: Max Hsu Date: Fri, 27 Sep 2024 21:41:45 +0800 Subject: [PATCH RFC v2 3/3] riscv: KVM: Add Svukte extension support for Guest/VM Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240927-dev-maxh-svukte-rebase-2-v2-3-9afe57c33aee@sifive.com> References: <20240927-dev-maxh-svukte-rebase-2-v2-0-9afe57c33aee@sifive.com> In-Reply-To: <20240927-dev-maxh-svukte-rebase-2-v2-0-9afe57c33aee@sifive.com> To: Conor Dooley , Rob Herring , Krzysztof Kozlowski , Paul Walmsley , Palmer Dabbelt , Albert Ou , Anup Patel , Atish Patra Cc: Palmer Dabbelt , linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, Max Hsu , Samuel Holland X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1319; i=max.hsu@sifive.com; h=from:subject:message-id; bh=H2dmJr8hpjnnkdgnm3AAwF3pNuKwnFfGeFFtmmrBeZo=; b=owEB7QES/pANAwAKAdID/Z0HeUC9AcsmYgBm9rYes4sJwaW1iTmWxKG3SLRJr5Z3fDOKp/nPP r1gPAYhIkqJAbMEAAEKAB0WIQTqXmcbOhS2KZE9X2jSA/2dB3lAvQUCZva2HgAKCRDSA/2dB3lA vZKLDACjqALjcui0yixfAk8cbQoV1qFAyPq+nTRdcdPTXxLhILdaqfUlPv9CLYgqa7eAaH552UC NiUQhYWFy8tMiCIXlrWxyd0Iqb6MA0pWfK4theLS387K53ksc+zOqyi6CTn577rOnPSQwj8fyQp R7ZHBbhrmhVX/5utgfHYq5/fBZidQZ1TQ3IpZAHhnvZnPyIU+UK6VmYWvX6nV07vWdrKav38cdE KhFePJCjH8+PlBFcZ0MiT+aNLuuDXR/XThWVMmKYFWbHsNid8CpsT3RiLQ0L2xts5+CNcCj5RYR ghY8YIOYAo0G1DnOFuHzScYZJR3o8kDOyjN8IC1MoC8Ij1Jr3lssqox+LO6DpcW1AntxX6MBxdv eRYh5zaGEUxNPyM/02zDRaeWP7ALiEW/0AQDcE8nftpjJW9HHTTxYrlqa4r8ZanX1BDbf+tRdvc X1j6INMFoYcTVCW0n07gCVQbEQsERGTori81rVtD3yyrzMZwJypmrcXisQIa2KzG/NN+I= X-Developer-Key: i=max.hsu@sifive.com; a=openpgp; fpr=EA5E671B3A14B629913D5F68D203FD9D077940BD Add KVM ISA extension ONE_REG interface to allow VMM tools to detect and enable Svukte extension for Guest/VM. Reviewed-by: Samuel Holland Signed-off-by: Max Hsu --- arch/riscv/include/uapi/asm/kvm.h | 1 + arch/riscv/kvm/vcpu_onereg.c | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/as= m/kvm.h index e97db3296456e19f79ca02e4c4f70ae1b4abb48b..41b466b7ffaec421e8389d3f5b1= 78580091a2c98 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -175,6 +175,7 @@ enum KVM_RISCV_ISA_EXT_ID { KVM_RISCV_ISA_EXT_ZCF, KVM_RISCV_ISA_EXT_ZCMOP, KVM_RISCV_ISA_EXT_ZAWRS, + KVM_RISCV_ISA_EXT_SVUKTE, KVM_RISCV_ISA_EXT_MAX, }; =20 diff --git a/arch/riscv/kvm/vcpu_onereg.c b/arch/riscv/kvm/vcpu_onereg.c index b319c4c13c54ce22d2a7552f4c9f256a0c50780e..67237d6e53882a9fcd2cf265aa1= 704f25cc4a701 100644 --- a/arch/riscv/kvm/vcpu_onereg.c +++ b/arch/riscv/kvm/vcpu_onereg.c @@ -41,6 +41,7 @@ static const unsigned long kvm_isa_ext_arr[] =3D { KVM_ISA_EXT_ARR(SVINVAL), KVM_ISA_EXT_ARR(SVNAPOT), KVM_ISA_EXT_ARR(SVPBMT), + KVM_ISA_EXT_ARR(SVUKTE), KVM_ISA_EXT_ARR(ZACAS), KVM_ISA_EXT_ARR(ZAWRS), KVM_ISA_EXT_ARR(ZBA), --=20 2.43.2