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Wed, 19 Apr 2023 15:18:47 -0700 (PDT) Received: from atishp.ba.rivosinc.com ([66.220.2.162]) by smtp.gmail.com with ESMTPSA id jn11-20020a170903050b00b00196807b5189sm11619190plb.292.2023.04.19.15.18.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Apr 2023 15:18:47 -0700 (PDT) From: Atish Patra To: linux-kernel@vger.kernel.org Cc: Atish Patra , Alexandre Ghiti , Andrew Jones , Andrew Morton , Anup Patel , Atish Patra , =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= , Suzuki K Poulose , Will Deacon , Marc Zyngier , Sean Christopherson , linux-coco@lists.linux.dev, Dylan Reid , abrestic@rivosinc.com, Samuel Ortiz , Christoph Hellwig , Conor Dooley , Greg Kroah-Hartman , Guo Ren , Heiko Stuebner , Jiri Slaby , kvm-riscv@lists.infradead.org, kvm@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, Mayuresh Chitale , Palmer Dabbelt , Paolo Bonzini , Paul Walmsley , Rajnesh Kanwal , Uladzislau Rezki Subject: [RFC 35/48] RISC-V: KVM: Add TVM init/destroy calls Date: Wed, 19 Apr 2023 15:17:03 -0700 Message-Id: <20230419221716.3603068-36-atishp@rivosinc.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230419221716.3603068-1-atishp@rivosinc.com> References: <20230419221716.3603068-1-atishp@rivosinc.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Queue-Id: 89CCA80004 X-Rspamd-Server: rspam09 X-Stat-Signature: nx7inquo36o74ncqnfys48z53zmdw8y6 X-HE-Tag: 1681942728-230994 X-HE-Meta: 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 7B/6IHE/ B3KZ+OuA4PS3vByxlfFovsz6w1bmLlUhsr66GUOUG0X6oVaP1MBPHiEAKz9rt0gCK7ZrZTRDpkdukUO8VkfGRuQyhKhMZjS6wKRqOjpPKRm92GlGhGEb6ykVPVGt4kLKuvV3hbPVrsGXwCge2KtfP4P2ef/YcxKH50Je/ncIe5xUBqQ+0+OwuGB4uQ89NqN6/7Cwn/82Nnc8UM2f1nWZoN03Ke2z2TzvWwPnoXSC8sDdIVI6wAK2Ptnqy6m7lEX+XgWxGBUZoILyl4cn7h2e0rgWBBHA1Zx46L9lBC4Ih1FLdHOY9CatRq3Kfha2HrPCKIW3dGq8gssqaX4n9hJp3dG17hEUhGZS62f8IIDO7A61YVJDchflC1x9dyT6jeBfJOQhxoOVKNVuE6rnqRARqZDAmIf9QiCzDRNfew6LkM+FHIbyR2y8MSL5vSTOzYiZlk5qsXkC+vrFNMxdzmocKFYf3yg== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: A TVM can only be created upon explicit request from the VMM via the vm type if CoVE SBI extensions must supported by the TSM. Signed-off-by: Atish Patra --- arch/riscv/kvm/vm.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/riscv/kvm/vm.c b/arch/riscv/kvm/vm.c index 1b59a8f..8a1460d 100644 --- a/arch/riscv/kvm/vm.c +++ b/arch/riscv/kvm/vm.c @@ -42,6 +42,19 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) return r; } + if (unlikely(type == KVM_VM_TYPE_RISCV_COVE)) { + if (!kvm_riscv_cove_enabled()) { + kvm_err("Unable to init CoVE VM because cove is not enabled\n"); + return -EPERM; + } + + r = kvm_riscv_cove_vm_init(kvm); + if (r) + return r; + kvm->arch.vm_type = type; + kvm_info("Trusted VM instance init successful\n"); + } + kvm_riscv_aia_init_vm(kvm); kvm_riscv_guest_timer_init(kvm); @@ -54,6 +67,9 @@ void kvm_arch_destroy_vm(struct kvm *kvm) kvm_destroy_vcpus(kvm); kvm_riscv_aia_destroy_vm(kvm); + + if (unlikely(is_cove_vm(kvm))) + kvm_riscv_cove_vm_destroy(kvm); } int kvm_vm_ioctl_irq_line(struct kvm *kvm, struct kvm_irq_level *irql, -- 2.25.1