Message ID | 20230419221716.3603068-20-atishp@rivosinc.com (mailing list archive) |
---|---|
State | New |
Headers | show
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Wed, 19 Apr 2023 15:18:11 -0700 (PDT) Received: from atishp.ba.rivosinc.com ([66.220.2.162]) by smtp.gmail.com with ESMTPSA id jn11-20020a170903050b00b00196807b5189sm11619190plb.292.2023.04.19.15.18.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Apr 2023 15:18:11 -0700 (PDT) From: Atish Patra <atishp@rivosinc.com> To: linux-kernel@vger.kernel.org Cc: Atish Patra <atishp@rivosinc.com>, Alexandre Ghiti <alex@ghiti.fr>, Andrew Jones <ajones@ventanamicro.com>, Andrew Morton <akpm@linux-foundation.org>, Anup Patel <anup@brainfault.org>, Atish Patra <atishp@atishpatra.org>, =?utf-8?b?QmrDtnJuIFTDtnBlbA==?= <bjorn@rivosinc.com>, Suzuki K Poulose <suzuki.poulose@arm.com>, Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>, Sean Christopherson <seanjc@google.com>, linux-coco@lists.linux.dev, Dylan Reid <dylan@rivosinc.com>, abrestic@rivosinc.com, Samuel Ortiz <sameo@rivosinc.com>, Christoph Hellwig <hch@infradead.org>, Conor Dooley <conor.dooley@microchip.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Guo Ren <guoren@kernel.org>, Heiko Stuebner <heiko@sntech.de>, Jiri Slaby <jirislaby@kernel.org>, kvm-riscv@lists.infradead.org, kvm@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, Mayuresh Chitale <mchitale@ventanamicro.com>, Palmer Dabbelt <palmer@dabbelt.com>, Paolo Bonzini <pbonzini@redhat.com>, Paul Walmsley <paul.walmsley@sifive.com>, Rajnesh Kanwal <rkanwal@rivosinc.com>, Uladzislau Rezki <urezki@gmail.com> Subject: [RFC 19/48] RISC-V: KVM: Register memory regions as confidential for TVMs Date: Wed, 19 Apr 2023 15:16:47 -0700 Message-Id: <20230419221716.3603068-20-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: 32FF51C001D X-Rspamd-Server: rspam01 X-Stat-Signature: s7y1xmoqbf54yxpimpmj5gw1fsp6acyh X-HE-Tag: 1681942692-447195 X-HE-Meta: U2FsdGVkX1/D6hVF+MveRcR5kFBk1+9aG2HRhMCOs59cJ69W2kiiMvl/Nogzw9W7ZPFgZVZN/z9g1xidkkiQUzfFIE4Ak4pf5lGEOrHONnFOyPVFYdVGBQs7jVLpXNJy58xM90e8nFFimY9D3wCy1eBtMhj71ZM4yhcSrkJVwBPiir5kIkrf4ZBU80Yngx/R8HBy+C61RVKZ2o3L+on3lbtSPCmcN2E8xymeca6waZWdCf0ynNwuQX8tU8LXmsT5eReyhbkh/gAsiyqY6nvKkCSR8aXkGbWcl1WIQKaLyUkRX9NK5pkjNtk521y4ATVmWvJXG3qZE6JamRumWBSk2rwyVVgxwQ823TREH9QSx0qaEeSViSr8ylzCSUBdpbmyQh2Hvex6og5zmaFIH5vDs1lCdh/QwRV0Dz9UOXb0Ty8jQBx1zxzccNSuPEzqzjWSoXQrJYsTEsLHjr0osQVQaNmGSZ9eHrdZOXr6530GDvtjpPe8HgkaaB1SxWo4i5HRtdzbNKdTpMPxA2V7UrxegqskDJ0Uc8sLNc3TTmYmF7Ik7I/eUDwDBh3hqKWC11p8ow7VUM84tMgDWUo+8NRxhmTg3Z7Rx6PM6Ea7K8kVAQWTr0Y4KemJn2BnCmCCCjamSgjqp4OxRkBH9NitUfm49BfL4x1oYOpIu3Au0EbsK/FAGwtEm6EgFCouAhJ8LV3u8/NrRkds5ElC2zZ/HvjrW+4c3i6i8I8nrL9kXE5grQcG/qG0iHJL7rsTfw8c9yMcq3dP/VqcUS/AbiWymk8vHtoBvIwAjupRtEADfN/46qFqAOa8DXqklChtUjIExqUbpqjjjtPfham475ZD+h+wwmLvuf1MUOvYjQFmB0VUEj9bhig3lmqC0al5rin+4qZ4z/4sTv1Ix9QbFzQzRJG/IqsiaY/OL4C0EF8SxCBI7y5CGn1umQy2HZhMoEwi6XN+BoXNNNNLNCrstz15O5P vfv8gu1O TDZrUeAQmXWw1ojCUr3Op5RuGZ8vfavrc7k+Ddgpes82rRZCrquE7hmTx+4KCbeBEPlAvvVU3gtIb5nLh+kEZ43DMEMhCdKmmbD4njSYEKkLcwr99m6QS0tZfl5XXllXZMpRpweFo3xbg75R7bx5jGBtLqNmS4sJd/t6i9TBfKvtsMHHtAvbCeYnMTRTNaP4R/ogUvJGXb7XSJH1YpRvzlO4u/FLsy5dYC7oYiJAVHWAp51ULPdeZL+zEKJ9VFzGQgP7Govnk/oUh9x3hqlEj6vTEq7mmu+e/XpyE3qzG6ncMUyrzoiMmIHf9hri/Gj+fI7aue9giSxqIjPSCsKfba+k6xfostX/p6PXbCtlVYwXTE/041KGHTV1CbKzvMqC0oHKF8SK2Ktj1rVMfmdWy8BuvsxtnmAZ7mU5xvoKmLhNIu8eeLlwH6BMu1m3L8yvnLpieANUDo++l5VVrEzpptm3wQA== 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: <linux-mm.kvack.org> |
Series |
RISC-V CoVE support
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expand
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diff --git a/arch/riscv/kvm/mmu.c b/arch/riscv/kvm/mmu.c index 4b0f09e..63889d9 100644 --- a/arch/riscv/kvm/mmu.c +++ b/arch/riscv/kvm/mmu.c @@ -499,6 +499,11 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm, mmap_read_lock(current->mm); + if (is_cove_vm(kvm)) { + ret = kvm_riscv_cove_vm_add_memreg(kvm, base_gpa, size); + if (ret) + return ret; + } /* * A memory region could potentially cover multiple VMAs, and * any holes between them, so iterate over all of them to find
The entire DRAM region of a TVM running in CoVE must be confidential by default. If a TVM wishes to share any sub-region, the TVM has to request it explicitly with memory share APIs. Mark the memory region as confidential during vm create itself. Signed-off-by: Atish Patra <atishp@rivosinc.com> --- arch/riscv/kvm/mmu.c | 5 +++++ 1 file changed, 5 insertions(+)