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([2001:b07:6468:f312:5e2c:eb9a:a8b6:fd3e]) by smtp.googlemail.com with ESMTPSA id r12-20020a05600c2c4c00b003816932de9csm6125030wmg.24.2022.03.02.08.09.35 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 02 Mar 2022 08:09:44 -0800 (PST) Message-ID: <519f5e8e-18d1-43ac-ef90-0320d21c3a55@redhat.com> Date: Wed, 2 Mar 2022 17:09:34 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [PATCH v11 00/45] Add AMD Secure Nested Paging (SEV-SNP) Guest Support Content-Language: en-US To: Borislav Petkov Cc: Brijesh Singh , x86@kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-efi@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-coco@lists.linux.dev, linux-mm@kvack.org, Thomas Gleixner , Ingo Molnar , Joerg Roedel , Tom Lendacky , "H. Peter Anvin" , Ard Biesheuvel , Sean Christopherson , Vitaly Kuznetsov , Jim Mattson , Andy Lutomirski , Dave Hansen , Sergio Lopez , Peter Gonda , Peter Zijlstra , Srinivas Pandruvada , David Rientjes , Dov Murik , Tobin Feldman-Fitzthum , Michael Roth , Vlastimil Babka , "Kirill A . Shutemov" , Andi Kleen , "Dr . David Alan Gilbert" , brijesh.ksingh@gmail.com, tony.luck@intel.com, marcorr@google.com, sathyanarayanan.kuppuswamy@linux.intel.com References: <20220224165625.2175020-1-brijesh.singh@amd.com> From: Paolo Bonzini In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 3/2/22 15:22, Borislav Petkov wrote: > On Thu, Feb 24, 2022 at 10:55:40AM -0600, Brijesh Singh wrote: >> This part of Secure Encrypted Paging (SEV-SNP) series focuses on the changes >> required in a guest OS for SEV-SNP support. > > So the first 4 are KVM material. > > Paolo, what's the story here, are you gonna take them and give me an > immutable branch or do you have another idea? Sure: https://git.kernel.org/pub/scm/virt/kvm/kvm.git, branch svm-for-snp. $ git log -4 --oneline --reverse 3c95d3fab229 KVM: SVM: Define sev_features and vmpl field in the VMSA 0c86f9cf27f7 KVM: SVM: Create a separate mapping for the SEV-ES save area c5e0ec4c742d KVM: SVM: Create a separate mapping for the GHCB save area 88c955d1fc93 (HEAD -> kvm/svm-for-snp) KVM: SVM: Update the SEV-ES save area mapping Paolo