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[35.185.214.157]) by smtp.gmail.com with ESMTPSA id bf18sm3109402pjb.46.2021.07.14.15.06.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Jul 2021 15:06:39 -0700 (PDT) Date: Wed, 14 Jul 2021 22:06:35 +0000 From: Sean Christopherson To: Brijesh Singh Cc: 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, linux-crypto@vger.kernel.org, Thomas Gleixner , Ingo Molnar , Joerg Roedel , Tom Lendacky , "H. Peter Anvin" , Ard Biesheuvel , Paolo Bonzini , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Andy Lutomirski , Dave Hansen , Sergio Lopez , Peter Gonda , Peter Zijlstra , Srinivas Pandruvada , David Rientjes , Dov Murik , Tobin Feldman-Fitzthum , Borislav Petkov , Michael Roth , Vlastimil Babka , tony.luck@intel.com, npmccallum@redhat.com, brijesh.ksingh@gmail.com Subject: Re: [PATCH Part2 RFC v4 04/40] x86/sev: Add the host SEV-SNP initialization support Message-ID: References: <20210707183616.5620-1-brijesh.singh@amd.com> <20210707183616.5620-5-brijesh.singh@amd.com> <31e57173-449a-6112-30ac-5b115dda1dbb@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <31e57173-449a-6112-30ac-5b115dda1dbb@amd.com> X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 3251A7001714 X-Stat-Signature: w86tgd73oeiw8dnnunktewchubbwzb7k Authentication-Results: imf02.hostedemail.com; dkim=pass header.d=google.com header.s=20161025 header.b=fL0PZANA; dmarc=pass (policy=reject) header.from=google.com; spf=pass (imf02.hostedemail.com: domain of seanjc@google.com designates 209.85.216.43 as permitted sender) smtp.mailfrom=seanjc@google.com X-HE-Tag: 1626300401-329670 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: On Wed, Jul 14, 2021, Brijesh Singh wrote: > The bookkeeping region is at the start of the RMP_BASE. If we look at the > PPR then it provides a formula which we should use to read the RMP entry What's the PPR? I get the feeling I'm missing a spec :-)