Re: [PATCH Part2 RFC v4 04/40] x86/sev: Add the host SEV-SNP initialization support

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To: Sean Christopherson <seanjc@xxxxxxxxxx>
Subject: Re: [PATCH Part2 RFC v4 04/40] x86/sev: Add the host SEV-SNP initialization support
From: Brijesh Singh <brijesh.singh@xxxxxxx>
Date: Wed, 14 Jul 2021 17:11:18 -0500
Cc: brijesh.singh@xxxxxxx, x86@xxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, kvm@xxxxxxxxxxxxxxx, linux-efi@xxxxxxxxxxxxxxx, platform-driver-x86@xxxxxxxxxxxxxxx, linux-coco@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-crypto@xxxxxxxxxxxxxxx, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Joerg Roedel <jroedel@xxxxxxx>, Tom Lendacky <thomas.lendacky@xxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Ard Biesheuvel <ardb@xxxxxxxxxx>, Paolo Bonzini <pbonzini@xxxxxxxxxx>, Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>, Wanpeng Li <wanpengli@xxxxxxxxxxx>, Jim Mattson <jmattson@xxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, Sergio Lopez <slp@xxxxxxxxxx>, Peter Gonda <pgonda@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx>, David Rientjes <rientjes@xxxxxxxxxx>, Dov Murik <dovmurik@xxxxxxxxxxxxx>, Tobin Feldman-Fitzthum <tobin@xxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Michael Roth <michael.roth@xxxxxxx>, Vlastimil Babka <vbabka@xxxxxxx>, tony.luck@xxxxxxxxx, npmccallum@xxxxxxxxxx, brijesh.ksingh@xxxxxxxxx
In-reply-to: <YO9f63RwTckAEZ1n@google.com>
References: <20210707183616.5620-1-brijesh.singh@amd.com> <20210707183616.5620-5-brijesh.singh@amd.com> <YO9SGT6byW8w37oO@google.com> <31e57173-449a-6112-30ac-5b115dda1dbb@amd.com> <YO9f63RwTckAEZ1n@google.com>
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On 7/14/21 5:06 PM, Sean Christopherson wrote:

What's the PPR?  I get the feeling I'm missing a spec:-)


My bad, I should have provided the link in my previous response

Processor Programming Reference (PPR) for AMD Family 19h Model 01h,Revision B1 Processors


https://www.amd.com/system/files/TechDocs/55898_B1_pub_0.50.zip

look for the PPR_B1_PUB_1.pdf for RMP entry details.

SEV-SNP firmware spec is at developer.amd.com/sev
https://www.amd.com/system/files/TechDocs/56860.pdf

thanks

References:
- [PATCH Part2 RFC v4 00/40] Add AMD Secure Nested Paging (SEV-SNP) Hypervisor Support
  - From: Brijesh Singh
- [PATCH Part2 RFC v4 04/40] x86/sev: Add the host SEV-SNP initialization support
  - From: Brijesh Singh
- Re: [PATCH Part2 RFC v4 04/40] x86/sev: Add the host SEV-SNP initialization support
  - From: Sean Christopherson
- Re: [PATCH Part2 RFC v4 04/40] x86/sev: Add the host SEV-SNP initialization support
  - From: Brijesh Singh
- Re: [PATCH Part2 RFC v4 04/40] x86/sev: Add the host SEV-SNP initialization support
  - From: Sean Christopherson

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