linux-kernel - Re: [sos-linux-ext-patches] [PATCH v4 1/8] KVM: SEV: Disable SEV-SNP on FW validation failure

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <9b7d7abd-ce7d-479c-89a3-7f305c0e732f@amd.com>
Date: Fri, 10 Jan 2025 10:51:28 +0530
From: "Nikunj A. Dadhania" <nikunj@....com>
To: "Pratik R. Sampat" <pratikrajesh.sampat@....com>, kvm@...r.kernel.org
Cc: seanjc@...gle.com, pbonzini@...hat.com, pgonda@...gle.com,
 thomas.lendacky@....com, michael.roth@....com, shuah@...nel.org,
 linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [sos-linux-ext-patches] [PATCH v4 1/8] KVM: SEV: Disable SEV-SNP
 on FW validation failure

On 11/15/2024 5:10 AM, Pratik R. Sampat wrote:
> On incompatible firmware versions, SEV-SNP support is pulled and the
> setup is not performed. However, the platform and subsequently the KVM
> capability may continue to advertize support for it. Disable support for
> SEV-SNP if the FW version validation fails.

Additionally, can we ensure that if sev_platform_init() fails, we do not
indicate SNP support?

Regards
Nikunj