linux-kernel - Re: [PATCH v5 0/2] KVM: SEV: Add support for the ALLOWED_SEV

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] [day] [month] [year] [list]

Message-ID: <174562133546.1000664.8086467435503867991.b4-ty@google.com>
Date: Fri, 25 Apr 2025 16:23:18 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: Sean Christopherson <seanjc@...gle.com>, kvm@...r.kernel.org, linux-coco@...ts.linux.dev, 
	linux-kernel@...r.kernel.org, Kim Phillips <kim.phillips@....com>
Cc: Tom Lendacky <thomas.lendacky@....com>, Michael Roth <michael.roth@....com>, 
	Ashish Kalra <ashish.kalra@....com>, "Nikunj A . Dadhania" <nikunj@....com>, 
	Neeraj Upadhyay <Neeraj.Upadhyay@....com>, Naveen N Rao <naveen@...nel.org>, 
	Alexey Kardashevskiy <aik@....com>, Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>, 
	Paolo Bonzini <pbonzini@...hat.com>, Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>, 
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH v5 0/2] KVM: SEV: Add support for the ALLOWED_SEV_FEATURES feature

On Mon, 10 Mar 2025 15:16:01 -0500, Kim Phillips wrote:
> AMD EPYC 5th generation processors have introduced a feature that allows
> the hypervisor to control the SEV_FEATURES that are set for, or by, a
> guest [1].  ALLOWED_SEV_FEATURES can be used by the hypervisor to enforce
> that SEV-ES and SEV-SNP guests cannot enable features that the
> hypervisor does not want to be enabled.
> 
> Patch 1/2 adds support to detect the feature.
> 
> [...]

Applied to kvm-x86 svm, thanks!

[1/2] x86/cpufeatures: Add "Allowed SEV Features" Feature
      https://github.com/kvm-x86/linux/commit/67e672eb2e89
[2/2] KVM: SEV: Configure "ALLOWED_SEV_FEATURES" VMCB Field
      https://github.com/kvm-x86/linux/commit/51c4b387555d

--
https://github.com/kvm-x86/linux/tree/next