linux-kernel - Re: [PATCH 4/6] Add GHCB allocations and helpers

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Message-ID: <Ziln_Spd6KtgVqkr@google.com>
Date: Wed, 24 Apr 2024 13:13:49 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: Peter Gonda <pgonda@...gle.com>
Cc: linux-kernel@...r.kernel.org, Vishal Annapurve <vannapurve@...gle.com>, 
	Ackerley Tng <ackerleytng@...gle.com>, Paolo Bonzini <pbonzini@...hat.com>, 
	Claudio Imbrenda <imbrenda@...ux.ibm.com>, Carlos Bilbao <carlos.bilbao@....com>, 
	Tom Lendacky <thomas.lendacky@....com>, Michael Roth <michael.roth@....com>, kvm@...r.kernel.org, 
	linux-kselftest@...r.kernel.org
Subject: Re: [PATCH 4/6] Add GHCB allocations and helpers

On Tue, Apr 23, 2024, Sean Christopherson wrote:
> Oof, and doesn't SNP support effectively *require* version 2?  I.e. shouldn't
> the KVM patch[*] that adds support for the AP reset MSR protocol bump the version?
> The GHCB spec very cleary states that that's v2+.

Ah, the SNP series does bump the max version one patch later, presumably after all
mandatory features for v2 are implemented.