linux-kernel - Re: [PATCH 3/3] KVM: VMX: Initialize TDX during KVM module load

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Message-ID: <67240b22421bb_60c32947f@dwillia2-mobl3.amr.corp.intel.com.notmuch>
Date: Thu, 31 Oct 2024 15:56:34 -0700
From: Dan Williams <dan.j.williams@...el.com>
To: "Huang, Kai" <kai.huang@...el.com>, Dan Williams
	<dan.j.williams@...el.com>, "Hansen, Dave" <dave.hansen@...el.com>,
	"seanjc@...gle.com" <seanjc@...gle.com>
CC: "Lindgren, Tony" <tony.lindgren@...el.com>, "Edgecombe, Rick P"
	<rick.p.edgecombe@...el.com>, "binbin.wu@...ux.intel.com"
	<binbin.wu@...ux.intel.com>, "Chatre, Reinette" <reinette.chatre@...el.com>,
	"Li, Xiaoyao" <xiaoyao.li@...el.com>, "Zhao, Yan Y" <yan.y.zhao@...el.com>,
	"Hunter, Adrian" <adrian.hunter@...el.com>, "kvm@...r.kernel.org"
	<kvm@...r.kernel.org>, "pbonzini@...hat.com" <pbonzini@...hat.com>,
	"Yamahata, Isaku" <isaku.yamahata@...el.com>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "kristen@...ux.intel.com"
	<kristen@...ux.intel.com>
Subject: Re: [PATCH 3/3] KVM: VMX: Initialize TDX during KVM module load

Huang, Kai wrote:
[..]
> One thing is currently INTEL_TDX_HOST depends on KVM_INTEL (with the 
> reason that for now only KVM will use TDX), we can either remove this 
> dependency together with the above diff, or we can have another patch in 
> the future to remove that when TDX Connect comes near.
> 
> I think we can leave this part to the future.

Agree, save that for later. There is latent effort to disconnect VTx
from KVM that TDX Connect is also eyeing, and I expect that work is what
allows INTEL_TDX_HOST to drop its KVM_INTEL dependency.