linux-kernel - Re: [PATCH 0/2] TDX attestation support

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Message-ID: <6cc63871-e739-49ef-8bef-e2799fc3f83f@linux.intel.com>
Date: Fri, 11 Apr 2025 09:42:30 +0800
From: Binbin Wu <binbin.wu@...ux.intel.com>
To: "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>,
 "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
 "pbonzini@...hat.com" <pbonzini@...hat.com>,
 "seanjc@...gle.com" <seanjc@...gle.com>
Cc: "Gao, Chao" <chao.gao@...el.com>,
 "mikko.ylinen@...ux.intel.com" <mikko.ylinen@...ux.intel.com>,
 "Huang, Kai" <kai.huang@...el.com>, "Li, Xiaoyao" <xiaoyao.li@...el.com>,
 "Lindgren, Tony" <tony.lindgren@...el.com>,
 "Hunter, Adrian" <adrian.hunter@...el.com>,
 "Chatre, Reinette" <reinette.chatre@...el.com>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
 "Zhao, Yan Y" <yan.y.zhao@...el.com>,
 "Yamahata, Isaku" <isaku.yamahata@...el.com>
Subject: Re: [PATCH 0/2] TDX attestation support



On 4/2/2025 8:20 AM, Edgecombe, Rick P wrote:
> On Wed, 2025-04-02 at 08:15 +0800, Binbin Wu wrote:
>> Opens
>> =====
>> Linux TDX guests don't use SetupEventNotifyInterrupt for TD attestation
>> currently. If no other TDX guests use it, the support for
>> SetupEventNotifyInterrupt could be dropped. But it would require an opt-in
>> if the support is added later.
> I think we shouldn't be afraid of opt-ins. We will need one sooner or later.
> Better to not add the second exit with no users.
>
OK, will drop it in the next version.