linux-kernel - Re: [RFC PATCH 09/21] KVM: TDX: Enable 2MB mapping size after TD is RUNNABLE

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Message-ID: <aFWM5P03NtP1FWsD@google.com>
Date: Fri, 20 Jun 2025 09:31:32 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: Yan Zhao <yan.y.zhao@...el.com>
Cc: Rick P Edgecombe <rick.p.edgecombe@...el.com>, Fan Du <fan.du@...el.com>, 
	Xiaoyao Li <xiaoyao.li@...el.com>, Kai Huang <kai.huang@...el.com>, 
	"quic_eberman@...cinc.com" <quic_eberman@...cinc.com>, Dave Hansen <dave.hansen@...el.com>, 
	"david@...hat.com" <david@...hat.com>, "thomas.lendacky@....com" <thomas.lendacky@....com>, 
	"vbabka@...e.cz" <vbabka@...e.cz>, Zhiquan1 Li <zhiquan1.li@...el.com>, 
	Kirill Shutemov <kirill.shutemov@...el.com>, "michael.roth@....com" <michael.roth@....com>, 
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Chao P Peng <chao.p.peng@...el.com>, 
	"pbonzini@...hat.com" <pbonzini@...hat.com>, Ira Weiny <ira.weiny@...el.com>, 
	Isaku Yamahata <isaku.yamahata@...el.com>, 
	"binbin.wu@...ux.intel.com" <binbin.wu@...ux.intel.com>, 
	"ackerleytng@...gle.com" <ackerleytng@...gle.com>, "kvm@...r.kernel.org" <kvm@...r.kernel.org>, 
	Vishal Annapurve <vannapurve@...gle.com>, "tabba@...gle.com" <tabba@...gle.com>, 
	"jroedel@...e.de" <jroedel@...e.de>, Jun Miao <jun.miao@...el.com>, 
	"pgonda@...gle.com" <pgonda@...gle.com>, "x86@...nel.org" <x86@...nel.org>
Subject: Re: [RFC PATCH 09/21] KVM: TDX: Enable 2MB mapping size after TD is RUNNABLE

On Wed, Jun 18, 2025, Yan Zhao wrote:
>   when an EPT violation carries an ACCEPT level info
>   KVM maps the page at map level <= the specified level.

No.  I want KVM to map at the maximal level KVM supports, irrespective of what
the guest's ACCEPT level says.  I.e. I want KVM to be able to completely ignore
the ACCEPT level.