linux-kernel - Re: [RFC PATCH v5 10/45] x86/tdx: Move all TDX error defines into <asm/shared/tdx

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Message-ID: <4d16c259-b1f1-4e5e-adf9-115b8d1431f4@intel.com>
Date: Thu, 29 Jan 2026 10:13:42 -0800
From: Dave Hansen <dave.hansen@...el.com>
To: Sean Christopherson <seanjc@...gle.com>, Thomas Gleixner
 <tglx@...nel.org>, Ingo Molnar <mingo@...hat.com>,
 Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>,
 x86@...nel.org, Kiryl Shutsemau <kas@...nel.org>,
 Paolo Bonzini <pbonzini@...hat.com>
Cc: linux-kernel@...r.kernel.org, linux-coco@...ts.linux.dev,
 kvm@...r.kernel.org, Kai Huang <kai.huang@...el.com>,
 Rick Edgecombe <rick.p.edgecombe@...el.com>, Yan Zhao
 <yan.y.zhao@...el.com>, Vishal Annapurve <vannapurve@...gle.com>,
 Ackerley Tng <ackerleytng@...gle.com>, Sagi Shahar <sagis@...gle.com>,
 Binbin Wu <binbin.wu@...ux.intel.com>, Xiaoyao Li <xiaoyao.li@...el.com>,
 Isaku Yamahata <isaku.yamahata@...el.com>
Subject: Re: [RFC PATCH v5 10/45] x86/tdx: Move all TDX error defines into
 <asm/shared/tdx_errno.h>

On 1/28/26 17:14, Sean Christopherson wrote:
...
> "asm/shared" is used for sharing TDX code between the early compressed
> code and the normal kernel code. While the compressed code for the guest
> doesn't use these error code header definitions today, it does make the
> types of calls that return the values they define. So place the defines in
> "shared" location so that it can, but leave such cleanups for future
> changes.

This is beating around the bush a bit. Should this read:

	Place the new header is in "asm/shared". It doesn't need to be
	there, but Google's kernel fork has early compressed use of
	these things and mainline will too soon.

or what? Can we be more direct, please?