Re: [PATCH v5 5/6] x86/tdx: Add a helper to query maximum Quote size

[Peter Fang]

On Mon, Sep 28, 2026 at 02:25:16PM -0700, Edgecombe, Rick P wrote:
> On Mon, 2026-09-28 at 14:13 -0700, Peter Fang wrote:
> > On Mon, Sep 28, 2026 at 11:50:32AM -0700, Edgecombe, Rick P wrote:
> > > On Mon, 2026-09-28 at 03:08 -0700, Peter Fang wrote:
> > > > [1] Intel TDX Module ABI Definitions, August 2026, TD-scope metadata
> > > >     field "TD_QUOTE_MAX_SIZE"
> > > 
> > > The latest seems to be June 2026:
> > > https://www.intel.com/content/www/us/en/developer/tools/trust-domain-extensions/documentation.html
> > 
> > I think that's "Intel TDX Module ABI Specification". "Intel TDX Module
> > ABI Definitions" was updated in August. Yeah these names can be
> > confusing sometimes.
> 
> I see: Intel TDX Module ABI Definitions - ABI definitions in PDF, CSV and JSON
> format - June 2026
> 
> Ah! There are two listed: one from June and one from August. The August ones are
> still labeled for community review. "These documents are not final and are
> subject to change based on feedback."
> 
> This means that we are upstreaming head of the spec being finalized. And TDX
> module will not be able to change anything we depend on. We need to make sure
> they know what we are locked onto.

Yep, once locked in any additional incompatible change will be flagged
as a bug.

>