linux-kernel - Re: [PATCH v9 04/19] x86: Secure Launch Resource Table header file

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Date: Wed, 05 Jun 2024 01:36:22 +0300
From: "Jarkko Sakkinen" <jarkko@...nel.org>
To: <ross.philipson@...cle.com>, <linux-kernel@...r.kernel.org>,
 <x86@...nel.org>, <linux-integrity@...r.kernel.org>,
 <linux-doc@...r.kernel.org>, <linux-crypto@...r.kernel.org>,
 <kexec@...ts.infradead.org>, <linux-efi@...r.kernel.org>,
 <iommu@...ts.linux-foundation.org>
Cc: <dpsmith@...rtussolutions.com>, <tglx@...utronix.de>,
 <mingo@...hat.com>, <bp@...en8.de>, <hpa@...or.com>,
 <dave.hansen@...ux.intel.com>, <ardb@...nel.org>, <mjg59@...f.ucam.org>,
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 <trenchboot-devel@...glegroups.com>
Subject: Re: [PATCH v9 04/19] x86: Secure Launch Resource Table header file

On Tue Jun 4, 2024 at 11:31 PM EEST,  wrote:
> On 6/4/24 11:21 AM, Jarkko Sakkinen wrote:
> > On Fri May 31, 2024 at 4:03 AM EEST, Ross Philipson wrote:
> >> Introduce the Secure Launch Resource Table which forms the formal
> >> interface between the pre and post launch code.
> >>
> >> Signed-off-by: Ross Philipson <ross.philipson@...cle.com>
> > 
> > If a uarch specific, I'd appreciate Intel SDM reference here so that I
> > can look it up and compare. Like in section granularity.
>
> This table is meant to not be architecture specific though it can 
> contain architecture specific sub-entities. E.g. there is a TXT specific 
> table and in the future there will be an AMD and ARM one (and hopefully 
> some others). I hope that addresses what you are pointing out or maybe I 
> don't fully understand what you mean here...

At least Intel SDM has a definition of any possible architecture
specific data structure. It is handy to also have this available
in inline comment for any possible such structure pointing out the
section where it is defined.

BR, Jarkko