linux-kernel - Re: [PATCH v3 03/12] x86/tdx: Make macros of TDCALLs consistent with the spec

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Message-ID: <20230727130008.jx3olv4pwpdsrui2@box.shutemov.name>
Date:   Thu, 27 Jul 2023 16:00:08 +0300
From:   kirill.shutemov@...ux.intel.com
To:     Kai Huang <kai.huang@...el.com>
Cc:     peterz@...radead.org, linux-kernel@...r.kernel.org,
        dave.hansen@...el.com, tglx@...utronix.de, bp@...en8.de,
        mingo@...hat.com, hpa@...or.com, x86@...nel.org, seanjc@...gle.com,
        pbonzini@...hat.com, isaku.yamahata@...el.com,
        sathyanarayanan.kuppuswamy@...ux.intel.com,
        n.borisov.lkml@...il.com
Subject: Re: [PATCH v3 03/12] x86/tdx: Make macros of TDCALLs consistent with
 the spec

On Wed, Jul 26, 2023 at 11:25:05PM +1200, Kai Huang wrote:
> The TDX spec names all TDCALLs with prefix "TDG".  Currently, the kernel
> doesn't follow such convention for the macros of those TDCALLs but uses
> prefix "TDX_" for all of them.  Although it's arguable whether the TDX
> spec names those TDCALLs properly, it's better for the kernel to follow
> the spec when naming those macros.
> 
> Change all macros of TDCALLs to make them consistent with the spec.  As
> a bonus, they get distinguished easily from the host-side SEAMCALLs,
> which all have prefix "TDH".
> 
> No functional change intended.
> 
> Signed-off-by: Kai Huang <kai.huang@...el.com>

I remember we had few back-and-forth on naming this defines. I think
matching names to the spec is helpful for future readers:

Reviewed-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>

-- 
  Kiryl Shutsemau / Kirill A. Shutemov