linux-kernel - Re: [PATCH Part2 v6 06/49] x86/sev: Add helper functions for RMPUPDATE and PSMASH instruction

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Message-ID: <Yt6ZjzCSqPv6BKfH@zn.tnic>
Date:   Mon, 25 Jul 2022 15:24:31 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     "Kalra, Ashish" <Ashish.Kalra@....com>
Cc:     "Dr. David Alan Gilbert" <dgilbert@...hat.com>,
        "x86@...nel.org" <x86@...nel.org>,
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Subject: Re: [PATCH Part2 v6 06/49] x86/sev: Add helper functions for
 RMPUPDATE and PSMASH instruction

On Tue, Jun 28, 2022 at 05:57:41PM +0000, Kalra, Ashish wrote:
> Yes, I will be adding a check for CPU family/model as following :

Why if the PPR is already kinda spelling the already architectural
pieces of the RMP entry?

"In order to assist software" it says.

So you call the specified ones by their name and the rest is __rsvd.

No need for model checks at all.

Right?

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette