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Date:   Wed, 9 Jun 2021 17:01:48 +0200
From:   Borislav Petkov <bp@alien8.de>
To:     "Kuppuswamy, Sathyanarayanan" 
        <sathyanarayanan.kuppuswamy@linux.intel.com>
Cc:     Peter Zijlstra <peterz@infradead.org>,
        Andy Lutomirski <luto@kernel.org>,
        Dave Hansen <dave.hansen@intel.com>,
        Tony Luck <tony.luck@intel.com>,
        Andi Kleen <ak@linux.intel.com>,
        Kirill Shutemov <kirill.shutemov@linux.intel.com>,
        Kuppuswamy Sathyanarayanan <knsathya@kernel.org>,
        Dan Williams <dan.j.williams@intel.com>,
        Raj Ashok <ashok.raj@intel.com>,
        Sean Christopherson <seanjc@google.com>,
        linux-kernel@vger.kernel.org,
        Tom Lendacky <thomas.lendacky@amd.com>
Subject: Re: [RFC v2-fix-v2 1/1] x86: Introduce generic protected guest
 abstraction
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On Wed, Jun 09, 2021 at 07:56:14AM -0700, Kuppuswamy, Sathyanarayanan wrote:
> And any arch which wants to support prot_guest_has() can enable above
> config option and create their own asm/protected_guest.

I wouldnt've done even that but only the x86 asm version of
protected_guest.h and left it to other arches to extend it. I don't
like "preempting" use of functionality by other arches and would
leave them to extend stuff themselves, as they see fit, but ok,
ARCH_HAS_PROTECTED_GUEST sounds clean enough to me too, so sure, that's
fine too.

Thx.

-- 
Regards/Gruss,
    Boris.

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