linux-kernel - Re: [PATCH v5 04/12] x86/tdx: Add protected guest support for TDX guest

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Message-ID: <486afc0e-0396-e57b-63fe-31a8433bd603@linux.intel.com>
Date:   Thu, 12 Aug 2021 10:18:39 -0700
From:   "Kuppuswamy, Sathyanarayanan" 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>
To:     Borislav Petkov <bp@...en8.de>
Cc:     Sean Christopherson <seanjc@...gle.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Andy Lutomirski <luto@...nel.org>,
        Peter H Anvin <hpa@...or.com>,
        Tony Luck <tony.luck@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Kirill Shutemov <kirill.shutemov@...ux.intel.com>,
        Kuppuswamy Sathyanarayanan <knsathya@...nel.org>,
        x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 04/12] x86/tdx: Add protected guest support for TDX
 guest



On 8/12/21 12:53 AM, Borislav Petkov wrote:
>>> Given amd_prot_guest_has(), my guess is Boris intended intel_prot_guest_has()...
> Yap, exactly.

I can implement intel_prot_guest_has() in arch/x86/kernel/cpu/intel.c. And call
tdx_prot_guest_has() from it.

-- 
Sathyanarayanan Kuppuswamy
Linux Kernel Developer