linux-kernel - Re: [PATCHv7 12/14] x86/tdx: Make _tdx_hypercall() and __tdx_module

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Date:   Thu, 23 Jun 2022 10:25:11 -0700
From:   Dave Hansen <dave.hansen@...el.com>
To:     "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Borislav Petkov <bp@...en8.de>,
        Andy Lutomirski <luto@...nel.org>,
        Sean Christopherson <seanjc@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Joerg Roedel <jroedel@...e.de>,
        Ard Biesheuvel <ardb@...nel.org>
Cc:     Andi Kleen <ak@...ux.intel.com>,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        David Rientjes <rientjes@...gle.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Tom Lendacky <thomas.lendacky@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Ingo Molnar <mingo@...hat.com>,
        Varad Gautam <varad.gautam@...e.com>,
        Dario Faggioli <dfaggioli@...e.com>,
        Mike Rapoport <rppt@...nel.org>,
        David Hildenbrand <david@...hat.com>,
        marcelo.cerri@...onical.com, tim.gardner@...onical.com,
        khalid.elmously@...onical.com, philip.cox@...onical.com,
        x86@...nel.org, linux-mm@...ck.org, linux-coco@...ts.linux.dev,
        linux-efi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCHv7 12/14] x86/tdx: Make _tdx_hypercall() and
 __tdx_module_call() available in boot stub

On 6/14/22 05:02, Kirill A. Shutemov wrote:
> Memory acceptance requires a hypercall and one or multiple module calls.
> 
> Make helpers for the calls available in boot stub. It has to accept
> memory where kernel image and initrd are placed.
> 
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
> ---
>  arch/x86/coco/tdx/tdx.c           | 26 ------------------
>  arch/x86/include/asm/shared/tdx.h | 45 +++++++++++++++++++++++++++++++
>  arch/x86/include/asm/tdx.h        | 19 -------------
>  3 files changed, 45 insertions(+), 45 deletions(-)

Reviewed-by: Dave Hansen <dave.hansen@...ux.intel.com>