linux-kernel - Re: [PATCH v1 1/1] x86/tdx: Don't write CSTAR MSR on Intel

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Message-ID: <878rxl41p3.ffs@tglx>
Date:   Thu, 18 Nov 2021 22:02:32 +0100
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org
Cc:     "H . Peter 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>,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/1] x86/tdx: Don't write CSTAR MSR on Intel

On Mon, Nov 15 2021 at 16:51, Kuppuswamy Sathyanarayanan wrote:
>  
>  DEFINE_PER_CPU(unsigned long, cpu_current_top_of_stack) = TOP_OF_INIT_STACK;
>  
> +/* Don't write CSTAR MSR on Intel platforms */
> +void wrmsrl_cstar(unsigned long val)

static, no?

Thanks,

        tglx