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

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Date:   Thu, 18 Nov 2021 13:03:30 -0800
From:   Sathyanarayanan Kuppuswamy 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        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>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/1] x86/tdx: Don't write CSTAR MSR on Intel



On 11/18/21 1:02 PM, Thomas Gleixner 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?

Yes. It should be static. I will fix it.

-- 
Sathyanarayanan Kuppuswamy
Linux Kernel Developer