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Date:   Wed, 23 Feb 2022 11:56:19 +0100
From:   Borislav Petkov <bp@alien8.de>
To:     Tianyu Lan <ltykernel@gmail.com>
Cc:     "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
        Wei Liu <wei.liu@kernel.org>, tglx@linutronix.de,
        mingo@redhat.com, dave.hansen@intel.com, luto@kernel.org,
        peterz@infradead.org, sathyanarayanan.kuppuswamy@linux.intel.com,
        aarcange@redhat.com, ak@linux.intel.com, dan.j.williams@intel.com,
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        seanjc@google.com, thomas.lendacky@amd.com, brijesh.singh@amd.com,
        x86@kernel.org, linux-kernel@vger.kernel.org,
        "K. Y. Srinivasan" <kys@microsoft.com>,
        Haiyang Zhang <haiyangz@microsoft.com>,
        Stephen Hemminger <sthemmin@microsoft.com>,
        Dexuan Cui <decui@microsoft.com>,
        Tianyu Lan <Tianyu.Lan@microsoft.com>
Subject: Re: [PATCH 1/4] x86/hyperv: Add missing ARCH_HAS_CC_PLATFORM
 dependency
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On Wed, Feb 23, 2022 at 06:43:40PM +0800, Tianyu Lan wrote:
> Hyper-V code check cpuid during runtime and there is no Hyper-V
> isolation VM option.

So how does "Current Hyper-V Isolation VM requires AMD_MEM_ENCRYPT" work
exactly?

Please explain in detail and not in piecemeal sentences.

-- 
Regards/Gruss,
    Boris.

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