linux-kernel - Re: [PATCH] KVM: X86: Allow userspace to define the microcode version

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Message-ID: <20180226113000.GC4377@pd.tnic>
Date:   Mon, 26 Feb 2018 12:30:00 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Wanpeng Li <kernellwp@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>, kvm <kvm@...r.kernel.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>
Subject: Re: [PATCH] KVM: X86: Allow userspace to define the microcode version

On Mon, Feb 26, 2018 at 07:25:28PM +0800, Wanpeng Li wrote:
> Both are the same values set by kvm userspace.

This still doesn't answer my question what "the non-sensical value which
is written by the guest will not reflect to guest-visible microcode
revision" means?

> This is correct. The link explains why the userspace sets microcode
> revision is still needed.

Why is it still needed?

-- 
Regards/Gruss,
    Boris.

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