From mboxrd@z Thu Jan  1 00:00:00 1970
From: Borislav Petkov <bp@alien8.de>
Subject: Re: [PATCH] KVM: X86: Allow userspace to define the microcode version
Date: Mon, 26 Feb 2018 12:30:00 +0100
Message-ID: <20180226113000.GC4377@pd.tnic>
References: <1519629838-4898-1-git-send-email-wanpengli@tencent.com>
 <20180226094148.GA15539@pd.tnic>
 <CANRm+CzODxLQ4UHgFCnpjABmBUvi9sbw=uyO1xk1dyWgnH86ig@mail.gmail.com>
 <20180226104921.GA4377@pd.tnic>
 <CANRm+Cy+Cr1-AMwM+u20X53=GqY0zfOugFypZcZwyJmnnwNNwA@mail.gmail.com>
 <20180226111630.GB4377@pd.tnic>
 <CANRm+Cxw2-8Cf+6cg_yZC+SD66uNA5RO+ZaoHHmkpHLzjCih=A@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Cc: LKML <linux-kernel@vger.kernel.org>, kvm <kvm@vger.kernel.org>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Radim =?utf-8?B?S3LEjW3DocWZ?= <rkrcmar@redhat.com>
To: Wanpeng Li <kernellwp@gmail.com>
Return-path: <linux-kernel-owner@vger.kernel.org>
Content-Disposition: inline
In-Reply-To: <CANRm+Cxw2-8Cf+6cg_yZC+SD66uNA5RO+ZaoHHmkpHLzjCih=A@mail.gmail.com>
Sender: linux-kernel-owner@vger.kernel.org
List-Id: kvm.vger.kernel.org

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.

Good mailing practices for 400: avoid top-posting and trim the reply.