linux-kernel - Re: [PATCH v2 3/6] kvm: x86: Emulate split-lock access as a write

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Message-ID: <f9280995-942a-baad-7d67-db4f1a3015de@redhat.com>
Date:   Thu, 12 Mar 2020 16:00:40 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Xiaoyao Li <xiaoyao.li@...el.com>,
        Sean Christopherson <sean.j.christopherson@...el.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Andy Lutomirski <luto@...capital.net>, x86@...nel.org,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        David Laight <David.Laight@...lab.com>
Subject: Re: [PATCH v2 3/6] kvm: x86: Emulate split-lock access as a write

On 12/03/20 12:42, Xiaoyao Li wrote:
>> I completely agree that poorly emulating the instruction from the 
>> (likely) malicious guest is a hack, but it's a simple and easy to
>> maintain hack.
> 
> What's your opinion about above?

That's okay, I suppose.

Paolo