linux-kernel - Re: [patch 0/3] x86/kvm: Basic split lock #AC handling

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Message-ID: <87v9m2o6u8.fsf@nanos.tec.linutronix.de>
Date:   Tue, 14 Apr 2020 09:38:07 +0200
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Sean Christopherson <sean.j.christopherson@...el.com>
Cc:     LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
        "Kenneth R. Crudup" <kenny@...ix.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Xiaoyao Li <xiaoyao.li@...el.com>,
        Nadav Amit <namit@...are.com>,
        Thomas Hellstrom <thellstrom@...are.com>,
        Tony Luck <tony.luck@...el.com>
Subject: Re: [patch 0/3] x86/kvm: Basic split lock #AC handling

Sean,

Sean Christopherson <sean.j.christopherson@...el.com> writes:
> On Fri, Apr 10, 2020 at 01:53:59PM +0200, Thomas Gleixner wrote:
>> This is a reworked version of the patches posted by Sean:
>> 
>>  https://lore.kernel.org/r/20200402155554.27705-1-sean.j.christopherson@intel.com
>> 
>> The changes vs. this are:
>> 
>>     1) Use a separate function for guest split lock handling
>> 
>>     2) Force SIGBUS when SLD mode fatal
>
> Not that it matters as the code is correct, but I think you meant
> "when SLD mode off" here.

Actually for both fatal and off. The latter should never happen :)

Thanks,

        tglx