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Date:   Tue, 4 Aug 2020 12:09:49 -0700
From:   Sean Christopherson <sean.j.christopherson@intel.com>
To:     Jim Mattson <jmattson@google.com>
Cc:     Paolo Bonzini <pbonzini@redhat.com>,
        Vitaly Kuznetsov <vkuznets@redhat.com>,
        Wanpeng Li <wanpengli@tencent.com>,
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        LKML <linux-kernel@vger.kernel.org>,
        Oliver Upton <oupton@google.com>,
        Peter Shier <pshier@google.com>
Subject: Re: [PATCH] KVM: x86: Don't attempt to load PDPTRs when 64-bit mode
 is enabled
Message-ID: <20200804190949.GA25586@linux.intel.com>
References: <20200714015732.32426-1-sean.j.christopherson@intel.com>
 <20200804184146.GA16023@linux.intel.com>
 <CALMp9eQb32UB_tLowkr5T+Rt9SBdJbTkjHWyWFg+6ruJ_OuaKw@mail.gmail.com>
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On Tue, Aug 04, 2020 at 11:46:58AM -0700, Jim Mattson wrote:
> On Tue, Aug 4, 2020 at 11:41 AM Sean Christopherson
> <sean.j.christopherson@intel.com> wrote:
> 
> > Ping.  This really needs to be in the initial pull for 5.9, as is kvm/queue
> > has a 100% fatality rate for me.
> 
> I agree completely, but I am curious what guest you have that toggles
> CD/NW in 64-bit mode.

It's my OVMF build.  I assume it's MTRR programming, but I haven't bothered
to debug that far.  Nor do I want to, the EDKII build framework makes my
head explode :-).