linux-kernel - Re: [PATCH 1/3] KVM: SVM: Intercept INVPCID when it's disabled to inject #UD

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Message-ID: <CALMp9eRhSCWWEcxR-UoRoQ-g=ZFhj20Cd15Tu5jP8LZ7mBi9FA@mail.gmail.com>
Date:   Thu, 11 Feb 2021 17:01:14 -0800
From:   Jim Mattson <jmattson@...gle.com>
To:     Sean Christopherson <seanjc@...gle.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Joerg Roedel <joro@...tes.org>, kvm list <kvm@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Babu Moger <babu.moger@....com>
Subject: Re: [PATCH 1/3] KVM: SVM: Intercept INVPCID when it's disabled to
 inject #UD

On Thu, Feb 11, 2021 at 4:34 PM Sean Christopherson <seanjc@...gle.com> wrote:
>
> Intercept INVPCID if it's disabled in the guest, even when using NPT,
> as KVM needs to inject #UD in this case.
>
> Fixes: 4407a797e941 ("KVM: SVM: Enable INVPCID feature on AMD")
> Cc: Babu Moger <babu.moger@....com>
> Signed-off-by: Sean Christopherson <seanjc@...gle.com>
Reviewed-by: Jim Mattson <jmattson@...gle.com>