linux-kernel - Re: [PATCH v7 1/5] ptp_kvm: probe for kvm guest availability

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Date:   Fri, 20 Oct 2017 16:33:20 +0200
From:   Radim Krcmar <rkrcmar@...hat.com>
To:     Joao Martins <joao.m.martins@...cle.com>
Cc:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        Paolo Bonzini <pbonzini@...hat.com>,
        Richard Cochran <richardcochran@...il.com>,
        Marcelo Tosatti <mtosatti@...hat.com>,
        xen-devel <xen-devel@...ts.xenproject.org>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Juergen Gross <jgross@...e.com>,
        Andy Lutomirski <luto@...capital.net>
Subject: Re: [PATCH v7 1/5] ptp_kvm: probe for kvm guest availability

2017-10-19 14:39+0100, Joao Martins:
> In the event of moving pvclock_pvti_cpu0_va() definition to common
> pvclock code, this function could return a value on non KVM guests.
> If user tried to load the module (or have it builtin) it would fail
> with a GPF on ptp_kvm_init when running on a Xen guest. Therefore,
> ptp_kvm_init() should check whether it is running in a KVM guest.
> 
> Signed-off-by: Joao Martins <joao.m.martins@...cle.com>
> ---
> New in v7;
> ---

Acked-by: Radim Krčmář <rkrcmar@...hat.com>