linux-kernel - Re: [patch v2 0/8] Intel Processor Trace virtulization enabling

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Message-ID: <507310f0-109b-2842-dc4d-58ad9d033739@redhat.com>
Date:   Thu, 2 Nov 2017 15:57:23 +0100
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Luwei Kang <luwei.kang@...el.com>, kvm@...r.kernel.org
Cc:     rkrcmar@...hat.com, tglx@...utronix.de, mingo@...hat.com,
        hpa@...or.com, x86@...nel.org, linux-kernel@...r.kernel.org,
        Chao Peng <chao.p.peng@...ux.intel.com>
Subject: Re: [patch v2 0/8] Intel Processor Trace virtulization enabling

On 30/10/2017 23:05, Luwei Kang wrote:
> From v1:
>  - remove guest-only mode because guest-only mode can be covered by host-guest mode;
>  - always set "use GPA for processor tracing" in secondary execution control if it can be;
>  - trap RTIT_CTL read/write. Forbid write this msr when VMXON in L1 hypervisor.

Sounds fine.  However, it's likely that this will only be in Linux 4.16.

Paolo