linux-kernel - Re: [PATCH v5 2/4] x86/xen/time: set pvclock flags on xen_time

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Message-ID: <f29f8673-ca66-120f-7b5f-f81f3284ae83@oracle.com>
Date:   Mon, 2 Oct 2017 14:39:43 -0400
From:   Boris Ostrovsky <boris.ostrovsky@...cle.com>
To:     Joao Martins <joao.m.martins@...cle.com>,
        linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Juergen Gross <jgross@...e.com>,
        Andy Lutomirski <luto@...capital.net>
Subject: Re: [PATCH v5 2/4] x86/xen/time: set pvclock flags on xen_time_init()

On 10/02/2017 02:31 PM, Joao Martins wrote:
> Specifically check for PVCLOCK_TSC_STABLE_BIT and if this bit is set,
> then set it too on pvclock flags. This allows Xen clocksource to use it
> and thus speeding up xen_clocksource_read() callers (i.e. sched_clock())
>
> Signed-off-by: Joao Martins <joao.m.martins@...cle.com>

Reviewed-by: Boris Ostrovsky <boris.ostrovsky@...cle.com>