From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1752029AbdATNHq (ORCPT <rfc822;w@1wt.eu>);
        Fri, 20 Jan 2017 08:07:46 -0500
Received: from mx1.redhat.com ([209.132.183.28]:40510 "EHLO mx1.redhat.com"
        rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
        id S1750876AbdATNHp (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
        Fri, 20 Jan 2017 08:07:45 -0500
Subject: Re: [patch 3/5] kvmclock: export kvmclock clocksource pointer
To: Marcelo Tosatti <mtosatti@redhat.com>, kvm@vger.kernel.org,
        linux-kernel@vger.kernel.org
References: <20170120122025.665985919@redhat.com>
 <20170120122503.656729077@redhat.com>
Cc: Radim Krcmar <rkrcmar@redhat.com>,
        Richard Cochran <richardcochran@gmail.com>,
        Miroslav Lichvar <mlichvar@redhat.com>
From: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <098a3f20-565f-934c-98c7-6be3ff2d5dee@redhat.com>
Date: Fri, 20 Jan 2017 13:55:57 +0100
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101
 Thunderbird/45.5.1
MIME-Version: 1.0
In-Reply-To: <20170120122503.656729077@redhat.com>
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Fri, 20 Jan 2017 12:56:03 +0000 (UTC)
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org



On 20/01/2017 13:20, Marcelo Tosatti wrote:
> To be used by KVM PTP driver.
> 
> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
> 
> ---
>  arch/x86/include/asm/kvmclock.h |    6 ++++++
>  arch/x86/kernel/kvmclock.c      |    6 ++++++
>  2 files changed, 12 insertions(+)
> 
> Index: kvm-ptpdriver/arch/x86/include/asm/kvmclock.h
> ===================================================================
> --- /dev/null	1970-01-01 00:00:00.000000000 +0000
> +++ kvm-ptpdriver/arch/x86/include/asm/kvmclock.h	2017-01-18 18:20:35.463472189 -0200
> @@ -0,0 +1,6 @@
> +#ifndef _ASM_X86_KVM_CLOCK_H
> +#define _ASM_X86_KVM_CLOCK_H
> +
> +struct clocksource *get_kvmclock_cs(void);
> +
> +#endif /* _ASM_X86_KVM_CLOCK_H */
> Index: kvm-ptpdriver/arch/x86/kernel/kvmclock.c
> ===================================================================
> --- kvm-ptpdriver.orig/arch/x86/kernel/kvmclock.c	2017-01-11 21:22:13.306315984 -0200
> +++ kvm-ptpdriver/arch/x86/kernel/kvmclock.c	2017-01-18 18:20:02.543397125 -0200
> @@ -28,6 +28,7 @@
>  
>  #include <asm/x86_init.h>
>  #include <asm/reboot.h>
> +#include <asm/kvmclock.h>
>  
>  static int kvmclock __ro_after_init = 1;
>  static int msr_kvm_system_time = MSR_KVM_SYSTEM_TIME;
> @@ -182,6 +183,11 @@
>  	.flags = CLOCK_SOURCE_IS_CONTINUOUS,
>  };
>  
> +struct clocksource *get_kvmclock_cs(void)
> +{
> +	return &kvm_clock;

You can export kvm_clock directly (rename it to clocksource_kvmclock if
you prefer).

Paolo

> +}
> +
>  int kvm_register_clock(char *txt)
>  {
>  	int cpu = smp_processor_id();
> 
>