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Date:   Thu, 12 Nov 2020 15:52:11 +0000
From:   Wei Liu <wei.liu@kernel.org>
To:     Vitaly Kuznetsov <vkuznets@redhat.com>
Cc:     Wei Liu <wei.liu@kernel.org>,
        Linux on Hyper-V List <linux-hyperv@vger.kernel.org>,
        virtualization@lists.linux-foundation.org,
        Linux Kernel List <linux-kernel@vger.kernel.org>,
        Michael Kelley <mikelley@microsoft.com>,
        Vineeth Pillai <viremana@linux.microsoft.com>,
        Sunil Muthuswamy <sunilmut@microsoft.com>,
        Nuno Das Neves <nunodasneves@linux.microsoft.com>,
        "K. Y. Srinivasan" <kys@microsoft.com>,
        Haiyang Zhang <haiyangz@microsoft.com>,
        Stephen Hemminger <sthemmin@microsoft.com>,
        Daniel Lezcano <daniel.lezcano@linaro.org>,
        Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH v2 05/17] clocksource/hyperv: use MSR-based access if
 running as root
Message-ID: <20201112155210.dwpzbyf6ytsmt2dh@liuwe-devbox-debian-v2>
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On Thu, Nov 12, 2020 at 04:30:57PM +0100, Vitaly Kuznetsov wrote:
> Wei Liu <wei.liu@kernel.org> writes:
> 
> > Signed-off-by: Wei Liu <wei.liu@kernel.org>
> 
> In the missing commit message I'd like to see why we don't use 'TSC
> page' clocksource for the root partition. My guess would be that it's
> not available and actually we're supposed to use raw TSC value (because
> root partitions never migrate) but please spell it out.

See my exchange with Daniel.

Wei.