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From: Paolo Bonzini <pbonzini@redhat.com>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: kvm-devel <kvm@vger.kernel.org>
Subject: Re: [PATCH v2] KVM: x86: update masterclock values on TSC writes
Date: Wed, 05 Nov 2014 10:36:05 +0100	[thread overview]
Message-ID: <5459EF85.5010206@redhat.com> (raw)
In-Reply-To: <20141104233044.GB29191@amt.cnet>

On 05/11/2014 00:30, Marcelo Tosatti wrote:
> +	/*
> +	 * If the vcpus have matched TSCs and host clocksource is TSC,
> +	 * perform request to enable masterclock.
> +	 *
> +	 * If the masterclock is enabled, perform request to update
> +	 * masterclock values.
> +	 */
> +	if ((vcpus_matched && gtod->clock.vclock_mode == VCLOCK_TSC) ||
> +	     ka->use_master_clock)

This is not an explanation, it is a literal translation from C to
English. :)  Can you also explain the why, especially for the first half
of the condition?

Paolo

  reply	other threads:[~2014-11-05  9:36 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-04 23:30 [PATCH v2] KVM: x86: update masterclock values on TSC writes Marcelo Tosatti
2014-11-05  9:36 ` Paolo Bonzini [this message]
2014-11-05 18:19   ` Marcelo Tosatti
2014-11-05 19:47     ` Paolo Bonzini
2014-11-05 19:49       ` Paolo Bonzini
2014-11-05 19:58         ` Marcelo Tosatti

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