From mboxrd@z Thu Jan  1 00:00:00 1970
From: Joerg Roedel <joro@8bytes.org>
Subject: Re: [KVM TSC trapping / migration 1/2] Add TSC trapping for SVM
	and VMX
Date: Mon, 10 Jan 2011 12:52:36 +0100
Message-ID: <20110110115236.GF6376@8bytes.org>
References: <1294308645-31113-1-git-send-email-zamsden@redhat.com> <1294308645-31113-2-git-send-email-zamsden@redhat.com>
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Cc: kvm@vger.kernel.org, Avi Kivity <avi@redhat.com>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	Glauber Costa <glommer@redhat.com>,
	linux-kernel@vger.kernel.org
To: Zachary Amsden <zamsden@redhat.com>
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On Thu, Jan 06, 2011 at 12:10:44AM -1000, Zachary Amsden wrote:
> +static void svm_set_tsc_trapping(struct kvm_vcpu *vcpu, bool trap)
> +{
> +	struct vcpu_svm *svm = to_svm(vcpu);
> +	if (trap)
> +		svm->vmcb->control.intercept |= 1ULL << INTERCEPT_RDTSC;
> +	else
> +		svm->vmcb->control.intercept &= ~(1ULL << INTERCEPT_RDTSC);
> +}

This needs to update the clean-bits. Please use
set_intercept/clr_intercept instead which already takes care of this.

	Joerg