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From: Zachary Amsden <zamsden@redhat.com>
To: Joerg Roedel <joerg.roedel@amd.com>
Cc: Avi Kivity <avi@redhat.com>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] KVM: SVM: Adjust tsc_offset only if tsc_unstable
Date: Mon, 14 Dec 2009 17:38:26 -1000	[thread overview]
Message-ID: <4B2704B2.10709@redhat.com> (raw)
In-Reply-To: <1260789740-14847-1-git-send-email-joerg.roedel@amd.com>

On 12/14/2009 01:22 AM, Joerg Roedel wrote:
> The tsc_offset adjustment in svm_vcpu_load is executed
> unconditionally even if Linux considers the host tsc as
> stable. This causes a Linux guest detecting an unstable tsc
> in any case.
> This patch removes the tsc_offset adjustment if the host tsc
> is stable. The guest will now get the benefit of a stable
> tsc too.
>
>    
Hi Joerg, I have a much more comprehensive series of patches to address 
this issue, please take a look.

Thanks,

Zach

  reply	other threads:[~2009-12-15  3:36 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-12-14 11:22 [PATCH] KVM: SVM: Adjust tsc_offset only if tsc_unstable Joerg Roedel
2009-12-15  3:38 ` Zachary Amsden [this message]
2009-12-20  9:59   ` Avi Kivity
2009-12-20 23:24     ` Zachary Amsden

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