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From: Tim Deegan <tim@xen.org>
To: "Zhang, Yang Z" <yang.z.zhang@intel.com>
Cc: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
	Keir Fraser <keir@xen.org>
Subject: Re: lock in vhpet
Date: Thu, 19 Apr 2012 09:27:17 +0100	[thread overview]
Message-ID: <20120419082717.GA23663@ocelot.phlegethon.org> (raw)
In-Reply-To: <A9667DDFB95DB7438FA9D7D576C3D87E0DCE1C@SHSMSX101.ccr.corp.intel.com>

At 05:19 +0000 on 19 Apr (1334812779), Zhang, Yang Z wrote:
> There have no problem with this patch, it works well. But it cannot
> fix the win8 issue. It seems there has some other issues with hpet. I
> will look into it.  Thanks for your quick patch.

The lock in hvm_get_guest_time() will still be serializing the hpet
reads.  But since it needs to update a shared variable, that will need to
haul cachelines around anyway. 

Tim.

  reply	other threads:[~2012-04-19  8:27 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-17  3:26 lock in vhpet Zhang, Yang Z
2012-04-17  7:27 ` Keir Fraser
2012-04-18  0:52   ` Zhang, Yang Z
2012-04-18  7:13     ` Keir Fraser
2012-04-18  7:55       ` Zhang, Yang Z
2012-04-18  8:29         ` Keir Fraser
2012-04-18  9:14           ` Keir Fraser
2012-04-18  9:30             ` Keir Fraser
2012-04-19  5:19               ` Zhang, Yang Z
2012-04-19  8:27                 ` Tim Deegan [this message]
2012-04-19  8:47                   ` Keir Fraser
2012-04-23  7:36                     ` Zhang, Yang Z
2012-04-23  7:43                       ` Jan Beulich
2012-04-23  8:15                         ` Zhang, Yang Z
2012-04-23  8:22                           ` Keir Fraser
2012-04-23  9:14                       ` Tim Deegan
2012-04-23 15:26                         ` Andres Lagar-Cavilla
2012-04-24  9:15                           ` Tim Deegan
2012-04-24 13:28                             ` Andres Lagar-Cavilla
2012-04-23 17:18                         ` Andres Lagar-Cavilla
2012-04-24  8:58                           ` Zhang, Yang Z
2012-04-24  9:16                             ` Tim Deegan
2012-04-25  0:27                               ` Zhang, Yang Z
2012-04-25  1:40                                 ` Andres Lagar-Cavilla
2012-04-25  1:48                                   ` Zhang, Yang Z
2012-04-25  2:31                                     ` Andres Lagar-Cavilla
2012-04-25  2:36                                       ` Zhang, Yang Z
2012-04-25  2:42                                         ` Andres Lagar-Cavilla
2012-04-25  3:12                                           ` Zhang, Yang Z
2012-04-25  3:34                                             ` Andres Lagar-Cavilla
2012-04-25  5:18                                               ` Zhang, Yang Z
2012-04-25  8:07                                               ` Jan Beulich
2012-04-26 21:25                                         ` Tim Deegan
2012-04-27  0:46                                           ` Zhang, Yang Z
2012-04-27  0:51                                             ` Andres Lagar-Cavilla
2012-04-27  1:24                                               ` Zhang, Yang Z
2012-04-27  8:36                                               ` Zhang, Yang Z
2012-04-27  3:02                                           ` Andres Lagar-Cavilla
2012-04-27  9:26                                             ` Tim Deegan
2012-04-27 14:17                                               ` Andres Lagar-Cavilla
2012-04-27 21:08                                               ` Andres Lagar-Cavilla
2012-05-16 11:36                                           ` Zhang, Yang Z
2012-05-16 12:36                                             ` Tim Deegan
2012-05-17 10:57                                               ` Tim Deegan
2012-05-28  6:54                                                 ` Zhang, Yang Z

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