From mboxrd@z Thu Jan  1 00:00:00 1970
From: Anthony Liguori <anthony@codemonkey.ws>
Subject: Re: [PATCH] mask out clflush
Date: Thu, 10 Jul 2008 09:20:07 -0500
Message-ID: <48761A97.7010500@codemonkey.ws>
References: <1215541784-26539-1-git-send-email-gcosta@redhat.com> <200807101843.57902.sheng.yang@intel.com> <48760EE6.1070303@codemonkey.ws> <48760FDA.80401@qumranet.com> <487610A5.9030903@codemonkey.ws> <4876185B.9030609@qumranet.com>
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Cc: "Yang, Sheng" <sheng.yang@intel.com>, kvm@vger.kernel.org,
	Glauber Costa <gcosta@redhat.com>, glommer@gmail.com
To: Avi Kivity <avi@qumranet.com>
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Avi Kivity wrote:
> Anthony Liguori wrote:
>>
>> It's equivalent to a read from a VT perspective so if the read would 
>> trap, the clflush instruction will trap.
>>
>
> Reads don't normally go through the emulator.  Is the guest 
> clflush()ing mmio addresses?  Strange as these are not normally cached.

It seems so, Glauber mentioned that the address was an MMIO address.

Regards,

Anthony Liguori