RE: [Xen-ia64-devel] [PATCH] xen might misunderstand a normal pa

To:	"Kouya SHIMURA" <kouya@xxxxxxxxxxxxxx>, <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
Subject:	RE: [Xen-ia64-devel] [PATCH] xen might misunderstand a normal page asI/O page
From:	"Xu, Anthony" <anthony.xu@xxxxxxxxx>
Date:	Wed, 24 Jan 2007 12:47:06 +0800
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Thread-topic:	[Xen-ia64-devel] [PATCH] xen might misunderstand a normal page asI/O page

Hi Kouya,

Can you explain more?

How does misunderstanding happen?
And how does this patch fix it?

Thanks
Anthony

Kouya SHIMURA write on 2007年1月24日 12:31:
> Hi,
> 
> Hypervisor might misunderstand a normal page as I/O page
> if a guest OS uses the ig field in the guest VHPT.
> 
> It seems to be harmless but slightly slow down.
> 
> Thanks,
> Kouya
> 
> Signed-off-by: Kouya Shimura <kouya@xxxxxxxxxxxxxx>

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RE: [Xen-ia64-devel] [PATCH] xen might misunderstand a normal page asI/O