From mboxrd@z Thu Jan  1 00:00:00 1970
From: Weidong Han <weidong.han@intel.com>
Subject: Re: [PATCH 0/3] x2APIC improvement
Date: Wed, 07 Jul 2010 13:09:08 +0800
Message-ID: <4C340BF4.0@intel.com>
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	<20100706144915.GB5408@phenom.dumpdata.com>
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To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Xen-devel <xen-devel@lists.xensource.com>, Keir Fraser <keir.fraser@eu.citrix.com>
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Konrad Rzeszutek Wilk wrote:
> On Mon, Jul 05, 2010 at 03:07:58PM +0800, Han, Weidong wrote:
>   
>> The patchset improves Xen x2APIC support. 
>>
>> Patch 1/3: allocate iommu when create a drhd
>> 	A drhd is created when parse ACPI DMAR table, but drhd->iommu is not allocated until iommu setup. But iommu is needed by x2APIC which will enable interrupt remapping before iommu setup. This patch allocates iommu when create drhd. And then drhd->ecap can be removed because it's the same as iommu->ecap.
>>
>>     
>
> Have these patches been tested on a machine where the number of DRHD !=
> number of IOAPICs?
>
>   
Why need to care about number of DRHD != number of IOAPICs? One DRHD may 
cover more than one IOAPICs. And there is already check if all IOAPICs 
have corresponding DRHD.

Regards,
Weidong