From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: [PATCH 0/3] x2APIC improvement Date: Tue, 6 Jul 2010 10:49:15 -0400 Message-ID: <20100706144915.GB5408@phenom.dumpdata.com> References: <1A42CE6F5F474C41B63392A5F80372B21F67B00E@shsmsx501.ccr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1A42CE6F5F474C41B63392A5F80372B21F67B00E@shsmsx501.ccr.corp.intel.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: "Han, Weidong" Cc: Xen-devel , Keir Fraser List-Id: xen-devel@lists.xenproject.org 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?