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[Xen-devel] [PATCH 1/3] x2APIC/VT-d: allocate iommu when create a drhd
| To: | Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH 1/3] x2APIC/VT-d: allocate iommu when create a drhd |
| From: | "Han, Weidong" <weidong.han@xxxxxxxxx> |
| Date: | Mon, 5 Jul 2010 15:08:06 +0800 |
| Accept-language: | en-US |
| Acceptlanguage: | en-US |
| Cc: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Delivery-date: | Mon, 05 Jul 2010 00:13:42 -0700 |
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| Thread-index: | AcscENFIWHUCzNAXSxiOYsp/rbLakQ== |
| Thread-topic: | [PATCH 1/3] x2APIC/VT-d: 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. Signed-off-by: Weidong Han <weidong.han@xxxxxxxxx>
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