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[Xen-devel] [PATCH][VTD] force boot to fail if interrupt remapping canno
| To: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH][VTD] force boot to fail if interrupt remapping cannot be enabled when iommu=force |
| From: | "Kay, Allen M" <allen.m.kay@xxxxxxxxx> |
| Date: | Wed, 27 Apr 2011 16:42:57 -0700 |
| Accept-language: | en-US |
| Acceptlanguage: | en-US |
| Cc: | "Cihula, Joseph" <joseph.cihula@xxxxxxxxx>, Keir Fraser <keir@xxxxxxx>, Jan Beulich <JBeulich@xxxxxxxxxx> |
| Delivery-date: | Wed, 27 Apr 2011 16:43:53 -0700 |
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| Thread-topic: | [PATCH][VTD] force boot to fail if interrupt remapping cannot be enabled when iommu=force |
Force Xen boot to fail if interrupt remapping fails to enable and the following are true: iommu=force is set as xen boot parameter, VT-d engine HW is interrupt remapping capable, DMAR_INTR_REMAP bit is set in DMAR flags. This forces iommu=force boot instances has interrupt remapping enabled if HW and BIOS supports it. Signed-off-by: Allen Kay <allen.m.kay@xxxxxxxxx>
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