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[Xen-devel] [PATCH][VTD] bug fix for EPT/VT-d table sharing
| To: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH][VTD] bug fix for EPT/VT-d table sharing |
| From: | "Kay, Allen M" <allen.m.kay@xxxxxxxxx> |
| Date: | Wed, 5 Jan 2011 11:36:04 -0800 |
| Accept-language: | en-US |
| Acceptlanguage: | en-US |
| Cc: | Keir Fraser <keir@xxxxxxx>, Tim Deegan <Tim.Deegan@xxxxxxxxxx> |
| Delivery-date: | Wed, 05 Jan 2011 11:36:56 -0800 |
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| Thread-index: | AcutD8F/xF50kZxVRlqybZrK1GOfXw== |
| Thread-topic: | [PATCH][VTD] bug fix for EPT/VT-d table sharing |
This patch makes following changes: 1) Moves EPT/VT-d sharing initialization back to when it is actually needed to make sure vmx_ept_vpid_cap has been initialized. 2) added page order parameter to iommu_pte_flush() to tell VT-d what size of page to flush. 3) added hap_2mb flag to ease performance studies between base 4KB EPT size and when 2MB and 1GB page size support are enabled. Signed-off-by: Allen Kay <allen.m.kay@xxxxxxxxx>
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