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[Xen-ia64-devel][PATCH] workaround for itr_d
| To: | <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx> |
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| Subject: | [Xen-ia64-devel][PATCH] workaround for itr_d |
| From: | "Xu, Anthony" <anthony.xu@xxxxxxxxx> |
| Date: | Wed, 20 Sep 2006 17:29:55 +0800 |
| Delivery-date: | Wed, 20 Sep 2006 02:30:37 -0700 |
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| Thread-topic: | [Xen-ia64-devel][PATCH] workaround for itr_d |
Workaround for itr_d This is a bad workaround In linux, region 7 use 16M page size, and it is identity mapping, While VHPT page size is 16K in XEN, if purge VHPT while guest insert 16M TR, It will iterate purge VHPT 1024 times, which makes XEN/IFF very slow. XEN doesn't purge VHPT Signed-off-by: Anthony Xu < anthony.xu@xxxxxxxxx > Thanks, Anthony
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