Messages in this thread |  | | | Date | Tue, 12 Feb 2008 12:21:08 -0800 | | From | Randy Dunlap <> | | Subject | Re: [PATCH]intel-iommu batched iotlb flushes |
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> Index: linux-2.6.24-mm1/Documentation/kernel-parameters.txt > =================================================================== > --- linux-2.6.24-mm1.orig/Documentation/kernel-parameters.txt 2008-02-12 07:12:06.000000000 -0800 > +++ linux-2.6.24-mm1/Documentation/kernel-parameters.txt 2008-02-12 11:36:07.000000000 -0800 > @@ -822,6 +822,10 @@ > than 32 bit addressing. The default is to look > for translation below 32 bit and if not available > then look in the higher range. > + strict [Default Off] > + With this option on every umap_signle operation will
umap_signle ??? (again)
> + result in a hardware IOTLB flush operation as opposed > + to batching them for performance. > > io_delay= [X86-32,X86-64] I/O delay method > 0x80
-- ~Randy
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