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DateTue, 12 Feb 2008 12:21:08 -0800
FromRandy Dunlap <>
SubjectRe: [PATCH]intel-iommu batched iotlb flushes
> 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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