Re: [PATCH]intel-iommu batched iotlb flushes
From: Randy Dunlap
Date: Tue Feb 12 2008 - 15:26:30 EST
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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