path: root/Documentation
diff options
authorKyle McMartin <kyle@redhat.com>2009-02-04 14:29:19 -0800
committerIngo Molnar <mingo@elte.hu>2009-02-05 16:48:38 +0100
commit0cd5c3c80a0ebd68c08312fa7d8c13149cc61c4c (patch)
tree4dc6093ee08e668a182b38bd13cd85436555c4b6 /Documentation
parentb534816b552d35bbd3c60702139ed5c7da2f55c2 (diff)
x86: disable intel_iommu support by default
Due to recurring issues with DMAR support on certain platforms. There's a number of filesystem corruption incidents reported: https://bugzilla.redhat.com/show_bug.cgi?id=479996 http://bugzilla.kernel.org/show_bug.cgi?id=12578 Provide a Kconfig option to change whether it is enabled by default. If disabled, it can still be reenabled by passing intel_iommu=on to the kernel. Keep the .config option off by default. Signed-off-by: Kyle McMartin <kyle@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-By: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation')
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index d8362cf9909..b182626739e 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -937,6 +937,8 @@ and is between 256 and 4096 characters. It is defined in the file
intel_iommu= [DMAR] Intel IOMMU driver (DMAR) option
+ on
+ Enable intel iommu driver.
Disable intel iommu driver.
igfx_off [Default Off]