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authorMuli Ben-Yehuda <muli@il.ibm.com>2006-12-07 02:14:07 +0100
committerAndi Kleen <andi@basil.nowhere.org>2006-12-07 02:14:07 +0100
commitbff6547bb6a4e82c399d74e7fba78b12d2f162ed (patch)
treefaeb4e95d243b0eb5cd6337739e4c14d154b282f /arch/x86_64/Kconfig
parenteae93755540bae18aff46b8a0e621b5d65bd5380 (diff)
[PATCH] Calgary: allow compiling Calgary in but not using it by default
This patch makes it possible to compile Calgary in but not use it by default. In this mode, use 'iommu=calgary' to activate it. Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Jon Mason <jdmason@kudzu.us> Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'arch/x86_64/Kconfig')
-rw-r--r--arch/x86_64/Kconfig11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 010d2265f1c..5cb509dbffe 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -455,6 +455,17 @@ config CALGARY_IOMMU
Normally the kernel will make the right choice by itself.
If unsure, say Y.
+config CALGARY_IOMMU_ENABLED_BY_DEFAULT
+ bool "Should Calgary be enabled by default?"
+ default y
+ depends on CALGARY_IOMMU
+ help
+ Should Calgary be enabled by default? if you choose 'y', Calgary
+ will be used (if it exists). If you choose 'n', Calgary will not be
+ used even if it exists. If you choose 'n' and would like to use
+ Calgary anyway, pass 'iommu=calgary' on the kernel command line.
+ If unsure, say Y.
+
# need this always selected by IOMMU for the VIA workaround
config SWIOTLB
bool