From bff6547bb6a4e82c399d74e7fba78b12d2f162ed Mon Sep 17 00:00:00 2001 From: Muli Ben-Yehuda Date: Thu, 7 Dec 2006 02:14:07 +0100 Subject: [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 Signed-off-by: Jon Mason Signed-off-by: Andi Kleen --- arch/x86_64/Kconfig | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'arch/x86_64/Kconfig') 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 -- cgit v1.2.3-70-g09d2