diff options
| author | Joerg Roedel <joerg.roedel@amd.com> | 2008-11-18 12:44:21 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-01-18 10:43:44 -0800 |
| commit | e9c2a0a5a7a403f7fe12371fbe952f5aee61add4 (patch) | |
| tree | 15436ca1032bb4aa040f170610551ca1e762550a /arch | |
| parent | 6c2c40d1f8d457306f77524dfc0bf6f60b831fca (diff) | |
x86: default to SWIOTLB=y on x86_64
commit a1afd01c175324656d0e8f1c82ea94b474953c04 upstream.
Impact: fixes korg bugzilla 11980
A kernel for a 64bit x86 system should always contain the swiotlb code
in case it is booted on a machine without any hardware IOMMU supported
by the kernel and more than 4GB of RAM. This patch changes Kconfig to
always compile swiotlb into the kernel for x86_64.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index ac22bb7719f7..2187c6086889 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -569,7 +569,7 @@ config AMD_IOMMU # need this always selected by IOMMU for the VIA workaround config SWIOTLB - bool + def_bool y if X86_64 help Support for software bounce buffers used on x86-64 systems which don't have a hardware IOMMU (e.g. the current generation |