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| author | Joerg Roedel <joerg.roedel@amd.com> | 2008-11-18 12:44:21 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-01-18 10:35:29 -0800 |
| commit | 11fea7ace7b0086f853854df8653d1c8f90a9fb9 (patch) | |
| tree | f5f594744e2dc4530654af8e11cbf37cf890271f /arch | |
| parent | 28c8678935618ab43e9e5ea7f8893ad3096cf431 (diff) | |
| download | linux-stable-11fea7ace7b0086f853854df8653d1c8f90a9fb9.tar.gz linux-stable-11fea7ace7b0086f853854df8653d1c8f90a9fb9.tar.bz2 linux-stable-11fea7ace7b0086f853854df8653d1c8f90a9fb9.zip | |
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 552d2b7a344c..388bae2bff8f 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -567,7 +567,7 @@ 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 |