Messages in this thread | | | Date | Wed, 25 Nov 2009 18:05:47 +0900 | Subject | Re: [PATCH -tip] x86: fix iommu=soft boot option | From | FUJITA Tomonori <> |
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On Wed, 25 Nov 2009 00:54:34 -0800 Yinghai Lu <yinghai@kernel.org> wrote:
> only remember that SLES 9 SP3 (?) at some point has problem with AMD 10h ( quad core version) > when memory > 4 g (with USB controller ?) > because the gart code only check K8 device id, and didn't check 10h device id. so gart iommu is not used. > and happenly swiotlb code has problem with that kernel version. > > thinking we should keep old behavior, until some day we can remove them all.
Why? We are talking about changing 2.6.33 behavior. swiotlb in 2.6.33 should be the safe option.
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