Re: [PATCH v7u1 26/31] x86: Don't enable swiotlb if there is notenough ram for it

From: Yinghai Lu
Date: Fri Jan 04 2013 - 18:00:30 EST

On Fri, Jan 4, 2013 at 2:56 PM, Shuah Khan <shuahkhan@xxxxxxxxx> wrote:
> AMD IOMMU driver is using this lever to leave swiotlb enabled when it
> detects devices that can't be supported by iommu. My concern is that
> this change for kdump removes that handshake ability between iommu and
> swiolb.

No, it does not remove that ability.

I'd like to see the boot log on system that could be affected by this patch.
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