On Wed, 16 Nov 2011 21:18:13 +0100, Daniel Vetter <[email protected]> wrote:
> Last time I've played around with all the combinations, only > intel_iommu=off was good enough to prevent the hang. > intel_iommu=igd_off still hangs (which is what the current value > exported by the dmar code dopends on, iirc). If I remember things > correctly, intel_iommu=off also reliably works around issues for all > reporters (both semaphores and rc6). So, the dmar_disabled flag would suffice? Should be trivial to export that and check in our driver. -- [email protected]
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