Comment 16 for bug 1137817

Revision history for this message
Chris Wilson (ickle) wrote : Re: [ivb] System freeze after high memory usage

VTd is the 'virtualised device' acceleration within the CPU - it has been very problematic with the igfx so far, but supposedly Ivybridge works. intel_iommu=off disables support and thus allows the GPU to have direct access to memory without going through a DMA remapper.