On 09/10/2014 11:03 PM, Alexander Graf wrote: > > > On 29.08.14 12:12, Alexey Kardashevskiy wrote: >> This implements DDW for VFIO. Host kernel support is required for this. >> >> After this patch DDW will be enabled on all machines but pseries-2.1. > > I fail to see the code that restricts DDW to pseries-2.1. Can you please > point me to it?
Patch "[RFC PATCH v3 13/18] spapr_pci: Enable DDW" which enables DDW on spapr-pci disables it for the current machine by default. Since spapr-pci-vfio inherits from spapr-pci, this property is off for pseries-2.1 as well (I checked). -- Alexey