On 10.09.14 17:00, Alexey Kardashevskiy wrote: > 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).
Ah, I see. The logic is still reversed. Old machine types get compat options, new machine types don't. So the default should be "ddw enabled" and pseries-2.1 gets a compat field saying "disable ddw". Alex
