Hi, > > commit message says: > > > > <quote> > > It turns out that some 32 bit windows guests crash > > if 64 bit PCI hole size is >2G. > > </quote> > > > > Why this suddenly isn't a problem any more? > > > > I suppose it is, so we need a way to turn it "off".
Or have machine types behave differently, i.e. give q35 a large 64bit hole and leave pc as-is. Devices with that large bars are most likely pci express anyway ... > This is how I started, however Eduardo and (and maybe Michael ?) > where against letting the upper management software to deal with > such a low low level detail. They simply can't take such a decision. > This is why the property you mentioned is not ever linked > in code anywhere! It is simply not implemented and not used. Makes sense. BTW: Is it safe to just assume 40 bits physical is going to work? My workstation: model name : Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz address sizes : 39 bits physical, 48 bits virtual Does this imply ept is limited 39 bits physical too? cheers, Gerd
