On Fri, 2017-07-21 at 15:15 +0300, Marcel Apfelbaum wrote: > On 21/07/2017 13:04, Gerd Hoffmann wrote: > > Hi, > > > > > > What about window sizes? IIRC there was a plan to provide > > > > allocation > > > > hints for them too ... > > > > > > Yes, is in my TODO list, however not as part of Aleksandr's > > > series > > > which aims to provide PCIe-PCI bridge hotplug support. > > > > I'd prefer to have a single vendor capability for all resource > > allocation hints provided by qemu. > > > > [Adding Laszlo] > > > Sure, the capability looking something like: > > [flags: reserve-buses|reserve-IO|reserve-MEM|...] > [extra-buses][IO-size][MEM-size] > > if reserve-buses -> use 'extra-buses' value and so on
Do we need the flags? We can use "value == 0 -> no hint for you". Also what about prefetchable vs. non-prefetchable memory? I guess we want a size hint for both memory windows? cheers, Gerd
