Hi, Jan! On 10.06.21 13:48, Jan Beulich wrote: > On 10.06.2021 12:01, Oleksandr Andrushchenko wrote: >> On 10.06.21 10:54, Roger Pau Monné wrote: >>> OTOH if we properly trap accesses to the SR-IOV capability (like it >>> was proposed in [1] from your references) we won't have to modify OSes >>> that want to run as hardware domains in order to handle SR-IOV devices. >> Out of curiosity, could you please name a few? I do understand that >> >> we do want to support unmodified OSes and this is indeed important. >> >> But, still what are the other OSes which do support Xen + PCI passthrough? > I think Roger saying "want" meant to cover ones which currently don't, > and which would have to undergo more extensive changes if they were to > be enabled.
Fair enough. Do you think we would also need to re-work the existing code in Xen to support normal devices (not SR-IOV), e.g. we currently rely on PHYSDEVOP_XXX and other Linux specifics. And even if SR-IOV is implemented in Xen this won't allow those OSes to stay unmodified, including FreeBSD. Is my understanding correct? > > Jan > Thank you, Oleksandr
