On Fri, Sep 20, 2019 at 08:07:38AM +0800, Guo Ren wrote: > On Thu, Sep 19, 2019 at 11:18 PM Jean-Philippe Brucker > <jean-philippe@xxxxxxxxxx> wrote: > > > > > The SMMU does support PCI Virtual Function - an hypervisor can assign a > > VF to a guest, and let that guest partition the VF into smaller contexts > > by using PASID. What it can't support is assigning partitions of a PCI > > function (VF or PF) to multiple Virtual Machines, since there is a > > single S2 PGD per function (in the Stream Table Entry), rather than one > > S2 PGD per PASID context. > > > In my concept, the two sentences "The SMMU does support PCI Virtual > Functio" v.s. "What it can't support is assigning partitions of a PCI > function (VF or PF) to multiple Virtual Machines" are conflict and I > don't want to play naming game :) That's fine. But to prevent the spread of misinformation: Arm SMMU supports PCI Virtual Functions. Thanks, Jean _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
