Re: [libvirt] [Qemu-ppc] [RFC PATCH qemu] spapr_pci: Create PCI-express root bus by default
On 03/12/16 08:41, Benjamin Herrenschmidt wrote:
On Fri, 2016-12-02 at 16:50 +1100, David Gibson wrote:
>
> Uh.. I don't entirely follow you. From the host point of view there
> are multiple iommu groups (PEs), but from the guest point of view
> there's only one. On the guest side iommu granularity is always
> per-vPHB.
Ok so the H_PUT_TCE calls affect all the underlying tables ?
Yes, it updates all hardware tables attached to the same guest's LIOBN
(which in reality can only be seen on power7 as power8 shares tables
between PEs).
--
Alexey