Re: [Qemu-devel] [PATCH] spapr_pci: map the MSI window in each PHB

2014-08-28 Thread Alexander Graf
On 27.08.14 19:10, Greg Kurz wrote: > On Wed, 27 Aug 2014 18:17:12 +0200 > Greg Kurz wrote: > >> On sPAPR, virtio devices are connected to the PCI bus and use MSI-X. >> Commit cc943c36faa192cd4b32af8fe5edb31894017d35 has modified MSI-X >> so that writes are made using the bus master address spa

Re: [Qemu-devel] [PATCH] spapr_pci: map the MSI window in each PHB

2014-08-27 Thread Greg Kurz
On Wed, 27 Aug 2014 18:17:12 +0200 Greg Kurz wrote: > On sPAPR, virtio devices are connected to the PCI bus and use MSI-X. > Commit cc943c36faa192cd4b32af8fe5edb31894017d35 has modified MSI-X > so that writes are made using the bus master address space. ...and follow the IOMMU path. > Unfortuna

[Qemu-devel] [PATCH] spapr_pci: map the MSI window in each PHB

2014-08-27 Thread Greg Kurz
On sPAPR, virtio devices are connected to the PCI bus and use MSI-X. Commit cc943c36faa192cd4b32af8fe5edb31894017d35 has modified MSI-X so that writes are made using the bus master address space. Unfortunately, this address space does not have a MSI window: the notification is silently dropped in u