Re: [Qemu-devel] [PATCH v5 08/11] spapr-iommu: add SPAPR VFIO IOMMU device

2014-04-10 Thread Alexander Graf
On 07.04.14 06:07, Alexey Kardashevskiy wrote: On 04/03/2014 11:17 PM, Alexander Graf wrote: On 12.03.14 06:52, Alexey Kardashevskiy wrote: This adds SPAPR VFIO IOMMU device in order to support DMA operations for VFIO devices. Sorry if this has been mentioned before, but why exactly do you ne

Re: [Qemu-devel] [PATCH v5 08/11] spapr-iommu: add SPAPR VFIO IOMMU device

2014-04-06 Thread Alexey Kardashevskiy
On 04/03/2014 11:17 PM, Alexander Graf wrote: > > On 12.03.14 06:52, Alexey Kardashevskiy wrote: >> This adds SPAPR VFIO IOMMU device in order to support DMA operations >> for VFIO devices. > > Sorry if this has been mentioned before, but why exactly do you need a > separate IOMMU for VFIO? Could

Re: [Qemu-devel] [PATCH v5 08/11] spapr-iommu: add SPAPR VFIO IOMMU device

2014-04-03 Thread Alexander Graf
On 12.03.14 06:52, Alexey Kardashevskiy wrote: This adds SPAPR VFIO IOMMU device in order to support DMA operations for VFIO devices. Sorry if this has been mentioned before, but why exactly do you need a separate IOMMU for VFIO? Couldn't the existing IOMMU backend drive things? Alex

[Qemu-devel] [PATCH v5 08/11] spapr-iommu: add SPAPR VFIO IOMMU device

2014-03-11 Thread Alexey Kardashevskiy
This adds SPAPR VFIO IOMMU device in order to support DMA operations for VFIO devices. Signed-off-by: Alexey Kardashevskiy --- Changes: v7: * fixed to adjust changes to support VFIO KVM device --- hw/ppc/spapr_iommu.c | 97 ++ include/hw/ppc/spap