Re: [Qemu-devel] [PATCH qemu v8 14/14] spapr_pci/spapr_pci_vfio: Support Dynamic DMA Windows (DDW)

2015-06-24 Thread Alexey Kardashevskiy
On 06/23/2015 04:38 PM, David Gibson wrote: On Thu, Jun 18, 2015 at 09:37:36PM +1000, Alexey Kardashevskiy wrote: This adds support for Dynamic DMA Windows (DDW) option defined by the SPAPR specification which allows to have additional DMA window(s) This implements DDW for emulated and VFIO

Re: [Qemu-devel] [PATCH qemu v8 14/14] spapr_pci/spapr_pci_vfio: Support Dynamic DMA Windows (DDW)

2015-06-23 Thread David Gibson
On Thu, Jun 18, 2015 at 09:37:36PM +1000, Alexey Kardashevskiy wrote: This adds support for Dynamic DMA Windows (DDW) option defined by the SPAPR specification which allows to have additional DMA window(s) This implements DDW for emulated and VFIO devices. As all TCE root regions are mapped

[Qemu-devel] [PATCH qemu v8 14/14] spapr_pci/spapr_pci_vfio: Support Dynamic DMA Windows (DDW)

2015-06-18 Thread Alexey Kardashevskiy
This adds support for Dynamic DMA Windows (DDW) option defined by the SPAPR specification which allows to have additional DMA window(s) This implements DDW for emulated and VFIO devices. As all TCE root regions are mapped at 0 and 64bit long (and actual tables are child regions), this replaces