Re: [Xen-devel] [PATCH v2 12/13] x86: add iommu_ops to modify and flush IOMMU mappings

2018-07-11 Thread Paul Durrant
> -Original Message- > From: George Dunlap [mailto:george.dun...@citrix.com] > Sent: 11 July 2018 12:46 > To: Paul Durrant ; xen-devel@lists.xenproject.org > Cc: Jan Beulich ; Andrew Cooper > ; George Dunlap > ; Ian Jackson ; Julien > Grall ; Konrad Rzeszutek Wilk > ; Stefano Stabellini ; T

Re: [Xen-devel] [PATCH v2 12/13] x86: add iommu_ops to modify and flush IOMMU mappings

2018-07-11 Thread George Dunlap
On 07/07/2018 12:05 PM, Paul Durrant wrote: > This patch adds iommu_ops to add (map) or remove (unmap) frames in the > domain's IOMMU mappings, and an iommu_op to synchronize (flush) those > manipulations with the hardware. > > Mappings added by the map operation are tracked and only those mapping