Re: [Qemu-devel] [PATCH 01/13] driver core: Add iommu_group tracking to struct device

2012-05-11 Thread Greg KH
On Fri, May 11, 2012 at 04:55:35PM -0600, Alex Williamson wrote: > IOMMU groups allow IOMMU drivers to represent DMA visibility > and isolation of devices. Multiple devices may be grouped > together for the purposes of DMA. Placing a pointer on > struct device enable easy access for things like s

Re: [Qemu-devel] [PATCH 01/13] driver core: Add iommu_group tracking to struct device

2012-05-11 Thread Alex Williamson
On Fri, 2012-05-11 at 16:38 -0700, Greg KH wrote: > On Fri, May 11, 2012 at 04:55:35PM -0600, Alex Williamson wrote: > > IOMMU groups allow IOMMU drivers to represent DMA visibility > > and isolation of devices. Multiple devices may be grouped > > together for the purposes of DMA. Placing a point

Re: [Qemu-devel] [PATCH 01/13] driver core: Add iommu_group tracking to struct device

2012-05-11 Thread Greg KH
On Fri, May 11, 2012 at 05:58:01PM -0600, Alex Williamson wrote: > On Fri, 2012-05-11 at 16:38 -0700, Greg KH wrote: > > On Fri, May 11, 2012 at 04:55:35PM -0600, Alex Williamson wrote: > > > IOMMU groups allow IOMMU drivers to represent DMA visibility > > > and isolation of devices. Multiple devi

[Qemu-devel] [PATCH 01/13] driver core: Add iommu_group tracking to struct device

2012-05-11 Thread Alex Williamson
IOMMU groups allow IOMMU drivers to represent DMA visibility and isolation of devices. Multiple devices may be grouped together for the purposes of DMA. Placing a pointer on struct device enable easy access for things like streaming DMA programming and drivers like VFIO. Signed-off-by: Alex Will