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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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 streaming
> DMA programming and drivers like VFIO.
> 
> Signed-off-by: Alex Williamson <alex.williamson@xxxxxxxxxx>

Can't you get this today from the iommu_ops pointer that is on the bus
that the device is associated with?  Or can devices on a bus have
different iommu_group pointers?

thanks,

greg k-h
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux