On 06/02/2010 12:42 PM, Joerg Roedel wrote:
On Tue, Jun 01, 2010 at 12:55:32PM +0300, Michael S. Tsirkin wrote:
There seems to be some misunderstanding. The userspace interface
proposed forces a separate domain per device and forces userspace to
repeat iommu programming for each device. We are better off sharing a
domain between devices and programming the iommu once.
The natural way to do this is to have an iommu driver for programming
iommu.
IMO a seperate iommu-userspace driver is a nightmare for a userspace
interface. It is just too complicated to use. We can solve the problem
of multiple devices-per-domain with an ioctl which allows binding one
uio-device to the address-space on another. Thats much simpler.
This is non trivial with hotplug.
--
error compiling committee.c: too many arguments to function
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