[PATCH 0/11] Factor VT-d KVM functions into a generic API

[Joerg Roedel <joerg.roedel@amd.com>]

This patch series makes the current KVM device passthrough code generic
enough so that other IOMMU implementation can also plug into this code.
It works by factoring the functions Vt-d code exports to KVM into a
generic interface which allows different backends.

This is the fourth version of the patchset. I rebased these patches onto
the 17-patches post of Han Weidongs multiple device assignment work and
included changes to the commit-messages according the comments I got
from the review.

This a basic implementation of a generic interface. It can and should be
improved later to support more types of hardware IOMMUs then VT-d and
AMD IOMMU.

Since I have no VT-d hardware available these patches are only compile
tested on x86 and ia64 for now.

Please review, comment and test these patches.

Thanks,

Joerg

diffstat:

 arch/ia64/Kconfig                |    3 +
 arch/ia64/include/asm/kvm_host.h |    2 +-
 arch/ia64/kvm/Makefile           |    4 +-
 arch/ia64/kvm/kvm-ia64.c         |    3 +-
 arch/x86/Kconfig                 |    3 +
 arch/x86/include/asm/kvm_host.h  |    2 +-
 arch/x86/kvm/Makefile            |    4 +-
 arch/x86/kvm/x86.c               |    3 +-
 drivers/base/Makefile            |    1 +
 drivers/base/iommu.c             |  100 +++++++++++++++++++++++++++++++
 drivers/pci/intel-iommu.c        |  121 ++++++++++++++++++++++---------------
 include/linux/intel-iommu.h      |   21 -------
 include/linux/iommu.h            |  112 +++++++++++++++++++++++++++++++++++
 include/linux/kvm_host.h         |    6 +-
 virt/kvm/{vtd.c => iommu.c}      |   45 +++++++--------
 virt/kvm/kvm_main.c              |    2 +-
 16 files changed, 326 insertions(+), 106 deletions(-)