[Xen-devel] [PATCH 0/6] IOMMU, vtd and iotlb flush rework

[Jean Guyader <jean.guyader@xxxxxxxxxxxxx>]

In one of my previous email I detailed a bug I was seeing when passing
through a Intel GPU on a guest that has more that 4G or RAM.

Allen suggested that I go for the Plan B but after a discussion with Tim
we agreed that Plan B was way to disruptive in term of code change.

This patch series implements Plan A.

http://xen.1045712.n5.nabble.com/VTD-Intel-iommu-IOTLB-flush-really-slow-td4952866.html

Jean Guyader (6):
      vtd: Refactor iotlb flush code
      iommu: Introduce iommu_flush and iommu_flush_all.
      add_to_physmap: Move the code for XENMEM_add_to_physmap.
      mm: Add new map space for add_to_physmap, XENMAPSPACE_gmfn_range.
      hvmloader: Change memory relocation loop when overlap with PCI hole.
      Introduce domain flag (dont_flush_iotlb) to avoid unnecessary iotlb flush.

 tools/firmware/hvmloader/pci.c      |   20 +++-
 xen/arch/x86/mm.c                   |  197 ++++++++++++++++++++---------------
 xen/drivers/passthrough/iommu.c     |   26 +++++
 xen/drivers/passthrough/vtd/iommu.c |  100 ++++++++++--------
 xen/include/public/memory.h         |    4 +
 xen/include/xen/iommu.h             |    5 +
 xen/include/xen/sched.h             |    1 +
 7 files changed, 222 insertions(+), 131 deletions(-)

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel