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@lists.xensource.com
http://lists.xensource.com/xen-devel
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@lists.xensource.com
http://lists.xensource.com/xen-devel