[Xen-devel] [v4 00/17] Add VT-d Posted-Interrupts support

[Feng Wu <feng.wu@xxxxxxxxx>]

VT-d Posted-Interrupts is an enhancement to CPU side Posted-Interrupt.
With VT-d Posted-Interrupts enabled, external interrupts from
direct-assigned devices can be delivered to guests without VMM
intervention when guest is running in non-root mode.

You can find the VT-d Posted-Interrtups Spec. in the following URL:
http://www.intel.com/content/www/us/en/intelligent-systems/intel-technology/vt-directed-io-spec.html

This patch set follow the following design:
http://article.gmane.org/gmane.comp.emulators.xen.devel/236476

Feng Wu (17):
  VT-d Posted-intterrupt (PI) design
  Add helper macro for X86_FEATURE_CX16 feature detection
  Add cmpxchg16b support for x86-64
  iommu: Add iommu_intpost to control VT-d Posted-Interrupts feature
  vt-d: VT-d Posted-Interrupts feature detection
  vmx: Extend struct pi_desc to support VT-d Posted-Interrupts
  vmx: Add some helper functions for Posted-Interrupts
  vmx: Initialize VT-d Posted-Interrupts Descriptor
  vmx: Suppress posting interrupts when 'SN' is set
  vt-d: Extend struct iremap_entry to support VT-d Posted-Interrupts
  vt-d: Add API to update IRTE when VT-d PI is used
  Update IRTE according to guest interrupt config changes
  vmx: posted-interrupt handling when vCPU is blocked
  vmx: Properly handle notification event when vCPU is running
  arm: add a dummy arch hooks for scheduler
  vmx: Add some scheduler hooks for VT-d posted interrupts
  VT-d: Dump the posted format IRTE

 docs/misc/vtd-pi.txt                   | 333 +++++++++++++++++++++++++++++++++
 xen/arch/x86/domain.c                  |  10 +
 xen/arch/x86/hvm/vmx/vmcs.c            |  21 +++
 xen/arch/x86/hvm/vmx/vmx.c             | 288 +++++++++++++++++++++++++++-
 xen/common/schedule.c                  |   2 +
 xen/drivers/passthrough/io.c           | 124 +++++++++++-
 xen/drivers/passthrough/iommu.c        |  17 +-
 xen/drivers/passthrough/vtd/intremap.c | 199 +++++++++++++++-----
 xen/drivers/passthrough/vtd/iommu.c    |  18 +-
 xen/drivers/passthrough/vtd/iommu.h    |  46 +++--
 xen/drivers/passthrough/vtd/utils.c    |  49 ++++-
 xen/include/asm-arm/domain.h           |   2 +
 xen/include/asm-x86/cpufeature.h       |   2 +
 xen/include/asm-x86/domain.h           |   3 +
 xen/include/asm-x86/hvm/hvm.h          |   2 +
 xen/include/asm-x86/hvm/vmx/vmcs.h     |  26 ++-
 xen/include/asm-x86/hvm/vmx/vmx.h      |  28 +++
 xen/include/asm-x86/iommu.h            |   2 +
 xen/include/asm-x86/x86_64/system.h    |  32 ++++
 xen/include/xen/iommu.h                |   2 +-
 20 files changed, 1130 insertions(+), 76 deletions(-)
 create mode 100644 docs/misc/vtd-pi.txt

-- 
2.1.0


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