[Xen-devel] [PATCH v6 00/18] 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


Feng Wu (18):
  VT-d Posted-intterrupt (PI) design
  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: Remove pointless casts
  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
  x86: move some APIC related macros to apicdef.h
  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
  vmx: Add some scheduler hooks for VT-d posted interrupts
  VT-d: Dump the posted format IRTE
  Add a command line parameter for VT-d posted-interrupts

 docs/misc/vtd-pi.txt                   | 332 +++++++++++++++++++++++++++++++++
 docs/misc/xen-command-line.markdown    |   9 +-
 xen/arch/x86/domain.c                  |  19 ++
 xen/arch/x86/hvm/vlapic.c              |   5 -
 xen/arch/x86/hvm/vmx/vmcs.c            |  21 +++
 xen/arch/x86/hvm/vmx/vmx.c             | 289 +++++++++++++++++++++++++++-
 xen/common/schedule.c                  |   2 +
 xen/drivers/passthrough/io.c           | 125 ++++++++++++-
 xen/drivers/passthrough/iommu.c        |  16 +-
 xen/drivers/passthrough/vtd/intremap.c | 199 +++++++++++++++-----
 xen/drivers/passthrough/vtd/iommu.c    |  17 +-
 xen/drivers/passthrough/vtd/iommu.h    |  50 +++--
 xen/drivers/passthrough/vtd/utils.c    |  59 ++++--
 xen/include/asm-arm/domain.h           |   2 +
 xen/include/asm-x86/apicdef.h          |   4 +
 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    |  28 +++
 xen/include/xen/iommu.h                |   2 +-
 22 files changed, 1155 insertions(+), 85 deletions(-)
 create mode 100644 docs/misc/vtd-pi.txt

-- 
2.1.0


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