[Xen-devel] [PATCH v9 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

v9:
- [PATCH v9 01/17] VT-d Posted-intterrupt (PI) design
    * Make the description more generic.

- [PATCH v9 02/17] Add cmpxchg16b support for x86-64
    * Make the *ptr operand an input and output.

- [PATCH v9 15/17] vmx: VT-d posted-interrupt core logic handling
    * Remove arch_vcpu_block_cancel() and arch_vcpu_wake_prepare().
    * Add vmx_pi_state_change() and call it before VM Entry.

Feng Wu (17):
 r   VT-d Posted-intterrupt (PI) design
     Add cmpxchg16b support for x86-64
 ra  iommu: Add iommu_intpost to control VT-d Posted-Interrupts feature
 r   vt-d: VT-d Posted-Interrupts feature detection
 ra  vmx: Extend struct pi_desc to support VT-d Posted-Interrupts
 r   vmx: Add some helper functions for Posted-Interrupts
 ra  vmx: Initialize VT-d Posted-Interrupts Descriptor
 r   vmx: Suppress posting interrupts when 'SN' is set
 r   VT-d: Remove pointless casts
  a  vt-d: Extend struct iremap_entry to support VT-d Posted-Interrupts
 r   vt-d: Add API to update IRTE when VT-d PI is used
  a  x86: move some APIC related macros to apicdef.h
  a  Update IRTE according to guest interrupt config changes
  a  vmx: Properly handle notification event when vCPU is running
     vmx: VT-d posted-interrupt core logic handling
     VT-d: Dump the posted format IRTE
 ra  Add a command line parameter for VT-d posted-interrupts
 
 r = has been 'Reviewed-by'
 a = has been 'Acked-by'

 docs/misc/vtd-pi.txt                   | 329 +++++++++++++++++++++++++++++++++
 docs/misc/xen-command-line.markdown    |   9 +-
 xen/arch/x86/hvm/hvm.c                 |   6 +
 xen/arch/x86/hvm/vlapic.c              |   5 -
 xen/arch/x86/hvm/vmx/vmcs.c            |  24 +++
 xen/arch/x86/hvm/vmx/vmx.c             | 270 ++++++++++++++++++++++++++-
 xen/common/schedule.c                  |   7 +-
 xen/drivers/passthrough/io.c           | 123 +++++++++++-
 xen/drivers/passthrough/iommu.c        |  16 +-
 xen/drivers/passthrough/vtd/intremap.c | 212 ++++++++++++++++-----
 xen/drivers/passthrough/vtd/iommu.c    |  14 +-
 xen/drivers/passthrough/vtd/iommu.h    |  51 +++--
 xen/drivers/passthrough/vtd/utils.c    |  40 ++--
 xen/include/asm-arm/domain.h           |   2 +
 xen/include/asm-x86/apicdef.h          |   3 +
 xen/include/asm-x86/domain.h           |   2 +
 xen/include/asm-x86/hvm/hvm.h          |   2 +
 xen/include/asm-x86/hvm/vmx/vmcs.h     |  24 ++-
 xen/include/asm-x86/hvm/vmx/vmx.h      |  27 +++
 xen/include/asm-x86/iommu.h            |   2 +
 xen/include/asm-x86/x86_64/system.h    |  33 ++++
 xen/include/xen/iommu.h                |   2 +-
 22 files changed, 1113 insertions(+), 90 deletions(-)
 create mode 100644 docs/misc/vtd-pi.txt

-- 
2.1.0


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