[Xen-devel] [RFC PATCH 00/23] xen/vIOMMU: Add vIOMMU support with irq remapping fucntion on Intel platform

[Lan Tianyu <tianyu.lan@xxxxxxxxx>]

This patchset is to introduce vIOMMU framework and add virtual VTD's
interrupt remapping support according "Xen virtual IOMMU high level
design doc V3"(https://lists.xenproject.org/archives/html/xen-devel/
2016-11/msg01391.html).

- vIOMMU framework
New framework provides viommu_ops and help functions to abstract
vIOMMU operations(E,G create, destroy, handle irq remapping request
and so on). Vendors(Intel, ARM, AMD and son) can implement their
vIOMMU callbacks.

- Xen vIOMMU device model in Qemu 
It's in charge of create/destroy vIOMMU in hypervisor via new vIOMMU
DMOP hypercalls. It will be required to pass virtual devices DMA
request to hypervisor when enable IOVA(DMA request without PASID)
function.

- Virtual VTD
In this patchset, we enable irq remapping function and covers both
MSI and IOAPIC interrupts. Don't support post interrupt mode emulation
and post interrupt mode enabled on host with virtual VTD. Will add
later.   

Chao Gao (19):
  Tools/libxc: Add viommu operations in libxc
  Tools/libacpi: Add DMA remapping reporting (DMAR) ACPI table
    structures
  Tools/libacpi: Add new fields in acpi_config to build DMAR table
  Tools/libacpi: Add a user configurable parameter to control vIOMMU
    attributes
  Tools/libxl: Inform device model to create a guest with a vIOMMU
    device
  x86/hvm: Introduce a emulated VTD for HVM
  X86/vvtd: Add MMIO handler for VVTD
  X86/vvtd: Set Interrupt Remapping Table Pointer through GCMD
  X86/vvtd: Process interrupt remapping request
  X86/vvtd: decode interrupt attribute from IRTE
  X86/vioapic: Hook interrupt delivery of vIOAPIC
  X86/vvtd: Enable Queued Invalidation through GCMD
  X86/vvtd: Enable Interrupt Remapping through GCMD
  x86/vpt: Get interrupt vector through a vioapic interface
  passthrough: move some fields of hvm_gmsi_info to a sub-structure
  Tools/libxc: Add a new interface to bind msi-ir with pirq
  X86/vmsi: Hook guest MSI injection
  X86/vvtd: Handle interrupt translation faults
  X86/vvtd: Add queued invalidation (QI) support

Lan Tianyu (4):
  VIOMMU: Add vIOMMU helper functions to create, destroy and query
    capabilities
  DMOP: Introduce new DMOP commands for vIOMMU support
  VIOMMU: Add irq request callback to deal with irq remapping
  VIOMMU: Add get irq info callback to convert irq remapping request

 tools/libacpi/acpi2_0.h                         |   45 +
 tools/libacpi/build.c                           |   58 ++
 tools/libacpi/libacpi.h                         |   12 +
 tools/libs/devicemodel/core.c                   |   69 ++
 tools/libs/devicemodel/include/xendevicemodel.h |   35 +
 tools/libs/devicemodel/libxendevicemodel.map    |    3 +
 tools/libxc/include/xenctrl.h                   |   17 +
 tools/libxc/include/xenctrl_compat.h            |    5 +
 tools/libxc/xc_devicemodel_compat.c             |   18 +
 tools/libxc/xc_domain.c                         |   55 +
 tools/libxl/libxl_create.c                      |   12 +-
 tools/libxl/libxl_dm.c                          |    9 +
 tools/libxl/libxl_dom.c                         |   85 ++
 tools/libxl/libxl_types.idl                     |    8 +
 tools/xl/xl_parse.c                             |   54 +
 xen/arch/x86/Makefile                           |    1 +
 xen/arch/x86/hvm/Makefile                       |    1 +
 xen/arch/x86/hvm/dm.c                           |   29 +
 xen/arch/x86/hvm/irq.c                          |   10 +
 xen/arch/x86/hvm/vioapic.c                      |   36 +
 xen/arch/x86/hvm/vmsi.c                         |   17 +-
 xen/arch/x86/hvm/vpt.c                          |    2 +-
 xen/arch/x86/hvm/vvtd.c                         | 1229 +++++++++++++++++++++++
 xen/arch/x86/viommu.c                           |   40 +
 xen/common/Makefile                             |    1 +
 xen/common/domain.c                             |    3 +
 xen/common/viommu.c                             |  119 +++
 xen/drivers/passthrough/io.c                    |  183 +++-
 xen/drivers/passthrough/vtd/iommu.h             |  213 +++-
 xen/include/asm-arm/viommu.h                    |   38 +
 xen/include/asm-x86/hvm/vioapic.h               |    1 +
 xen/include/asm-x86/msi.h                       |    3 +
 xen/include/asm-x86/viommu.h                    |   68 ++
 xen/include/public/arch-x86/hvm/save.h          |   19 +
 xen/include/public/domctl.h                     |    7 +
 xen/include/public/hvm/dm_op.h                  |   39 +
 xen/include/public/viommu.h                     |   38 +
 xen/include/xen/hvm/irq.h                       |   20 +-
 xen/include/xen/sched.h                         |    2 +
 xen/include/xen/viommu.h                        |   74 ++
 40 files changed, 2601 insertions(+), 77 deletions(-)
 create mode 100644 xen/arch/x86/hvm/vvtd.c
 create mode 100644 xen/arch/x86/viommu.c
 create mode 100644 xen/common/viommu.c
 create mode 100644 xen/include/asm-arm/viommu.h
 create mode 100644 xen/include/asm-x86/viommu.h
 create mode 100644 xen/include/public/viommu.h
 create mode 100644 xen/include/xen/viommu.h

-- 
1.8.3.1


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