[PATCH v2 0/8] Make x86 IOMMU driver support configurable

[Xenia Ragiadakou <burzalodowa@xxxxxxxxx>]

This series aims to provide a means to render the iommu driver support for x86
configurable. Currently, irrespectively of the target platform, both AMD and
Intel iommu drivers are built. This is the case because the existent Kconfig
infrastructure does not provide any facilities for finer-grained configuration.

The series adds two new Kconfig options, AMD_IOMMU and INTEL_IOMMU, that can be
used to generate a tailored iommu configuration for a given platform.

This version of the series addresses the initial comments made in the RFC
version to facilitate further review of the parts that need more feedback.

Xenia Ragiadakou (8):
  x86/iommu: introduce AMD-Vi and Intel VT-d Kconfig options
  x86/iommu: amd_iommu_perdev_intremap is AMD-Vi specific
  x86/iommu: iommu_igfx, iommu_qinval and iommu_snoop are VT-d specific
  x86/acpi: separate AMD-Vi and VT-d specific functions
  x86/iommu: the code addressing CVE-2011-1898 is VT-d specific
  x86/iommu: call pi_update_irte through an hvm_function callback
  x86/dpci: move hvm_dpci_isairq_eoi() to generic HVM code
  x86/iommu: make AMD-Vi and Intel VT-d support configurable

 xen/arch/x86/hvm/vmx/vmx.c               | 10 ++++
 xen/arch/x86/include/asm/acpi.h          | 14 ++++++
 xen/arch/x86/include/asm/hvm/hvm.h       | 15 ++++++
 xen/arch/x86/include/asm/hvm/vmx/vmx.h   | 11 ++++
 xen/arch/x86/include/asm/iommu.h         |  5 +-
 xen/arch/x86/pv/hypercall.c              |  2 +
 xen/arch/x86/x86_64/entry.S              |  2 +
 xen/drivers/passthrough/Kconfig          | 24 +++++++++
 xen/drivers/passthrough/Makefile         |  4 +-
 xen/drivers/passthrough/amd/iommu_init.c |  2 +
 xen/drivers/passthrough/iommu.c          |  9 +++-
 xen/drivers/passthrough/vtd/x86/Makefile |  1 -
 xen/drivers/passthrough/vtd/x86/hvm.c    | 64 ------------------------
 xen/drivers/passthrough/x86/hvm.c        | 48 ++++++++++++++++--
 xen/include/xen/acpi.h                   |  3 --
 xen/include/xen/iommu.h                  |  7 ++-
 16 files changed, 141 insertions(+), 80 deletions(-)
 delete mode 100644 xen/drivers/passthrough/vtd/x86/hvm.c

-- 
2.37.2