[PATCH v2 0/3] iommu/amd: Enable x2APIC support

[Suravee Suthikulpanit <suravee.suthikulpanit-5C7GfCeVMHo@public.gmane.org>]

This series enable x2APIC support for AMD platform by enabling
AMD IOMMU XT mode to allow interrupt remapping with 32-bit
destination APIC ID.

For full x2APIC support, the following patches are also required
(already available in v4.18-rc1)
  * 6c4f5abaf356 ("x86/CPU: Modify detect_extended_topology() to return result")
  * 3986a0a805e6 ("x86/CPU/AMD: Derive CPU topology from CPUID function 0xB when available")

Thanks,
Suravee

Changes from V1 (https://lkml.org/lkml/2018/6/22/645):
  * 3/3: Declare the variable amd_iommu_xt_mode as static (per kbuild test robot)

Suravee Suthikulpanit (3):
  x86: irq_remapping: Move irq remapping mode enum
  iommu/amd: Add support for higher 64-bit IOMMU Control Register
  iommu/amd: Add support for IOMMU XT mode

 arch/x86/include/asm/irq_remapping.h |  5 ++++
 drivers/iommu/amd_iommu.c            | 21 +++++++++++----
 drivers/iommu/amd_iommu_init.c       | 51 +++++++++++++++++++++++++-----------
 drivers/iommu/amd_iommu_types.h      | 17 +++++++-----
 include/linux/dmar.h                 |  5 ----
 5 files changed, 68 insertions(+), 31 deletions(-)

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2.7.4