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(-)
--
2.7.4
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