iommu/amd: Add support for IOMMU XT mode

Browse source

The AMD IOMMU XT mode enables interrupt remapping with 32-bit destination
APIC ID, which is required for x2APIC. The feature is available when
the XTSup bit is set in the IOMMU Extended Feature register
and/or the IVHD Type 10h IOMMU Feature Reporting field.

For more information, please see section "IOMMU x2APIC Support" of
the AMD I/O Virtualization Technology (IOMMU) Specification.

Cc: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

...

This commit is contained in:

Suravee Suthikulpanit 2018-06-27 10:31:22 -05:00 • committed by Joerg Roedel

parent e881dbd5d4

commit 90fcffd9cf

3 changed files with 50 additions and 13 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

21

drivers/iommu/amd_iommu.c

View file

25

drivers/iommu/amd_iommu_init.c

View file

17

drivers/iommu/amd_iommu_types.h

View file