iommu/amd: Introduce interrupt remapping ops structure

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Currently, IOMMU support two interrupt remapping table entry formats,
32-bit (legacy) and 128-bit (GA). The spec also implies that it might
support additional modes/formats in the future.

So, this patch introduces the new struct amd_irte_ops, which allows
the same code to work with different irte formats by providing hooks
for various operations on an interrupt remapping table entry.

Suggested-by: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Suravee Suthikulpanit 2016-08-23 13:52:34 -05:00 • committed by Joerg Roedel

parent a38180bd36

commit 880ac60e25

2 changed files with 205 additions and 5 deletions

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190

drivers/iommu/amd_iommu.c

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20

drivers/iommu/amd_iommu_types.h

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