iommu/amd: Add 5 level guest page table support

Browse source

Newer AMD IOMMU supports 5 level guest page table (v2 page table). If both
processor and IOMMU supports 5 level page table then enable it. Otherwise
fall back to 4 level page table.

Co-developed-by: Wei Huang <wei.huang2@amd.com>
Signed-off-by: Wei Huang <wei.huang2@amd.com>
Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20230310090000.1117786-1-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

...

This commit is contained in:

Vasant Hegde 2023-03-10 09:00:00 +00:00 • committed by Joerg Roedel

parent 4d4a0dbab2

commit f594496403

5 changed files with 40 additions and 5 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

1

drivers/iommu/amd/amd_iommu.h

View file

7

drivers/iommu/amd/amd_iommu_types.h

View file

23

drivers/iommu/amd/init.c

View file

9

drivers/iommu/amd/io_pgtable_v2.c

View file

5

drivers/iommu/amd/iommu.c

View file