iommu/amd: Modify clear_dte_entry() to avoid in-place update

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By reusing the make_clear_dte() and update_dte256().

Also, there is no need to set TV bit for non-SNP system when clearing DTE
for blocked domain, and no longer need to apply erratum 63 in clear_dte()
since it is already stored in struct ivhd_dte_flags and apply in
set_dte_entry().

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20241118054937.5203-8-suravee.suthikulpanit@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Suravee Suthikulpanit 2024-11-18 05:49:35 +00:00 • committed by Joerg Roedel

parent a2ce608a1e

commit 66ea3f96ae

1 changed files with 9 additions and 12 deletions

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drivers/iommu/amd/iommu.c

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