iommu/vt-d: Make sure RMRRs are mapped before domain goes public

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When a domain is allocated through the get_valid_domain_for_dev
path, it will be context-mapped before the RMRR regions are
mapped in the page-table. This opens a short time window
where device-accesses to these regions fail and causing DMAR
faults.

Fix this by mapping the RMRR regions before the domain is
context-mapped.

Signed-off-by: Joerg Roedel <jroedel@suse.de>

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This commit is contained in:

Joerg Roedel 2016-08-25 13:52:51 +02:00

parent 76208356a0

commit 1c5ebba95b

1 changed files with 20 additions and 7 deletions

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drivers/iommu/intel-iommu.c

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