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| author |   Joerg Roedel <jroedel@suse.de> | 2016-08-25 13:52:51 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2016-09-05 13:00:28 +0200 |
| commit | 1c5ebba95b486f1ea0e17d76dd8f6d7f1a8d1e89 (patch) | |
| tree | 9514acd0448ff520f87ceaedf3eeff3e183aea50 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | iommu/vt-d: Split up get_domain_for_dev function (diff) | |
| download | wireguard-linux-1c5ebba95b486f1ea0e17d76dd8f6d7f1a8d1e89.tar.xz wireguard-linux-1c5ebba95b486f1ea0e17d76dd8f6d7f1a8d1e89.zip | |
iommu/vt-d: Make sure RMRRs are mapped before domain goes public
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>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions