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| author | Robin Murphy <robin.murphy@arm.com> | 2023-11-21 21:03:59 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2023-11-27 13:03:14 +0300 |
| commit | a9c362db39207c4934c9125e56ed730c5297c37c (patch) | |
| tree | 339b2bc3d6f19a410fd4595e74c413019f7c0cde /Kbuild | |
| parent | 1d8d43bb984b9cfa7ff63dbd0e2f6e5775ff1fdb (diff) | |
| download | linux-a9c362db39207c4934c9125e56ed730c5297c37c.tar.xz | |
iommu: Validate that devices match domains
Before we can allow drivers to coexist, we need to make sure that one
driver's domain ops can't misinterpret another driver's dev_iommu_priv
data. To that end, add a token to the domain so we can remember how it
was allocated - for now this may as well be the device ops, since they
still correlate 1:1 with drivers. We can trust ourselves for internal
default domain attachment, so add checks to cover all the public attach
interfaces.
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/097c6f30480e4efe12195d00ba0e84ea4837fb4c.1700589539.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'Kbuild')
0 files changed, 0 insertions, 0 deletions