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| author |   Jason Gunthorpe <jgg@nvidia.com> | 2023-07-17 15:12:03 -0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2023-07-26 10:19:42 -0300 |
| commit | 1d149ab2e0062a98b3676d6ee0aaa34be16f4d4f (patch) | |
| tree | 1b3f7c1df82c4edd948ac2331bf6a683cb660f24 /tools/perf/scripts/python | |
| parent | iommufd: Use the iommufd_group to avoid duplicate MSI setup (diff) | |
| download | wireguard-linux-1d149ab2e0062a98b3676d6ee0aaa34be16f4d4f.tar.xz wireguard-linux-1d149ab2e0062a98b3676d6ee0aaa34be16f4d4f.zip | |
iommufd: Make sw_msi_start a group global
The sw_msi_start is only set by the ARM drivers and it is always constant.
Due to the way vfio/iommufd allow domains to be re-used between
devices we have a built in assumption that there is only one value
for sw_msi_start and it is global to the system.
To make replace simpler where we may not reparse the
iommu_get_resv_regions() move the sw_msi_start to the iommufd_group so it
is always available once any HWPT has been attached.
Link: https://lore.kernel.org/r/7-v8-6659224517ea+532-iommufd_alloc_jgg@nvidia.com
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions