diff options
| author | Marc Zyngier <[email protected]> | 2021-09-29 17:38:41 +0100 |
|---|---|---|
| committer | Bjorn Helgaas <[email protected]> | 2021-11-04 16:29:30 -0500 |
| commit | 946d619fa25f55483206befb035fed6a99fbe7b5 (patch) | |
| tree | 808c519bd2557ea4061f34426800d59d94d8875d /drivers/usb/cdns3/cdns3-trace.c | |
| parent | 476c41ed4597512f9da334be8ddf2fb2262d3057 (diff) | |
iommu/dart: Exclude MSI doorbell from PCIe device IOVA range
The MSI doorbell on Apple HW can be any address in the low 4GB range.
However, the MSI write is matched by the PCIe block before hitting the
iommu. It must thus be excluded from the IOVA range that is assigned to any
PCIe device.
Link: https://lore.kernel.org/r/[email protected]
Tested-by: Alyssa Rosenzweig <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Sven Peter <[email protected]>
Diffstat (limited to 'drivers/usb/cdns3/cdns3-trace.c')
0 files changed, 0 insertions, 0 deletions