diff options
| author | Lu Baolu <baolu.lu@linux.intel.com> | 2024-07-10 16:33:40 +0800 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2024-07-12 09:00:19 -0300 |
| commit | d73cf5ff743b5a8de6fa20651baba5bd56ba98a3 (patch) | |
| tree | ff78fa82f9558ebfcfd637b6f7a68dd3fb6bac9f /scripts/gcc-plugins/gcc-common.h | |
| parent | 861f96a785149a0062cce6578e0fa7cb95435a7e (diff) | |
iommufd: Add check on user response code
The response code from user space is only allowed to be SUCCESS or
INVALID. All other values are treated by the device as a response code of
Response Failure according to PCI spec, section 10.4.2.1. This response
disables the Page Request Interface for the Function.
Add a check in iommufd_fault_fops_write() to avoid invalid response
code.
Fixes: 07838f7fd529 ("iommufd: Add iommufd fault object")
Link: https://lore.kernel.org/r/20240710083341.44617-3-baolu.lu@linux.intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'scripts/gcc-plugins/gcc-common.h')
0 files changed, 0 insertions, 0 deletions