diff options
Diffstat (limited to 'backends/iommufd.c')
| -rw-r--r-- | backends/iommufd.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/backends/iommufd.c b/backends/iommufd.c index e0917923bf..2a33c7ab0b 100644 --- a/backends/iommufd.c +++ b/backends/iommufd.c @@ -245,6 +245,10 @@ int iommufd_backend_map_file_dma(IOMMUFDBackend *be, uint32_t ioas_id, .length = size, }; + if (cpr_is_incoming()) { + return 0; + } + if (!readonly) { map.flags |= IOMMU_IOAS_MAP_WRITEABLE; } @@ -274,6 +278,10 @@ int iommufd_backend_unmap_dma(IOMMUFDBackend *be, uint32_t ioas_id, .length = size, }; + if (cpr_is_incoming()) { + return 0; + } + ret = ioctl(fd, IOMMU_IOAS_UNMAP, &unmap); /* * IOMMUFD takes mapping as some kind of object, unmapping |