> From: Matt Evans <[email protected]> > Sent: Wednesday, June 10, 2026 11:43 PM > > A new VFIO feature, VFIO_DEVICE_FEATURE_DMA_BUF_MEMATTR, is added > to > set CPU-facing memory type attributes for a DMABUF exported from > vfio-pci. These are used for subsequent mmap()s of the buffer. > > There are two attributes supported: > - The default, VFIO_DEVICE_FEATURE_DMA_BUF_MEMATTR_NC > - VFIO_DEVICE_FEATURE_DMA_BUF_MEMATTR_WC, which results in WC > PTEs for the DMABUF's BAR region. > > Signed-off-by: Matt Evans <[email protected]>
Reviewed-by: Kevin Tian <[email protected]>
