>> diff --git a/drivers/vfio/pci/vfio_pci_core.c b/drivers/vfio/pci/vfio_pci_core.c >> index 1cbc990d42e0..c93bea18fc4b 100644 >> --- a/drivers/vfio/pci/vfio_pci_core.c >> +++ b/drivers/vfio/pci/vfio_pci_core.c >> @@ -1862,8 +1862,24 @@ int vfio_pci_core_mmap(struct vfio_device *core_vdev, struct vm_area_struct *vma >> /* >> * See remap_pfn_range(), called from vfio_pci_fault() but we can't >> * change vm_flags within the fault handler. Set them now. >> + * >> + * VM_ALLOW_ANY_UNCACHED: The VMA flag is implemented for ARM64, >> + * allowing KVM stage 2 device mapping attributes to use Normal-NC >> + * rather than DEVICE_nGnRE, which allows guest mappings >> + * supporting combining attributes (WC). ARM does not > > Nitpick: "supporting write-combining" (if you plan to respin). Ack.
