On Wed, Jun 12, 2019 at 06:59:38PM +0100, Jean-Philippe Brucker wrote: > Ease future extensions of struct iommu_fault_page_request and struct > iommu_fault_unrecoverable by adding a few bytes of padding. That way, a > new field can be added to either of these structures by simply introducing > a new flag. To extend it after the size limit is reached, a new fault > reporting structure will have to be negotiated with userspace. > > With 56 bytes of padding, the total size of iommu_fault is 64 bytes and > fits in a cache line on a lot of contemporary machines, while providing 16 > and 24 bytes of extension to structures iommu_fault_page_request and > iommu_fault_unrecoverable respectively. > > Signed-off-by: Jean-Philippe Brucker <[email protected]> > --- > include/uapi/linux/iommu.h | 2 ++ > 1 file changed, 2 insertions(+)
Applied, thanks. _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
