On Fri, 23 Feb 2024 at 18:01, Jonathan Cameron <jonathan.came...@huawei.com> wrote: > > Seen testing of CXL emulation on arm64 (currently out of tree). > > CXL interleave occurs at subpage granularity so is emulated using an IO > Memory Region. The memory is general purpose and as such may contain page > tables. FEAT_HADFS using atomic accesses from the page table walkers to > update accessed and dirty bits. > > Note that disabling kernel support this ARM 8.1 feature avoids this issue > as the PTW no longer does an atomic update of the page table entries, but > that is a nasty workaround beyond its use in root causing this issue. > > Signed-off-by: Jonathan Cameron <jonathan.came...@huawei.com> > ---
Applied to target-arm.next, thanks. -- PMM
