On Wed, Jun 20, 2018 at 5:24 PM, Andrey Konovalov <andreyknvl@xxxxxxxxxx> wrote: > arm64 has a feature called Top Byte Ignore, which allows to embed pointer > tags into the top byte of each pointer. Userspace programs (such as > HWASan, a memory debugging tool [1]) might use this feature and pass > tagged user pointers to the kernel through syscalls or other interfaces. > > This patch makes a few of the kernel interfaces accept tagged user > pointers. The kernel is already able to handle user faults with tagged > pointers and has the untagged_addr macro, which this patchset reuses. > > We're not trying to cover all possible ways the kernel accepts user > pointers in one patchset, so this one should be considered as a start. > > Thanks! > > [1] http://clang.llvm.org/docs/HardwareAssistedAddressSanitizerDesign.html Hi! Is there anything I should do to move forward with this? I've received zero replies to this patch set (v3 and v4) over the last month. Thanks!
