On Wed, Jul 20, 2022 at 2:59 AM Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> wrote: > > On Mon, Jul 18, 2022 at 07:39:22PM +0200, Alexander Potapenko wrote: > > On Wed, Jul 13, 2022 at 1:13 AM Kirill A. Shutemov > > <kirill.shutemov@xxxxxxxxxxxxxxx> wrote: > > > > > > Linear Address Masking[1] (LAM) modifies the checking that is applied to > > > 64-bit linear addresses, allowing software to use of the untranslated > > > address bits for metadata. > > > > > > The patchset brings support for LAM for userspace addresses. For what it's worth, there's an LLVM bot running basic HWASan tests on QEMU with the latest LAM patches here: https://lab.llvm.org/buildbot/#/builders/169 So far the bot is happy, giving us some sense of LAM_U57 support being sane. I'll add some tags to individual patches.