On Tue, Jun 8, 2021 at 3:52 PM HAGIO KAZUHITO(萩尾 一仁) <k-hagio-ab@xxxxxxx> wrote: > > -----Original Message----- > > > > At present, we have the following important changes for arm64 memory > > layout: > > > > -1. redesigned ARM64 kernel virtual memory layout and associated KASLR > > support that was introduced in Linux 4.6. And NEW_VMEMMAP is used to > > flag it. > > -2. memory layout flipped just right before introducing 52-bits kernel. > > -3. introducing of vabits_actual and phyvirt_offset in kernel > > -4. removing phyvirt_offset. > > > > These changes have effects on PTOV()/VTOP() formula. So introducing a > > dedicate field mmlayout_flags to record it. > > arm64 already has machine_specific.flags, can't we use this? > Yes, flags should have enough capacity for now. Adopt it. > Also, to record the type of memory layout is good, please display it with > "help -m". > OK, I will do it. > And I'd prefer shorter names like HAS_PHYSVIRT_OFFSET and FLIPPED_VM for > them, as they will be shown in "help -m". > Adopt. Thanks, Pingfan -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/crash-utility
