> The crashkernel reservation for kdump is a must, there are already a lot > of different problems need to consider, for example the low and high > memory issues, and a lot of other things. I'm not convinced to enable > this for kexec reboot. > > This really looks to workaround the arm64 issue and move the > complication to kernel. I will be working on MMU arm64 kernel relocation solution. Pasha > > > On, the other hand hibernate does something similar already, but there > > MMU never needs to be disabled, and also by the time machine_kexec() > > is called, allocator is not available, as we can't fail to do reboot, > > so page table must be pre-allocated during kernel load time. > > > > Note: the above time is relocation time only. Purgatory usually also > > computes checksum, but that is skipped, because --no-check is used when > > kernel image is loaded via kexec. > > > > Pavel Tatashin (5): > > kexec: quiet down kexec reboot > > kexec: add resource for normal kexec region > > kexec: export common crashkernel/kexeckernel parser > > kexec: use reserved memory for normal kexec reboot > > arm64, kexec: reserve kexeckernel region > > > > .../admin-guide/kernel-parameters.txt | 7 ++ > > arch/arm64/kernel/setup.c | 5 ++ > > arch/arm64/mm/init.c | 83 ++++++++++++------- > > include/linux/crash_core.h | 6 ++ > > include/linux/ioport.h | 1 + > > include/linux/kexec.h | 6 +- > > kernel/crash_core.c | 27 +++--- > > kernel/kexec_core.c | 50 +++++++---- > > 8 files changed, 127 insertions(+), 58 deletions(-) > > > > -- > > 2.22.0 > > > > > > _______________________________________________ > > kexec mailing list > > kexec@xxxxxxxxxxxxxxxxxxx > > http://lists.infradead.org/mailman/listinfo/kexec > > Thanks > Dave
