On Wed, Sep 2, 2020 at 5:41 PM Geert Uytterhoeven <geert+renesas@xxxxxxxxx> wrote: > Pass the following properties to the crash dump kernel, to provide a > modern DT interface between kexec and the crash dump kernel: > > - linux,elfcorehdr: ELF core header segment, similar to the > "elfcorehdr=" kernel parameter. > - linux,usable-memory-range: Usable memory reserved for the crash dump > kernel. > This makes the memory reservation explicit, so Linux no longer needs > to mask the program counter, and rely on the "mem=" kernel parameter > to obtain the start and size of usable memory. > > For backwards compatibility, the "elfcorehdr=" and "mem=" kernel > parameters are still appended to the kernel command line. > > Loosely based on the ARM64 version by Akashi Takahiro. > > Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> The counterpart patch for linux is "[PATCH] ARM: Parse kdump DT properties" (https://lore.kernel.org/r/20200902154538.6807-1-geert+renesas@xxxxxxxxx) Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
