Re: [PATCH 00/36] AArch64 Linux kernel port

[Geert Uytterhoeven]

On Sun, Jul 15, 2012 at 9:43 PM, Arnd Bergmann <arnd@xxxxxxxx> wrote:
> Yes, I agree that's the best way to handle this. Compared to other
> architectures, I think x86 is the only that allows booting either a
> 32 or 64 bit kernel on the same system. We used to support 32 bit
> kernels on 64 bit PowerMac, but nobody used it and we discontinued
> it long ago. Tile 64 bit is actually incompatible with 32 bit kernels
> at the architecture level and would require a third mode. On sparc,
> parisc and mips, AFAIK we could support 32 bit kernels on 64 bit
> machines, but never did.

Linux on MIPS supports both 32-bit and 64-bit kernels on 64-bit capable CPUs.

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
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