Messages in this thread | | | Date | Mon, 9 Oct 2023 17:20:29 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH v6 4/9] mm: thp: Introduce anon_orders and anon_always_mask sysfs files |
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On Sun, 08 Oct 2023 09:54:22 +1100 Michael Ellerman <mpe@ellerman.id.au> wrote:
> > I don't know why powerpc's PTE_INDEX_SIZE is variable. > > To allow a single vmlinux to boot using either the Hashed Page Table > MMU, or Radix Tree MMU, which have different page table geometry. > > That's a pretty crucial feature for distros, so that they can build a > single kernel to boot on Power8/9/10.
Dumb question: why can't distros ship two kernels and have the boot loader (or something else) pick the appropriate one?
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