Thread (6 messages) 6 messages, 4 authors, 2023-10-12

Re: [PATCH v6 4/9] mm: thp: Introduce anon_orders and anon_always_mask sysfs files

From: Andrew Morton <akpm@linux-foundation.org>
Date: 2023-10-10 00:21:12
Also in: linux-arm-kernel, linux-mm, lkml

On Sun, 08 Oct 2023 09:54:22 +1100 Michael Ellerman [off-list ref] wrote:
quoted
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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