On Sat, 4 Jun 2022, Richard Miller wrote:
There's a new patch bcm-lpae which uses the 64-bit page table format to
allow 32-bit ARM kernels to support more than 4GB of physical memory. At
present this is mainly of interest for the 8GB Raspberry Pi 4, but there's
nothing Pi-specific in the MMU
inspired by:
https://mazzo.li/posts/fast-pipes.html
I was curious to see how things stacked up on plan 9.
The machines are apples to oranges (my 9front box
is a 2015-ish era Zbox with a Intel Core i5-7300HQ
processor, and my work machine is a Linux with a
12 core Ryzen 9 3900X).
There's a new patch bcm-lpae which uses the 64-bit page table format to
allow 32-bit ARM kernels to support more than 4GB of physical memory. At
present this is mainly of interest for the 8GB Raspberry Pi 4, but there's
nothing Pi-specific in the MMU code so it may have future application for
