Re: New pmap module for m68k

At Mon, 10 Nov 2025 23:55:42 +0900,
Izumi Tsutsui wrote:
> > No hard limit I know if, it's just what I tried.  The Qemu virt68k machine
> > does have some sort of limit, because the I/O devices are at the top of the
> > physical address space.  Obviously can't put RAM there.
> 
> isaki@ said Qemu/virt68k used the last 4KB space for I/O devices and
> theoretically it could handle ~4GB RAMs, but last time I tried qemu 9.1.2
> it complained around ~3200MB even on the NetBSD/amd64 10.1 host:

Make one correction.  Qemu/virt68k uses the last 16MB for I/O devices.
But I don't know about the limit of qemu, either.
---
Tetsuya Isaki <[email protected] / [email protected]>