Il 27 agosto 2022 20:02:40 UTC, Samuel Thibault
<samuel.thiba...@gnu.org> ha scritto:
Samuel Thibault, le sam. 27 août 2022 21:41:57 +0200, a ecrit:
Mmm, on the set_cr3() in i386at_init call, it reboots...
Ah, reducing the memory size to 2G fixed it. The kernel_pmap->l4base
address was at 0xFFFD3000, apparently that was going up the roof :)
It'd be useful to test with larger memory sizes, since that's one of the
points of going 64bit ;)
Yes that is still a limitation, I forgot to add it to the commit
description. I think the simplest way to solve it would be to link to
the upper 2G and enhance pmap to handle L4 tables, but I was trying to
have something running until a shell prompt first :)
On 64 bit we could also remove the direct mapping of all the phisical
pages, right? IIRC it's needed only by the linux drivers.
Luca
