PAE on i386

[Yoshihiro Ota]

Hi,

I recall this result was committed a while ago to 13-CURRENT:
https://svnweb.freebsd.org/base?view=revision&revision=343567

Is there a plan to MFC to 12-STABLE?
Does this feature results changing ABI?

Regards,
Hiro

On Sun, 20 Jan 2019 13:18:54 +0200
Konstantin Belousov <kib at freebsd.org> wrote:

> Hello,
> at https://reviews.freebsd.org/D18894 I put a review which main goal is
> to allow i386 kernels to use NX bits on capable hardware.  In essence,
> single kernel now can operate using either PAE or non-PAE pagetables,
> the selection is done at the cold (very early boot, before paging is
> turned on) time.
> 
> This together with earlier 4/4 work gives much more life into i386 kernels
> for whoever still needs them.  Please review/test, see the differential
> review text for more explanation.
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