PMAP_INIT(9)

🎀 NAME 🎀

okay bestie, this is PMAP_INIT(9) from the Kernel Developer's Manual, and it's literally the page for pmap_init, pmap_init2 — initialize the pmap subsystem. That's the whole assignment. 💖

✨ SYNOPSIS ✨

#include <sys/param.h>
#include <vm/vm.h>
#include <vm/pmap.h>

void
pmap_init(void);

void
pmap_init2(void);

🦋 DESCRIPTION 🦋

okay so pmap_init() initializes the pmap(9) sub-system. It gets called during system initialization by vm_init(), and its whole job is to initialize any structures that the pmap_init system needs in order to map between physical and virtual memory. main character energy, honestly. 🔥

then there's pmap_init2(), which initializes a zone for the PV entries. those PV entries are used to implement page sharing at the physical level. a high water mark is set so that the system can recover from excessive numbers of PV entries — like, the system has a little safety net and we love that for it. 🫶

🔎 SEE ALSO 🔎

• pmap(9) — go read it bestie, it's the related page 👀

👑 AUTHORS 👑

This manual page was written by Bruce M Simpson <bms@spc.org> — iconic behavior, no cap. 🎀

okay that's the whole page, bestie 💖 — source/version energy: Debian; date energy: June 10, 2005; PMAP_INIT(9) vibes throughout. bye bestie, slay responsibly! ✨💅