msmith 8e8bb72bd2 Lightly overhaul the memory sizing code again. ... - The kernel environment variable 'hw.physmem' can be used to set the amount of physical memory space, based at 0, that FreeBSD will use. Any memory detected over this limit is ignored. Documentation for this is available under 'help set tunables' in the loader. - In the case where system memory size can't be accurately determined, hw.physmem is used as a best-guess memory size, but speculative probing will be used to determine actual memory size if any of the guesses or hints are 16M or more. - If RB_VERBOSE, we list the memory regions as we test them. - The compile-time option MAXMEM supplies a default value for 'hw.physmem'.		1999-07-02 20:33:32 +00:00
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amd64	Lightly overhaul the memory sizing code again.	1999-07-02 20:33:32 +00:00
conf	Put on my asbestos suit and attempt to tidy up and add some simple docs	1999-06-29 18:55:53 +00:00
include	Changes in the way that the APs are started appears to have removed the	1999-06-23 23:02:38 +00:00
isa	Shut up gcc.	1999-06-27 09:08:48 +00:00
pci	Move pcibus (host -> pci bus) probe/attach routines from nexus	1999-05-18 20:48:43 +00:00
Makefile	Update to know about current kernel directory layout.	1999-02-28 22:14:16 +00:00