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| author | msmith <msmith@FreeBSD.org> | 1999-07-02 20:38:05 +0000 |
|---|---|---|
| committer | msmith <msmith@FreeBSD.org> | 1999-07-02 20:38:05 +0000 |
| commit | 2b045d409d22ece77bb082c730e90280cb49e4f3 (patch) | |
| tree | 3e485bda5cd3efaf82e1b30857d5c9ec9f3f15e5 /sys/boot/common/help.common | |
| parent | 070bfcfed096f1a20d870d3ecff5859584110c88 (diff) | |
| download | FreeBSD-src-2b045d409d22ece77bb082c730e90280cb49e4f3.zip FreeBSD-src-2b045d409d22ece77bb082c730e90280cb49e4f3.tar.gz | |
Document the hw.physmem tunable. (There should be arch-specific tunable
help sections.)
Diffstat (limited to 'sys/boot/common/help.common')
| -rw-r--r-- | sys/boot/common/help.common | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sys/boot/common/help.common b/sys/boot/common/help.common index 95c075e..d2b0bba 100644 --- a/sys/boot/common/help.common +++ b/sys/boot/common/help.common @@ -251,6 +251,18 @@ Overrides the compile-time set value of TCBHASHSIZE or the preset default of 512. Must be a power of 2. + set hw.physmem=<value> MAXMEM (i386 only) + + Limits the amount of physical memory space available to + the system to <value> bytes. <value> may have a k, M or G + suffix to indicate kilobytes, megabytes and gigabytes + respectively. Note that the current i386 architecture + limits this value to 4GB. + + On systems where memory cannot be accurately probed, + this option provides a hint as to the actual size of + system memory (which will be tested before use). + ################################################################################ # Tshow DShow the values of variables |
