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Document the hw.physmem tunable. (There should be arch-specific tunable

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help sections.)
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Mike Smith 1999-07-02 20:38:05 +00:00
parent 595bd0d58e
commit 396641ab13
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=48477
1 changed files with 12 additions and 0 deletions
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sys/boot/common/help.common
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@ -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