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| author | imp <imp@FreeBSD.org> | 2004-10-15 06:59:07 +0000 |
|---|---|---|
| committer | imp <imp@FreeBSD.org> | 2004-10-15 06:59:07 +0000 |
| commit | 2756c19f6134aa8d59e3b377cae64a189ba4d9c5 (patch) | |
| tree | 0bd38181decaa1ca1393e0a58ebfeb97a7a1f083 /sys/boot/common | |
| parent | 29e5c34577e662c041c2ea6e0854a5d4dd30298e (diff) | |
| download | FreeBSD-src-2756c19f6134aa8d59e3b377cae64a189ba4d9c5.zip FreeBSD-src-2756c19f6134aa8d59e3b377cae64a189ba4d9c5.tar.gz | |
document host_start_mem.
# feel free to wordsmith.
Suggested by: ru@
Diffstat (limited to 'sys/boot/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 f31580a..02bc376 100644 --- a/sys/boot/common/help.common +++ b/sys/boot/common/help.common @@ -311,6 +311,18 @@ this option provides a hint as to the actual size of system memory (which will be tested before use). + set hw.{acpi,pci}.host_start_mem=<value> + + Sets the lowest address that the pci code will assign + when it doesn't have other information about the address + to assign (like from a pci bridge). This is only useful + in older systems without a pci bridge. Also, it only + impacts devices that the BIOS doesn't assign to, typically + CardBus bridges. The default <value> is 0x80000000, but + some systems need values like 0xf0000000, 0xfc000000 or + 0xfe000000 may be suitable for older systems (the older + the system, the higher the number typically should be). + set hw.pci.enable_io_modes=<value> Enable PCI resources which are left off by some BIOSes |
