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Commit 8c8803c5 authored by Yijing Wang's avatar Yijing Wang Committed by Bjorn Helgaas
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PCI: Document hpiosize= and hpmemsize= resource reservation parameters 



Document PCI hotplug resource reservation parameters hpiosize and
hpmemsize.  These parameters override default hotplug I/O size (256 bytes)
and default mem size (2M).

Signed-off-by: default avatarYijing Wang <wangyijing@huawei.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent 1c531d82

Documentation/kernel-parameters.txt

+6 −0
Original line number Diff line number Diff line
@@ -2248,6 +2248,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted. 
				the default.

				off: Turn ECRC off

				on: Turn ECRC on.

		hpiosize=nn[KMG]	The fixed amount of bus space which is

				reserved for hotplug bridge's IO window.

				Default size is 256 bytes.

		hpmemsize=nn[KMG]	The fixed amount of bus space which is

				reserved for hotplug bridge's memory window.

				Default size is 2 megabytes.

		realloc=	Enable/disable reallocating PCI bridge resources

				if allocations done by BIOS are too small to

				accommodate resources required by all child