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| author | Yijing Wang <wangyijing@huawei.com> | 2013-01-23 20:29:06 +0800 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2013-01-31 09:07:33 -0700 |
| commit | 8c8803c5968bd82ad3d65e8603c6bcf2d9674d83 (patch) | |
| tree | a3ee5b9da1caab27872a5d47bc6ffd9a14cffd35 /Documentation/kernel-parameters.txt | |
| parent | 1c531d82ee1a220ae7132ba0eb31edaf186b56d1 (diff) | |
| download | lwn-8c8803c5968bd82ad3d65e8603c6bcf2d9674d83.tar.gz lwn-8c8803c5968bd82ad3d65e8603c6bcf2d9674d83.zip | |
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: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 363e348bff9b..69f97a836600 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -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 |