@@ -3142,11 +3142,24 @@
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.
+ hpiosize=
+ Format:
+ <nn[KMG]>
+ <nn[KMG]>@][<domain>:]<bus>[:<slot>.<func>][; ...]
+ <nn[KMG]>@]pci:<vendor>:<device>\
+ [:<subvendor>:<subdevice>][; ...]
+ The fixed amount of bus space which is reserved
+ for the matching hotplug bridge(s)'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.
+ hpmemsize=
+ Format:
+ <nn[KMG]>[P]
+ <nn[KMG]>[P]@][<domain>:]<bus>[:<slot>.<func>][; ...]
+ <nn[KMG]>[P]@]pci:<vendor>:<device>\
+ [:<subvendor>:<subdevice>][; ...]
+ The fixed amount of bus space which is reserved
+ for the matching hotplug bridge(s)'s memory window.
+ 'P' specifies prefetchable.
Default size is 2 megabytes.
hpbussize=nn The minimum amount of additional bus numbers
reserved for buses below a hotplug bridge.
The expanded interface allows specifying sizes on a per-device/per-bus path granularity. Signed-off-by: Jon Derrick <jonathan.derrick@intel.com> --- Documentation/admin-guide/kernel-parameters.txt | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-)