Messages in this thread | | | Date | Thu, 11 Sep 2014 13:45:14 +0300 | From | Boaz Harrosh <> | Subject | Re: [Linux-nvdimm] [PATCH v2] pmem: Initial version of persistent memory driver |
| |
On 09/11/2014 02:01 AM, Dan Williams wrote: <> > > Imagine you want to deploy a policy like "use half of the memory > provided by the dimm in slot3, i.e. the only one with a battery". > That sort of thing gets unwieldy in a command line string compared to > a description table format that we can update at will. >
Actually it is easy to do, why? I do this here in the lab all the time. with a "command line" with this code you see here.
[DDR3 NvDIMM which means I need memmap=16G\$32G on Kernel command line. Then: modprobe pmem map=8G@32G,4G@44G,... and so on Just as a simple example where 2/4-3/4 addresses are not used. You can have holes in the middle or what ever you want. This here is just a table in comma-separated format. If we need like flags in future we can extend the format to nn@ss:flags, but I do no have any 3rd column yet]
And again I have in the pipe a dynamic interface added on top of the module param one. So it will all be there soon. Without reverting the old one.
Thanks Boaz
| |