Messages in this thread | | | Date | Wed, 30 Sep 2015 11:46:16 +0530 | From | Raghavendra K T <> | Subject | Re: [PATCH RFC 0/5] powerpc:numa Add serial nid support |
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On 09/30/2015 01:16 AM, Denis Kirjanov wrote: > On 9/29/15, Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> wrote: >> On 09/28/2015 10:34 PM, Nishanth Aravamudan wrote: >>> On 28.09.2015 [13:44:42 +0300], Denis Kirjanov wrote: >>>> On 9/27/15, Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> wrote: >>>>> Problem description: >>>>> Powerpc has sparse node numbering, i.e. on a 4 node system nodes are >>>>> numbered (possibly) as 0,1,16,17. At a lower level, we map the chipid >>>>> got from device tree is naturally mapped (directly) to nid. >>>> >>>> Interesting thing to play with, I'll try to test it on my POWER7 box, >>>> but it doesn't have the OPAL layer :( >> >> Hi Denis, >> Thanks for your interest. I have pushed the patches to >> >> https://github.com/ktraghavendra/linux/tree/serialnuma_v1 if it makes >> patches easy to grab. > > Thanks! > One sad thing is that I can't test the actual node id mapping now > since currently I have an access to machine with only one memory node > :/ Can we fake it through qemu? >
faking the sparse numa ids is possible with Nish's patch for qemu:
https://lists.gnu.org/archive/html/qemu-devel/2014-06/msg05826.html
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