Badari Pulavarty wrote: > On Tue, 2007-10-02 at 13:11 -0700, Geoff Levand wrote: >> Hi Badari, >> >> Badari Pulavarty wrote: >> > Hi Paul & Ben, >> > >> > I am trying to get hotplug memory remove working on ppc64. >> > In order to verify a given memory region, if its valid or not - >> > current hotplug-memory patches used /proc/iomem. On IA64 and >> > x86-64 /proc/iomem shows all memory regions. >> > >> > I am wondering, if its acceptable to do the same on ppc64 also ? >> > Otherwise, we need to add arch-specific hooks in hotplug-remove >> > code to be able to do this. >> >> >> It seems the only reasonable place is in /proc/iomem, as the the >> generic memory hotplug routines put it in there, and if you have >> a ppc64 system that uses add_memory() you will have mem info in >> several places, none of which are complete. > > Well, this information exists in various places (lmb structures > in the kernel), /proc/device-tree for various users. I want to > find out what ppc experts think about making this available through > /proc/iomem also since generic memory hotplug routines expect > it there.
Well, I can't say I am one of those experts you seek, but for PS3 we already have the hotplug mem in /proc/iomem (I set it up to use add_memory()), so it seems reasonable to have the bootmem there too. -Geoff _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
