Oliver
>The alternative approach you mentioned that uses ioremap() should work
>fine though.
Great, thanks for this useful information Oliver. I am working on rebasing the
ioremap()
patch on 4.14 and will let you know how it goes.
> Also, Alexy (+cc) said he was interested in trying this on s
On Thu, Oct 26, 2017 at 1:34 AM, Oliver wrote:
> On Tue, Oct 24, 2017 at 7:17 AM, Stephen Bates wrote:
>>
>>> [3.537780] lpar: Attempting to resize HPT to shift 21
>>> [3.539251] Unable to resize hash page table to target order 21: -1
>>> [3.541079] Unable to create mapping for hot a
On Tue, Oct 24, 2017 at 7:17 AM, Stephen Bates wrote:
>
>> [3.537780] lpar: Attempting to resize HPT to shift 21
>> [3.539251] Unable to resize hash page table to target order 21: -1
>> [3.541079] Unable to create mapping for hot added memory
>> 0xc0002100..0xc00021000400
> [3.537780] lpar: Attempting to resize HPT to shift 21
> [3.539251] Unable to resize hash page table to target order 21: -1
> [3.541079] Unable to create mapping for hot added memory
> 0xc0002100..0xc00021000400: -2
> For #1 above please check if your qemu supports H_RES
On Sat, 21 Oct 2017 15:03:29 +
"Stephen Bates" wrote:
> > I am guessing that the hotplug of ZONE_DEVICE memory was done
> > incorrectly as it lead to HPT resizing (the system thinking this is
> > normal memory). Ideally one would expect that the driver would online
> > ZONE_DEVICE memory and
> I am guessing that the hotplug of ZONE_DEVICE memory was done
> incorrectly as it lead to HPT resizing (the system thinking this is
> normal memory). Ideally one would expect that the driver would online
> ZONE_DEVICE memory and not go through the HOTPLUG path. Are you using
> devm_memremap_page
On Wed, Oct 18, 2017 at 7:38 AM, Stephen Bates wrote:
> Hi All
>
> I am hoping someone can help shed some light on an issue I am seeing with my
> attempt to add p2pmem [1] to the ppc64el kernel. p2pmem is a (currently)
> out-of-tree patchset that allows one to add device memory with struct page
Hi All
I am hoping someone can help shed some light on an issue I am seeing with my
attempt to add p2pmem [1] to the ppc64el kernel. p2pmem is a (currently)
out-of-tree patchset that allows one to add device memory with struct page
backing into the Linux kernel. It leverages MEMORY_HOTPLUG and
