lkml.org 
[lkml]   [2020]   [Oct]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [RFC PATCH 0/3] Allocate memmap from hotadded memory (per device)
From
Date
On 27.10.20 16:40, Oscar Salvador wrote:
> On Thu, Oct 22, 2020 at 03:01:44PM +0200, David Hildenbrand wrote:
>>> This does not go without saying that the patchset is not 100% complete.
>>> It is missing:
>>>
>>> - a way to disable memmap_on_memory (either sysfs or boot_time cmd)
>>> - atm, arch_add_memory for s390 screams if an altmap is passed.
>>> I am still thinking of a way to nicely drop handle that.
>>> Maybe a function in s390 that sets memmap_on_memory false and
>>> stuff that check in support_memmap_on_memory function.
>>
>> Or simply implement altmap support ... shouldn't be too hard :)
>
> Yeah, I guess so, but first I would like to have everything else settled.
> So, gentle ping :-)
>

I'm planning on looking into patch #2/3 later this or next week (this
week is open source summit / KVM Forum).

One thing to look into right now is how to make this fly this with
vmemmap optimizations for hugetlb pages.

https://lkml.kernel.org/r/20201026145114.59424-1-songmuchun@bytedance.com

--
Thanks,

David / dhildenb

\
 
 \ /
  Last update: 2020-10-27 17:41    [W:1.098 / U:1.252 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site