From: Greg Kurz <groug@kaod.org>
To: Serhii Popovych <spopovyc@redhat.com>
Cc: qemu-ppc@nongnu.org, david@gibson.dropbear.id.au,
qemu-devel@nongnu.org, bharata@linux.vnet.ibm.com
Subject: Re: [Qemu-devel] [Qemu-ppc] [PATCH for 2.13 0/2] target/ppc: Support adding memory to initially memory-less NUMA nodes
Date: Fri, 6 Apr 2018 10:21:36 +0200 [thread overview]
Message-ID: <20180406102136.57efebb1@bahia.lan> (raw)
In-Reply-To: <1522938923-96058-1-git-send-email-spopovyc@redhat.com>
On Thu, 5 Apr 2018 10:35:21 -0400
Serhii Popovych <spopovyc@redhat.com> wrote:
> Now PowerPC Linux kernel supports hot-add to NUMA nodes not populated
> initially with memory we can enable such support in qemu. This requires
> two changes:
>
> o Add device tree property "ibm,max-associativity-domains" to let
> guest kernel chance to find max possible NUMA node
>
> o Revert commit b556854bd852 ("spapr: Don't allow memory hotplug to
> memory less nodes") to remove check for hot-add to memory-less node.
>
But the series do the changes in the opposite order...
IIUC correctly a recent kernel will mis-behave as before linux commit
a346137e9142 if the property is not present... ie, patch 2 should come
first.
> See description messges for individual changes for more details.
>
> Serhii Popovych (2):
> Revert "spapr: Don't allow memory hotplug to memory less nodes"
> spapr: Add ibm,max-associativity-domains property
>
> hw/ppc/spapr.c | 33 +++++++++++----------------------
> 1 file changed, 11 insertions(+), 22 deletions(-)
>
next prev parent reply other threads:[~2018-04-06 8:21 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-05 14:35 [Qemu-devel] [PATCH for 2.13 0/2] target/ppc: Support adding memory to initially memory-less NUMA nodes Serhii Popovych
2018-04-05 14:35 ` [Qemu-devel] [PATCH for 2.13 1/2] Revert "spapr: Don't allow memory hotplug to memory less nodes" Serhii Popovych
2018-04-06 3:58 ` Bharata B Rao
2018-04-06 5:48 ` Serhii Popovych
2018-04-10 4:23 ` David Gibson
2018-04-05 14:35 ` [Qemu-devel] [PATCH for 2.13 2/2] spapr: Add ibm, max-associativity-domains property Serhii Popovych
2018-04-10 4:29 ` David Gibson
2018-04-06 8:21 ` Greg Kurz [this message]
2018-04-10 4:24 ` [Qemu-devel] [Qemu-ppc] [PATCH for 2.13 0/2] target/ppc: Support adding memory to initially memory-less NUMA nodes David Gibson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180406102136.57efebb1@bahia.lan \
--to=groug@kaod.org \
--cc=bharata@linux.vnet.ibm.com \
--cc=david@gibson.dropbear.id.au \
--cc=qemu-devel@nongnu.org \
--cc=qemu-ppc@nongnu.org \
--cc=spopovyc@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).