From: Thomas Huth <thuth@redhat.com>
To: Nina Schoetterl-Glausch <nsg@linux.ibm.com>,
qemu-devel@nongnu.org, qemu-s390x@nongnu.org,
Eduardo Habkost <eduardo@habkost.net>,
Marcel Apfelbaum <marcel.apfelbaum@gmail.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Richard Henderson <richard.henderson@linaro.org>,
David Hildenbrand <david@redhat.com>,
Halil Pasic <pasic@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Eric Farman <farman@linux.ibm.com>,
Eric Blake <eblake@redhat.com>,
Markus Armbruster <armbru@redhat.com>,
Michael Roth <michael.roth@amd.com>
Cc: "Philippe Mathieu-Daudé" <philmd@linaro.org>,
"Yanan Wang" <wangyanan55@huawei.com>,
"Daniel P. Berrangé" <berrange@redhat.com>,
"Ilya Leoshkevich" <iii@linux.ibm.com>,
"Cleber Rosa" <crosa@redhat.com>,
"Wainer dos Santos Moschetta" <wainersm@redhat.com>,
"Beraldo Leal" <bleal@redhat.com>,
"Pierre Morel" <pmorel@linux.ibm.com>
Subject: Re: [PATCH v25 09/21] qapi/s390x/cpu topology: set-cpu-topology qmp command
Date: Fri, 6 Oct 2023 10:20:22 +0200 [thread overview]
Message-ID: <cf6089a4-7eed-4f5d-28df-4ff03389e9e6@redhat.com> (raw)
In-Reply-To: <20231005160155.1945588-10-nsg@linux.ibm.com>
On 05/10/2023 18.01, Nina Schoetterl-Glausch wrote:
> From: Pierre Morel <pmorel@linux.ibm.com>
>
> The modification of the CPU attributes are done through a monitor
> command.
>
> It allows to move the core inside the topology tree to optimize
> the cache usage in the case the host's hypervisor previously
> moved the CPU.
>
> The same command allows to modify the CPU attributes modifiers
> like polarization entitlement and the dedicated attribute to notify
> the guest if the host admin modified scheduling or dedication of a vCPU.
>
> With this knowledge the guest has the possibility to optimize the
> usage of the vCPUs.
>
> The command has a feature unstable for the moment.
>
> Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
> Reviewed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
> Co-developed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
> Signed-off-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
> ---
> qapi/machine-target.json | 42 +++++++++++++
> hw/s390x/cpu-topology.c | 132 +++++++++++++++++++++++++++++++++++++++
> 2 files changed, 174 insertions(+)
Reviewed-by: Thomas Huth <thuth@redhat.com>
next prev parent reply other threads:[~2023-10-06 8:21 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-05 16:01 [PATCH v25 00/21] s390x: CPU Topology Nina Schoetterl-Glausch
2023-10-05 16:01 ` [PATCH v25 01/21] qapi: machine.json: change docs regarding CpuInstanceProperties Nina Schoetterl-Glausch
2023-10-05 16:01 ` [PATCH v25 02/21] CPU topology: extend with s390 specifics Nina Schoetterl-Glausch
2023-10-12 11:02 ` Markus Armbruster
2023-10-13 12:58 ` Nina Schoetterl-Glausch
2023-10-13 13:39 ` Markus Armbruster
2023-10-05 16:01 ` [PATCH v25 03/21] s390x/cpu topology: add topology entries on CPU hotplug Nina Schoetterl-Glausch
2023-10-05 16:01 ` [PATCH v25 04/21] target/s390x/cpu topology: handle STSI(15) and build the SYSIB Nina Schoetterl-Glausch
2023-10-06 8:05 ` Thomas Huth
2023-10-12 11:07 ` Markus Armbruster
2023-10-05 16:01 ` [PATCH v25 05/21] s390x/sclp: reporting the maximum nested topology entries Nina Schoetterl-Glausch
2023-10-05 16:01 ` [PATCH v25 06/21] s390x/cpu topology: resetting the Topology-Change-Report Nina Schoetterl-Glausch
2023-10-05 16:01 ` [PATCH v25 07/21] s390x/cpu topology: interception of PTF instruction Nina Schoetterl-Glausch
2023-10-05 16:01 ` [PATCH v25 08/21] target/s390x/cpu topology: activate CPU topology Nina Schoetterl-Glausch
2023-10-05 16:01 ` [PATCH v25 09/21] qapi/s390x/cpu topology: set-cpu-topology qmp command Nina Schoetterl-Glausch
2023-10-06 8:20 ` Thomas Huth [this message]
2023-10-12 11:34 ` Markus Armbruster
2023-10-05 16:01 ` [PATCH v25 10/21] machine: adding s390 topology to query-cpu-fast Nina Schoetterl-Glausch
2023-10-12 11:37 ` Markus Armbruster
2023-10-05 16:01 ` [PATCH v25 11/21] machine: adding s390 topology to info hotpluggable-cpus Nina Schoetterl-Glausch
2023-10-05 16:01 ` [PATCH v25 12/21] qapi/s390x/cpu topology: CPU_POLARIZATION_CHANGE qapi event Nina Schoetterl-Glausch
2023-10-12 11:40 ` Markus Armbruster
2023-10-05 16:01 ` [PATCH v25 13/21] qapi/s390x/cpu topology: add query-s390x-cpu-polarization command Nina Schoetterl-Glausch
2023-10-12 11:41 ` Markus Armbruster
2023-10-05 16:01 ` [PATCH v25 14/21] docs/s390x/cpu topology: document s390x cpu topology Nina Schoetterl-Glausch
2023-10-05 16:01 ` [PATCH v25 15/21] tests/avocado: s390x cpu topology core Nina Schoetterl-Glausch
2023-10-05 16:01 ` [PATCH v25 16/21] tests/avocado: s390x cpu topology polarization Nina Schoetterl-Glausch
2023-10-05 16:01 ` [PATCH v25 17/21] tests/avocado: s390x cpu topology entitlement tests Nina Schoetterl-Glausch
2023-10-05 16:01 ` [PATCH v25 18/21] tests/avocado: s390x cpu topology test dedicated CPU Nina Schoetterl-Glausch
2023-10-05 16:01 ` [PATCH v25 19/21] tests/avocado: s390x cpu topology test socket full Nina Schoetterl-Glausch
2023-10-05 16:01 ` [PATCH v25 20/21] tests/avocado: s390x cpu topology dedicated errors Nina Schoetterl-Glausch
2023-10-05 16:01 ` [PATCH v25 21/21] tests/avocado: s390x cpu topology bad move Nina Schoetterl-Glausch
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=cf6089a4-7eed-4f5d-28df-4ff03389e9e6@redhat.com \
--to=thuth@redhat.com \
--cc=armbru@redhat.com \
--cc=berrange@redhat.com \
--cc=bleal@redhat.com \
--cc=borntraeger@linux.ibm.com \
--cc=crosa@redhat.com \
--cc=david@redhat.com \
--cc=eblake@redhat.com \
--cc=eduardo@habkost.net \
--cc=farman@linux.ibm.com \
--cc=iii@linux.ibm.com \
--cc=marcel.apfelbaum@gmail.com \
--cc=michael.roth@amd.com \
--cc=nsg@linux.ibm.com \
--cc=pasic@linux.ibm.com \
--cc=pbonzini@redhat.com \
--cc=philmd@linaro.org \
--cc=pmorel@linux.ibm.com \
--cc=qemu-devel@nongnu.org \
--cc=qemu-s390x@nongnu.org \
--cc=richard.henderson@linaro.org \
--cc=wainersm@redhat.com \
--cc=wangyanan55@huawei.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).