From: Michael Ellerman <michaele@au1.ibm.com>
To: Tyrel Datwyler <tyreld@linux.ibm.com>,
Laurent Dufour <ldufour@linux.ibm.com>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Cc: Nathan Lynch <nathanl@linux.ibm.com>
Subject: Re: [PATCH v5] powerpc/pseries: read the lpar name from the firmware
Date: Wed, 12 Jan 2022 09:40:27 +1100 [thread overview]
Message-ID: <87zgo128x0.fsf@mpe.ellerman.id.au> (raw)
In-Reply-To: <c26f2961-dd19-b888-b601-af5ade74c140@linux.ibm.com>
Tyrel Datwyler <tyreld@linux.ibm.com> writes:
> On 1/6/22 8:13 AM, Laurent Dufour wrote:
>> The LPAR name may be changed after the LPAR has been started in the HMC.
>> In that case lparstat command is not reporting the updated value because it
>> reads it from the device tree which is read at boot time.
>>
>> However this value could be read from RTAS.
>>
>> Adding this value in the /proc/powerpc/lparcfg output allows to read the
>> updated value.
>>
>> However the hypervisor, like Qemu/KVM, may not support this RTAS
>> parameter. In that case the value reported in lparcfg is read from the
>> device tree and so is not updated accordingly.
>>
>> Cc: Nathan Lynch <nathanl@linux.ibm.com>
>> Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
>
> My only nit would be that in general for consistency with other function names
> _RTAS_ and _DT_ should be lowercase. Seeing as they are statically scoped within
> lparcfg.c maybe its ok. Otherwise,
Yeah I agree, I changed them to lower case when applying.
cheers
next prev parent reply other threads:[~2022-01-11 22:40 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-06 16:13 [PATCH v5] powerpc/pseries: read the lpar name from the firmware Laurent Dufour
2022-01-06 21:13 ` Nathan Lynch
2022-01-06 21:38 ` Tyrel Datwyler
2022-01-11 22:40 ` Michael Ellerman [this message]
2022-01-12 13:10 ` Laurent Dufour
2022-01-10 13:33 ` kernel test robot
2022-02-15 5:26 ` Michael Ellerman
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=87zgo128x0.fsf@mpe.ellerman.id.au \
--to=michaele@au1.ibm.com \
--cc=ldufour@linux.ibm.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=nathanl@linux.ibm.com \
--cc=tyreld@linux.ibm.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).