From: Sean Christopherson <seanjc@google.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: "Woodhouse, David" <dwmw@amazon.co.uk>,
"usama.arif@bytedance.com" <usama.arif@bytedance.com>,
"arjan@linux.intel.com" <arjan@linux.intel.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
"thomas.lendacky@amd.com" <thomas.lendacky@amd.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"mingo@redhat.com" <mingo@redhat.com>,
"fam.zheng@bytedance.com" <fam.zheng@bytedance.com>,
"pbonzini@redhat.com" <pbonzini@redhat.com>,
"liangma@liangbit.com" <liangma@liangbit.com>,
"pmenzel@molgen.mpg.de" <pmenzel@molgen.mpg.de>,
"mimoja@mimoja.de" <mimoja@mimoja.de>,
"hewenliang4@huawei.com" <hewenliang4@huawei.com>,
"hpa@zytor.com" <hpa@zytor.com>,
"punit.agrawal@bytedance.com" <punit.agrawal@bytedance.com>,
"simon.evans@bytedance.com" <simon.evans@bytedance.com>,
"bp@alien8.de" <bp@alien8.de>,
"paulmck@kernel.org" <paulmck@kernel.org>,
"rcu@vger.kernel.org" <rcu@vger.kernel.org>,
"x86@kernel.org" <x86@kernel.org>
Subject: Re: [PATCH v6 04/11] x86/smpboot: Reference count on smpboot_setup_warm_reset_vector()
Date: Tue, 7 Feb 2023 16:50:37 +0000 [thread overview]
Message-ID: <Y+KBXf+IT2pQdF5A@google.com> (raw)
In-Reply-To: <87sffhv8to.ffs@tglx>
On Tue, Feb 07, 2023, Thomas Gleixner wrote:
> On Tue, Feb 07 2023 at 09:49, David Woodhouse wrote:
> > On Tue, 2023-02-07 at 00:48 +0100, Thomas Gleixner wrote:
> >> Aside of the 'We' this does not explain anything at all.
> >
> > Er, doesn't it?
> >
> > We refcount the warm reset vector because when we do parallel bringup,
> > we'll want to set it up once and then put it back to normal (for cold
> > reset) once all the CPUs are up.
> >
> > I can rework the phrasing; I'm aware that the whole nonsense about
> > pronouns and the imperative mood has grown legs in the last couple of
> > years since I originally wrote it — but is there anything actually
> > missing?
>
> We can settle the imperative mood debate over a beer at the next
> conference, but stuff which goes through tip is required to follow those
> rules. No exception for you :)
While we're reforming David, same goes for KVM x86. :-)
next prev parent reply other threads:[~2023-02-07 16:50 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-02 21:56 [PATCH v6 00/11] Parallel CPU bringup for x86_64 Usama Arif
2023-02-02 21:56 ` [PATCH v6 01/11] x86/apic/x2apic: Fix parallel handling of cluster_mask Usama Arif
2023-02-06 23:20 ` Thomas Gleixner
2023-02-07 10:57 ` David Woodhouse
2023-02-07 11:27 ` David Woodhouse
2023-02-07 14:24 ` Thomas Gleixner
2023-02-07 19:53 ` David Woodhouse
2023-02-07 20:58 ` Thomas Gleixner
2023-02-07 14:22 ` Thomas Gleixner
2023-02-02 21:56 ` [PATCH v6 02/11] cpu/hotplug: Move idle_thread_get() to <linux/smpboot.h> Usama Arif
2023-02-06 23:33 ` Thomas Gleixner
2023-02-07 1:24 ` Paul E. McKenney
2023-02-02 21:56 ` [PATCH v6 03/11] cpu/hotplug: Add dynamic parallel bringup states before CPUHP_BRINGUP_CPU Usama Arif
2023-02-06 23:43 ` Thomas Gleixner
2023-02-02 21:56 ` [PATCH v6 04/11] x86/smpboot: Reference count on smpboot_setup_warm_reset_vector() Usama Arif
2023-02-06 23:48 ` Thomas Gleixner
[not found] ` <57195f701f6d1d70ec440c9a28cbee4cfb81dc41.camel@amazon.co.uk>
2023-02-07 14:39 ` Thomas Gleixner
2023-02-07 16:50 ` Sean Christopherson [this message]
2023-02-07 19:48 ` [EXTERNAL][PATCH " David Woodhouse
2023-02-02 21:56 ` [PATCH v6 05/11] x86/smpboot: Split up native_cpu_up into separate phases and document them Usama Arif
2023-02-06 23:59 ` Thomas Gleixner
2023-02-02 21:56 ` [PATCH v6 06/11] x86/smpboot: Support parallel startup of secondary CPUs Usama Arif
2023-02-02 22:30 ` David Woodhouse
2023-02-02 22:50 ` [External] " Usama Arif
2023-02-03 8:14 ` David Woodhouse
2023-02-03 14:41 ` Arjan van de Ven
2023-02-03 18:17 ` Sean Christopherson
2023-02-07 0:07 ` Thomas Gleixner
2023-02-02 21:56 ` [PATCH v6 07/11] x86/smpboot: Disable parallel boot for AMD CPUs Usama Arif
2023-02-03 19:48 ` Kim Phillips
[not found] ` <d5ec64236ba75f0d3f3718fb69b2cb9169d8af0a.camel@amazon.co.uk>
2023-02-03 21:45 ` Kim Phillips
2023-02-03 22:25 ` [EXTERNAL][PATCH " David Woodhouse
2023-02-04 9:07 ` [PATCH " David Woodhouse
2023-02-04 10:09 ` David Woodhouse
2023-02-04 15:40 ` David Woodhouse
2023-02-04 18:18 ` Arjan van de Ven
2023-02-04 22:31 ` David Woodhouse
2023-02-05 22:13 ` [External] " Usama Arif
2023-02-06 8:05 ` David Woodhouse
2023-02-06 12:11 ` Usama Arif
2023-02-06 18:07 ` Sean Christopherson
2023-02-06 17:58 ` Kim Phillips
2023-02-07 16:27 ` Kim Phillips
2023-02-07 0:23 ` Thomas Gleixner
2023-02-07 10:04 ` David Woodhouse
2023-02-07 14:44 ` Thomas Gleixner
2023-02-07 0:09 ` Thomas Gleixner
[not found] ` <cbd9e88e738dc0c479e87121ca82431731905c73.camel@amazon.co.uk>
2023-02-07 14:46 ` Thomas Gleixner
2023-02-02 21:56 ` [PATCH v6 08/11] x86/smpboot: Send INIT/SIPI/SIPI to secondary CPUs in parallel Usama Arif
2023-02-07 0:28 ` Thomas Gleixner
2023-02-02 21:56 ` [PATCH v6 09/11] x86/mtrr: Avoid repeated save of MTRRs on boot-time CPU bringup Usama Arif
2023-02-02 21:56 ` [PATCH v6 10/11] x86/smpboot: Serialize topology updates for secondary bringup Usama Arif
2023-02-02 21:56 ` [PATCH v6 11/11] x86/smpboot: reuse timer calibration Usama Arif
2023-02-07 0:31 ` Thomas Gleixner
2023-02-07 23:16 ` Arjan van de Ven
2023-02-07 23:55 ` Thomas Gleixner
2023-02-05 19:17 ` [PATCH v6 00/11] Parallel CPU bringup for x86_64 Russ Anderson
2023-02-06 8:28 ` David Woodhouse
2023-02-06 12:18 ` [External] " Usama Arif
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=Y+KBXf+IT2pQdF5A@google.com \
--to=seanjc@google.com \
--cc=arjan@linux.intel.com \
--cc=bp@alien8.de \
--cc=dave.hansen@linux.intel.com \
--cc=dwmw@amazon.co.uk \
--cc=fam.zheng@bytedance.com \
--cc=hewenliang4@huawei.com \
--cc=hpa@zytor.com \
--cc=kvm@vger.kernel.org \
--cc=liangma@liangbit.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mimoja@mimoja.de \
--cc=mingo@redhat.com \
--cc=paulmck@kernel.org \
--cc=pbonzini@redhat.com \
--cc=pmenzel@molgen.mpg.de \
--cc=punit.agrawal@bytedance.com \
--cc=rcu@vger.kernel.org \
--cc=simon.evans@bytedance.com \
--cc=tglx@linutronix.de \
--cc=thomas.lendacky@amd.com \
--cc=usama.arif@bytedance.com \
--cc=x86@kernel.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.