Received-SPF: pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
MIME-Version: 1.0
References: <Yh4+9+UpanJWAIyZ@zx2c4.com> <Yh5fbe71BTT6xc8h@kroah.com>
 <CAHmME9oGcp7HNLeieptMKztgg7Fq4MnOuAEsiFJxsLbmjSuFCw@mail.gmail.com> <Yh528WPZrQn5s7vO@kroah.com>
In-Reply-To: <Yh528WPZrQn5s7vO@kroah.com>
From:   "Jason A. Donenfeld" <Jason@zx2c4.com>
Date:   Wed, 2 Mar 2022 00:12:00 +0100
Message-ID: <CAHmME9oxEWK6Nvra9eZBZnHKGNnWyeEzvE8d4HGy3NRPkajrvA@mail.gmail.com>
Subject: Re: propagating vmgenid outward and upward
To:     Greg KH <gregkh@linuxfoundation.org>
Cc:     LKML <linux-kernel@vger.kernel.org>,
        KVM list <kvm@vger.kernel.org>,
        QEMU Developers <qemu-devel@nongnu.org>,
        linux-hyperv@vger.kernel.org,
        Linux Crypto Mailing List <linux-crypto@vger.kernel.org>,
        Alexander Graf <graf@amazon.com>,
        "Michael Kelley (LINUX)" <mikelley@microsoft.com>,
        adrian@parity.io, Laszlo Ersek <lersek@redhat.com>,
        =?UTF-8?Q?Daniel_P=2E_Berrang=C3=A9?= <berrange@redhat.com>,
        Dominik Brodowski <linux@dominikbrodowski.net>,
        Jann Horn <jannh@google.com>,
        "Michael S. Tsirkin" <mst@redhat.com>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        "Brown, Len" <len.brown@intel.com>, Pavel Machek <pavel@ucw.cz>,
        Linux PM <linux-pm@vger.kernel.org>,
        Colm MacCarthaigh <colmmacc@amazon.com>,
        "Theodore Ts'o" <tytso@mit.edu>, Arnd Bergmann <arnd@arndb.de>
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

On Tue, Mar 1, 2022 at 8:41 PM Greg KH <gregkh@linuxfoundation.org> wrote:
>
> On Tue, Mar 01, 2022 at 07:24:11PM +0100, Jason A. Donenfeld wrote:
> > Hi Greg,
> >
> > On Tue, Mar 1, 2022 at 7:01 PM Greg KH <gregkh@linuxfoundation.org> wrote:
> > > A notifier block like this makes sense, but why tie onto the PM_ stuff?
> > > This isn't power management issues, it's a system-wide change that I am
> > > sure others will want to know about that doesn't reflect any power
> > > changes.
> > >
> > > As much as I hate adding new notifiers in the kernel, that might be all
> > > you need here.
> >
> > You might indeed be right. I guess I was thinking that "resuming from
> > suspend" and "resuming from a VM fork" are kind of the same thing.
> > There _is_ a certain kind of similarity between the two. I was hoping
> > if the similarity was a strong enough one, maybe it'd make sense to do
> > them together rather than adding another notifier. But I suppose you
> > disagree, and it sounds like Rafael might too --
> > <https://lore.kernel.org/lkml/CAJZ5v0g+GihH_b9YvwuHzdrUVNGXOeabOznDC1vK6qLi8gtSTQ@mail.gmail.com/>.
>
> Hey, nice, we agree!  :)

It is now done and posted here:
https://lore.kernel.org/lkml/20220301231038.530897-1-Jason@zx2c4.com/

Jason