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From:   Jim Mattson <jmattson@google.com>
Date:   Fri, 7 Jan 2022 16:04:49 -0800
Message-ID: <CALMp9eQDzqoJMck=_agEZNU9FJY9LB=iW-8hkrRc20NtqN=gDA@mail.gmail.com>
Subject: Re: [RFC PATCH v3 01/11] KVM: Capture VM start
To:     Raghavendra Rao Ananta <rananta@google.com>
Cc:     Reiji Watanabe <reijiw@google.com>, Marc Zyngier <maz@kernel.org>,
        Andrew Jones <drjones@redhat.com>,
        James Morse <james.morse@arm.com>,
        Alexandru Elisei <alexandru.elisei@arm.com>,
        Suzuki K Poulose <suzuki.poulose@arm.com>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>, Peter Shier <pshier@google.com>,
        Ricardo Koller <ricarkol@google.com>,
        Oliver Upton <oupton@google.com>,
        Jing Zhang <jingzhangos@google.com>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>,
        kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org,
        kvm@vger.kernel.org
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On Fri, Jan 7, 2022 at 3:43 PM Raghavendra Rao Ananta
<rananta@google.com> wrote:
>
> Hi Reiji,
>
> On Thu, Jan 6, 2022 at 10:07 PM Reiji Watanabe <reijiw@google.com> wrote:
> >
> > Hi Raghu,
> >
> > On Tue, Jan 4, 2022 at 11:49 AM Raghavendra Rao Ananta
> > <rananta@google.com> wrote:
> > >
> > > Capture the start of the KVM VM, which is basically the
> > > start of any vCPU run. This state of the VM is helpful
> > > in the upcoming patches to prevent user-space from
> > > configuring certain VM features after the VM has started
> > > running.

What about live migration, where the VM has already technically been
started before the first call to KVM_RUN?