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From:   "Michael Kelley (LINUX)" <mikelley@microsoft.com>
To:     "bp@alien8.de" <bp@alien8.de>
CC:     KY Srinivasan <kys@microsoft.com>,
        Haiyang Zhang <haiyangz@microsoft.com>,
        Dexuan Cui <decui@microsoft.com>,
        "catalin.marinas@arm.com" <catalin.marinas@arm.com>,
        "will@kernel.org" <will@kernel.org>,
        "tglx@linutronix.de" <tglx@linutronix.de>,
        "mingo@redhat.com" <mingo@redhat.com>,
        "dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
        "hpa@zytor.com" <hpa@zytor.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>,
        Wei Liu <wei.liu@kernel.org>,
        "linux-arm-kernel@lists.infradead.org" 
        <linux-arm-kernel@lists.infradead.org>,
        "x86@kernel.org" <x86@kernel.org>
Subject: RE: [PATCH v2 1/2] x86/hyperv: Fix hyperv_pcpu_input_arg handling
 when CPUs go online/offline
Thread-Topic: [PATCH v2 1/2] x86/hyperv: Fix hyperv_pcpu_input_arg handling
 when CPUs go online/offline
Thread-Index: AQHZjZob2yLFJBtHgUi6CCUhYCqkka9oNBYAgBjdbLA=
Date:   Thu, 8 Jun 2023 14:39:23 +0000
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References: <1684862062-51576-1-git-send-email-mikelley@microsoft.com>
 <ZG0LTAeV+KMAGXIq@liuwe-devbox-debian-v2>
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From: Wei Liu <wei.liu@kernel.org>
>=20
> On Tue, May 23, 2023 at 10:14:21AM -0700, Michael Kelley wrote:
> [...]
> > diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h
> > index 0f1001d..3ceb9df 100644
> > --- a/include/linux/cpuhotplug.h
> > +++ b/include/linux/cpuhotplug.h
> > @@ -200,6 +200,7 @@ enum cpuhp_state {
> >
> >  	/* Online section invoked on the hotplugged CPU from the hotplug thre=
ad */
> >  	CPUHP_AP_ONLINE_IDLE,
> > +	CPUHP_AP_HYPERV_ONLINE,
>=20
> x86 maintainers, are you okay with this?
>=20

Boris -- Are you OK with this, and could give an ACK?  This small patch
set fixes a problem introduced into 6.4-rc1 by other Confidential VM
changes, so this fix needs to be incorporated before 6.4 is released.

Michael

> >  	CPUHP_AP_KVM_ONLINE,
> >  	CPUHP_AP_SCHED_WAIT_EMPTY,
> >  	CPUHP_AP_SMPBOOT_THREADS,
> > --
> > 1.8.3.1
> >