linux-kernel - Re: [PATCH v4] virt: vmgenid: introduce driver for reinitializing RNG on VM fork

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Message-ID: <Yhj5rg2Cgv+qRcjc@zx2c4.com>
Date:   Fri, 25 Feb 2022 16:45:50 +0100
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Alexander Graf <graf@...zon.com>
Cc:     Ard Biesheuvel <ardb@...nel.org>, adrian@...ity.io,
        KVM list <kvm@...r.kernel.org>,
        Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
        linux-hyperv@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        ben@...portsystems.com,
        Daniel P. Berrangé <berrange@...hat.com>,
        Colm MacCarthaigh <colmmacc@...zon.com>,
        Dexuan Cui <decui@...rosoft.com>,
        "Woodhouse, David" <dwmw@...zon.co.uk>,
        Eric Biggers <ebiggers@...nel.org>,
        Eduardo Habkost <ehabkost@...hat.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Igor Mammedov <imammedo@...hat.com>,
        Jann Horn <jannh@...gle.com>,
        KY Srinivasan <kys@...rosoft.com>,
        Laszlo Ersek <lersek@...hat.com>,
        Dominik Brodowski <linux@...inikbrodowski.net>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        QEMU Developers <qemu-devel@...gnu.org>,
        "Weiss, Radu" <raduweis@...zon.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        "Theodore Y. Ts'o" <tytso@....edu>, Wei Liu <wei.liu@...nel.org>
Subject: Re: [PATCH v4] virt: vmgenid: introduce driver for reinitializing
 RNG on VM fork

Hi Alex,

On Fri, Feb 25, 2022 at 04:37:43PM +0100, Alexander Graf wrote:
> I believe "VMGENID" was for the firecracker prototype that Adrian built 
> back then, yeah. Matching on _HID for this is a rat hole unfortunately, 
> so let's see what the ACPI patch gets us :).

Thanks. I'll add a comment to the code about Firecracker. And indeed
hopefully that'll all go away anyway.

Jason