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

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Message-ID: <Yhj3iqBxxzDeFhyd@zx2c4.com>
Date:   Fri, 25 Feb 2022 16:36:42 +0100
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Alexander Graf <graf@...zon.com>
Cc:     Greg KH <gregkh@...uxfoundation.org>, kvm@...r.kernel.org,
        linux-crypto@...r.kernel.org, linux-hyperv@...r.kernel.org,
        linux-kernel@...r.kernel.org, adrian@...ity.io, ardb@...nel.org,
        ben@...portsystems.com, berrange@...hat.com, colmmacc@...zon.com,
        decui@...rosoft.com, dwmw@...zon.co.uk, ebiggers@...nel.org,
        ehabkost@...hat.com, haiyangz@...rosoft.com, imammedo@...hat.com,
        jannh@...gle.com, kys@...rosoft.com, lersek@...hat.com,
        linux@...inikbrodowski.net, mst@...hat.com, qemu-devel@...gnu.org,
        raduweis@...zon.com, sthemmin@...rosoft.com, tytso@....edu,
        wei.liu@...nel.org
Subject: Re: [PATCH v4] virt: vmgenid: introduce driver for reinitializing
 RNG on VM fork

Hi again,

On Fri, Feb 25, 2022 at 04:31:02PM +0100, Alexander Graf wrote:
> >> Please expose the vmgenid via /sysfs so that user space even remotely has a
> >> chance to check if it's been cloned.
> > Export it how?  And why, who would care?
> You can just

As mentioned in <https://lore.kernel.org/lkml/Yhj1nYHXmimPsqFd@zx2c4.com/>,
propose something later for all of this. It doesn't need to happen all
at once *now*.

Thanks,
Jason