linux-kernel - Re: [PATCH v1] random: block in /dev/urandom

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Message-ID: <YjtPNI2ZQFgVML6L@sirena.org.uk>
Date:   Wed, 23 Mar 2022 16:47:48 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Guenter Roeck <linux@...ck-us.net>,
        "Jason A. Donenfeld" <Jason@...c4.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:HARDWARE RANDOM NUMBER GENERATOR CORE" 
        <linux-crypto@...r.kernel.org>,
        linux-arch <linux-arch@...r.kernel.org>,
        Dinh Nguyen <dinguyen@...nel.org>,
        Nick Hu <nickhu@...estech.com>,
        Max Filippov <jcmvbkbc@...il.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        "David S . Miller" <davem@...emloft.net>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Michal Simek <monstr@...str.eu>,
        Borislav Petkov <bp@...en8.de>, Guo Ren <guoren@...nel.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Joshua Kinard <kumba@...too.org>,
        David Laight <David.Laight@...lab.com>,
        Dominik Brodowski <linux@...inikbrodowski.net>,
        Eric Biggers <ebiggers@...gle.com>,
        Ard Biesheuvel <ardb@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Andy Lutomirski <luto@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Lennart Poettering <mzxreary@...inter.de>,
        Konstantin Ryabitsev <konstantin@...uxfoundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Theodore Ts'o <tytso@....edu>
Subject: Re: [PATCH v1] random: block in /dev/urandom

On Wed, Mar 23, 2022 at 05:41:01PM +0100, Arnd Bergmann wrote:
> On Wed, Mar 23, 2022 at 5:18 PM Mark Brown <broonie@...nel.org> wrote:

> > and I'd be surprised if virtio devices made it through with a specific
> > platform emulation.

> In general they do: virtio devices appear as regular PCI devices
> and get probed from there, as long as the drivers are available.

> It looks like the PCI driver does not get initialized here though,
> presumably because it's not enabled in versatile_defconfig.
> It used to also not be enabled in multi_v5_defconfig, but I have
> merged a patch from Anders that enables it in 5.18 for the
> multi_v5_defconfig.

Ah, I thought Versatile was like the other older Arm reference platforms
and didn't have PCI.

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