From: Pavel Machek <pavel@denx.de>
To: Borislav Petkov <bp@alien8.de>
Cc: Pavel Machek <pavel@denx.de>,
Thomas Gleixner <tglx@linutronix.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, stable@vger.kernel.org,
Tom Lendacky <thomas.lendacky@amd.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Andrew Morton <akpm@linux-foundation.org>,
Chen Yu <yu.c.chen@intel.com>, "H. Peter Anvin" <hpa@zytor.com>,
Ingo Molnar <mingo@redhat.com>, Jonathan Corbet <corbet@lwn.net>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Juergen Gross <jgross@suse.com>,
Kees Cook <keescook@chromium.org>,
"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
Nathan Chancellor <natechancellor@gmail.com>,
Paolo Bonzini <pbonzini@redhat.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
"x86@kernel.org" <x86@kernel.org>
Subject: Re: [PATCH 4.19 72/98] x86/CPU/AMD: Clear RDRAND CPUID bit on AMD family 15h/16h
Date: Wed, 28 Aug 2019 15:37:13 +0200 [thread overview]
Message-ID: <20190828133713.GF8052@amd> (raw)
In-Reply-To: <20190828124621.GI4920@zn.tnic>
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On Wed 2019-08-28 14:46:21, Borislav Petkov wrote:
> On Wed, Aug 28, 2019 at 02:29:13PM +0200, Pavel Machek wrote:
> > This is not a way to have an inteligent conversation.
>
> No, this *is* the way to keep the conversation sane, without veering
> off into some absurd claims.
>
> So, to cut to the chase: you can simply add "rdrand=force" to your
> cmdline parameters and get back to using RDRAND.
>
> And yet if you still feel this fix does not meet your expectations,
> you were told already to either produce patches or who to contact. I'm
> afraid complaining on this thread won't get you anywhere but that's your
> call.
No, this does not meet my expectations, it violates stable kernel
rules, and will cause regression to some users, while better solution
is known to be available.
Best regards,
Pavel
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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next prev parent reply other threads:[~2019-08-28 13:37 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190827072718.142728620@linuxfoundation.org>
2019-08-27 7:50 ` [PATCH 4.19 72/98] x86/CPU/AMD: Clear RDRAND CPUID bit on AMD family 15h/16h Greg Kroah-Hartman
2019-08-27 11:36 ` Pavel Machek
2019-08-27 13:30 ` Thomas Gleixner
2019-08-28 10:31 ` Pavel Machek
2019-08-28 10:47 ` Thomas Gleixner
2019-08-28 11:49 ` Pavel Machek
2019-08-28 12:00 ` Borislav Petkov
2019-08-28 12:09 ` Pavel Machek
2019-08-28 12:16 ` Borislav Petkov
2019-08-28 12:29 ` Pavel Machek
2019-08-28 12:46 ` Borislav Petkov
2019-08-28 13:37 ` Pavel Machek [this message]
2019-08-28 14:15 ` Thomas Gleixner
2019-08-28 22:05 ` Pavel Machek
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