linux-kernel - Re: [PATCH 2/2] x86/random: Issue a warning if RDRAND or RDSEED fails

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Message-ID: <CAHmME9rq-_f9C=DMjjYeCXFcMrCooD-AYVZVj2oF8Je7ztGnTw@mail.gmail.com>
Date: Tue, 30 Jan 2024 19:24:29 +0100
From: "Jason A. Donenfeld" <Jason@...c4.com>
To: Daniel P. Berrangé <berrange@...hat.com>
Cc: Dave Hansen <dave.hansen@...el.com>, "Reshetova, Elena" <elena.reshetova@...el.com>, 
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>, Thomas Gleixner <tglx@...utronix.de>, 
	Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, 
	Dave Hansen <dave.hansen@...ux.intel.com>, "H. Peter Anvin" <hpa@...or.com>, 
	"x86@...nel.org" <x86@...nel.org>, "Theodore Ts'o" <tytso@....edu>, 
	Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@...ux.intel.com>, 
	"Nakajima, Jun" <jun.nakajima@...el.com>, Tom Lendacky <thomas.lendacky@....com>, 
	"Kalra, Ashish" <ashish.kalra@....com>, Sean Christopherson <seanjc@...gle.com>, 
	"linux-coco@...ts.linux.dev" <linux-coco@...ts.linux.dev>, 
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] x86/random: Issue a warning if RDRAND or RDSEED fails

On Tue, Jan 30, 2024 at 7:06 PM Daniel P. Berrangé <berrange@...hat.com> wrote:
> So I'm not convinced we can blindly wave away RDRAND failures as
> guaranteed to mean broken hardware.

Indeed, and now I'm further disturbed by the @intel.com people on the
thread making these claims that are demonstratively false.