From: Borislav Petkov <bp@alien8.de>
To: Jia Zhang <qianyue.zj@alibaba-inc.com>
Cc: Ingo Molnar <mingo@kernel.org>,
tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
x86@kernel.org, linux-kernel@vger.kernel.org,
tony.luck@intel.com
Subject: Re: [PATCH v4] x86/microcode/intel: Blacklist the specific BDW-EP for late loading
Date: Fri, 29 Dec 2017 14:44:39 +0100 [thread overview]
Message-ID: <20171229134439.GA19010@nazgul.tnic> (raw)
In-Reply-To: <492a0fe6-ca0b-ca97-27bf-e6407c60469c@alibaba-inc.com>
On Fri, Dec 29, 2017 at 09:17:34PM +0800, Jia Zhang wrote:
> Namely, the end user has to make a BIOS update to uprev the microcode.
Not quite: end user is dependent on the OEM to get a BIOS update.
What is meant with early loading in this context is, to put the
microcode in the initrd so that it gets loaded very early during the
*kernel* boot. And early-initrd-based loading is the default method we
do microcode loading with, anyway.
So the blacklisting is only for *late* loading, through the sysfs
trigger. Which is only there for historical reasons and for some
configurations.
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
--
next prev parent reply other threads:[~2017-12-29 13:44 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-26 12:42 Jia Zhang
2017-12-27 4:52 ` Luck, Tony
2017-12-28 12:24 ` Ingo Molnar
2017-12-28 13:23 ` Jia Zhang
2017-12-29 12:48 ` Ingo Molnar
2017-12-29 13:17 ` Jia Zhang
2017-12-29 13:44 ` Borislav Petkov [this message]
2017-12-29 14:12 ` Jia Zhang
2017-12-29 14:40 ` Borislav Petkov
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