linux-kernel - Re: [PATCH] x86, microcode: Remove unnecessary paravirt

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Date:	Fri, 19 Feb 2016 12:33:46 +0200
From:	Andy Shevchenko <andy.shevchenko@...il.com>
To:	Borislav Petkov <bp@...en8.de>
Cc:	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	"x86@...nel.org" <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	david.vrabel@...rix.com,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	xen-devel@...ts.xenproject.org
Subject: Re: [PATCH] x86, microcode: Remove unnecessary paravirt_enabled check

On Fri, Feb 19, 2016 at 12:18 PM, Borislav Petkov <bp@...en8.de> wrote:
> On Fri, Feb 19, 2016 at 12:06:33PM +0200, Andy Shevchenko wrote:
>> Sorry for being too late, but this commit breaks 32-bit kernel on
>> Intel Medfield. Reverting the only commit from today's linux-next
>> helps.
>
> You mean this commit?!
>
> fbae4ba8c4a3 ("x86, microcode: Reload microcode on resume")
>
> This has been in since 3.19.
>
> Please explain.

No, the commit 84aba677f009 as of today's linux-next on which I commented.

commit 84aba677f009e20185aea322563389ad56e0ef7e
Author: Boris Ostrovsky <boris.ostrovsky@...cle.com>
Date:   Tue Feb 16 09:43:19 2016 +0100

    x86/microcode: Remove unnecessary paravirt_enabled check

One more thing: I run this kernel as a second from kexec. It might be
related as well. For now I have no possibility to run it as a first
kernel.

-- 
With Best Regards,
Andy Shevchenko