linux-kernel - Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1bdaf70f-7271-4aed-a985-0b455ccafab1@email.android.com>
Date:	Fri, 14 Dec 2012 12:10:27 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	Borislav Petkov <bp@...en8.de>,
	"Yu, Fenghua" <fenghua.yu@...el.com>,
	"mingo@...nel.org" <mingo@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"hpa@...ux.intel.com" <hpa@...ux.intel.com>,
	"linux-tip-commits@...r.kernel.org" 
	<linux-tip-commits@...r.kernel.org>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Stefano Stabellini <Stefano.Stabellini@...citrix.com>
Subject: Re: [tip:x86/microcode] x86/microcode_intel_early.c: Early update ucode on Intel's CPU

What info are you referring to?

Yinghai Lu <yinghai@...nel.org> wrote:

>On Fri, Dec 14, 2012 at 11:46 AM, H. Peter Anvin <hpa@...or.com> wrote:
>>
>> That patch doesn't apply on top of the merge of x86/mm2 and
>> linus/master.  A trivial fixup is totally nonfunctional -- no
>> earlyprintk, just a null pointer death in setup_real_mode().
>
>just saw linus pulled efi fix that is touching real_mode/init.c.
>and there is something wrong with it.
>
>will check that...
>
>>
>> I suspect we don't need init_level4_pgt at all and should just plan
>to
>> get rid of it.  Is there any reason we can't just build the proper
>> kernel page table set in pagetable_init() and switch to it there?
>
>then how to pass the info to AP?

-- 
Sent from my mobile phone. Please excuse brevity and lack of formatting.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/