From: Christoph Egger <Christoph.Egger@amd.com>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Jeremy Fitzhardinge <jeremy@goop.org>,
Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>,
the arch/x86 maintainers <x86@kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Borislav Petkov <bp@amd64.org>,
Xen Devel <xen-devel@lists.xensource.com>,
Tigran Aivazian <tigran@aivazian.fsnet.co.uk>,
Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [Xen-devel] Re: [PATCH 0/3] x86/microcode: support for microcode update in Xen dom0
Date: Tue, 18 Oct 2011 10:56:22 +0200 [thread overview]
Message-ID: <4E9D3F36.6070201@amd.com> (raw)
In-Reply-To: <4E9C6886.20600@zytor.com>
On 10/17/11 19:40, H. Peter Anvin wrote:
> On 10/17/2011 10:08 AM, Konrad Rzeszutek Wilk wrote:
>>
>> <scratches his head>
>> You are still using the microcode API (the existing one) to
>> program the CPUs right? It is just that you are fetching the images
>> much much earlier than it currently is done?
>>
>
> No, the goal is to ditch the existing API and load the CPUs very early
> in the start path.
>
> -hpa
I think this approach is good to get the microcode applied as
early as possible at boot time. But on servers you usually do not want
to reboot the machine unless you do a BIOS update which will apply
the new microcode anyway. So for applying the microcode update
at runtime I would like to keep the existing API.
Christoph
--
---to satisfy European Law for business letters:
Advanced Micro Devices GmbH
Einsteinring 24, 85689 Dornach b. Muenchen
Geschaeftsfuehrer: Alberto Bozzo, Andrew Bowd
Sitz: Dornach, Gemeinde Aschheim, Landkreis Muenchen
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next prev parent reply other threads:[~2011-10-18 8:56 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-26 18:17 [PATCH 0/3] x86/microcode: support for microcode update in Xen dom0 Jeremy Fitzhardinge
2011-09-26 18:18 ` [PATCH 1/3] xen/acpi: Domain0 acpi parser related platform hypercall Jeremy Fitzhardinge
2011-09-26 18:18 ` [PATCH 2/3] xen: add dom0_op hypercall Jeremy Fitzhardinge
2011-09-26 18:18 ` [PATCH 3/3] xen: add CPU microcode update driver Jeremy Fitzhardinge
2011-10-12 0:40 ` [PATCH 0/3] x86/microcode: support for microcode update in Xen dom0 Jeremy Fitzhardinge
2011-10-12 10:16 ` Borislav Petkov
2011-10-12 15:39 ` Jeremy Fitzhardinge
2011-10-12 18:18 ` H. Peter Anvin
2011-10-12 19:18 ` Jeremy Fitzhardinge
2011-10-12 19:45 ` Borislav Petkov
2011-10-12 20:40 ` Konrad Rzeszutek Wilk
2011-10-12 21:31 ` H. Peter Anvin
2011-10-12 21:40 ` Borislav Petkov
2011-10-12 22:49 ` H. Peter Anvin
2011-10-12 23:40 ` Jeremy Fitzhardinge
2011-10-12 23:55 ` H. Peter Anvin
2011-10-13 0:00 ` Jeremy Fitzhardinge
2011-10-13 0:03 ` H. Peter Anvin
2011-10-13 7:00 ` Borislav Petkov
2012-01-04 0:49 ` Sven Köhler
2011-10-13 7:33 ` Borislav Petkov
2011-10-13 9:57 ` Borislav Petkov
2011-10-13 16:44 ` H. Peter Anvin
2011-10-17 17:08 ` [Xen-devel] " Konrad Rzeszutek Wilk
2011-10-17 17:40 ` H. Peter Anvin
2011-10-18 1:11 ` Henrique de Moraes Holschuh
2011-10-18 8:56 ` Christoph Egger [this message]
2011-10-18 9:35 ` Borislav Petkov
2011-10-18 9:49 ` Christoph Egger
[not found] ` <m2n.s.1RGYF2-136675@chiark.greenend.org.uk>
2011-10-25 16:53 ` Ian Jackson
2011-10-12 22:27 ` Jeremy Fitzhardinge
2011-10-12 22:29 ` H. Peter Anvin
2011-10-12 22:33 ` Jeremy Fitzhardinge
2011-10-12 22:34 ` H. Peter Anvin
2011-10-12 22:38 ` Borislav Petkov
2011-10-12 20:22 ` H. Peter Anvin
2011-10-12 22:34 ` Jeremy Fitzhardinge
2011-10-12 22:36 ` H. Peter Anvin
[not found] ` <m2n.s.1RE5NW-151309@chiark.greenend.org.uk>
2011-10-17 13:47 ` [Xen-devel] " Ian Jackson
2011-11-03 15:06 ` Ben Guthro
2011-11-03 16:47 ` [Xen-devel] " Jeremy Fitzhardinge
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