WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

[Xen-devel] Re: [PATCH 0/2] x86/microcode: support for microcode update

To: "H. Peter Anvin" <hpa@xxxxxxxxx>
Subject: [Xen-devel] Re: [PATCH 0/2] x86/microcode: support for microcode update in Xen dom0
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Tue, 01 Feb 2011 14:52:33 -0800
Cc: Xen Devel <Xen-devel@xxxxxxxxxxxxxxxxxxx>, the arch/x86 maintainers <x86@xxxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Ingo Molnar <mingo@xxxxxxx>
Delivery-date: Tue, 01 Feb 2011 14:53:27 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <4D475DB5.1020300@xxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <cover.1296259339.git.jeremy.fitzhardinge@xxxxxxxxxx> <20110130113356.GA27967@xxxxxxxxxxxx> <4D461FB9.5050807@xxxxxxxx> <20110131070241.GA22071@xxxxxxxxxxxx> <4D46FC9F.6090309@xxxxxxxx> <20110131234131.GA16095@xxxxxxxxxxxx> <4D475099.1080004@xxxxxxxx> <4D475DB5.1020300@xxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101209 Fedora/3.1.7-0.35.b3pre.fc14 Lightning/1.0b3pre Thunderbird/3.1.7
On 01/31/2011 05:11 PM, H. Peter Anvin wrote:
> Note: Xen may not have devices, but it is already using multiboot to
> load multiple modules.  It could load the microcode blob that way.
>
> That would enable an earlier loading of microcode, which is a very
> good thing.

Yes, that is a thought, but it would require some distro support to make
sure the firmware is copied into /boot, and grub updated appropriately.

The principle advantage of updating the microcode driver is that it Just
Works regardless of whether the system is booting native or Xen.

    J

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

<Prev in Thread] Current Thread [Next in Thread>