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] [Patch] rombios: compute checksum for roms bigger than a seg

To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] [Patch] rombios: compute checksum for roms bigger than a segment
From: Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>
Date: Thu, 04 Jun 2009 09:00:45 +0900
Cc: Glauber Costa <glommer@xxxxxxxxxx>, Sebastian Herbszt <herbszt@xxxxxx>
Delivery-date: Wed, 03 Jun 2009 17:01:19 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
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>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Hi,

If we use gPXE with e1000 driver, the size of the gPXE rom is
bigger than a segment. The current rombios cannot compute the
checksum of such a rom.
I ported the following patch to xen.
http://www.nabble.com/-PATCH--compute-checksum-for-roms-bigger-than-a-segment-td22752831.html

FYI, the below is a BIOS map with gPXE of e1000.
(XEN) HVM5: BIOS map:
(XEN) HVM5:  c0000-c8fff: VGA BIOS
(XEN) HVM5:  c9000-d97ff: Etherboot ROM
(XEN) HVM5:  eb000-eb175: SMBIOS tables
(XEN) HVM5:  f0000-fffff: Main BIOS

From: Glauber Costa <glommer@xxxxxxxxxx>
From: "Sebastian Herbszt" <herbszt@xxxxxx>
Ported by: Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>

Best Regards,

Akio Takebe

Attachment: calc_checksum_for_bigger_roms-glommer-2_xen.diff
Description: Binary data

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
<Prev in Thread] Current Thread [Next in Thread>
  • [Xen-devel] [Patch] rombios: compute checksum for roms bigger than a segment, Akio Takebe <=