[Top] [All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] trampoline code in hvmloader

  • To: Jun Koi <junkoi2004@xxxxxxxxx>, "List: Xen Developers" <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
  • Date: Fri, 07 Mar 2008 13:20:32 +0000
  • Delivery-date: Fri, 07 Mar 2008 05:21:41 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AciAVgUHQ2SfkuxJEdyI9wAX8io7RQ==
  • Thread-topic: [Xen-devel] trampoline code in hvmloader
On 7/3/08 09:11, "Jun Koi" <junkoi2004@xxxxxxxxx> wrote:

> I have a questions about the asm code at the top of hvmloader.c: This
> code overwrite the lower part of memory with the trampoline code.
> Doing that, it overwrites some interrupt vectors there. Why we dont
> care about that?

There are no interrupt vectors there at that time. The rombios initialises
the IDT and enables interrupt delivery.

 -- Keir



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

 

©2013 Xen Project, A Linux Foundation Collaborative Project. All Rights Reserved.
Linux Foundation is a registered trademark of The Linux Foundation.
Xen Project is a trademark of The Linux Foundation.

Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.