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Re: [Xen-devel] trap bounce flags

  • To: Jan Beulich <jbeulich@xxxxxxxxxx>
  • From: Keir Fraser <keir@xxxxxxxxxxxxx>
  • Date: Wed, 25 Apr 2007 11:56:11 +0100
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Wed, 25 Apr 2007 03:55:02 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AceHJlPukmWRSPMZEduM1gAX8io7RQAAgHKE
  • Thread-topic: [Xen-devel] trap bounce flags
On 25/4/07 11:41, "Keir Fraser" <keir@xxxxxxxxxxxxx> wrote:

> Attached is my own proposed patch which I think cleans up all the issues.
> Checking just flags in asm and keeping the null-bounce check in
> init_int80_direct_trap() seems fine to me.

The change of a movw $0 to a movb $TBF_EXCEPTION in that patch is wrong, by
the way. Should be movb $0.

 -- Keir


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