[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: [Xen-devel] [patch 2/2] Preserve correct PIC vectors across Xenvmxassist 16/32-bit transitions


  • To: "Stephen C. Tweedie" <sct@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Li, Xin B" <xin.b.li@xxxxxxxxx>
  • Date: Thu, 7 Jun 2007 00:33:35 +0800
  • Delivery-date: Wed, 06 Jun 2007 09:32:02 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AceciA/cQldfqgKNTrqF9f27exDVaQLz1Nhg
  • Thread-topic: [Xen-devel] [patch 2/2] Preserve correct PIC vectors across Xenvmxassist 16/32-bit transitions

>This code teaches vmxassist:
>
>1) to remember how the guest has set up the virtual PIC interrupt
>vectors; and
>2) to reprogram the vPIC to point to the true guest vector 
>when entering
>32-bit mode, and to point back to the vmxassist bounce-irq traps when
>reentering 16-bit mode.
>

In Dec 2006, I created a patch to fix this issue, and may be better.
I didn't send it out just because some other critical issue in
VMXassist, hopefully the emulation way will be done soon.
thanks
-Xin 

Attachment: gfxboot_vmxassist_fix.patch
Description: gfxboot_vmxassist_fix.patch

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

 


Rackspace

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