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RE: [Xen-ia64-devel] [PATCH] access_reflection fix


  • To: "Xu, Anthony" <anthony.xu@xxxxxxxxx>, "xen-ia64-devel" <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Magenheimer, Dan (HP Labs Fort Collins)" <dan.magenheimer@xxxxxx>
  • Date: Wed, 29 Mar 2006 10:45:17 -0800
  • Delivery-date: Wed, 29 Mar 2006 18:46:40 +0000
  • List-id: Discussion of the ia64 port of Xen <xen-ia64-devel.lists.xensource.com>
  • Thread-index: AcZTT7lX/rwT2iDaRI2kEAyIgbwjUQAEOsXA
  • Thread-topic: [Xen-ia64-devel] [PATCH] access_reflection fix

I am reading from an old SDM so this may have changed,
but I think the low two bits of cr.itir are NOT reserved,
so it is not necessary to write zero to them.

See SDM Vol2 3.3.5.5 

> -----Original Message-----
> From: xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf 
> Of Xu, Anthony
> Sent: Wednesday, March 29, 2006 9:42 AM
> To: xen-ia64-devel
> Subject: [Xen-ia64-devel] [PATCH] access_reflection fix
> 
> Before injecting fault to guest, VMM need to setup
> guest itir by using guest region register.
> But the lowest two bits of itir are reserved. VMM need
> to reset these two bits.
> 
> Signed-off-by: Anthony Xu <anthony.xu@xxxxxxxxx>
> 
> Thanks,
> -Anthony 
> 
> 

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