RE: [Xen-ia64-devel] [PATCH] XEN: fixed a vcpu_translate bug

["Xu, Anthony" <anthony.xu@xxxxxxxxx>]

Please desert the old one and use this new one

Thanks,
-Anthony 

>-----Original Message-----
>From: xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx
>[mailto:xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Xu, Anthony
>Sent: 2006年3月17日 10:17
>To: xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
>Subject: [Xen-ia64-devel] [PATCH] XEN: fixed a vcpu_translate bug
>
>There are some below code segments in guest OS
>1.     Rsm psr.dt
>               ...
>2.             itc.d r18
>               ...
>3.             rfi
>
>After executing instruction 1, domain is in metaphysical mode.
>When executing instruction 2, VMM gets control to emulate this
>instruction. Firstly VMM will try to get opcode, which may
>trigger a tlb miss. At this time domain is in metaphysical mode
>and the fault address is in region 5. vcpu_translate handles this
>as normal guest metaphysical mode.
>
>It's not correct; sometimes this will make dom0 hang.
>
>cpu_translate should handle this situation as if
>guest is not in metaphysical mode.
>
>
>
>Signed-off-by: Anthony Xu <anthony.xu@xxxxxxxxx>
>
>Thanks,
>-Anthony

Attachment: vcpu_translate.patch
Description: vcpu_translate.patch

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