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

["Zhang, Xiantao" <xiantao.zhang@xxxxxxxxx>]

Great! This patch can fix the two DomU creates issue.

Thanks
-Xiantao

> -----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 11:22
> To: Xu, Anthony; xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
> Subject: RE: [Xen-ia64-devel] [PATCH] XEN: fixed a vcpu_translate bug
> 
> 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

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