Re: [Xen-ia64-devel] vPAL VTi incorrect values

[Tristan Gingold <Tristan.Gingold@xxxxxxxx>]

Le Vendredi 14 Avril 2006 15:44, Xu, Anthony a écrit :
> From: Tristan Gingold
>
> >Sent: 2006?4?14? 21:37
> >To: xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
> >Subject: [Xen-ia64-devel] vPAL VTi incorrect values
> >
> >Hi,
> >
> >within XenVTi, cat /proc/pal/cpu0/vm_info gives:
> ># cat /proc/pal/cpu0/vm_info
> >Physical Address Space         : 50 bits
> >Virtual Address Space          : 61 bits
> >Protection Key Registers(PKR)  : 16
> >Implemented bits in PKR.key    : 24
> >Hash Tag ID                    : 0x2
> >Size of RR.rid                 : 24
> >Supported memory attributes    : WB, UC, UCE, WC, NaTPage
> >
> >RR.rid and virtual address space are wrong!
> >
> >RR.rid may be a real problem given the previous patch which now check rid.
>
> Good catch!
>
> Some pal emulations are implemented within guest firmware.
> Virtual address space should be implemented within guest firmware,
> Because it's always 60.(there are 61 bits virtual address on Montecito).
> Rid bits should be emulated by VMM.
Un?fortunatly this is the same PAL call ;-)

So I assume Intel will fix that.

Tristan.


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