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

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

>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.


>I don't know how to fix that because these values don't come from pal_emul.c.
>I suppose they come from the virtual bios.
>
>Tristan.
>
>
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