Re: [Xen-devel] Essay on an important Xen decision (long)

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

> Not only possible, but normal.  If there is a TLB miss and
> a VHPT (virtual hashed page table) miss, software fills
> both the TLB and VHPT.
>
> Is that what you meant?

Yep, that's exactly what I thought happened :-)

IIRC, you said you don't bother with the guest VHPT, right?  So presumably you 
reflect TLB misses to the guest and intercept its TLB fill instruction, apply 
the P2M translation, then add it to *Xen*'s VHPT and fill the TLB correctly?

I know I've followed some of these discussions before, just a bit rusty 
now ;-)

Cheers,
Mark

-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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