Re: [Xen-devel] [PATCH] x86/mm: remove the linear mapping of the p2m tables

[Keir Fraser <keir@xxxxxxx>]

On 13/09/2012 21:43, "Konrad Rzeszutek Wilk" <konrad@xxxxxxxxxx> wrote:

>> Auto-translated PV seems to be one of those unsupported things that never
>> quite dies. With PVH just round the corner, let's definitively call it dead.
>> :)
> 
> I thought we discussed that we need this as backup for running older guests?

Don't think so, since we'll continue to run old guests as pure PV.

There was a backup for running on older CPUs, and that was to allow PVH
guests to run on shadow page tables. That's a totally separate compatibility
concern however.

> BTW, the auto-xlat is what PVH is advertising to the PV guest.

Yes, but it's auto-xlat in an HVM container. Pure PV auto-xlat is what we're
looking to kill here.

 -- Keir

> CC-ing Mukesh here



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