On Wed, Jan 6, 2016 at 12:48 PM, Andrew Cooper <andrew.coop...@citrix.com>
wrote:
> On 06/01/16 11:42, Tamas K Lengyel wrote:
>
>
>
> On Wed, Jan 6, 2016 at 12:32 PM, Jan Beulich <jbeul...@suse.com> wrote:
>
>> >>> On 23.12.15 at 15:53, < <ta...@tklengyel.com>ta...@tklengyel.com>
>> wrote:
>> > @@ -83,6 +84,12 @@ static int hvm_event_traps(uint8_t sync,
>> vm_event_request_t *req)
>> > vm_event_vcpu_pause(curr);
>> > }
>> >
>> > + if ( altp2m_active(currd) )
>> > + {
>> > + req->flags |= VM_EVENT_FLAG_ALTERNATE_P2M;
>> > + req->altp2m_idx = vcpu_altp2m(curr).p2midx;
>> > + }
>>
>> So far this info was provided just for MEM_ACCESS events. Now
>> you provide it for a few more ones, but wouldn't this then better
>> be supplied for all of them, namely also the other two MEM ones?
>>
>
> AFAIK altp2m is currently incompatible with sharing. I'm not 100% sure but
> I think it's also incompatible with paging.
>
>
> I don't think they are strictly incompatible; I don't see a technical
> reason preventing some development work to make them function together.
>
> Whether this happens or not is a very different matter.
>
Sure, the two systems can be made to work in tandem, this work just hasn't
been done yet. I would very much like to get that to work in the future.
Tamas
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