Re: [Xen-devel] sources of freebsd with xen-4.2 kernel updates

[Igor Kozhukhov <ikozhukhov@xxxxxxxxx>]

On Dec 30, 2013, at 3:25 PM, Roger Pau Monné wrote:

> On 30/12/13 11:57, Igor Kozhukhov wrote:
>> Hi Roger,
>> 
>> thanks for the link.
>> I have the same/(similar the same) implementation on illumos(OpenSolaris).
>> 
>> do you have plans for grant table v1 & v2 implementation on FreeBSD ?
> 
> Grant table v1 is the current implementation, and I don't have plans
> currently to add support for v2 (cannot speak of others though).
> 
> Linux has v2 implemented, but AFAIK there's no user of the new features
> introduced by v2. Right now with v2 you just end up with less grants,
> because v2 grants metadata use twice as much memory as v1 grants, and
> the number of grant frames is limited by the hypervisor.
> 
Thanks for your info.

Could you please let me know - can we use v1 for PV and HVM guests ?
I looked v2 implementation on Linux and found that v1 is using for HVM, and v2 
for PV - but maybe i'm wrong.

-Igor

> Roger.
> 


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