Re: [Xen-devel] [PATCH v3 0/1] Introduce VCPUOP_reset_vcpu_info

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 22.08.14 at 04:27, <konrad.wilk@xxxxxxxxxx> wrote:
> On Thu, Aug 21, 2014 at 12:35:36PM +0200, Vitaly Kuznetsov wrote:
>> Recreating domain and copying all memory should work but we'll require
>> host to have free memory, this can be an issue for large guests. If we
>> try implementing 'reassigning' of memory without making a copy that can
>> lead to same issues we have now: mounted grants, shared info,...
> 
> That is a good point. Especially with 512GB guests. David, Jan, thoughts?

No, the idea was really to re-use the memory rather than copy it.
Why would active grants or the use of shared info be a problem
(and particularly one worse than with the vCPU-info-reset
approach)?

Jan


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