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Re: [Xen-devel] [RFC Patch v2 01/16] xen: introduce new hypercall to reset vcpu

At 08/01/2013 07:48 PM, Tim Deegan Wrote:
> Hi,
> At 16:35 +0800 on 11 Jul (1373560533), Wen Congyang wrote:
>> In colo mode, SVM is running, and it will create pagetable, use gdt...
>> When we do a new checkpoint, we may need to rollback all this operations.
>> This new hypercall will do this.
> Can you do what you need with XEN_DOMCTL_setvcpucontext(domid, vcpuid, NULL)?
> If not, maybe some small extensions to that call would be enough?

I will try it.

> I think if we do need an entirely new hypercall, it should be part of
> the DOMCTL call along with the other vcpu operations, rather than having
> a new top-level hypercall of its own.

If setvcpucontext() can't work, I will add a new subop to DOMCTL instead of
a new hypercall.

Wen Congyang

> Cheers,
> Tim.

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