Re: [Xen-devel] [PATCH for-4.5 v6 08/16] xen: Add limited support of VMware's hyper-call rpc

["Slutz, Donald Christopher" <dslutz@xxxxxxxxxxx>]

On 09/23/14 08:34, Ian Campbell wrote:
> On Mon, 2014-09-22 at 17:18 -0400, Don Slutz wrote:
>> On 09/22/14 09:47, Ian Campbell wrote:
>>> On Sat, 2014-09-20 at 14:07 -0400, Don Slutz wrote:
>>>> This interface is an extension of __HYPERVISOR_HVM_op.  It was
>>>> picked because xc_get_hvm_param() also uses it and VMware guest
>>>> info is a lot like a hvm param.
>>> Sorry if this has been discussed before, but did you consider doing all
>>> this in qemu rather than Xen?
>>
>> Yes, but QEMU does not have access to the VCPU registers.  Also QEMU
>> does not have this code; so would also need it to be added.
> I thought you said KVM had this functionality already? If so then the
> bulk of the code should be there already.

QEMU (aka KVM) only has part of #4; it has none of the code for RPC
(I.E. this patch).  So it would all be new code.

>> A second part would be adding a way for a tool stack to
>> communicate with QEMU to access this data.  xenstore/xenbus might
>> be one way to do this.
> qmp would be the more modern way I think.

Ok.

    -Don Slutz

> Ian.
>
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