Re: [Xen-devel] pvhvm cpu hotplug not working in xen 4.4

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Thu, 2014-03-06 at 15:16 +0100, Kristoffer Egefelt wrote:
> Is xl vcpu-set supposed to work with pvhvm in xen 4.4?
> 
> Iâm trying with xen 4.4 rc-6 from git, getting libxl: error:
> libxl_qmp.c:287:qmp_handle_error_response: received an error message
> from QMP server: Not supported
> 
> Is some specific version of qemu needed?

Are you using the version tagged/shipped with 4.4-rc6 or one of your own
devising? ISTR Anthony fixing this not so long ago -- which would
suggest a fairly recent qemu was needed -- Anthony???

Ian

> 
> Full output:
> 
> $ xl list
> Name                                        ID   Mem VCPUs    State   Time(s)
> pvhvm-template-vm101                175  7744     4     -bââ       9.9
> 
> $ xl vcpu-set 175 5
> libxl: debug: libxl_qmp.c:696:libxl__qmp_initialize: connected to 
> /var/run/xen/qmp-libxl-175
> libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type: qmp
> libxl: debug: libxl_qmp.c:546:qmp_send_prepare: next qmp command: '{
>     "execute": "qmp_capabilities",
>     "id": 1
> }
> '
> libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type: return
> libxl: debug: libxl_qmp.c:546:qmp_send_prepare: next qmp command: '{
>     "execute": "cpu-add",
>     "id": 2,
>     "arguments": {
>         "id": 0
>     }
> }
> '
> libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type: error
> libxl: error: libxl_qmp.c:287:qmp_handle_error_response: received an error 
> message from QMP server: Not supported
> libxl: debug: libxl_qmp.c:696:libxl__qmp_initialize: connected to 
> /var/run/xen/qmp-libxl-175
> libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type: qmp
> libxl: debug: libxl_qmp.c:546:qmp_send_prepare: next qmp command: '{
>     "execute": "qmp_capabilities",
>     "id": 1
> }
> '
> libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type: return
> libxl: debug: libxl_qmp.c:546:qmp_send_prepare: next qmp command: '{
>     "execute": "cpu-add",
>     "id": 2,
>     "arguments": {
>         "id": 1
>     }
> }
> '
> libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type: error
> libxl: error: libxl_qmp.c:287:qmp_handle_error_response: received an error 
> message from QMP server: Not supported
> libxl: debug: libxl_qmp.c:696:libxl__qmp_initialize: connected to 
> /var/run/xen/qmp-libxl-175
> libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type: qmp
> libxl: debug: libxl_qmp.c:546:qmp_send_prepare: next qmp command: '{
>     "execute": "qmp_capabilities",
>     "id": 1
> }
> '
> libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type: return
> libxl: debug: libxl_qmp.c:546:qmp_send_prepare: next qmp command: '{
>     "execute": "cpu-add",
>     "id": 2,
>     "arguments": {
>         "id": 2
>     }
> }
> '
> libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type: error
> libxl: error: libxl_qmp.c:287:qmp_handle_error_response: received an error 
> message from QMP server: Not supported
> libxl: debug: libxl_qmp.c:696:libxl__qmp_initialize: connected to 
> /var/run/xen/qmp-libxl-175
> libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type: qmp
> libxl: debug: libxl_qmp.c:546:qmp_send_prepare: next qmp command: '{
>     "execute": "qmp_capabilities",
>     "id": 1
> }
> '
> libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type: return
> libxl: debug: libxl_qmp.c:546:qmp_send_prepare: next qmp command: '{
>     "execute": "cpu-add",
>     "id": 2,
>     "arguments": {
>         "id": 3
>     }
> }
> '
> libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type: error
> libxl: error: libxl_qmp.c:287:qmp_handle_error_response: received an error 
> message from QMP server: Not supported
> libxl: debug: libxl_qmp.c:696:libxl__qmp_initialize: connected to 
> /var/run/xen/qmp-libxl-175
> libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type: qmp
> libxl: debug: libxl_qmp.c:546:qmp_send_prepare: next qmp command: '{
>     "execute": "qmp_capabilities",
>     "id": 1
> }
> '
> libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type: return
> libxl: debug: libxl_qmp.c:546:qmp_send_prepare: next qmp command: '{
>     "execute": "cpu-add",
>     "id": 2,
>     "arguments": {
>         "id": 4
>     }
> }
> '
> libxl: debug: libxl_qmp.c:296:qmp_handle_response: message type: error
> libxl: error: libxl_qmp.c:287:qmp_handle_error_response: received an error 
> message from QMP server: Not supported
> xc: debug: hypercall buffer: total allocations:9 total releases:9
> xc: debug: hypercall buffer: current allocations:0 maximum allocations:2
> xc: debug: hypercall buffer: cache current size:2
> xc: debug: hypercall buffer: cache hits:7 misses:2 toobig:0
> 
> 
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