Signed-off-by: juergen.gross@xxxxxxxxxxxxxx
--
Juergen Gross Principal Developer Operating Systems
TSP ES&S SWE OS6 Telephone: +49 (0) 89 636 47950
Fujitsu Technolgy Solutions e-mail: juergen.gross@xxxxxxxxxxxxxx
Otto-Hahn-Ring 6 Internet: ts.fujitsu.com
D-81739 Muenchen Company details: ts.fujitsu.com/imprint.html
diff -r 655dc3bc1d8e tools/python/xen/lowlevel/xc/xc.c
--- a/tools/python/xen/lowlevel/xc/xc.c Thu Apr 16 11:54:06 2009 +0100
+++ b/tools/python/xen/lowlevel/xc/xc.c Thu Apr 09 10:34:53 2009 +0200
@@ -96,17 +96,18 @@ static PyObject *pyxc_domain_create(XcOb
PyObject *args,
PyObject *kwds)
{
- uint32_t dom = 0, ssidref = 0, flags = 0, target = 0;
+ uint32_t dom = 0, ssidref = 0, flags = 0, target = 0, cpupool = 0;
int ret, i;
PyObject *pyhandle = NULL;
xen_domain_handle_t handle = {
0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef,
0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef };
- static char *kwd_list[] = { "domid", "ssidref", "handle", "flags",
"target", NULL };
-
- if ( !PyArg_ParseTupleAndKeywords(args, kwds, "|iiOii", kwd_list,
- &dom, &ssidref, &pyhandle, &flags,
&target))
+ static char *kwd_list[] = { "domid", "ssidref", "handle", "flags",
"target", "cpupool", NULL };
+
+ if ( !PyArg_ParseTupleAndKeywords(args, kwds, "|iiOiii", kwd_list, &dom,
+ &ssidref, &pyhandle, &flags, &target,
+ &cpupool))
return NULL;
if ( pyhandle != NULL )
{
@@ -123,8 +124,9 @@ static PyObject *pyxc_domain_create(XcOb
}
}
+ flags |= XEN_DOMCTL_CDF_pool;
if ( (ret = xc_domain_create(self->xc_handle, ssidref,
- handle, flags, &dom)) < 0 )
+ handle, flags, &dom, cpupool)) < 0 )
return pyxc_error_to_exception();
if ( target )
@@ -315,7 +317,7 @@ static PyObject *pyxc_domain_getinfo(XcO
{
info_dict = Py_BuildValue(
"{s:i,s:i,s:i,s:i,s:i,s:i,s:i,s:i,s:i,s:i"
- ",s:L,s:L,s:L,s:i,s:i}",
+ ",s:L,s:L,s:L,s:i,s:i,s:i}",
"domid", (int)info[i].domid,
"online_vcpus", info[i].nr_online_vcpus,
"max_vcpu_id", info[i].max_vcpu_id,
@@ -330,7 +332,8 @@ static PyObject *pyxc_domain_getinfo(XcO
"cpu_time", (long long)info[i].cpu_time,
"maxmem_kb", (long long)info[i].max_memkb,
"ssidref", (int)info[i].ssidref,
- "shutdown_reason", info[i].shutdown_reason);
+ "shutdown_reason", info[i].shutdown_reason,
+ "cpupool", (int)info[i].cpupool);
pyhandle = PyList_New(sizeof(xen_domain_handle_t));
if ( (pyhandle == NULL) || (info_dict == NULL) )
{
@@ -1503,6 +1506,175 @@ static PyObject *dom_op(XcObject *self,
Py_INCREF(zero);
return zero;
+}
+
+static PyObject *cpumap_to_cpulist(uint64_t cpumap)
+{
+ PyObject *cpulist = NULL;
+ uint32_t i;
+
+ cpulist = PyList_New(0);
+ for ( i = 0; cpumap != 0; i++ )
+ {
+ if ( cpumap & 1 )
+ PyList_Append(cpulist, PyInt_FromLong(i));
+ cpumap >>= 1;
+ }
+ return cpulist;
+}
+
+static PyObject *pyxc_cpupool_create(XcObject *self,
+ PyObject *args,
+ PyObject *kwds)
+{
+ uint32_t cpupool = 0, sched = XEN_SCHEDULER_CREDIT;
+
+ static char *kwd_list[] = { "pool", "sched", NULL };
+
+ if ( !PyArg_ParseTupleAndKeywords(args, kwds, "|ii", kwd_list, &cpupool,
+ &sched))
+ return NULL;
+
+ if ( xc_cpupool_create(self->xc_handle, &cpupool, sched) < 0 )
+ return pyxc_error_to_exception();
+
+ return PyInt_FromLong(cpupool);
+}
+
+static PyObject *pyxc_cpupool_destroy(XcObject *self,
+ PyObject *args)
+{
+ uint32_t cpupool;
+
+ if (!PyArg_ParseTuple(args, "i", &cpupool))
+ return NULL;
+
+ if (xc_cpupool_destroy(self->xc_handle, cpupool) != 0)
+ return pyxc_error_to_exception();
+
+ Py_INCREF(zero);
+ return zero;
+}
+
+static PyObject *pyxc_cpupool_getinfo(XcObject *self,
+ PyObject *args,
+ PyObject *kwds)
+{
+ PyObject *list, *info_dict;
+
+ uint32_t first_pool = 0;
+ int max_pools = 1024, nr_pools, i;
+ xc_cpupoolinfo_t *info;
+
+ static char *kwd_list[] = { "first_pool", "max_pools", NULL };
+
+ if ( !PyArg_ParseTupleAndKeywords(args, kwds, "|ii", kwd_list,
+ &first_pool, &max_pools) )
+ return NULL;
+
+ info = calloc(max_pools, sizeof(xc_cpupoolinfo_t));
+ if (info == NULL)
+ return PyErr_NoMemory();
+
+ nr_pools = xc_cpupool_getinfo(self->xc_handle, first_pool, max_pools,
info);
+
+ if (nr_pools < 0)
+ {
+ free(info);
+ return pyxc_error_to_exception();
+ }
+
+ list = PyList_New(nr_pools);
+ for ( i = 0 ; i < nr_pools; i++ )
+ {
+ info_dict = Py_BuildValue(
+ "{s:i,s:i,s:i,s:N}",
+ "cpupool", (int)info[i].cpupool_id,
+ "sched", info[i].sched_id,
+ "n_dom", info[i].n_dom,
+ "cpulist", cpumap_to_cpulist(info[i].cpumap));
+ if ( info_dict == NULL )
+ {
+ Py_DECREF(list);
+ if ( info_dict != NULL ) { Py_DECREF(info_dict); }
+ free(info);
+ return NULL;
+ }
+ PyList_SetItem(list, i, info_dict);
+ }
+
+ free(info);
+
+ return list;
+}
+
+static PyObject *pyxc_cpupool_addcpu(XcObject *self,
+ PyObject *args,
+ PyObject *kwds)
+{
+ uint32_t cpupool;
+ int cpu = -1;
+
+ static char *kwd_list[] = { "cpupool", "cpu", NULL };
+
+ if ( !PyArg_ParseTupleAndKeywords(args, kwds, "i|i", kwd_list,
+ &cpupool, &cpu) )
+ return NULL;
+
+ if (xc_cpupool_addcpu(self->xc_handle, cpupool, cpu) != 0)
+ return pyxc_error_to_exception();
+
+ Py_INCREF(zero);
+ return zero;
+}
+
+static PyObject *pyxc_cpupool_removecpu(XcObject *self,
+ PyObject *args,
+ PyObject *kwds)
+{
+ uint32_t cpupool;
+ int cpu = -1;
+
+ static char *kwd_list[] = { "cpupool", "cpu", NULL };
+
+ if ( !PyArg_ParseTupleAndKeywords(args, kwds, "i|i", kwd_list,
+ &cpupool, &cpu) )
+ return NULL;
+
+ if (xc_cpupool_removecpu(self->xc_handle, cpupool, cpu) != 0)
+ return pyxc_error_to_exception();
+
+ Py_INCREF(zero);
+ return zero;
+}
+
+static PyObject *pyxc_cpupool_movedomain(XcObject *self,
+ PyObject *args,
+ PyObject *kwds)
+{
+ uint32_t cpupool, domid;
+
+ static char *kwd_list[] = { "cpupool", "domid", NULL };
+
+ if ( !PyArg_ParseTupleAndKeywords(args, kwds, "ii|", kwd_list,
+ &cpupool, &domid) )
+ return NULL;
+
+ if (xc_cpupool_movedomain(self->xc_handle, cpupool, domid) != 0)
+ return pyxc_error_to_exception();
+
+ Py_INCREF(zero);
+ return zero;
+}
+
+static PyObject *pyxc_cpupool_freeinfo(XcObject *self)
+{
+ uint64_t cpumap;
+
+ if (xc_cpupool_freeinfo(self->xc_handle, &cpumap) != 0)
+ return pyxc_error_to_exception();
+
+ return cpumap_to_cpulist(cpumap);
}
static PyMethodDef pyxc_methods[] = {
@@ -1619,7 +1791,8 @@ static PyMethodDef pyxc_methods[] = {
" maxmem_kb [int]: Maximum memory limit, in kilobytes\n"
" cpu_time [long]: CPU time consumed, in nanoseconds\n"
" shutdown_reason [int]: Numeric code from guest OS, explaining "
- "reason why it shut itself down.\n" },
+ "reason why it shut itself down.\n"
+ " cpupool [int] Id of cpupool domain is bound to.\n" },
{ "vcpu_getinfo",
(PyCFunction)pyxc_vcpu_getinfo,
@@ -1963,6 +2136,66 @@ static PyMethodDef pyxc_methods[] = {
"Do not propagate spurious page faults to this guest.\n"
" dom [int]: Identifier of domain.\n" },
#endif
+
+ { "cpupool_create",
+ (PyCFunction)pyxc_cpupool_create,
+ METH_VARARGS | METH_KEYWORDS, "\n"
+ "Create new cpupool.\n"
+ " pool [int, 0]: cpupool identifier to use (allocated if zero).\n"
+ " sched [int]: scheduler to use (credit if unspecified).\n\n"
+ "Returns: [int] new cpupool identifier; -1 on error.\n" },
+
+ { "cpupool_destroy",
+ (PyCFunction)pyxc_cpupool_destroy,
+ METH_VARARGS, "\n"
+ "Destroy a cpupool.\n"
+ " pool [int]: Identifier of cpupool to be destroyed.\n\n"
+ "Returns: [int] 0 on success; -1 on error.\n" },
+
+ { "cpupool_getinfo",
+ (PyCFunction)pyxc_cpupool_getinfo,
+ METH_VARARGS | METH_KEYWORDS, "\n"
+ "Get information regarding a set of cpupools, in increasing id order.\n"
+ " first_pool [int, 0]: First cpupool to retrieve info about.\n"
+ " max_pools [int, 1024]: Maximum number of cpupools to retrieve info"
+ " about.\n\n"
+ "Returns: [list of dicts] if list length is less than 'max_pools'\n"
+ " parameter then there was an error, or the end of the\n"
+ " cpupool-id space was reached.\n"
+ " pool [int]: Identifier of cpupool to which this info pertains\n"
+ " sched [int]: Scheduler used for this cpupool\n"
+ " n_dom [int]: Number of Domains in this cpupool\n"
+ " cpulist [list]: List of CPUs this cpupool is using\n" },
+
+ { "cpupool_addcpu",
+ (PyCFunction)pyxc_cpupool_addcpu,
+ METH_VARARGS | METH_KEYWORDS, "\n"
+ "Add a cpu to a cpupool.\n"
+ " pool [int]: Identifier of cpupool.\n"
+ " cpu [int, -1]: Cpu to add (lowest free if -1)\n\n"
+ "Returns: [int] 0 on success; -1 on error.\n" },
+
+ { "cpupool_removecpu",
+ (PyCFunction)pyxc_cpupool_removecpu,
+ METH_VARARGS | METH_KEYWORDS, "\n"
+ "Remove a cpu from a cpupool.\n"
+ " pool [int]: Identifier of cpupool.\n"
+ " cpu [int, -1]: Cpu to remove (highest used if -1)\n\n"
+ "Returns: [int] 0 on success; -1 on error.\n" },
+
+ { "cpupool_movedomain",
+ (PyCFunction)pyxc_cpupool_movedomain,
+ METH_VARARGS | METH_KEYWORDS, "\n"
+ "Move a domain to another cpupool.\n"
+ " pool [int]: Identifier of cpupool to move doain to.\n"
+ " dom [int]: Domain to move\n\n"
+ "Returns: [int] 0 on success; -1 on error.\n" },
+
+ { "cpupool_freeinfo",
+ (PyCFunction)pyxc_cpupool_freeinfo,
+ METH_NOARGS, "\n"
+ "Get info about cpus not in any cpupool.\n"
+ "Returns: [list]: List of CPUs\n" },
{ NULL, NULL, 0, NULL }
};
diff -r 655dc3bc1d8e tools/python/xen/xend/XendAPI.py
--- a/tools/python/xen/xend/XendAPI.py Thu Apr 16 11:54:06 2009 +0100
+++ b/tools/python/xen/xend/XendAPI.py Thu Apr 09 10:42:59 2009 +0200
@@ -46,6 +46,7 @@ from XendPSCSI import XendPSCSI
from XendPSCSI import XendPSCSI
from XendDSCSI import XendDSCSI
from XendXSPolicy import XendXSPolicy, XendACMPolicy
+from xen.xend.XendCPUPool import XendCPUPool
from XendAPIConstants import *
from xen.util.xmlrpclib2 import stringify
@@ -485,7 +486,8 @@ classes = {
'PPCI' : valid_object("PPCI"),
'DPCI' : valid_object("DPCI"),
'PSCSI' : valid_object("PSCSI"),
- 'DSCSI' : valid_object("DSCSI")
+ 'DSCSI' : valid_object("DSCSI"),
+ 'cpu_pool' : valid_object("cpu_pool"),
}
autoplug_classes = {
@@ -500,6 +502,7 @@ autoplug_classes = {
'DSCSI' : XendDSCSI,
'XSPolicy' : XendXSPolicy,
'ACMPolicy' : XendACMPolicy,
+ 'cpu_pool' : XendCPUPool,
}
class XendAPI(object):
@@ -899,7 +902,8 @@ class XendAPI(object):
'API_version_minor',
'API_version_vendor',
'API_version_vendor_implementation',
- 'enabled']
+ 'enabled',
+ 'resident_cpu_pools']
host_attr_rw = ['name_label',
'name_description',
@@ -987,6 +991,8 @@ class XendAPI(object):
return xen_api_todo()
def host_get_logging(self, _, host_ref):
return xen_api_todo()
+ def host_get_resident_cpu_pools(self, _, host_ref):
+ return xen_api_success(XendCPUPool.get_all())
# object methods
def host_disable(self, session, host_ref):
@@ -1048,7 +1054,9 @@ class XendAPI(object):
'PIFs': XendPIF.get_all(),
'PBDs': XendPBD.get_all(),
'PPCIs': XendPPCI.get_all(),
- 'PSCSIs': XendPSCSI.get_all()}
+ 'PSCSIs': XendPSCSI.get_all(),
+ 'resident_cpu_pools': XendCPUPool.get_all(),
+ }
return xen_api_success(record)
# class methods
@@ -1077,7 +1085,10 @@ class XendAPI(object):
'stepping',
'flags',
'utilisation',
- 'features']
+ 'features',
+ 'cpu_pool']
+
+ host_cpu_funcs = [('get_unassigned_cpus', 'Set(host_cpu)')]
# attributes
def _host_cpu_get(self, ref, field):
@@ -1102,21 +1113,28 @@ class XendAPI(object):
return self._host_cpu_get(ref, 'flags')
def host_cpu_get_utilisation(self, _, ref):
return xen_api_success(XendNode.instance().get_host_cpu_load(ref))
+ def host_cpu_get_cpu_pool(self, _, ref):
+ return xen_api_success(XendCPUPool.get_cpu_pool_by_cpu_ref(ref))
# object methods
def host_cpu_get_record(self, _, ref):
node = XendNode.instance()
record = dict([(f, node.get_host_cpu_field(ref, f))
for f in self.host_cpu_attr_ro
- if f not in ['uuid', 'host', 'utilisation']])
+ if f not in ['uuid', 'host', 'utilisation',
'cpu_pool']])
record['uuid'] = ref
record['host'] = node.uuid
record['utilisation'] = node.get_host_cpu_load(ref)
+ record['cpu_pool'] = XendCPUPool.get_cpu_pool_by_cpu_ref(ref)
return xen_api_success(record)
# class methods
def host_cpu_get_all(self, session):
return xen_api_success(XendNode.instance().get_host_cpu_refs())
+ def host_cpu_get_unassigned_cpus(self, session):
+ return xen_api_success(
+ [ref for ref in XendNode.instance().get_host_cpu_refs()
+ if len(XendCPUPool.get_cpu_pool_by_cpu_ref(ref)) == 0])
# Xen API: Class host_metrics
@@ -1175,6 +1193,7 @@ class XendAPI(object):
'is_control_domain',
'metrics',
'crash_dumps',
+ 'cpu_pool',
]
VM_attr_rw = ['name_label',
@@ -1203,7 +1222,9 @@ class XendAPI(object):
'platform',
'PCI_bus',
'other_config',
- 'security_label']
+ 'security_label',
+ 'pool_name',
+ ]
VM_methods = [('clone', 'VM'),
('start', None),
@@ -1231,7 +1252,9 @@ class XendAPI(object):
('set_memory_dynamic_min_live', None),
('send_trigger', None),
('migrate', None),
- ('destroy', None)]
+ ('destroy', None),
+ ('cpu_pool_migrate', None),
+ ]
VM_funcs = [('create', 'VM'),
('restore', None),
@@ -1426,6 +1449,17 @@ class XendAPI(object):
xd = XendDomain.instance()
return xen_api_success(
xd.get_vm_by_uuid(vm_ref) == xd.privilegedDomain())
+
+ def VM_get_cpu_pool(self, session, vm_ref):
+ dom = XendDomain.instance().get_vm_by_uuid(vm_ref)
+ pool_ref = XendCPUPool.query_pool_ref(dom.get_cpu_pool())
+ return xen_api_success(pool_ref)
+
+ def VM_get_pool_name(self, session, vm_ref):
+ return self.VM_get('cpu_pool_name', session, vm_ref)
+
+ def VM_set_pool_name(self, session, vm_ref, value):
+ return self.VM_set('pool_name', session, vm_ref, value)
def VM_set_name_label(self, session, vm_ref, label):
dom = XendDomain.instance().get_vm_by_uuid(vm_ref)
@@ -1722,7 +1756,9 @@ class XendAPI(object):
'is_control_domain': xeninfo.info['is_control_domain'],
'metrics': xeninfo.get_metrics(),
'security_label': xeninfo.get_security_label(),
- 'crash_dumps': []
+ 'crash_dumps': [],
+ 'pool_name': xeninfo.info.get('pool_name'),
+ 'cpu_pool' : XendCPUPool.query_pool_ref(xeninfo.get_cpu_pool()),
}
return xen_api_success(record)
@@ -1817,6 +1853,25 @@ class XendAPI(object):
def VM_restore(self, _, src, paused):
xendom = XendDomain.instance()
xendom.domain_restore(src, bool(paused))
+ return xen_api_success_void()
+
+ def VM_cpu_pool_migrate(self, session, vm_ref, cpu_pool_ref):
+ xendom = XendDomain.instance()
+ xeninfo = xendom.get_vm_by_uuid(vm_ref)
+ domid = xeninfo.getDomid()
+ pool = XendAPIStore.get(cpu_pool_ref, XendCPUPool.getClass())
+ if pool == None:
+ return xen_api_error(['HANDLE_INVALID', 'cpu_pool', cpu_pool_ref])
+ if domid is not None:
+ if domid == 0:
+ return xen_api_error(['OPERATION_NOT_ALLOWED',
+ 'could not move Domain-0'])
+ try:
+ XendCPUPool.move_domain(cpu_pool_ref, domid)
+ except Exception, ex:
+ return xen_api_error(['INTERNAL_ERROR',
+ 'could not move domain'])
+ self.VM_set('pool_name', session, vm_ref, pool.get_name_label())
return xen_api_success_void()
diff -r 655dc3bc1d8e tools/python/xen/xend/XendConfig.py
--- a/tools/python/xen/xend/XendConfig.py Thu Apr 16 11:54:06 2009 +0100
+++ b/tools/python/xen/xend/XendConfig.py Fri Apr 17 06:57:52 2009 +0200
@@ -123,6 +123,7 @@ XENAPI_CFG_TO_LEGACY_CFG = {
'actions_after_crash': 'on_crash',
'PV_bootloader': 'bootloader',
'PV_bootloader_args': 'bootloader_args',
+ 'pool_name' : 'pool_name',
}
LEGACY_CFG_TO_XENAPI_CFG = reverse_dict(XENAPI_CFG_TO_LEGACY_CFG)
@@ -220,6 +221,7 @@ XENAPI_CFG_TYPES = {
'machine_address_size': int,
'suppress_spurious_page_faults': bool0,
's3_integrity' : int,
+ 'pool_name' : str,
}
# List of legacy configuration keys that have no equivalent in the
@@ -265,6 +267,7 @@ LEGACY_CFG_TYPES = {
'rtc/timeoffset': str,
'bootloader': str,
'bootloader_args': str,
+ 'pool_name': str,
}
# Values that should be stored in xenstore's /vm/<uuid> that is used
@@ -287,6 +290,7 @@ LEGACY_XENSTORE_VM_PARAMS = [
'on_xend_stop',
'bootloader',
'bootloader_args',
+ 'pool_name',
]
##
@@ -392,6 +396,7 @@ class XendConfig(dict):
'other_config': {},
'platform': {},
'target': 0,
+ 'pool_name' : 'Pool-0',
}
return defaults
diff -r 655dc3bc1d8e tools/python/xen/xend/XendConstants.py
--- a/tools/python/xen/xend/XendConstants.py Thu Apr 16 11:54:06 2009 +0100
+++ b/tools/python/xen/xend/XendConstants.py Thu Apr 09 10:45:43 2009 +0200
@@ -136,6 +136,7 @@ VTPM_DELETE_SCRIPT = '/etc/xen/scripts/v
#
XS_VMROOT = "/vm/"
+XS_POOLROOT = "/local/pool/"
NR_PCI_DEV = 32
AUTO_PHP_SLOT = NR_PCI_DEV
diff -r 655dc3bc1d8e tools/python/xen/xend/XendDomainInfo.py
--- a/tools/python/xen/xend/XendDomainInfo.py Thu Apr 16 11:54:06 2009 +0100
+++ b/tools/python/xen/xend/XendDomainInfo.py Fri Apr 17 07:40:55 2009 +0200
@@ -52,6 +52,7 @@ from xen.xend.xenstore.xswatch import xs
from xen.xend.xenstore.xswatch import xswatch
from xen.xend.XendConstants import *
from xen.xend.XendAPIConstants import *
+from xen.xend.XendCPUPool import XendCPUPool
from xen.xend.server.DevConstants import xenbusState
from xen.xend.XendVMMetrics import XendVMMetrics
@@ -2306,6 +2307,19 @@ class XendDomainInfo:
"supported by your CPU and enabled in your "
"BIOS?")
+ # look-up pool id to use
+ pool_name = self.info['pool_name']
+ if len(pool_name) == 0:
+ pool_name = "Pool-0"
+
+ pool = XendCPUPool.lookup_pool(pool_name)
+
+ if pool is None:
+ raise VmError("unkown pool %s" % pool_name)
+ pool_id = pool.query_pool_id()
+ if pool_id is None:
+ raise VmError("pool %s not activated" % pool_name)
+
# Hack to pre-reserve some memory for initial domain creation.
# There is an implicit memory overhead for any domain creation. This
# overhead is greater for some types of domain than others. For
@@ -2331,7 +2345,9 @@ class XendDomainInfo:
ssidref = ssidref,
handle = uuid.fromString(self.info['uuid']),
flags = flags,
- target = self.info.target())
+ target = self.info.target(),
+ cpupool = pool_id,
+ )
except Exception, e:
# may get here if due to ACM the operation is not permitted
if security.on() == xsconstants.XS_POLICY_ACM:
@@ -3226,6 +3242,13 @@ class XendDomainInfo:
retval = xc.sched_credit_domain_get(self.getDomid())
return retval
+
+ def get_cpu_pool(self):
+ if self.getDomid() is None:
+ return None
+ xeninfo = dom_get(self.domid)
+ return xeninfo['cpupool']
+
def get_power_state(self):
return XEN_API_VM_POWER_STATE[self._stateGet()]
def get_platform(self):
diff -r 655dc3bc1d8e tools/python/xen/xend/XendError.py
--- a/tools/python/xen/xend/XendError.py Thu Apr 16 11:54:06 2009 +0100
+++ b/tools/python/xen/xend/XendError.py Thu Apr 09 10:49:39 2009 +0200
@@ -18,6 +18,7 @@
from xmlrpclib import Fault
+import types
import XendClient
class XendInvalidDomain(Fault):
@@ -186,6 +187,26 @@ class DirectPCIError(XendAPIError):
def __str__(self):
return 'DIRECT_PCI_ERROR: %s' % self.error
+class PoolError(XendAPIError):
+ def __init__(self, error, spec=None):
+ XendAPIError.__init__(self)
+ self.spec = []
+ if spec:
+ if isinstance(spec, types.ListType):
+ self.spec = spec
+ else:
+ self.spec = [spec]
+ self.error = error
+
+ def get_api_error(self):
+ return [self.error] + self.spec
+
+ def __str__(self):
+ if self.spec:
+ return '%s: %s' % (self.error, self.spec)
+ else:
+ return '%s' % self.error
+
from xen.util.xsconstants import xserr2string
class SecurityError(XendAPIError):
diff -r 655dc3bc1d8e tools/python/xen/xend/XendNode.py
--- a/tools/python/xen/xend/XendNode.py Thu Apr 16 11:54:06 2009 +0100
+++ b/tools/python/xen/xend/XendNode.py Thu Apr 09 10:54:11 2009 +0200
@@ -41,6 +41,7 @@ from XendMonitor import XendMonitor
from XendMonitor import XendMonitor
from XendPPCI import XendPPCI
from XendPSCSI import XendPSCSI
+from xen.xend.XendCPUPool import XendCPUPool
class XendNode:
"""XendNode - Represents a Domain 0 Host."""
@@ -314,6 +315,16 @@ class XendNode:
uuid.createString())
XendPSCSI(pscsi_uuid, pscsi_record)
+ # Initialise cpu_pools
+ saved_cpu_pools = self.state_store.load_state(XendCPUPool.getClass())
+ if saved_cpu_pools:
+ for cpu_pool_uuid, cpu_pool in saved_cpu_pools.items():
+ try:
+ XendCPUPool.recreate(cpu_pool, cpu_pool_uuid)
+ except CreateUnspecifiedAttributeError:
+ log.warn("Error recreating %s %s",
+ (XendCPUPool.getClass(), cpu_pool_uuid))
+ XendCPUPool.recreate_active_pools()
def add_network(self, interface):
# TODO
@@ -486,6 +497,7 @@ class XendNode:
self.save_SRs()
self.save_PPCIs()
self.save_PSCSIs()
+ self.save_cpu_pools()
def save_PIFs(self):
pif_records = dict([(pif_uuid, XendAPIStore.get(
@@ -521,6 +533,12 @@ class XendNode:
pscsi_uuid, "PSCSI").get_record())
for pscsi_uuid in XendPSCSI.get_all()])
self.state_store.save_state('pscsi', pscsi_records)
+
+ def save_cpu_pools(self):
+ cpu_pool_records = dict([(cpu_pool_uuid, XendAPIStore.get(
+ cpu_pool_uuid, XendCPUPool.getClass()).get_record())
+ for cpu_pool_uuid in XendCPUPool.get_all_managed()])
+ self.state_store.save_state(XendCPUPool.getClass(), cpu_pool_records)
def shutdown(self):
return 0
@@ -814,6 +832,7 @@ class XendNode:
info['free_memory'] = info['free_memory'] / 1024
info['node_to_cpu'] = self.format_node_to_cpu(info)
info['node_to_memory'] = self.format_node_to_memory(info)
+ info['free_cpus'] = len(XendCPUPool.unbound_cpus())
ITEM_ORDER = ['nr_cpus',
'nr_nodes',
@@ -822,6 +841,7 @@ class XendNode:
'cpu_mhz',
'hw_caps',
'virt_caps',
+ 'free_cpus',
'total_memory',
'free_memory',
'node_to_cpu',
diff -r 655dc3bc1d8e tools/python/xen/xend/server/SrvServer.py
--- a/tools/python/xen/xend/server/SrvServer.py Thu Apr 16 11:54:06 2009 +0100
+++ b/tools/python/xen/xend/server/SrvServer.py Thu Apr 09 10:54:40 2009 +0200
@@ -52,6 +52,7 @@ from xen.xend.XendLogging import log
from xen.xend.XendLogging import log
from xen.xend.XendClient import XEN_API_SOCKET
from xen.xend.XendDomain import instance as xenddomain
+from xen.xend.XendCPUPool import XendCPUPool
from xen.web.SrvDir import SrvDir
from SrvRoot import SrvRoot
@@ -146,6 +147,12 @@ class XendServers:
status.close()
status = None
+ # auto start pools before domains are started
+ try:
+ XendCPUPool.autostart_pools()
+ except Exception, e:
+ log.exception("Failed while autostarting pools")
+
# Reaching this point means we can auto start domains
try:
xenddomain().autostart_domains()
diff -r 655dc3bc1d8e tools/python/xen/xend/server/XMLRPCServer.py
--- a/tools/python/xen/xend/server/XMLRPCServer.py Thu Apr 16 11:54:06
2009 +0100
+++ b/tools/python/xen/xend/server/XMLRPCServer.py Thu Apr 09 10:57:04
2009 +0200
@@ -33,6 +33,7 @@ from xen.xend.XendConstants import DOM_S
from xen.xend.XendConstants import DOM_STATE_RUNNING
from xen.xend.XendLogging import log
from xen.xend.XendError import XendInvalidDomain
+from xen.xend.XendCPUPool import XendCPUPool
# vcpu_avail is a long and is not needed by the clients. It's far easier
# to just remove it then to try and marshal the long.
@@ -97,6 +98,10 @@ methods = ['device_create', 'device_conf
'getRestartCount', 'getBlockDeviceClass']
exclude = ['domain_create', 'domain_restore']
+
+POOL_FUNCS = ['pool_create', 'pool_new', 'pool_start', 'pool_list',
+ 'pool_destroy', 'pool_delete', 'pool_cpu_add', 'pool_cpu_remove',
+ 'pool_migrate']
class XMLRPCServer:
def __init__(self, auth, use_xenapi, use_tcp = False,
@@ -197,6 +202,11 @@ class XMLRPCServer:
if name not in exclude:
self.server.register_function(fn, "xend.domain.%s" %
name[7:])
+ # Functions in XendPool
+ for name in POOL_FUNCS:
+ fn = getattr(XendCPUPool, name)
+ self.server.register_function(fn, "xend.cpu_pool.%s" % name[5:])
+
# Functions in XendNode and XendDmesg
for type, lst, n in [(XendNode, ['info', 'pciinfo', 'send_debug_keys'],
'node'),
diff -r 655dc3bc1d8e tools/python/xen/xm/create.dtd
--- a/tools/python/xen/xm/create.dtd Thu Apr 16 11:54:06 2009 +0100
+++ b/tools/python/xen/xm/create.dtd Thu Apr 09 10:58:32 2009 +0200
@@ -50,6 +50,7 @@
s3_integrity CDATA #REQUIRED
vcpus_max CDATA #REQUIRED
vcpus_at_startup CDATA #REQUIRED
+ pool_name CDATA #REQUIRED
actions_after_shutdown %NORMAL_EXIT; #REQUIRED
actions_after_reboot %NORMAL_EXIT; #REQUIRED
actions_after_crash %CRASH_BEHAVIOUR; #REQUIRED
diff -r 655dc3bc1d8e tools/python/xen/xm/create.py
--- a/tools/python/xen/xm/create.py Thu Apr 16 11:54:06 2009 +0100
+++ b/tools/python/xen/xm/create.py Thu Apr 09 11:00:11 2009 +0200
@@ -604,6 +604,10 @@ gopts.var('suppress_spurious_page_faults
gopts.var('suppress_spurious_page_faults', val='yes|no',
fn=set_bool, default=None,
use="""Do not inject spurious page faults into this guest""")
+
+gopts.var('pool', val='POOL NAME',
+ fn=set_value, default=None,
+ use="""CPU pool to use for the VM""")
gopts.var('pci_msitranslate', val='TRANSLATE',
fn=set_int, default=1,
@@ -976,6 +980,8 @@ def make_config(vals):
config.append(['backend', ['tpmif']])
if vals.localtime:
config.append(['localtime', vals.localtime])
+ if vals.pool:
+ config.append(['pool_name', vals.pool])
config_image = configure_image(vals)
if vals.bootloader:
diff -r 655dc3bc1d8e tools/python/xen/xm/main.py
--- a/tools/python/xen/xm/main.py Thu Apr 16 11:54:06 2009 +0100
+++ b/tools/python/xen/xm/main.py Wed Apr 15 11:39:13 2009 +0200
@@ -55,6 +55,7 @@ import xen.util.xsm.xsm as security
import xen.util.xsm.xsm as security
from xen.util.xsm.xsm import XSMError
from xen.util.acmpolicy import ACM_LABEL_UNLABELED_DISPLAY
+from xen.util.sxputils import sxp2map, map2sxp as map_to_sxp
import XenAPI
@@ -219,6 +220,23 @@ SUBCOMMAND_HELP = {
'labels' : ('[policy] [type=dom|res|any]',
'List <type> labels for (active) policy.'),
'serve' : ('', 'Proxy Xend XMLRPC over stdio.'),
+
+ #
+ # pool commands
+ #
+ 'pool-create' : ('<ConfigFile> [vars]',
+ 'Create a CPU pool based an ConfigFile.'),
+ 'pool-new' : ('<ConfigFile> [vars]',
+ 'Adds a CPU pool to Xend CPU pool management'),
+ 'pool-start' : ('<CPU Pool>', 'Starts a Xend CPU pool'),
+ 'pool-list' : ('[<CPU Pool>] [-l|--long] [-c|--cpus]', 'List CPU
pools on host'),
+ 'pool-destroy' : ('<CPU Pool>', 'Deactivates a CPU pool'),
+ 'pool-delete' : ('<CPU Pool>',
+ 'Removes a CPU pool from Xend management'),
+ 'pool-cpu-add' : ('<CPU Pool> <CPU nr>', 'Adds a CPU to a CPU pool'),
+ 'pool-cpu-remove': ('<CPU Pool> <CPU nr>', 'Removes a CPU from a CPU
pool'),
+ 'pool-migrate' : ('<Domain> <CPU Pool>',
+ 'Moves a domain into a CPU pool'),
}
SUBCOMMAND_OPTIONS = {
@@ -242,6 +260,7 @@ SUBCOMMAND_OPTIONS = {
('-l', '--long', 'Output all VM details in SXP'),
('', '--label', 'Include security labels'),
('', '--state=<state>', 'Select only VMs with the specified state'),
+ ('', '--pool=<pool>', 'Select only VMs in specified cpu pool'),
),
'console': (
('-q', '--quiet', 'Do not print an error message if the domain does not
exist'),
@@ -282,6 +301,10 @@ SUBCOMMAND_OPTIONS = {
'info': (
('-c', '--config', 'List Xend configuration parameters'),
),
+ 'pool-list': (
+ ('-l', '--long', 'Output all CPU pool details in SXP format'),
+ ('-c', '--cpus', 'Output list of CPUs used by a pool'),
+ ),
}
common_commands = [
@@ -396,9 +419,21 @@ acm_commands = [
"getpolicy",
]
+pool_commands = [
+ "pool-create",
+ "pool-new",
+ "pool-start",
+ "pool-list",
+ "pool-destroy",
+ "pool-delete",
+ "pool-cpu-add",
+ "pool-cpu-remove",
+ "pool-migrate",
+ ]
+
all_commands = (domain_commands + host_commands + scheduler_commands +
device_commands + vnet_commands + acm_commands +
- ['shell', 'event-monitor'])
+ ['shell', 'event-monitor'] + pool_commands)
##
@@ -791,7 +826,7 @@ def datetime_to_secs(v):
v = str(v).replace(c, "")
return time.mktime(time.strptime(v[0:14], '%Y%m%dT%H%M%S'))
-def getDomains(domain_names, state, full = 0):
+def getDomains(domain_names, state, full = 0, pool = None):
if serverType == SERVER_XEN_API:
doms_sxp = []
doms_dict = []
@@ -800,6 +835,9 @@ def getDomains(domain_names, state, full
dom_metrics_recs = server.xenapi.VM_metrics.get_all_records()
for dom_ref, dom_rec in dom_recs.items():
+ if pool and pool != dom_rec['pool_name']:
+ continue
+
dom_metrics_rec = dom_metrics_recs[dom_rec['metrics']]
states = ('running', 'blocked', 'paused', 'shutdown',
@@ -840,7 +878,15 @@ def getDomains(domain_names, state, full
if domain_names:
return [server.xend.domain(dom, full) for dom in domain_names]
else:
- return server.xend.domains_with_state(True, state, full)
+ doms = server.xend.domains_with_state(True, state, full)
+ if not pool:
+ return doms
+ else:
+ doms_in_pool = []
+ for dom in doms:
+ if sxp.child_value(dom, 'pool_name', '') == pool:
+ doms_in_pool.append(dom)
+ return doms_in_pool
def xm_list(args):
@@ -848,10 +894,11 @@ def xm_list(args):
show_vcpus = 0
show_labels = 0
state = 'all'
+ pool = None
try:
(options, params) = getopt.gnu_getopt(args, 'lv',
['long','vcpus','label',
- 'state='])
+ 'state=','pool='])
except getopt.GetoptError, opterr:
err(opterr)
usage('list')
@@ -865,10 +912,16 @@ def xm_list(args):
show_labels = 1
if k in ['--state']:
state = v
+ if k in ['--pool']:
+ pool = v
if state != 'all' and len(params) > 0:
raise OptionError(
"You may specify either a state or a particular VM, but not both")
+
+ if pool and len(params) > 0:
+ raise OptionError(
+ "You may specify either a pool or a particular VM, but not both")
if show_vcpus:
print >>sys.stderr, (
@@ -876,7 +929,7 @@ def xm_list(args):
xm_vcpu_list(params)
return
- doms = getDomains(params, state, use_long)
+ doms = getDomains(params, state, use_long, pool)
if use_long:
map(PrettyPrint.prettyprint, doms)
@@ -1704,7 +1757,14 @@ def xm_info(args):
return host_cpu_records[0].get("features", "")
else:
return ""
-
+
+ def getFreeCpuCount():
+ cnt = 0
+ for host_cpu_record in host_cpu_records:
+ if len(host_cpu_record.get("cpu_pool", [])) == 0:
+ cnt += 1
+ return cnt
+
info = {
"host": getVal(["name_label"]),
"release": getVal(["software_version", "release"]),
@@ -1716,6 +1776,7 @@ def xm_info(args):
"threads_per_core": getVal(["cpu_configuration",
"threads_per_core"]),
"cpu_mhz": getCpuMhz(),
"hw_caps": getCpuFeatures(),
+ "free_cpus": getFreeCpuCount(),
"total_memory":
int(host_metrics_record["memory_total"])/1024/1024,
"free_memory":
int(host_metrics_record["memory_free"])/1024/1024,
"xen_major": getVal(["software_version", "xen_major"]),
@@ -2829,7 +2890,170 @@ def xm_network_show(args):
print format2 % r
-
+def get_pool_ref(name):
+ refs = server.xenapi.cpu_pool.get_by_name_label(name)
+ if len(refs) > 0:
+ return refs[0]
+ else:
+ err('unkown pool name')
+ sys.exit(1)
+
+def xm_pool_start(args):
+ arg_check(args, "pool-start", 1)
+ if serverType == SERVER_XEN_API:
+ ref = get_pool_ref(args[0])
+ server.xenapi.cpu_pool.activate(ref)
+ else:
+ server.xend.cpu_pool.start(args[0])
+
+def brief_pool_list(sxprs):
+ format_str = "%-16s %3s %8s %s %s"
+ for sxpr in sxprs:
+ if sxpr == sxprs[0]:
+ print "Name CPUs Sched Active Domain count"
+ record = sxp2map(sxpr)
+ name = record['name_label']
+ sched_policy = record['sched_policy']
+ if record['activated']:
+ cpus = record.get('host_CPU_numbers', [])
+ vms = record.get('started_VM_names', [])
+ if not isinstance(cpus, types.ListType):
+ cpus = [cpus]
+ if not isinstance(vms, types.ListType):
+ vms = [vms]
+ cpu_count = len(cpus)
+ vm_count = len(vms)
+ active = 'y'
+ else:
+ cpu_count = record['ncpu']
+ vm_count = 0
+ active = 'n'
+ print format_str % (name, cpu_count, sched_policy, active, vm_count)
+
+def brief_pool_list_cpus(sxprs):
+ format_str = "%-16s %s"
+ for sxpr in sxprs:
+ if sxpr == sxprs[0]:
+ print format_str % ("Name", "CPU list")
+ record = sxp2map(sxpr)
+ name = record['name_label']
+ cpus = ""
+ if record['activated']:
+ cpus = record.get('host_CPU_numbers', [])
+ if isinstance(cpus, types.ListType):
+ cpus.sort()
+ cpus = reduce(lambda x,y: x + "%s," % y, cpus, "")
+ cpus = cpus[0:len(cpus)-1]
+ else:
+ cpus = str(cpus)
+ if len(cpus) == 0:
+ cpus = "-"
+ print format_str % (name, cpus)
+
+def xm_pool_list(args):
+ arg_check(args, "pool-list", 0, 2)
+ try:
+ (options, params) = getopt.gnu_getopt(args, 'lc', ['long','cpus'])
+ except getopt.GetoptError, opterr:
+ err(opterr)
+ usage('pool-list')
+ if len(params) > 1:
+ err("Only one pool name for selection allowed")
+ usage('pool-list')
+
+ use_long = False
+ show_cpus = False
+ for (k, _) in options:
+ if k in ['-l', '--long']:
+ use_long = True
+ if k in ['-c', '--cpus']:
+ show_cpus = True
+
+ if serverType == SERVER_XEN_API:
+ pools = server.xenapi.cpu_pool.get_all_records()
+ cpu_recs = server.xenapi.host_cpu.get_all_records()
+ sxprs = []
+ for pool in pools.values():
+ if pool['name_label'] in params or len(params) == 0:
+ started_VM_names = [['started_VM_names'] + [
+ server.xenapi.VM.get_name_label(started_VM)
+ for started_VM in pool['started_VMs'] ] ]
+ host_CPU_numbers = [['host_CPU_numbers'] + [
+ cpu_recs[cpu_ref]['number']
+ for cpu_ref in pool['host_CPUs'] ] ]
+ sxpr = [ pool['uuid'] ] + map_to_sxp(pool) + \
+ host_CPU_numbers + started_VM_names
+ sxprs.append(sxpr)
+ else:
+ sxprs = server.xend.cpu_pool.list(params)
+
+ if len(params) > 0 and len(sxprs) == 0:
+ # pool not found
+ err("Pool '%s' does not exist." % params[0])
+
+ if use_long:
+ for sxpr in sxprs:
+ PrettyPrint.prettyprint(sxpr)
+ elif show_cpus:
+ brief_pool_list_cpus(sxprs)
+ else:
+ brief_pool_list(sxprs)
+
+def xm_pool_destroy(args):
+ arg_check(args, "pool-destroy", 1)
+ if serverType == SERVER_XEN_API:
+ ref = get_pool_ref(args[0])
+ server.xenapi.cpu_pool.deactivate(ref)
+ else:
+ server.xend.cpu_pool.destroy(args[0])
+
+def xm_pool_delete(args):
+ arg_check(args, "pool-delete", 1)
+ if serverType == SERVER_XEN_API:
+ ref = get_pool_ref(args[0])
+ server.xenapi.cpu_pool.destroy(ref)
+ else:
+ server.xend.cpu_pool.delete(args[0])
+
+def xm_pool_cpu_add(args):
+ arg_check(args, "pool-cpu-add", 2)
+ if serverType == SERVER_XEN_API:
+ ref = get_pool_ref(args[0])
+ cpu_ref_list = server.xenapi.host_cpu.get_all_records()
+ cpu_ref = [ c_rec['uuid'] for c_rec in cpu_ref_list.values()
+ if c_rec['number'] == args[1] ]
+ if len(cpu_ref) == 0:
+ err('cpu number unkown')
+ else:
+ server.xenapi.cpu_pool.add_host_CPU_live(ref, cpu_ref[0])
+ else:
+ server.xend.cpu_pool.cpu_add(args[0], args[1])
+
+def xm_pool_cpu_remove(args):
+ arg_check(args, "pool-cpu-remove", 2)
+ if serverType == SERVER_XEN_API:
+ ref = get_pool_ref(args[0])
+ cpu_ref_list = server.xenapi.host_cpu.get_all_records()
+ cpu_ref = [ c_rec['uuid'] for c_rec in cpu_ref_list.values()
+ if c_rec['number'] == args[1] ]
+ if len(cpu_ref) == 0:
+ err('cpu number unkown')
+ else:
+ server.xenapi.cpu_pool.remove_host_CPU_live(ref, cpu_ref[0])
+ else:
+ server.xend.cpu_pool.cpu_remove(args[0], args[1])
+
+def xm_pool_migrate(args):
+ arg_check(args, "pool-migrate", 2)
+ domname = args[0]
+ poolname = args[1]
+ if serverType == SERVER_XEN_API:
+ pool_ref = get_pool_ref(poolname)
+ server.xenapi.VM.cpu_pool_migrate(get_single_vm(domname), pool_ref)
+ else:
+ server.xend.cpu_pool.migrate(domname, poolname)
+
+
commands = {
"shell": xm_shell,
"event-monitor": xm_event_monitor,
@@ -2904,6 +3128,14 @@ commands = {
"scsi-attach": xm_scsi_attach,
"scsi-detach": xm_scsi_detach,
"scsi-list": xm_scsi_list,
+ # pool
+ "pool-start": xm_pool_start,
+ "pool-list": xm_pool_list,
+ "pool-destroy": xm_pool_destroy,
+ "pool-delete": xm_pool_delete,
+ "pool-cpu-add": xm_pool_cpu_add,
+ "pool-cpu-remove": xm_pool_cpu_remove,
+ "pool-migrate": xm_pool_migrate,
}
## The commands supported by a separate argument parser in xend.xm.
@@ -2921,6 +3153,8 @@ IMPORTED_COMMANDS = [
'getpolicy',
'setpolicy',
'resetpolicy',
+ 'pool-create',
+ 'pool-new',
]
for c in IMPORTED_COMMANDS:
diff -r 655dc3bc1d8e tools/python/xen/xm/xenapi_create.py
--- a/tools/python/xen/xm/xenapi_create.py Thu Apr 16 11:54:06 2009 +0100
+++ b/tools/python/xen/xm/xenapi_create.py Thu Apr 09 11:14:43 2009 +0200
@@ -310,7 +310,9 @@ class xenapi_create:
"HVM_boot_params":
{},
"PCI_bus":
- ""
+ "",
+ "pool_name":
+ vm.attributes["pool_name"].value,
}
if vm.attributes.has_key("security_label"):
@@ -654,6 +656,8 @@ class sxp2xml:
= str(get_child_by_name(config, "vcpus", 1))
vm.attributes["s3_integrity"] \
= str(get_child_by_name(config, "s3_integrity", 0))
+ vm.attributes["pool_name"] \
+ = str(get_child_by_name(config, "pool_name", "Pool-0"))
sec_data = get_child_by_name(config, "security")
if sec_data:
diff -r 655dc3bc1d8e tools/python/xen/util/sxputils.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/python/xen/util/sxputils.py Fri Apr 17 10:51:15 2009 +0200
@@ -0,0 +1,64 @@
+#============================================================================
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of version 2.1 of the GNU Lesser General Public
+# License as published by the Free Software Foundation.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#============================================================================
+# Copyright (c) 2009 Fujitsu Technology Solutions
+#============================================================================
+
+""" convert sxp to map / map to sxp.
+"""
+
+import types
+from xen.xend import sxp
+
+def map2sxp(map_val):
+ """ conversion of all key-value pairs of a map (recursively) to sxp.
+ @param map_val: map; if a value contains a list or dict it is also
+ converted to sxp
+ @type map_val: dict
+ @return sxp expr
+ @rtype: list
+ """
+ sxp_vals = []
+ for (k, v) in map_val.items():
+ if isinstance(v, types.DictionaryType):
+ sxp_vals += [[k] + map2sxp(v)]
+ elif isinstance(v, types.ListType):
+ sxp_vals += [[k] + v]
+ else:
+ sxp_vals += [[k, v]]
+ return sxp_vals
+
+def sxp2map( s ):
+ """ conversion of sxp to map.
+ @param s: sxp expr
+ @type s: list
+ @return: map
+ @rtype: dict
+ """
+ sxphash = {}
+
+ for child in sxp.children( s ):
+ if isinstance( child, types.ListType ) and len( child ) > 1:
+ if isinstance( child[1], types.ListType ) and len( child[1] ) > 1:
+ sxphash[ child[0] ] = sxp2map( child )
+ else:
+ childs = sxp.children(child)
+ if len(childs) > 1:
+ sxphash[ child[0] ] = childs
+ else:
+ sxphash[ child[0] ] = childs[0]
+
+ return sxphash
+
+
diff -r 655dc3bc1d8e tools/python/xen/xend/XendCPUPool.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/python/xen/xend/XendCPUPool.py Fri Apr 17 10:51:38 2009 +0200
@@ -0,0 +1,872 @@
+#============================================================================
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of version 2.1 of the GNU Lesser General Public
+# License as published by the Free Software Foundation.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#============================================================================
+# Copyright (c) 2009 Fujitsu Technology Solutions.
+#============================================================================
+
+""" CPU Pool support including XEN-API and Legacy API.
+"""
+
+import types
+import threading
+import re
+import xen.lowlevel.xc
+import XendNode
+import XendDomain
+from xen.xend.XendLogging import log
+from xen.xend.XendBase import XendBase
+from xen.xend import XendAPIStore
+from xen.xend.XendConstants import XS_POOLROOT
+from xen.xend import uuid as genuuid
+from xen.xend.XendError import VmError, XendAPIError, PoolError
+from xen.xend.xenstore.xstransact import xstransact
+from xen.util.sxputils import sxp2map, map2sxp
+
+
+XEND_ERROR_INTERNAL = 'INTERNAL_ERROR'
+XEND_ERROR_UNKOWN_SCHED_POLICY = 'UNKOWN_SCHED_POLICY'
+XEND_ERROR_BAD_POOL_STATE = 'POOL_BAD_STATE'
+XEND_ERROR_POOL_PARAM = 'PARAMETER_ERROR'
+XEND_ERROR_INSUFFICIENT_CPUS = 'INSUFFICIENT_CPUS'
+XEND_ERROR_POOL_RECONF = 'POOL_RECONF'
+XEND_ERROR_INVALID_CPU = 'INVAILD_CPU'
+XEND_ERROR_LAST_CPU_NOT_REM = 'LAST_CPU_NOT_REMOVEABLE'
+
+
+XEN_SCHEDULER_TO_ID = {
+ 'credit' : xen.lowlevel.xc.XEN_SCHEDULER_CREDIT,
+ 'sedf' : xen.lowlevel.xc.XEN_SCHEDULER_SEDF,
+ }
+
+xc = xen.lowlevel.xc.xc()
+
+class XendCPUPool(XendBase):
+ """ CPU Pool management.
+ @ivar pool_lock: Lock to secure modification of pool data
+ @type pool_lock: Rlock
+ """
+
+ pool_lock = threading.RLock()
+
+ def getClass(cls):
+ return "cpu_pool"
+
+ def getAttrRO(cls):
+ attrRO = ['resident_on',
+ 'started_VMs',
+ 'host_CPUs',
+ 'activated',
+ ]
+ return XendBase.getAttrRO() + attrRO
+
+ def getAttrRW(cls):
+ attrRW = ['name_label',
+ 'name_description',
+ 'auto_power_on',
+ 'ncpu',
+ 'sched_policy',
+ 'proposed_CPUs',
+ 'other_config',
+ ]
+ return XendBase.getAttrRW() + attrRW
+
+ def getMethods(cls):
+ methods = ['destroy',
+ 'activate',
+ 'deactivate',
+ 'add_host_CPU_live',
+ 'remove_host_CPU_live',
+ 'add_to_proposed_CPUs',
+ 'remove_from_proposed_CPUs',
+ 'add_to_other_config',
+ 'remove_from_other_config',
+ ]
+ return XendBase.getMethods() + methods
+
+ def getFuncs(cls):
+ funcs = ['create',
+ 'get_by_name_label',
+ ]
+ return XendBase.getFuncs() + funcs
+
+ getClass = classmethod(getClass)
+ getAttrRO = classmethod(getAttrRO)
+ getAttrRW = classmethod(getAttrRW)
+ getMethods = classmethod(getMethods)
+ getFuncs = classmethod(getFuncs)
+
+
+ #
+ # XenAPI function calls
+ #
+
+ def create(cls, record):
+ """ Create a new managed pool instance.
+ @param record: attributes of pool
+ @type record: dict
+ @return: uuid of created pool
+ @rtype: str
+ """
+ new_uuid = genuuid.createString()
+ XendCPUPool(record, new_uuid)
+ XendNode.instance().save_cpu_pools()
+ return new_uuid
+
+ create = classmethod(create)
+
+
+ def get_by_name_label(cls, name_label):
+ """ Query a Pool(ref) by its name.
+ @return: ref of pool
+ @rtype: str
+ """
+ cls.pool_lock.acquire()
+ try:
+ return [ inst.get_uuid()
+ for inst in XendAPIStore.get_all(cls.getClass())
+ if inst.name_label == name_label
+ ]
+ finally:
+ cls.pool_lock.release()
+
+ get_by_name_label = classmethod(get_by_name_label)
+
+
+ def get_cpu_pool_by_cpu_ref(cls, host_cpu):
+ """ Query cpu_pool ref the given cpu belongs to.
+ @param host_cpu: ref of host_cpu to lookup
+ @type host_cpu: str
+ @return: list cpu_pool refs (list contains not more than one
element)
+ @rtype: list of str
+ """
+ node = XendNode.instance()
+ cpu_nr = node.get_host_cpu_field(host_cpu, 'number')
+ for pool_rec in xc.cpupool_getinfo():
+ if cpu_nr in pool_rec['cpulist']:
+ # pool found; return the ref
+ return cls.query_pool_ref(pool_rec['cpupool'])
+ return []
+
+ get_cpu_pool_by_cpu_ref = classmethod(get_cpu_pool_by_cpu_ref)
+
+
+ def get_all_managed(cls):
+ """ Query all managed pools.
+ @return: uuids of all managed pools
+ @rtype: list of str
+ """
+ cls.pool_lock.acquire()
+ try:
+ managed_pools = [ inst.get_uuid()
+ for inst in XendAPIStore.get_all(cls.getClass())
+ if inst.is_managed() ]
+ finally:
+ cls.pool_lock.release()
+ return managed_pools
+
+ get_all_managed = classmethod(get_all_managed)
+
+
+ #
+ # XenAPI methods calls
+ #
+
+ def __init__(self, record, new_uuid, managed_pool=True):
+ XendBase.__init__(self, new_uuid, record)
+ try:
+ self._managed = managed_pool
+ self.name_label = None
+
+ name = record.get('name_label', 'Pool-Unnamed')
+ self._checkName(name)
+ self.name_label = name
+ self.name_description = record.get('name_description',
+ self.name_label)
+ self.proposed_cpus = [ int(cpu)
+ for cpu in record.get('proposed_CPUs', []) ]
+ self.auto_power_on = bool(record.get('auto_power_on', False))
+ self.ncpu = int(record.get('ncpu', 1))
+ self.sched_policy = record.get('sched_policy', '')
+ self.other_config = record.get('other_config', {})
+ except Exception, ex:
+ XendBase.destroy(self)
+ raise ex
+
+
+ def get_resident_on(self):
+ """ Always return uuid of own node.
+ @return: uuid of this node
+ @rytpe: str
+ """
+ return XendNode.instance().uuid
+
+ def get_started_VMs(self):
+ """ Query all VMs currently assigned to pool.
+ @return: ref of all VMs assigned to pool; if pool is not active,
+ an empty list will be returned
+ @rtype: list of str
+ """
+ if self.get_activated():
+ # search VMs related to this pool
+ pool_id = self.query_pool_id()
+ started_VMs = [ vm.get_uuid()
+ for vm in XendDomain.instance().list('all')
+ if vm.get_cpu_pool() == pool_id ]
+ else:
+ # pool not active, so it couldn't have any started VMs
+ started_VMs = []
+
+ return started_VMs
+
+ def get_host_CPUs(self):
+ """ Query all cpu refs of this pool currently asisgned .
+ - Read pool id of this pool from xenstore
+ - Read cpu configuration from hypervisor
+ - lookup cpu number -> cpu ref
+ @return: host_cpu refs
+ @rtype: list of str
+ """
+ if self.get_activated():
+ node = XendNode.instance()
+ pool_id = self.query_pool_id()
+ if pool_id == None:
+ raise PoolError(XEND_ERROR_INTERNAL,
+ [self.getClass(), 'get_host_CPUs'])
+ cpus = []
+ for pool_rec in xc.cpupool_getinfo():
+ if pool_rec['cpupool'] == pool_id:
+ cpus = pool_rec['cpulist']
+
+ # query host_cpu ref for any cpu of the pool
+ host_CPUs = [ cpu_ref
+ for cpu_ref in node.get_host_cpu_refs()
+ if node.get_host_cpu_field(cpu_ref, 'number')
+ in cpus ]
+ else:
+ # pool not active, so it couldn't have any assigned cpus
+ host_CPUs = []
+
+ return host_CPUs
+
+ def get_activated(self):
+ """ Query if the pool is registered in XendStore.
+ If pool uuid is not in XenStore, the pool is not activated.
+ @return: True, if activated
+ @rtype: bool
+ """
+ return self.query_pool_id() != None
+
+ def get_name_label(self):
+ return self.name_label
+
+ def get_name_description(self):
+ return self.name_description
+
+ def get_auto_power_on(self):
+ return self.auto_power_on
+
+ def get_ncpu(self):
+ return self.ncpu
+
+ def get_sched_policy(self):
+ if len(self.sched_policy) == 0:
+ # default scheduler selected
+ return XendNode.instance().get_vcpus_policy()
+ else:
+ return self.sched_policy
+
+ def get_proposed_CPUs(self):
+ return [ str(cpu) for cpu in self.proposed_cpus ]
+
+ def get_other_config(self):
+ return self.other_config
+
+ def set_name_label(self, name_label):
+ self._checkName(name_label)
+ self.name_label = name_label
+ if self._managed:
+ XendNode.instance().save_cpu_pools()
+
+ def set_name_description(self, name_descr):
+ self.name_description = name_descr
+ if self._managed:
+ XendNode.instance().save_cpu_pools()
+
+ def set_auto_power_on(self, auto_power_on):
+ self.auto_power_on = bool(int(auto_power_on))
+ if self._managed:
+ XendNode.instance().save_cpu_pools()
+
+ def set_ncpu(self, ncpu):
+ _ncpu = int(ncpu)
+ if _ncpu < 1:
+ raise PoolError(XEND_ERROR_POOL_PARAM, 'ncpu')
+ self.ncpu = _ncpu
+ if self._managed:
+ XendNode.instance().save_cpu_pools()
+
+ def set_sched_policy(self, sched_policy):
+ if self.get_activated():
+ raise PoolError(XEND_ERROR_BAD_POOL_STATE, 'activated')
+ self.sched_policy = sched_policy
+ if self._managed:
+ XendNode.instance().save_cpu_pools()
+
+ def set_proposed_CPUs(self, proposed_cpus):
+ if self.get_activated():
+ raise PoolError(XEND_ERROR_BAD_POOL_STATE, 'activated')
+ self.proposed_cpus = [ int(cpu) for cpu in proposed_cpus ]
+ if self._managed:
+ XendNode.instance().save_cpu_pools()
+
+ def set_other_config(self, other_config):
+ self.other_config = other_config
+ if self._managed:
+ XendNode.instance().save_cpu_pools()
+
+ def destroy(self):
+ """ In order to destroy a cpu pool, it must be deactivated """
+ self.pool_lock.acquire()
+ try:
+ if self.get_activated():
+ raise PoolError(XEND_ERROR_BAD_POOL_STATE, 'activated')
+ XendBase.destroy(self)
+ finally:
+ self.pool_lock.release()
+ XendNode.instance().save_cpu_pools()
+
+ def activate(self):
+ """ Create pool in hypervisor and add cpus.
+ Preconditions:
+ - pool not already active
+ - enough unbound cpus available
+ Actions:
+ - create pool in hypervisor
+ - select free cpus (preferred from proposed_CPUs list) and bind it
to
+ the pool
+ - create entries in Xenstore
+ """
+ self.pool_lock.acquire()
+ try:
+ if self.get_activated():
+ raise PoolError(XEND_ERROR_BAD_POOL_STATE, 'activated')
+ if self.sched_policy != XendNode.instance().get_vcpus_policy():
+ raise PoolError(XEND_ERROR_UNKOWN_SCHED_POLICY)
+ unbound_cpus = set(self.unbound_cpus())
+ if len(unbound_cpus) < self.ncpu:
+ raise PoolError(XEND_ERROR_INSUFFICIENT_CPUS,
+ [str(self.ncpu), str(len(unbound_cpus))])
+
+ # build list of cpu numbers to bind to pool
+ cpu_set = set(self.proposed_cpus).intersection(unbound_cpus)
+ if len(cpu_set) < self.ncpu:
+ pool_cpus = (list(cpu_set) +
+ list(unbound_cpus.difference(cpu_set)))
+ else:
+ pool_cpus = list(cpu_set)
+ pool_cpus = pool_cpus[0:self.ncpu]
+
+ # create pool in hypervisor
+ pool_id = xc.cpupool_create(
+ sched = XEN_SCHEDULER_TO_ID.get(self.sched_policy, 0))
+
+ self.update_XS(pool_id)
+ # add cpus
+ for cpu in pool_cpus:
+ xc.cpupool_addcpu(pool_id, cpu)
+
+ finally:
+ self.pool_lock.release()
+
+ def deactivate(self):
+ """ Delete pool in hypervisor
+ Preconditions:
+ - pool is activated
+ - no running VMs in pool
+ Actions:
+ - call hypervisor for deletion
+ - remove path of pool in xenstore
+ """
+ self.pool_lock.acquire()
+ try:
+ if not self.get_activated():
+ raise PoolError(XEND_ERROR_BAD_POOL_STATE, 'deactivated')
+ if len(self.get_started_VMs()) != 0:
+ raise PoolError(XEND_ERROR_BAD_POOL_STATE, 'in use')
+
+ pool_id = self.query_pool_id()
+ # remove cpus from pool
+ cpus = []
+ for pool_rec in xc.cpupool_getinfo():
+ if pool_rec['cpupool'] == pool_id:
+ cpus = pool_rec['cpulist']
+ for cpu_number in cpus:
+ xc.cpupool_removecpu(pool_id, cpu_number)
+ xc.cpupool_destroy(pool_id)
+
+ # update XenStore
+ xs_path = XS_POOLROOT + "%s/" % pool_id
+ xstransact.Remove(xs_path)
+ finally:
+ self.pool_lock.release()
+
+ def add_host_CPU_live(self, cpu_ref):
+ """ Add cpu to pool, if it is currently not assigned to a pool.
+ @param cpu_ref: reference of host_cpu instance to add
+ @type cpu_ref: str
+ """
+ if not self.get_activated():
+ raise PoolError(XEND_ERROR_BAD_POOL_STATE, 'deactivated')
+ node = XendNode.instance()
+ number = node.get_host_cpu_field(cpu_ref, 'number')
+
+ self.pool_lock.acquire()
+ try:
+ pool_id = self.query_pool_id()
+ other_pool_ref = self.get_cpu_pool_by_cpu_ref(cpu_ref)
+ if len(other_pool_ref) != 0:
+ raise PoolError(XEND_ERROR_INVALID_CPU,
+ "cpu already assigned to pool '%s'" %
other_pool_ref[0])
+ xc.cpupool_addcpu(pool_id, number)
+ finally:
+ self.pool_lock.release()
+
+ def remove_host_CPU_live(self, cpu_ref):
+ """ Remove cpu from pool.
+ After successfull call, the cpu is free.
+ Remove of the last cpu of the pool is rejected.
+ @param cpu_ref: reference of host_cpu instance to remove
+ @type cpu_ref: str
+ """
+ if not self.get_activated():
+ raise PoolError(XEND_ERROR_BAD_POOL_STATE, 'deactivated')
+ node = XendNode.instance()
+ number = node.get_host_cpu_field(cpu_ref, 'number')
+
+ self.pool_lock.acquire()
+ try:
+ pool_id = self.query_pool_id()
+ pool_rec = {}
+ for pool in xc.cpupool_getinfo():
+ if pool['cpupool'] == pool_id:
+ pool_rec = pool
+ break
+
+ if number in pool_rec['cpulist']:
+ if len(pool_rec['cpulist']) < 2 and pool_rec['n_dom'] > 0:
+ raise PoolError(XEND_ERROR_LAST_CPU_NOT_REM,
+ 'could not remove last cpu')
+ xc.cpupool_removecpu(pool_id, number)
+ else:
+ raise PoolError(XEND_ERROR_INVALID_CPU,
+ 'CPU not assigned to pool')
+ finally:
+ self.pool_lock.release()
+
+ def add_to_proposed_CPUs(self, cpu):
+ if self.get_activated():
+ raise PoolError(XEND_ERROR_BAD_POOL_STATE, 'activated')
+
+ _cpu = int(cpu)
+ if _cpu not in self.proposed_cpus:
+ self.proposed_cpus.append(_cpu)
+ self.proposed_cpus.sort()
+ if self._managed:
+ XendNode.instance().save_cpu_pools()
+
+ def remove_from_proposed_CPUs(self, cpu):
+ if self.get_activated():
+ raise PoolError(XEND_ERROR_BAD_POOL_STATE, 'activated')
+ _cpu = int(cpu)
+ if _cpu in self.proposed_cpus:
+ self.proposed_cpus.remove(_cpu)
+ if self._managed:
+ XendNode.instance().save_cpu_pools()
+
+ def add_to_other_config(self, key, value):
+ self.other_config[key] = value
+ if self._managed:
+ XendNode.instance().save_cpu_pools()
+
+ def remove_from_other_config(self, key):
+ if key in self.other_config:
+ del self.other_config[key]
+ if self._managed:
+ XendNode.instance().save_cpu_pools()
+
+
+ #
+ # Legacy RPC calls
+ #
+ def pool_new(cls, config):
+ try:
+ record = sxp2map(config)
+ if record.has_key('proposed_CPUs') and \
+ not isinstance(record['proposed_CPUs'], types.ListType):
+ record['proposed_CPUs'] = [record['proposed_CPUs']]
+ new_uuid = cls.create(record)
+ except XendAPIError, ex:
+ raise VmError(ex.get_api_error())
+ return new_uuid
+
+ def pool_create(cls, config):
+ try:
+ record = sxp2map(config)
+ if record.has_key('proposed_CPUs') and \
+ not isinstance(record['proposed_CPUs'], types.ListType):
+ record['proposed_CPUs'] = [record['proposed_CPUs']]
+ new_uuid = genuuid.createString()
+ pool = XendCPUPool(record, new_uuid, False)
+ pool.activate()
+ except XendAPIError, ex:
+ raise VmError(ex.get_api_error())
+
+ def pool_start(cls, poolname):
+ pool = cls.lookup_pool(poolname)
+ if not pool:
+ raise VmError('unkown pool %s' % poolname)
+ try:
+ pool.activate()
+ except XendAPIError, ex:
+ raise VmError(ex.get_api_error())
+
+ def pool_list(cls, names):
+ sxprs = []
+ try:
+ node = XendNode.instance()
+ xd = XendDomain.instance()
+ pools = cls.get_all_records()
+ for (pool_uuid, pool_vals) in pools.items():
+ if pool_vals['name_label'] in names or len(names) == 0:
+ # conv host_cpu refs to cpu number
+ cpus = [ node.get_host_cpu_field(cpu_ref, 'number')
+ for cpu_ref in pool_vals['host_CPUs'] ]
+ cpus.sort()
+ pool_vals['host_CPU_numbers'] = cpus
+ vm_names = [ xd.get_vm_by_uuid(uuid).getName()
+ for uuid in pool_vals['started_VMs'] ]
+ pool_vals['started_VM_names'] = vm_names
+ pool_vals['auto_power_on'] =
int(pool_vals['auto_power_on'])
+ sxprs += [[pool_uuid] + map2sxp(pool_vals)]
+ except XendAPIError, ex:
+ raise VmError(ex.get_api_error())
+ return sxprs
+
+ def pool_destroy(cls, poolname):
+ pool = cls.lookup_pool(poolname)
+ if not pool:
+ raise VmError('unkown pool %s' % poolname)
+ try:
+ pool.deactivate()
+ if not pool.is_managed():
+ pool.destroy()
+ except XendAPIError, ex:
+ raise VmError(ex.get_api_error())
+
+ def pool_delete(cls, poolname):
+ pool = cls.lookup_pool(poolname)
+ if not pool:
+ raise VmError('unkown pool %s' % poolname)
+ try:
+ pool.destroy()
+ except XendAPIError, ex:
+ raise VmError(ex.get_api_error())
+
+ def pool_cpu_add(cls, poolname, cpu):
+ pool = cls.lookup_pool(poolname)
+ if not pool:
+ raise VmError('unkown pool %s' % poolname)
+ try:
+ cpu_ref = cls._cpu_number_to_ref(int(cpu))
+ if cpu_ref:
+ pool.add_host_CPU_live(cpu_ref)
+ except XendAPIError, ex:
+ raise VmError(ex.get_api_error())
+
+ def pool_cpu_remove(cls, poolname, cpu):
+ pool = cls.lookup_pool(poolname)
+ if not pool:
+ raise VmError('unkown pool %s' % poolname)
+ try:
+ cpu_ref = cls._cpu_number_to_ref(int(cpu))
+ if cpu_ref:
+ pool.remove_host_CPU_live(cpu_ref)
+ except XendAPIError, ex:
+ raise VmError(ex.get_api_error())
+
+ def pool_migrate(cls, domname, poolname):
+ dom = XendDomain.instance()
+ pool = cls.lookup_pool(poolname)
+ if not pool:
+ raise VmError('unkown pool %s' % poolname)
+ dominfo = dom.domain_lookup_nr(domname)
+ if not dominfo:
+ raise VmError('unkown domain %s' % domname)
+ domid = dominfo.getDomid()
+ if domid is not None:
+ if domid == 0:
+ raise VmError('could not move Domain-0')
+ try:
+ cls.move_domain(pool.get_uuid(), domid)
+ except Exception, ex:
+ raise VmError('could not move domain')
+ dominfo.info['pool_name'] = poolname
+ dom.managed_config_save(dominfo)
+
+ pool_new = classmethod(pool_new)
+ pool_create = classmethod(pool_create)
+ pool_start = classmethod(pool_start)
+ pool_list = classmethod(pool_list)
+ pool_destroy = classmethod(pool_destroy)
+ pool_delete = classmethod(pool_delete)
+ pool_cpu_add = classmethod(pool_cpu_add)
+ pool_cpu_remove = classmethod(pool_cpu_remove)
+ pool_migrate = classmethod(pool_migrate)
+
+
+ #
+ # methods
+ #
+
+ def is_managed(self):
+ """ Check, if pool is managed.
+ @return: True, if managed
+ @rtype: bool
+ """
+ return self._managed
+
+ def query_pool_id(self):
+ """ Get corresponding pool-id of pool instance from XenStore.
+ @return: pool id or None
+ @rytpe: int
+ """
+ self.pool_lock.acquire()
+ try:
+ for pool_id in xstransact.List(XS_POOLROOT):
+ uuid = xstransact.Read(XS_POOLROOT + "%s/" % pool_id, 'uuid')
+ if uuid == self.get_uuid():
+ return int(pool_id)
+ finally:
+ self.pool_lock.release()
+
+ return None
+
+ def update_XS(self, pool_id):
+ """ Write (or update) data in xenstore taken from instance.
+ @param pool_id: Pool id to build path to pool data in xenstore
+ @type pool_id: int
+ """
+ self.pool_lock.acquire()
+ try:
+ xs_path = XS_POOLROOT + "%s/" % pool_id
+ xs_entries = { 'uuid' : self.get_uuid(),
+ 'name' : self.name_label,
+ 'description' : self.name_description
+ }
+ xstransact.Mkdir(xs_path)
+ xstransact.Mkdir(xs_path, 'other_config')
+ xstransact.Write(xs_path, xs_entries)
+ xstransact.Write('%s%s' % (xs_path, 'other_config'),
+ self.other_config)
+ finally:
+ self.pool_lock.release()
+
+ def _checkName(self, name):
+ """ Check if a pool name is valid. Valid names contain alphabetic
+ characters, digits, or characters in '_-.:/+'.
+ The same name cannot be used for more than one pool at the same
+ time.
+ @param name: name
+ @type name: str
+ @raise: PoolError if invalid
+ """
+ if name is None or name == '':
+ raise PoolError(XEND_ERROR_POOL_PARAM, 'Missing Pool Name')
+ if not re.search(r'^[A-Za-z0-9_\-\.\:\/\+]+$', name):
+ raise PoolError(XEND_ERROR_POOL_PARAM, 'Invalid Pool Name')
+
+ pool = self.lookup_pool(name)
+ if pool and pool.get_uuid() != self.get_uuid():
+ raise PoolError(XEND_ERROR_POOL_PARAM,
+ "Pool name '%s' already exists" % name)
+
+
+ #
+ # class methods
+ #
+
+ def recreate_active_pools(cls):
+ """ Read active pool config from hypervisor and create pool instances.
+ - Query pool ids and assigned CPUs from hypervisor.
+ - Query additional information for any pool from xenstore.
+ If an entry for a pool id is missing in xenstore, it will be
+ recreated with a new uuid and generic name (this is an error
case)
+ - Create an XendCPUPool instance for any pool id
+ Function have to be called after recreation of managed pools.
+ """
+ log.debug('recreate_active_pools')
+
+ pool_ids = [ pool_info['cpupool']
+ for pool_info in xc.cpupool_getinfo() ]
+
+ for pool in pool_ids:
+ # read pool data from xenstore
+ path = XS_POOLROOT + "%s/" % pool
+ uuid = xstransact.Read(path, 'uuid')
+ if not uuid:
+ # xenstore entry missing / invaild; create entry with new uuid
+ uuid = genuuid.createString()
+ name = "Pool-%s" % pool
+ try:
+ inst = XendCPUPool( { 'name_label' : name }, uuid, False )
+ inst.update_XS(pool)
+ except PoolError, ex:
+ # log error and skip domain
+ log.error('cannot recreate pool %s; skipping (reason: %s)'
\
+ % (name, ex))
+ else:
+ (name, descr) = xstransact.Read(path, 'name', 'description')
+ other_config = {}
+ for key in xstransact.List(path + 'other_config'):
+ other_config[key] = xstransact.Read(
+ path + 'other_config/%s' % key)
+
+ # check existance of pool instance
+ inst = XendAPIStore.get(uuid, cls.getClass())
+ if inst:
+ # update attributes of existing instance
+ inst.name_label = name
+ inst.name_description = descr
+ inst.other_config = other_config
+ else:
+ # recreate instance
+ try:
+ inst = XendCPUPool(
+ { 'name_label' : name,
+ 'name_description' : descr,
+ 'other_config' : other_config,
+ },
+ uuid, False )
+ except PoolError, ex:
+ # log error and skip domain
+ log.error(
+ 'cannot recreate pool %s; skipping (reason: %s)' \
+ % (name, ex))
+
+ recreate_active_pools = classmethod(recreate_active_pools)
+
+
+ def recreate(cls, record, current_uuid):
+ """ Recreate a pool instance while xend restart.
+ @param record: attributes of pool
+ @type record: dict
+ @param current_uuid: uuid of pool to create
+ @type current_uuid: str
+ """
+ XendCPUPool(record, current_uuid)
+
+ recreate = classmethod(recreate)
+
+
+ def autostart_pools(cls):
+ """ Start managed pools that are marked as autostart pools.
+ Function is called after recreation of managed domains while
+ xend restart.
+ """
+ cls.pool_lock.acquire()
+ try:
+ for inst in XendAPIStore.get_all(cls.getClass()):
+ if inst.is_managed() and inst.auto_power_on and \
+ inst.query_pool_id() == None:
+ inst.activate()
+ finally:
+ cls.pool_lock.release()
+
+ autostart_pools = classmethod(autostart_pools)
+
+
+ def move_domain(cls, pool_ref, domid):
+ cls.pool_lock.acquire()
+ try:
+ pool = XendAPIStore.get(pool_ref, cls.getClass())
+ pool_id = pool.query_pool_id()
+
+ xc.cpupool_movedomain(pool_id, domid)
+ finally:
+ cls.pool_lock.release()
+
+ move_domain = classmethod(move_domain)
+
+
+ def query_pool_ref(cls, pool_id):
+ """ Get pool ref by pool id.
+ Take the ref from xenstore.
+ @param pool_id:
+ @type pool_id: int
+ @return: ref
+ @rtype: str
+ """
+ uuid = xstransact.Read(XS_POOLROOT + "%s/" % pool_id, 'uuid')
+ if uuid:
+ return [uuid]
+ else:
+ return []
+
+ query_pool_ref = classmethod(query_pool_ref)
+
+
+ def lookup_pool(cls, id_or_name):
+ """ Search XendCPUPool instance with given id_or_name.
+ @param id_or_name: pool id or pool nameto search
+ @type id_or_name: [int, str]
+ @return: instane or None if not found
+ @rtype: XendCPUPool
+ """
+ pool_uuid = None
+ try:
+ pool_id = int(id_or_name)
+ # pool id given
+ pool_uuid = cls.query_pool_ref(pool_id)
+ except ValueError:
+ # pool name given
+ pool_uuid = cls.get_by_name_label(id_or_name)
+
+ if len(pool_uuid) > 0:
+ return XendAPIStore.get(pool_uuid[0], cls.getClass())
+ else:
+ return None
+
+ lookup_pool = classmethod(lookup_pool)
+
+
+ def _cpu_number_to_ref(cls, number):
+ node = XendNode.instance()
+ for cpu_ref in node.get_host_cpu_refs():
+ if node.get_host_cpu_field(cpu_ref, 'number') == number:
+ return cpu_ref
+ return None
+
+ _cpu_number_to_ref = classmethod(_cpu_number_to_ref)
+
+
+ def unbound_cpus(cls):
+ """ Build list containing the numbers of all cpus not bound to a pool.
+ Info is taken from Hypervisor.
+ @return: list of cpu numbers
+ @rytpe: list of int
+ """
+ return xc.cpupool_freeinfo()
+
+ unbound_cpus = classmethod(unbound_cpus)
+
diff -r 655dc3bc1d8e tools/python/xen/xm/pool-create.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/python/xen/xm/pool-create.py Fri Apr 17 10:52:08 2009 +0200
@@ -0,0 +1,51 @@
+#============================================================================
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of version 2.1 of the GNU Lesser General Public
+# License as published by the Free Software Foundation.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#============================================================================
+# Copyright (C) 2009 Fujitsu Technology Solutions
+#============================================================================
+
+""" Create a new unmanaged pool.
+"""
+
+import sys
+from xen.xm.main import serverType, SERVER_XEN_API, server
+from xen.xm.pool import parseCommandLine, err, help as help_options
+from xen.util.sxputils import sxp2map
+
+def help():
+ return help_options()
+
+
+def main(argv):
+ try:
+ (opts, config) = parseCommandLine(argv)
+ except StandardError, ex:
+ err(str(ex))
+
+ if not opts:
+ return
+
+ if serverType == SERVER_XEN_API:
+ record = sxp2map(config)
+ if type(record.get('proposed_CPUs', [])) != list:
+ record['proposed_CPUs'] = [record['proposed_CPUs']]
+ ref = server.xenapi.cpu_pool.create(record)
+ if ref:
+ server.xenapi.cpu_pool.activate(ref)
+ else:
+ server.xend.cpu_pool.create(config)
+
+if __name__ == '__main__':
+ main(sys.argv)
+
diff -r 655dc3bc1d8e tools/python/xen/xm/pool-new.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/python/xen/xm/pool-new.py Fri Apr 17 10:51:56 2009 +0200
@@ -0,0 +1,50 @@
+#============================================================================
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of version 2.1 of the GNU Lesser General Public
+# License as published by the Free Software Foundation.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#============================================================================
+# Copyright (C) 2009 Fujitsu Technology Solutions
+#============================================================================
+
+""" Create a new managed pool.
+"""
+
+import sys
+from xen.xm.main import serverType, SERVER_XEN_API, server
+from xen.xm.pool import parseCommandLine, err, help as help_options
+from xen.util.sxputils import sxp2map
+
+
+def help():
+ return help_options()
+
+
+def main(argv):
+ try:
+ (opts, config) = parseCommandLine(argv)
+ except StandardError, ex:
+ err(str(ex))
+
+ if not opts:
+ return
+
+ if serverType == SERVER_XEN_API:
+ record = sxp2map(config)
+ if type(record.get('proposed_CPUs', [])) != list:
+ record['proposed_CPUs'] = [record['proposed_CPUs']]
+ server.xenapi.cpu_pool.create(record)
+ else:
+ server.xend.cpu_pool.new(config)
+
+if __name__ == '__main__':
+ main(sys.argv)
+
diff -r 655dc3bc1d8e tools/python/xen/xm/pool.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/python/xen/xm/pool.py Fri Apr 17 10:52:22 2009 +0200
@@ -0,0 +1,236 @@
+#============================================================================
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of version 2.1 of the GNU Lesser General Public
+# License as published by the Free Software Foundation.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#============================================================================
+# Copyright (C) 2009 Fujitsu Technology Solutions
+#============================================================================
+
+""" Common function of cmds pool-new / pool-create.
+"""
+
+import sys
+import types
+import os
+
+from xen.xend import PrettyPrint
+from xen.xend import sxp
+
+from xen.xm.opts import Opts, set_value, set_true, append_value, OptionError
+
+GOPTS = Opts(use="""[options] [vars]
+
+Create a pool.
+
+Pool creation parameters can be set by command-line switches, from
+a python configuration script or an SXP config file. See documentation
+for --defconfig, --config. Configuration variables can be set using
+VAR=VAL on the command line. For example name=Pool-1 sets name to Pool-1.
+
+""")
+
+GOPTS.opt('help', short='h',
+ fn=set_true, default=0,
+ use="Print this help.")
+
+GOPTS.opt('help_config',
+ fn=set_true, default=0,
+ use="Print the available configuration variables (vars) for the "
+ "configuration script.")
+
+GOPTS.opt('path', val='PATH',
+ fn=set_value, default='.:/etc/xen/pool',
+ use="Search path for configuration scripts. "
+ "The value of PATH is a colon-separated directory list.")
+
+GOPTS.opt('defconfig', short='f', val='FILE',
+ fn=set_value, default='xmdefconfig',
+ use="Use the given Python configuration script."
+ "The configuration script is loaded after arguments have been "
+ "processed. Each command-line option sets a configuration "
+ "variable named after its long option name, and these "
+ "variables are placed in the environment of the script before "
+ "it is loaded. Variables for options that may be repeated have "
+ "list values. Other variables can be set using VAR=VAL on the "
+ "command line. "
+ "After the script is loaded, option values that were not set "
+ "on the command line are replaced by the values set in the script.")
+
+GOPTS.default('defconfig')
+
+GOPTS.opt('config', short='F', val='FILE',
+ fn=set_value, default=None,
+ use="CPU pool configuration to use (SXP).\n"
+ "SXP is the underlying configuration format used by Xen.\n"
+ "SXP configurations can be hand-written or generated from Python "
+ "configuration scripts, using the -n (dryrun) option to print "
+ "the configuration.")
+
+GOPTS.opt('dryrun', short='n',
+ fn=set_true, default=0,
+ use="Dry run - prints the resulting configuration in SXP but "
+ "does not create the CPU pool.")
+
+GOPTS.var('name', val='NAME', fn=set_value, default=None,
+ use="CPU pool name.")
+
+GOPTS.var('sched', val='SCHED', fn=set_value, default='credit',
+ use="Scheduler to use for the CPU pool.")
+
+GOPTS.var('cpus', val='CPUS', fn=set_value, default=1,
+ use="CPUS to assign to the CPU pool.")
+
+GOPTS.var('other_config', val='OTHER_CONFIG', fn=append_value, default=[],
+ use="Additional info for CPU pool")
+
+
+def sxp2map(sxp_val):
+ record = {}
+ for x in sxp_val:
+ if isinstance(x, (types.ListType, types.TupleType)) \
+ and len(x) > 1:
+ if isinstance(x[1], (types.ListType, types.TupleType)):
+ record[x[0]] = sxp2map(x[1])
+ else:
+ record[x[0]] = x[1]
+ return record
+
+def err(msg):
+ print >> sys.stderr, "Error: %s" % msg
+ sys.exit(-1)
+
+def make_cpus_config(cfg_cpus):
+ """ Taken from XendConfig. """
+ # Convert 'cpus' to list of list of ints
+
+ cpus_list = []
+ # Convert the following string to list of ints.
+ # The string supports a list of ranges (0-3),
+ # seperated by commas, and negation (^1).
+ # Precedence is settled by order of the string:
+ # "0-3,^1" -> [0,2,3]
+ # "0-3,^1,1" -> [0,1,2,3]
+ def cnv(s):
+ l = []
+ for c in s.split(','):
+ if c.find('-') != -1:
+ (x, y) = c.split('-')
+ for i in range(int(x), int(y)+1):
+ l.append(int(i))
+ else:
+ # remove this element from the list
+ if len(c) > 0:
+ if c[0] == '^':
+ l = [x for x in l if x != int(c[1:])]
+ else:
+ l.append(int(c))
+ return l
+
+ if type(cfg_cpus) == list:
+ if len(cfg_cpus) > 0 and type(cfg_cpus[0]) == list:
+ # If sxp_cfg was created from config.sxp,
+ # the form of 'cpus' is list of list of string.
+ # Convert 'cpus' to list of list of ints.
+ # Conversion examples:
+ # [['1']] -> [[1]]
+ # [['0','2'],['1','3']] -> [[0,2],[1,3]]
+ try:
+ for c1 in cfg_cpus:
+ cpus = []
+ for c2 in c1:
+ cpus.append(int(c2))
+ cpus_list.append(cpus)
+ except ValueError, e:
+ raise err('cpus = %s: %s' % (cfg_cpus, e))
+ else:
+ # Conversion examples:
+ # ["1"] -> [[1]]
+ # ["0,2","1,3"] -> [[0,2],[1,3]]
+ # ["0-3,^1","1-4,^2"] -> [[0,2,3],[1,3,4]]
+ try:
+ for c in cfg_cpus:
+ cpus = cnv(c)
+ cpus_list.append(cpus)
+ except ValueError, e:
+ raise err('cpus = %s: %s' % (cfg_cpus, e))
+ else:
+ # Conversion examples:
+ # cpus=1:
+ # "1" -> [[1]]
+ # "0-3,^1" -> [[0,2,3]]
+ # cpus=2:
+ # "1" -> [[1],[1]]
+ # "0-3,^1" -> [[0,2,3],[0,2,3]]
+ try:
+ cpus_list = cnv(cfg_cpus)
+ except ValueError, e:
+ err('cpus = %s: %s' % (cfg_cpus, e))
+ return cpus_list
+
+def make_config(vals):
+ config = ['pool']
+ config += [['name_label', vals.name]]
+ config += [['sched_policy', vals.sched]]
+ if type(vals.cpus) == int:
+ config += [['ncpu', vals.cpus], ['proposed_CPUs' , []]]
+ elif type(vals.cpus) == str and len(vals.cpus) > 1 and vals.cpus[0] == '#':
+ try:
+ config += [['ncpu', int(vals.cpus[1:])], ['proposed_CPUs' , []]]
+ except ValueError, ex:
+ err('Wrong illegal of parameter "cpus"')
+ else:
+ prop_cpus = make_cpus_config(vals.cpus)
+ config += [['ncpu', len(prop_cpus)],
+ ['proposed_CPUs'] + prop_cpus]
+ other_config = []
+ for entry in vals.other_config:
+ if '=' in entry:
+ (var, val) = entry.strip().split('=', 1)
+ other_config.append([var, val])
+ config += [['other_config'] + other_config]
+ return config
+
+def parseCommandLine(argv):
+ GOPTS.reset()
+ args = GOPTS.parse(argv)
+
+ if GOPTS.vals.help or GOPTS.vals.help_config:
+ if GOPTS.vals.help_config:
+ print GOPTS.val_usage()
+ return (None, None)
+
+ # Process remaining args as config variables.
+ for arg in args:
+ if '=' in arg:
+ (var, val) = arg.strip().split('=', 1)
+ GOPTS.setvar(var.strip(), val.strip())
+ if GOPTS.vals.config:
+ try:
+ config = sxp.parse(file(GOPTS.vals.config))[0]
+ except IOError, ex:
+ raise OptionError("Cannot read file %s: %s" % (config, ex[1]))
+ else:
+ GOPTS.load_defconfig()
+ if not GOPTS.getopt('name') and GOPTS.getopt('defconfig'):
+ GOPTS.setopt('name', os.path.basename(
+ GOPTS.getopt('defconfig')))
+ config = make_config(GOPTS.vals)
+
+ if GOPTS.vals.dryrun:
+ PrettyPrint.prettyprint(config)
+ return (None, None)
+
+ return (GOPTS, config)
+
+def help():
+ return str(GOPTS)
+
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