In order to allow a guest to use SMT/hyperthreading, we should enable passing in of the sockets, cores, and threads values when creating a template. All three values must be specified, as per the topology descr at http://libvirt.org/formatdomain.html#elementsCPU Signed-off-by: Christy Perez <christy@linux.vnet.ibm.com> --- docs/API.md | 7 +++++++ src/kimchi/API.json | 28 ++++++++++++++++++++++++++-- src/kimchi/control/templates.py | 11 ++++++++--- src/kimchi/osinfo.py | 2 +- src/kimchi/vmtemplate.py | 22 ++++++++++++++++++++++ 5 files changed, 64 insertions(+), 6 deletions(-) diff --git a/docs/API.md b/docs/API.md index d75c55f..cb4d541 100644 --- a/docs/API.md +++ b/docs/API.md @@ -200,6 +200,13 @@ Represents a snapshot of the Virtual Machine's primary monitor. Independent Computing Environments * null: Graphics is disabled or type not supported * listen: The network which the vnc/spice server listens on. + * cpu_info *(optional)*: CPU-specific information. + * topology: Specify sockets, threads, and cores to run the virtual CPU + threads on. + All three are required in order to specify cpu topology. + * sockets - The number of sockets to use. + * cores - The number of cores per socket. + * threads - The number of threads per core. ### Sub-Collection: Virtual Machine Network Interfaces diff --git a/src/kimchi/API.json b/src/kimchi/API.json index c3fc5e3..d510634 100644 --- a/src/kimchi/API.json +++ b/src/kimchi/API.json @@ -26,6 +26,28 @@ ] } } + }, + "cpu_info": { + "description": "Configure CPU specifics for a VM.", + "type": "object", + "properties": { + "topology": { + "description": "Configure the guest CPU topology.", + "type": "object", + "properties": { + "sockets": { + "type": "number" + }, + "cores": { + "type": "number" + }, + "threads": { + "type": "number" + } + }, + "required": [ "sockets", "cores", "threads" ] + } + } } }, "properties": { @@ -438,7 +460,8 @@ "type": "array", "items": { "type": "string" } }, - "graphics": { "$ref": "#/kimchitype/graphics" } + "graphics": { "$ref": "#/kimchitype/graphics" }, + "cpu_info": { "$ref": "#/kimchitype/cpu_info" } }, "additionalProperties": false, "error": "KCHAPI0001E" @@ -608,7 +631,8 @@ "type": "array", "items": { "type": "string" } }, - "graphics": { "$ref": "#/kimchitype/graphics" } + "graphics": { "$ref": "#/kimchitype/graphics" }, + "cpu_info": { "$ref": "#/kimchitype/cpu_info" } }, "additionalProperties": false, "error": "KCHAPI0001E" diff --git a/src/kimchi/control/templates.py b/src/kimchi/control/templates.py index e17fa54..5ef35ce 100644 --- a/src/kimchi/control/templates.py +++ b/src/kimchi/control/templates.py @@ -38,13 +38,14 @@ def __init__(self, model, ident): self.update_params = ["name", "folder", "icon", "os_distro", "storagepool", "os_version", "cpus", "memory", "cdrom", "disks", "networks", - "graphics"] + "graphics", "cpu_info"] self.uri_fmt = "/templates/%s" self.clone = self.generate_action_handler('clone') @property def data(self): - return {'name': self.ident, + return_data = { + 'name': self.ident, 'icon': self.info['icon'], 'invalid': self.info['invalid'], 'os_distro': self.info['os_distro'], @@ -56,4 +57,8 @@ def data(self): 'storagepool': self.info['storagepool'], 'networks': self.info['networks'], 'folder': self.info.get('folder', []), - 'graphics': self.info['graphics']} + 'graphics': self.info['graphics'] + } + if (self.info.get('cpu_info')): + return_data['cpu_info'] = self.info['cpu_info'] + return return_data diff --git a/src/kimchi/osinfo.py b/src/kimchi/osinfo.py index 1ad353c..8492bb7 100644 --- a/src/kimchi/osinfo.py +++ b/src/kimchi/osinfo.py @@ -32,7 +32,7 @@ 'power': ('ppc', 'ppc64')} -common_spec = {'cpus': 1, 'cpu_cores': 1, 'cpu_threads': 1, 'memory': 1024, +common_spec = {'cpus': 1, 'cpu_sockets': '1', 'cpu_cores': 1, 'cpu_threads': 1, 'memory': 1024, 'disks': [{'index': 0, 'size': 10}], 'cdrom_bus': 'ide', 'cdrom_index': 2, 'mouse_bus': 'ps2'} diff --git a/src/kimchi/vmtemplate.py b/src/kimchi/vmtemplate.py index 761bac5..c64e61d 100644 --- a/src/kimchi/vmtemplate.py +++ b/src/kimchi/vmtemplate.py @@ -359,6 +359,22 @@ def _get_input_output_xml(self): input_output += sound % self.info return input_output + def _get_cpu_xml(self): + + cpu_info = self.info.get('cpu_info') + if cpu_info is not None: + cpu_topo = cpu_info.get('topology') + if cpu_topo is not None: + return """ + <cpu> + <topology sockets='%(sockets)s' + cores='%(cores)s' + threads='%(threads)s'/> + </cpu> + """ % cpu_topo + + return "" + def to_vm_xml(self, vm_name, vm_uuid, **kwargs): params = dict(self.info) params['name'] = vm_name @@ -371,6 +387,11 @@ def to_vm_xml(self, vm_name, vm_uuid, **kwargs): graphics = kwargs.get('graphics') params['graphics'] = self._get_graphics_xml(graphics) + if params.get('cpu_info') is not None: + params['cpu_info'] = self._get_cpu_xml() + else: + params['cpu_info'] = '' + # Current implementation just allows to create disk in one single # storage pool, so we cannot mix the types (scsi volumes vs img file) storage_type = self._get_storage_type() @@ -401,6 +422,7 @@ def to_vm_xml(self, vm_name, vm_uuid, **kwargs): <uuid>%(uuid)s</uuid> <memory unit='MiB'>%(memory)s</memory> <vcpu>%(cpus)s</vcpu> + %(cpu_info)s <os> <type arch='%(arch)s'>hvm</type> <boot dev='hd'/> -- 1.9.3