[libvirt] [libvirt-test-API][PATCH] Add connection_getDomainCapabilities test case
jiahu
jiahu at redhat.com
Thu Mar 26 09:06:04 UTC 2015
This case will test getDomainCapabilities API, and
connection_getDomainCapabilities test case was added to
test_connection.conf
---
cases/test_connection.conf | 10 +
repos/virconn/connection_getDomainCapabilities.py | 438 ++++++++++++++++++++++
2 files changed, 448 insertions(+)
create mode 100644 repos/virconn/connection_getDomainCapabilities.py
diff --git a/cases/test_connection.conf b/cases/test_connection.conf
index 7552024..5719937 100644
--- a/cases/test_connection.conf
+++ b/cases/test_connection.conf
@@ -47,3 +47,13 @@ virconn:free_pages
0
pagesize
4k,2M
+
+virconn:connection_getDomainCapabilities
+ emulatorbin
+ /usr/libexec/qemu-kvm
+ arch
+ x86_64
+ machine
+ pc-i440fx-rhel7.0.0
+ virttype
+ kvm
diff --git a/repos/virconn/connection_getDomainCapabilities.py b/repos/virconn/connection_getDomainCapabilities.py
new file mode 100644
index 0000000..f0cfa1f
--- /dev/null
+++ b/repos/virconn/connection_getDomainCapabilities.py
@@ -0,0 +1,438 @@
+#!/usr/bin/env python
+# test getDomainCapabilities() API for libvirtd
+
+import os
+import libvirt
+import hashlib
+import fcntl
+
+from xml.dom import minidom
+from libvirt import libvirtError
+from src import sharedmod
+from utils import utils
+
+required_params = ('emulatorbin','arch','machine','virttype',)
+optional_params = {}
+
+QEMU_CAPS = ""
+API_FILE = "/tmp/caps_from_api.xml"
+CMD = "rm -rf %s"
+OVMF = "/usr/share/OVMF/OVMF_CODE.fd"
+IOMMU = "/sys/kernel/iommu_groups/"
+VFIO = "/dev/vfio/vfio"
+KVM = "/dev/kvm"
+KVM_CHECK_EXTENSION = 44547
+KVM_CAP_IOMMU = 18
+maxcpu = 0
+
+ovmf_f = False
+drive = False
+drive_forma = False
+drive_readonly = False
+blk_sg_io = False
+usb_storage = False
+device = False
+scsi_generic = False
+vfio_pci = False
+
+def clean_env(logger):
+ """
+ clean testing environment
+ """
+ status, output = utils.exec_cmd(CMD % API_FILE, shell=True)
+ if status != 0:
+ logger.error("Can not delete %s" % API_FILE)
+ else:
+ logger.debug("Deleted %s successfully" % API_FILE)
+
+def get_hypervisor_ver(emulatorbin,logger):
+ """
+ Obtain qemu-kvm's version, and return a number value of version
+ """
+ RPM = "rpm -qf %s"
+ status, package = utils.exec_cmd(RPM % emulatorbin, shell=True)
+ if not status:
+ logger.debug("The package is %s" % package)
+ else:
+ logger.debug("The package is %s" % package)
+ return 0
+ package = package[0].split('-')
+ version = ""
+ for item in package:
+ if not item.isalnum():
+ for v in item.split("."):
+ version = version + v.rjust(3,"0")
+ break
+ return int(version)
+
+def validate_caps_from_hv(emulatorbin,logger):
+ """
+ Validate the relative caps between libvirt and qemu-kvm
+ """
+ F1 = "%s -h| grep \"\-drive\""
+ F2 = "%s -h| grep \"format=\""
+ F3 = "%s -h| grep \"readonly=\""
+ F4 = "%s -h| grep \"^\\-device\""
+ l = [F1,F2,F3,F4]
+ flags = []
+ for item in l:
+ status, temp = utils.exec_cmd(item % emulatorbin, shell=True)
+ if not status:
+ flags.append(True)
+ logger.debug("Got: %s from vh" % temp)
+ else:
+ flags.append(False)
+ logger.debug("Got: %s from vh" % temp)
+ if get_hypervisor_ver(emulatorbin,logger) >= 11000:
+ flags.append(True)
+ else:
+ flags.append(False)
+ libvirt_f = [drive,drive_forma,drive_readonly,device,blk_sg_io]
+ if flags == libvirt_f:
+ return True
+ else:
+ return False
+
+def generate_hash(emulatorbin,logger):
+ """
+ generate file name using sha256
+ """
+ global QEMU_CAPS
+ QEMU_CAPS = "/var/cache/libvirt/qemu/capabilities/"
+ file_name = hashlib.sha256(emulatorbin).hexdigest()
+ QEMU_CAPS = QEMU_CAPS + file_name + ".xml"
+ logger.debug("Cache file is %s" % QEMU_CAPS)
+
+def get_maxcpu(machine,logger):
+ """
+ return maxcpu for given machine type from QEMU_CAPS xml
+ """
+ global maxcpu
+ xml = minidom.parse(QEMU_CAPS)
+ qemu = xml.getElementsByTagName('qemuCaps')[0]
+ for item in qemu.getElementsByTagName('machine'):
+ if item.getAttribute('name') == machine:
+ maxcpu = int(item.getAttribute('maxCpus'))
+ return True
+
+def get_os_flags(logger):
+ """
+ Read results from QEMU_CAPS file and set three flags
+ """
+ global drive, drive_forma, drive_readonly
+ xml = minidom.parse(QEMU_CAPS)
+ qemu = xml.getElementsByTagName('qemuCaps')[0]
+ for item in qemu.getElementsByTagName('flag'):
+ if item.getAttribute('name') == "drive":
+ drive = True
+ if item.getAttribute('name') == "drive-format":
+ drive_forma = True
+ if item.getAttribute('name') == "drive-readonly":
+ drive_readonly = True
+ logger.debug("drive = %s; drive_format = %s; drive_readonly = %s"\
+ % (drive,drive_forma,drive_readonly))
+ return True
+
+def get_disk_flags(logger):
+ """
+ Read results from QEMU_CAPS file and set two flags
+ """
+ global blk_sg_io,usb_storage
+ xml = minidom.parse(QEMU_CAPS)
+ qemu = xml.getElementsByTagName('qemuCaps')[0]
+ for item in qemu.getElementsByTagName('flag'):
+ if item.getAttribute('name') == "blk-sg-io":
+ blk_sg_io = True
+ if item.getAttribute('name') == "usb-storage":
+ usb_storage = True
+ logger.debug("blk_sg_io = %s; usb_storage = %s" % (blk_sg_io,usb_storage))
+ return True
+
+def get_hostdev_flags(logger):
+ """
+ Read results from QEMU_CAPS file and set three flags
+ """
+ global device, scsi_generic,vfio_pci
+ xml = minidom.parse(QEMU_CAPS)
+ for item in xml.getElementsByTagName('flag'):
+ if item.getAttribute('name') == "device":
+ device = True
+ if item.getAttribute('name') == "scsi-generic":
+ scsi_generic = True
+ if item.getAttribute('name') == "vfio-pci":
+ vfio_pci = True
+ logger.debug("device = %s; scsi_generic = %s; vfio_pci = %s"\
+ % (device,scsi_generic,vfio_pci))
+ return True
+
+def supportsPassthroughVFIO(logger):
+ """
+ check the vfio mode
+ """
+ if not os.path.exists(IOMMU):
+ logger.error("File %s is not exist" % IOMMU)
+ return False
+ if not os.path.exists(VFIO):
+ logger.error("Module %s is not exist" % VFIO)
+ return False
+ if len(os.listdir(IOMMU)) > 0:
+ return True
+ return False
+
+def supportsPassthroughKVM(logger):
+ """
+ check the legacy kvm mode
+ """
+ if not os.path.exists(KVM):
+ logger.error("File %s is not exist" % KVM)
+ return False
+ with open(KVM, "r") as kvmfd:
+ if fcntl.ioctl(kvmfd,KVM_CHECK_EXTENSION,KVM_CAP_IOMMU) == 1:
+ return True
+ return False
+
+def check_common_values(given_list,logger):
+ """
+ Check path/machine/arch/vcpu parameters
+ """
+ xml = minidom.parse(API_FILE)
+ dom = xml.getElementsByTagName('domainCapabilities')[0]
+ #get path/machine/arch/vcpu from xml generated by api
+ path = dom.getElementsByTagName('path')[0].childNodes[0].data
+ domain = dom.getElementsByTagName('domain')[0].childNodes[0].data
+ machine = dom.getElementsByTagName('machine')[0].childNodes[0].data
+ arch = dom.getElementsByTagName('arch')[0].childNodes[0].data
+ vcpu = dom.getElementsByTagName('vcpu')[0].getAttribute('max')
+ #put all of them to a list
+ list1 = [str(path),str(machine),str(arch),int(vcpu)]
+ logger.debug("Got 4 common parameters: %s" % list1)
+ if given_list == list1:
+ logger.debug("Checking common value: Pass")
+ else:
+ logger.debug("Checking common value: Fail")
+ return False
+ return True
+
+def check_os(arch, logger):
+ """
+ check the os part
+ """
+ alltype = ["rom","pflash"]
+ allreadonly = ["yes","no"]
+ type_api = []
+ readonly_api = []
+ xml = minidom.parse(API_FILE)
+ dom = xml.getElementsByTagName('domainCapabilities')[0]
+ os = dom.getElementsByTagName('os')[0]
+ loader = os.getElementsByTagName('loader')[0]
+ ovmf1 = os.getElementsByTagName('value')[0]
+ ovmf1 = ovmf1.childNodes[0].data
+ logger.debug("Got OVMF path is %s" % ovmf1)
+ if ovmf_f and ovmf1 == OVMF:
+ pass
+ else:
+ return False
+ enum = loader.getElementsByTagName('enum')
+ for item in enum:
+ if item.getAttribute('name') == "type":
+ value = item.getElementsByTagName("value")
+ for temp in value:
+ type_api.append(str(temp.childNodes[0].data))
+ if item.getAttribute('name') == "readonly":
+ value = item.getElementsByTagName("value")
+ for temp in value:
+ readonly_api.append(str(temp.childNodes[0].data))
+ if not (drive & drive_forma):
+ alltype.remove("pflash")
+ if not drive_readonly:
+ allreadonly = []
+ logger.debug("Got type list: %s" % type_api)
+ logger.debug("Got readonly list: %s" % readonly_api)
+ if not type_api == alltype:
+ return False
+ if not readonly_api == allreadonly:
+ return False
+ return True
+
+def check_disk(logger):
+ """
+ check the disk part in <devices>
+ """
+ alldevice = ["disk","cdrom","floppy","lun"]
+ allbus = ["ide","fdc","scsi","virtio","usb"]
+ device_api = []
+ bus_api = []
+ xml = minidom.parse(API_FILE)
+ dom = xml.getElementsByTagName('domainCapabilities')[0]
+ devices = dom.getElementsByTagName('devices')[0]
+ disk = devices.getElementsByTagName('disk')[0]
+ enum = disk.getElementsByTagName('enum')
+ for item in enum:
+ if item.getAttribute('name') == "diskDevice":
+ value = item.getElementsByTagName("value")
+ for temp in value:
+ device_api.append(str(temp.childNodes[0].data))
+ if item.getAttribute('name') == "bus":
+ value = item.getElementsByTagName("value")
+ for temp in value:
+ bus_api.append(str(temp.childNodes[0].data))
+ if not blk_sg_io:
+ alldevice.remove("lun")
+ if not usb_storage:
+ allbus.remove("usb")
+ logger.debug("Got diskDevice list: %s" % device_api)
+ logger.debug("Got bus list: %s" % bus_api)
+ if not device_api == alldevice:
+ return False
+ if not bus_api == allbus:
+ return False
+ return True
+
+def check_hostdev(logger):
+ """
+ check the hostdev part in <devices>
+ """
+ allmode = ["subsystem"]
+ allpolicy = ["default","mandatory","requisite","optional"]
+ allsubsys = ["usb","pci","scsi"]
+ allbackend = ["default","default","vfio","kvm"]
+ mode_api = []
+ policy_api = []
+ subsys_api = []
+ backend_api = []
+ caps_api = []
+ xml = minidom.parse(API_FILE)
+ dom = xml.getElementsByTagName('domainCapabilities')[0]
+ devices = dom.getElementsByTagName('devices')[0]
+ hostdev = devices.getElementsByTagName('hostdev')[0]
+ enum = hostdev.getElementsByTagName('enum')
+ for item in enum:
+ if item.getAttribute('name') == "mode":
+ value = item.getElementsByTagName("value")
+ for temp in value:
+ mode_api.append(str(temp.childNodes[0].data))
+ if item.getAttribute('name') == "startupPolicy":
+ value = item.getElementsByTagName("value")
+ for temp in value:
+ policy_api.append(str(temp.childNodes[0].data))
+ if item.getAttribute('name') == "subsysType":
+ value = item.getElementsByTagName("value")
+ for temp in value:
+ subsys_api.append(str(temp.childNodes[0].data))
+ if item.getAttribute('name') == "capsType":
+ value = item.getElementsByTagName("value")
+ for temp in value:
+ caps_api.append(str(temp.childNodes[0].data))
+ if item.getAttribute('name') == "pciBackend":
+ value = item.getElementsByTagName("value")
+ for temp in value:
+ backend_api.append(str(temp.childNodes[0].data))
+ #WIP, we need more codes to check vfio
+ if not (drive & device & scsi_generic):
+ allsubsys.remove("scsi")
+ if not (supportsPassthroughKVM(logger) & device):
+ allbackend.remove("default")
+ allbackend.remove("kvm")
+ if not (supportsPassthroughVFIO(logger) & vfio_pci):
+ allbackend.remove("default")
+ allbackend.remove("vfio")
+ logger.debug("Got mode list: %s" % mode_api)
+ logger.debug("Got startupPolicy list: %s" % policy_api)
+ logger.debug("Got subsysType list: %s" % subsys_api)
+ logger.debug("Got capsType list: %s" % caps_api)
+ logger.debug("Got pciBackend list: %s" % backend_api)
+ if not mode_api == allmode:
+ return False
+ if not policy_api == allpolicy:
+ return False
+ if not subsys_api == allsubsys:
+ return False
+ if not backend_api == allbackend:
+ return False
+ return True
+
+def connection_getDomainCapabilities(params):
+ """
+ test API for getDomainCapabilities in class virConnect
+ """
+ global ovmf_f
+ logger = params['logger']
+ emulatorbin = params['emulatorbin']
+ arch = params['arch']
+ machine = params['machine']
+ virttype = params['virttype']
+
+ try:
+ logger.info("The specified emulatorbin is %s" \
+ % emulatorbin)
+ logger.info("The specified architecture is %s" \
+ % arch)
+ logger.info("The specified machine is %s" \
+ % machine)
+ logger.info("The specified virttype is %s" \
+ % virttype)
+
+ generate_hash(emulatorbin, logger)
+ if not os.path.exists(QEMU_CAPS):
+ logger.error("cache file, %s is not exist" % QEMU_CAPS)
+ return 1
+ if os.path.exists(OVMF):
+ ovmf_f = True
+ else:
+ logger.warning("cache file, %s is not exist" % OVMF)
+ if not get_maxcpu(machine,logger):
+ logger.debug("get maxcpu: Fail")
+ return 1
+ if not get_os_flags(logger):
+ logger.debug("get os: Fail")
+ return 1
+ if not get_disk_flags(logger):
+ logger.debug("get disk: Fail")
+ return 1
+ if not get_hostdev_flags(logger):
+ logger.debug("get hostdev: Fail")
+ return 1
+ if not validate_caps_from_hv(emulatorbin,logger):
+ logger.error("Failed to compare caps")
+ return 1
+ else:
+ logger.debug("Successed to compare caps")
+
+ conn = sharedmod.libvirtobj['conn']
+ caps_from_api = conn.getDomainCapabilities\
+(emulatorbin,arch,machine,virttype,0)
+
+ logger.debug("The return of API: %s" % caps_from_api)
+ fd = open(API_FILE,"w+")
+ fd.write(caps_from_api)
+ fd.flush()
+
+ given_list = [emulatorbin,machine,arch,maxcpu]
+ if not check_common_values(given_list,logger):
+ logger.info("Failed to validate common elements")
+ return 1
+ else:
+ logger.info("Successed to validate common elements")
+ if not check_os(arch,logger):
+ logger.info("Failed to validate os block")
+ return 1
+ else:
+ logger.info("Successed to validate os block")
+ if not check_disk(logger):
+ logger.info("Failed to validate disk block")
+ return 1
+ else:
+ logger.info("Successed to validate disk block")
+ if not check_hostdev(logger):
+ logger.info("Failed to validate hostdev block")
+ return 1
+ else:
+ logger.info("Successed to validate hostdev block")
+
+ except libvirtError, e:
+ logger.error("API error message: %s" % e.message)
+ clean_env(logger)
+ return 1
+
+ clean_env(logger)
+ return 0
--
1.8.1.4
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