def virsh_memtune(params, env):
"""
Use virsh memtune to set memtune of guest
"""
options = ""
if params.memtune.hardlimit:
options += "--hard-limit %d " % params.memtune.hardlimit
if params.memtune.softlimit:
options += "--soft-limit %d " % params.memtune.softlimit
if params.memtune.swaphardlimit:
options += "--swap-hard-limit %d " % params.memtune.swaphardlimit
params.doc_logger.info(STEPS + "# virsh memtune %s %s --live" %
(params.guest_name, options))
params.doc_logger.info(RESULT + "")
if params.restart_libvirtd:
start = [Provider('$guest_name.active.memtune', Provider.SET)]
end = [Provider('$guest_name.active.memtune', Provider.SET)]
def restart_and_memtune(name, func, params, env):
params.doc_logger.info(STEPS + """
# service libvirtd restart
Stopping libvirtd daemon: [ OK ]
Starting libvirtd daemon: [ OK ]
""")
func(params, env)
raise MistClearException
return Mist({"x": (start, end)}, restart_and_memtune)
class setmem_mist(StaticMist):
"""
TODO
"""
_area = {"set_mem": ([Provider('$guest_name.active', Provider.SET),
Provider('$guest_name.active.curmem', Provider.CLEAR)],
[Provider('$guest_name.active', Provider.SET),
Provider('$guest_name.active.curmem', Provider.SET)])}
_doc_func = no_memballon
def custom_func(self, func, params, env):
pass
def check_mem_device_audit(params, env):
"""
Check the audit system
"""
params.doc_logger.info(STEPS + "Make sure the auditd is running")
start1 = [
Provider('$guest_name.active', Provider.SET),
Provider('$guest_name.active.memdevice', Provider.CLEAR)
]
end1 = [Provider('$guest_name.active.memdevice', Provider.SET)]
start2 = [
Provider('$guest_name.active', Provider.CLEAR),
Provider('$guest_name.active.memdevice', Provider.CLEAR)
]
end2 = [Provider('$guest_name.active.memdevice', Provider.SET)]
start3 = [Provider('$guest_name.active.memdevice', Provider.SET)]
end3 = [
Provider('$guest_name.active.memdevice', Provider.CLEAR),
Provider('$guest_name.active', Provider.SET)
]
def check_mem_audit_log(name, func, params, env):
"""
Check the memory device audit log
"""
if name is not 'start':
old_mem = env.get_data('$guest_name.active').data.get('memory')
else:
old_mem = 0
func(params, env)
active_info = env.get_data('$guest_name.active').data
new_mem = active_info.get('memory')
params.doc_logger.info("")
params.doc_logger.info(STEPS +
"# ausearch -m VIRT_RESOURCE -ts recent")
params.doc_logger.info(RESULT + """
...
type=VIRT_RESOURCE ... msg='virt=kvm resrc=mem reason=%s vm="%s" uuid=%s old-mem=%d new-mem=%d exe="/usr/sbin/libvirtd" hostname=? addr=? terminal=? res=success'
...
""" % ('start' if name is 'start' else 'update', active_info.get(
'name'), active_info.get('uuid'), old_mem, new_mem))
return Mist(
{
"attach": (start1, end1),
"start": (start2, end2),
"detach": (start3, end3)
}, check_mem_audit_log)
def host_hugepage_config(params, env):
"""
set environment on host
"""
if params.hugetlbfs_mount is None:
params.hugetlbfs_mount = '/dev/hugepages'
params.doc_logger.info(STEPS + '# cat /etc/libvirt/qemu.conf\n' + \
'hugetlbfs_mount = "%s"\n' % params.hugetlbfs_mount)
params.doc_logger.info("""
# service libvirtd restart
Stopping libvirtd daemon: [ OK ]
Starting libvirtd daemon: [ OK ]
""")
if params.hugetlbfs_mount is not '':
params.doc_logger.info("""
Then guest memory backing files will be put in %s/libvirt/qemu/.
#mount -t hugetlbfs hugetlbfs %s
2> reserve memory for huge pages, e.g:
#sysctl vm.nr_hugepages=600
""" % (params.hugetlbfs_mount, params.hugetlbfs_mount))
else:
# We need do some other things after env reached or require
start = [
Provider('$guest_name.active', Provider.CLEAR),
Provider('$guest_name.config.hugepage', Provider.SET)
]
end = [
Provider('$guest_name.active', Provider.SET),
Provider('$guest_name.config.hugepage', Provider.SET)
]
def mist_host_hugepage(name, func, params, env):
params.doc_logger.info(STEPS +
"# virsh start %s" % params.guest_name)
params.doc_logger.info(RESULT +
"error: Failed to start domain %s" %
params.guest_name)
params.doc_logger.info(
"error: internal error hugepages are disabled by administrator config"
)
raise MistDeadEndException()
return Mist({'active': (start, end)}, mist_host_hugepage)
def __init__(self):
self._test_entry.add(Provider('$guest_name.config', Provider.SET))