Revision 75b21ca0 lib/hypervisor/hv_kvm.py
| b/lib/hypervisor/hv_kvm.py | ||
|---|---|---|
| 1977 | 1977 |
"""Verifies that hotplug is supported. |
| 1978 | 1978 |
|
| 1979 | 1979 |
Hotplug is *not* supported in case of: |
| 1980 |
- qemu versions < 1.0 |
|
| 1981 | 1980 |
- security models and chroot (disk hotplug) |
| 1982 | 1981 |
- fdsend module is missing (nic hot-add) |
| 1983 | 1982 |
|
| 1984 | 1983 |
@raise errors.HypervisorError: in one of the previous cases |
| 1985 | 1984 |
|
| 1986 | 1985 |
""" |
| 1987 |
output = self._CallMonitorCommand(instance.name, self._INFO_VERSION_CMD) |
|
| 1988 |
# TODO: search for netdev_add, drive_add, device_add..... |
|
| 1989 |
match = self._INFO_VERSION_RE.search(output.stdout) |
|
| 1990 |
if not match: |
|
| 1991 |
raise errors.HotplugError("Try hotplug only in running instances.")
|
|
| 1992 |
v_major, v_min, _, _ = match.groups() |
|
| 1993 |
if (int(v_major), int(v_min)) < (1, 0): |
|
| 1994 |
raise errors.HotplugError("Hotplug not supported for qemu versions < 1.0")
|
|
| 1995 |
|
|
| 1996 | 1986 |
if dev_type == constants.HOTPLUG_TARGET_DISK: |
| 1997 | 1987 |
hvp = instance.hvparams |
| 1998 | 1988 |
security_model = hvp[constants.HV_SECURITY_MODEL] |
| ... | ... | |
| 2009 | 1999 |
raise errors.HotplugError("Cannot hot-add NIC."
|
| 2010 | 2000 |
" fdsend python module is missing.") |
| 2011 | 2001 |
|
| 2002 |
def HotplugSupported(self, instance): |
|
| 2003 |
"""Checks if hotplug is generally supported. |
|
| 2004 |
|
|
| 2005 |
Hotplug is *not* supported in case of: |
|
| 2006 |
- qemu versions < 1.0 |
|
| 2007 |
- for stopped instances |
|
| 2008 |
|
|
| 2009 |
@raise errors.HypervisorError: in one of the previous cases |
|
| 2010 |
|
|
| 2011 |
""" |
|
| 2012 |
output = self._CallMonitorCommand(instance.name, self._INFO_VERSION_CMD) |
|
| 2013 |
# TODO: search for netdev_add, drive_add, device_add..... |
|
| 2014 |
match = self._INFO_VERSION_RE.search(output.stdout) |
|
| 2015 |
if not match: |
|
| 2016 |
raise errors.HotplugError("Try hotplug only in running instances.")
|
|
| 2017 |
v_major, v_min, _, _ = match.groups() |
|
| 2018 |
if (int(v_major), int(v_min)) < (1, 0): |
|
| 2019 |
raise errors.HotplugError("Hotplug not supported for qemu versions < 1.0")
|
|
| 2020 |
|
|
| 2012 | 2021 |
def _CallHotplugCommand(self, name, cmd): |
| 2013 | 2022 |
output = self._CallMonitorCommand(name, cmd) |
| 2014 | 2023 |
# TODO: parse output and check if succeeded |
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